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Home My WebLink About03/25/2020 SPECIAL PC NOTICEMeeting Location: Municipal Center Apple 7100147th Street West Valley Apple Valley, Minnesota 55124 March 25, 2020 SPECIAL PLANNING COMMISSION TENTATIVE AGENDA 7:00 PM 1. Call to Order 2. Approve Agenda 3. Approve Consent Agenda Items ConsentAgendaltems are consideredroutineandwillbe enacted with a single motion, without discussion, unless a commissioner or citizen requests to have any item separately considered. Itwill then be moved to the land use/action items for consideration. A. Approve Minutes of March 4, 2020, Regular Meeting 4. Public Hearings 5. Land Use / Action Items A. Orchard Place — PC19-22-ZS Consider the Following Requests: 1. Rezoning 35 Acres from "SG" (Sand and Gravel) to "RB" (Retail business) 2. Subdivision of 45 Acres by Preliminary Plat to Create Four (4) Lots and Three (3) Outlots Location: Northwest Corner of 157th Street West and Pilot Knob Road Petitioner: HJ Development, LLP and Rockport, LLC 6. Other Business 7. Adj ourn Regular meetings and this Special meeting are broadcast live on Charter Communications Cable, Channel 180. Agendas and meeting broadcasts are available on the City's Web Site at www.cPi!(-)Li )p1ei,alley.org. Any other meeting procedures and access information due to Pandemic Emergency Orders will also be published in advance, at the website. Apple Valley ITEM: PLANNING COMMISSION MEETING DATE: SECTION: Description: Approve Minutes of March 4, 2020, Regular Meeting 3.A. March 25, 2020 Consent Agenda Staff Contact: t epartment I Division: Mari Salamanca, Planning Department Assistant ;orn.rnunity Development Department ACTION REQUESTED: Approve minutes of regular meeting of March 4, 2020. SUMMARY: The minutes of the last regular Planning Commission meeting are attached for your review and approval. BACKGROUND: State statute requires the creation and preservation of meeting minutes which document the official actions and proceedings of public governing bodies. BUDGET IMPACT: N/A ATTACHMENTS: Minutes REVIEWERS: Department Reviewer Action Date Community Development pp Department Clerk, Mari Approved 3/13/2020 - 9:52 AM CITY OF APPLE VALLEY PLANNING COMMISSION MINUTES MARCH 4, 2020 1. CALL TO ORDER The City of Apple Valley Planning Commission meeting was called to order by Chair Melander at 7:00 p.m. Members Present: Chair Tom Melander, Tim Burke, Jodi Kurtz, Paul Scanlan and David Schindler. Members Absent: Ken Alwin and Keith Diekmann Staff Present: City Attorney Sharon Hills, Community Development Director Bruce Nordquist, City Planner Tom Lovelace, Planner Kathy Bodmer, Planner/ Economic Development Specialist Alex Sharpe, and Department Assistant Joan Murphy. 2. APPROVAL OF AGENDA Chair Melander asked if there were any changes to the agenda. MOTION: Commissioner Burke moved, seconded by Commissioner Kurtz, approving the agenda. Ayes - 5 - Nays - 0. 3. CONSENT ITEMS MOTION: Commissioner Burke moved, seconded by Commissioner Schindler, approving the minutes of the meeting of February 19, 2020. Ayes - 3 - Nays — 0. Abstained — 2 (Melander and Scanlan) 4. ANNUAL BUSINESS MEETING A. Nominate and Approve Officers Chair Melander opened the annual business meeting and asked for nominations. The Commission nominated and elected officer positions amongst themselves for Chair, Vice -Chair and Secretary. The officers, given only one nomination for each office, were accepted by unanimous consent under Robert's Rules of Order: MOTION: Commissioner Burke moved, seconded by Commissioner Schindler to nominate Thomas Melander to continue to serve as the Chair of the Planning Commission for one year. Ayes - 5 - Nays — 0. MOTION: Commissioner Scanlan moved, seconded by Commissioner Schindler to nominate Tim Burke to continue to serve as the Vice -Chair of the Planning Commission for one year. Ayes - 5 - Nays — 0. CITY OF APPLE VALLEY Dakota County, Minnesota Planning Commission Minutes March 4, 2020 Page 2 of 3 MOTION: Commissioner Scanlan moved, seconded by Commissioner Kurtz to nominate David Schindler to serve as Secretary of the Planning Commission for another year. Ayes - 5 - Nays —0. 5. PUBLIC HEARINGS - NONE - 6. LAND USE/ACTION ITEMS A. Consider Ordinance Amendments Related to Special Events, Temporary Signage, and Mobile Food Units Planner/ Economic Development Specialist Alex Sharpe stated a public hearing for a draft ordinance on special events, temporary signage, and mobile food units was held on February 5, 2020. The ordinance applies to private outdoor events only, and does not impact City sponsored events or events occurring within a park. Recommended changes to the draft ordinance. 1) Remove the total number of non-profit commercial promotions, but still require a permit and documentation that the group is a non-profit. 2) Having worked with the Police Department it is recommended that an event with 1,000 or more cyclists passing through the City require a permit. A goal of this ordinance is to create a new classification of events as current code does not address such events that are more than simple neighborhood events such as sidewalk sales, promotional sales, grilled hot dog/burger fundraisers have evolved. New/added events included employee functions with food trucks, promotional events with information, merchandise, and music, parking lot music programs, private race events which utilize a school, public roadways, parks, and trails. Proposed ordinance changes relate to events which are not contained within a park such as those in the right-of-way, on private business property, or at religious institutions and school events; changes would apply to an outdoor concert with amplified music or a marathon/5k. To coincide with the draft changes to the promotions and events sections of the code, several other chapters needed to be updated including: temporary signs, right of way regulations, transient merchant, and vending cart regulations. Staff will work with the Police Department and City Clerk to make appropriate fee schedule changes to address private event costs to the City. MOTION: Commissioner Burke moved, seconded by Commissioner Schindler recommending approval of the draft ordinance amending Chapter 155 for outdoor promotions, outdoor special events, and mobile food units. Ayes - 5 - Nays - 0. CITY OF APPLE VALLEY Dakota County, Minnesota Planning Commission Minutes March 4, 2020 Page 3 of 3 7. OTHER BUSINESS A. Review of upcoming schedule and other updates. Community Development Director Bruce Nordquist stated that the next regular Planning Commission meeting would take place Wednesday, March 18, 2020, at 7:00 p.m. 8. ADJOURNMENT Hearing no further comments from the Planning Staff or Planning Commission, Chair Melander asked for a motion to adjourn. MOTION: Commissioner Burke moved, seconded by Commissioner Scanlan to adjourn the meeting at 7:11 p.m. Ayes - 5 - Nays - 0. Respectfully Submitted, /s/ Mari Salamanca Mari Salamanca, Planning Department Assistant Approved by the Apple Valley Planning Commission on Tom Melander, Chair rr• 000 ITEM: 5.A. 4600 09 - Apple PLANNING COMMISSION MEETING DATE: March 25, 2020 Valley SECTION: Land Use /Action Items Description: Orchard Place - PC19-22-ZS Staff Contact: Department / Division: Thomas Lovelace, City Planner Community Development Department Applicant: Project Number: HJ Development, LLP and Rockport, LLC �PC19-22-ZS Applicant Date: 12/30/2019 60 Days: 2/28/2020 1 120 Days: 4/27/2020 ACTION REQUESTED: If the Planning Commission concurs, staff is recommending the following actions: 1. A motion to recommend approval of the rezoning of Lots 1-4, and Outlots B and C, Apple Place, according to the proposed preliminary plat; from "SG" (Sand and Gravel) to "RB" (Retail Business); subject to the removal of the property from the Fischer Property Mining Conditional Use Permit. 2. A motion to recommend approval of the Orchard Place preliminary plat, subject to the following: • Approval is subject to the appropriate rezoning, which must be completed prior to final plat approval • The final plat shall be as shown on the preliminary plat, dated March 4, 2020, configured to have four (4) lots and three (3) outlots; and the plat shall be filed for record with Dakota County Recorder prior to the issuance of any building permit(s). • Dedication of 115 feet of right-of-way for the west half of Pilot Knob Road as indicated on the submitted preliminary plat, dated March 4, 2020. • Dedication of the north 50 feet of right-of-way for 157th Street West as indicated on the submitted preliminary plat, dated March 4, 2020. • Dedication of 120 feet of right-of-way for 155th Street West as indicated on the submitted preliminary plat, dated March 4, 2020. • Dedication on the final plat of drainage and utility easements within the plat sufficient to serve all lots, either as defined or blanket easements. • The Applicant shall be responsible for the installation of. sanitary sewer and services; water main and services; storm sewer and facilities; streets; trail and sidewalks; street lights; utilities and traffic control (including signals) as necessary to serve the plat, constructed in accordance with adopted City standards. All, costs associated with the design and installation of these improvements shall be paid by the Applicant or assessed against the property in accordance with the feasibility report for Project 2019-139 (Mixed Business Campus Public Improvements), to be approved by the City Council. • The awarding of the construction contracts for Projects 2019-139 (Mixed Business Campus Public Improvements), 2020-134 (155th Street West and Pilot Knob Road Improvements), and 2020-136 (Orchard Place Utility Improvements) shall be required prior to City Council approval of the final plat. • Agreements(s) waiving the right to object to assessments identified in the feasibility report for Project 2019-139 shall be executed by the property owner(s) prior to City Council approval of construction contracts for Project 2019-139 (Mixed Business Campus Public Improvements), 2020-134 (155th Street West and Pilot Knob Road Improvements), and 2020-136 (Orchard Place Utility Improvements). ■ Park dedication requirements shall be satisfied in accordance with Section 153.29 of the City Code. • To satisfy storm water pond dedication requirements Developer shall design and grade a regional storm water detention facility sized to meet the over-all needs of the Property in accordance with adopted City standards for storm water management. • Dedication of one foot (P) wide easements restricting direct private street/driveway access to 155th and 157th Streets West except at locations approved by the City. • Installation of pedestrian improvements in accordance with the City's adopted Trail and Sidewalk Policies, to consist of eight -foot (8') wide bituminous pathways along 155th Street West. • Installation of a public (or private) street lighting system constructed to City and Dakota Electric Association standards. • All landscaped areas shall be provided with automatic irrigation. • All lots and outlots are required to have access for ingress/egress to a public street. Easement(s) necessary to provide access are required to be submitted and approved by the City Attorney prior to City Council approval of the final plat. SUMMARY: For consideration is a request from HJ Development, LLP and Rockport, LLC for approval of a rezoning of a 35-acre parcel from "SG" (Sand and Gravel) to "RB" (Retail Business) and the subdivision of 45 acres into four (4) lots and three (3) outlots. The proposed preliminary plat has been revised to include an additional lot, which has been carved out of Outlot B. Included in the subdivision will be the dedication of approximately 1,500 lineal feet of road right-of-way (r-o-w) for future 155th Street West, 1,400 lineal feet of r-o-w for Pilot Knob Road and 500 lineal feet of r-o-w for the north half of 157th Street West. The site is located at the northwest corner of 157th Street West and Pilot Knob Road. The site is part of the Fischer Sand and Aggregate mining operation, which has a conditional use permit (C.U.P.) that allows for the extraction and processing of aggregate materials from the site. A condition of the proposed rezoning shall be the removal of the subject property from the C.U.P. Given Pandemic Emergency Orders, the Planning Commission meeting will be conducted and managed by remote electronic connection to be established for Commissioners and the public to participate. Additional information to participate will be shared at the City's website at www.cityofapplevalley.org in advance of the meeting. BACKGROUND: Comprehensive Plan: The subject property is currently guided "C" (Commercial) on the approved 2030 and proposed 2040 Comprehensive Plan Land Use Maps. Commercial areas include a wide variety of retail, office, and service uses that vary in intensity and off -site impacts. The City uses the zoning ordinance to regulate the intensity and characteristics of development. Lower -intensity districts include "LB" (Limited Business) and "NCC" (Neighborhood Convenience Center). Higher -intensity districts include "GB" (General Business) and "RB" (Retail Business). In each district land use and performance standards such as parking, building setbacks, storm water infiltration, access and lot coverage set the parameters for development. The 2030 Comprehensive Plan shows the subject property in the South Central Planning Area (SCPA). This area is to be considered an expansion area comparable in size to the Cobblestone Lake commercial development, which is located in the northeast corner of 157th Street West and Pilot Knob Road. Within that 25-acre site is a 180,000-sq. ft. Super Target and an additional 52,500 sq. ft. of commercial space. Additional commercial development within the SCPA is intended to be on a community scale to provide goods and services to the surrounding neighborhoods. By making it a community shopping district of limited size, the Plan seeks to minimize competition for businesses that belong in the downtown commercial core. The subject property, with exception of the ponding area, is currently guided "C" (Commercial) on the 2040 Comprehensive Plan Land Use Map. Commercial areas include a wide variety of retail, office and service uses that vary in intensity and off -site impacts. The City uses the zoning ordinance to regulate the intensity and characteristics of development. Lower -intensity districts include "LB" (Limited Business) and "NCC" (Neighborhood Convenience Center). Higher -intensity districts include "GB" (General Business) and "RB" (Retail Business). In each district land use and performance standards such as parking, building setbacks, storm water infiltration, access and lot coverage set the parameters for development. The ponding area has an open space/water designation. The proposing ponding area is consistent with the designation. Zoning: The subject property is currently zoned "SG" (Sand and Gravel), which allows for the excavation, extraction, hauling, mining, stockpiling or processing of sand and gravel deposits; and buildings and equipment, including concrete and asphalt plants as conditional uses. The applicant has indicated that they would like to rezone the property to "RB" (Retail Business). Section 155.155 of the zoning ordinance describes the "RB" zoning district as "areas that are centrally located to serve the need for general retail sales". Some of the permitted uses within this district include a wide variety of retail, including Class I and III restaurants, and on -sale wine and/or 3.2% liquor in conjunction with a restaurant. Such uses as carwash operations, Class II restaurants, and on -sale liquor are permitted conditional uses. Initial construction in new shopping centers in the "RB" zoning district shall include a minimum of 20,000 sq. ft. of floor area to ensure that the center will function as described in Section 155.155. The ordinance also requires that an overall concept plan shall be submitted and approved by the city, which shall include the following: • The architectural style of all the structures; • parking; • driveways; • landscaping and screening; and • adequate spaces for future community facilities, when the facilities are to be part of the center. The Cub shopping area, Time Square and Apple Valley Square are examples of shopping centers that are zoned "RB". Other applicable zoning districts for a development such as this would be the "SC" (Regional Shopping Center) and "PD" (Planned Development) districts. Section 155.170 of the zoning ordinance describes the "SC" district as "an area designed to serve the monthly shopping needs of a population from a geographical area which extends beyond the corporate limits of the city". This district requires the initial construction of a minimum of 100,000 sq. ft. of floor area to ensure that the center will function as described in Section 155.170. It also requires the submittal and approval of an overall plan that will include: • The architectural style of all the structures; • parking; • driveways; • landscaping and screening; and • a preliminary plat of all the lots, including those for peripheral development. There is currently no land in the city that is zoned "SC". Many of the larger commercial/retail areas in the city are zoned "PD" (Planned Development). These include Fischer Marketplace, Hillcrest Acres, Cobblestone Lake, and Southport Centre. A planned development is defined as a urban development having two or more principal uses and having specialized performance standards relating to an overall approved development plan to provide for an optimal land use relationship. This type of zoning for the site has been discussed and the interest is not there for the creation of such a district. The applicant submitted a sketch plan for review by the Planning Commission at their November 6, 2019, meeting, which showed four (4) retail buildings totaling 25,200 sq. ft. and one (1) 6,500-sq. ft. car wash operation on 7.1 acres. The Phase I property summary indicated 16,800 sq. ft. of restaurant area and 8,400 sq. ft. of retail area. The plan also showed an additional 204,200 sq. ft. of space and one future development pad. The phasing presented during the sketch plan review would be consistent with the "RB" zoning district. Preliminary Plat: The applicant originally proposed to subdivide 45 acres of property into three (3) lots and three (3) outlots. They have revised their plat to include an additional lot, which has been carved out of Outlot B. The four (4) lots, which are located in the southeast corner of the 45-acre parcel will be used for commercial/retail development. Public street right-of-way will be dedicated for a section of 155th Street West, the west 115 feet of Pilot Knob Road, and a portion of the north 50 feet of 157th Street West. Lots 1, 2 and 4 will abut a public street, but will not have any direct access to those public streets. Lot 3 will have no public street frontage. A lot such as this is described as a landlocked parcel, which is defined as a lot or parcel without direct access to a public street. As a general rule landlocked parcels that are served by private easements will not be permitted. The City may permit landlocked parcels in a commercial complex provided they have access to a public street by an easement over another parcel within the same complex. Access to the property contained in the preliminary plat will be via an internal private roadway system These roadways are located over and across Lots 1-4 and Outlots B and C. Therefore, cross access easements will be required for all the lots and Outlots and B and C. Two access driveways currently exist along the north side of 157th Street West and are identified on the site plan. The most westerly access is a full access and the easterly driveway, which is located across from English Avenue, will allow right -in only access to the site. A one -foot (F) wide easement, which will restrict direct driveway/private street access restrict any additional access from 157th Street West. The site plan shows three (3) access driveways along the south side of 155th Street West, which will be extended approximately 1,500 feet west from Pilot Knob Road and will have a temporary cul-de-sac at its terminus. Two are proposed as full access intersections with a third access is proposed as a right-in/right-out only. The property directly abutting 155th Street West will be platted as outlots and will be reserved for future development. Therefore, a one -foot (l') access restriction easement should be established that will limit access from the plat area to 155th Street West except at the location of a private street access located along either side of the common lot line of Outlots B and C. This easement can be amended when the outlots are replatted for future development. As stated previously, a temporary cul-de-sac will be located at the west end of 155th Street West. A temporary easement shall be dedicated over and across the cul-de-sac outside of the 155th Street West right-of-way. This easement will remain in place until the public street is extended further west. Finally, the original plans showed a proposed right -in only access from Pilot Knob Road, which is a county road. The Dakota County Plat Commission has reviewed this proposal and stated that they would not allow the proposed access. The applicant has removed that access from their revised plans. The County will restrict any access from Pilot Knob Road to the property within the plat. Outlot A will be used for storm water ponding purposes, while Outlots B and C: will be reserved for future commercial/retail development. A drainage and utility easement will be dedicated over all of the Outlot A. The original plat showed the dedication of a 50-foot wide drainage and utility easement along the common boundary line of Lots 1 and 2 and Outlots B and C. This easement area will be the location of utilities that will serve the plat. Other smaller drainage and utility easements were extended from the 50-foot easement to serve the Lots 1-3. Staff requested that the 50- foot easement be expanded to 60 feet, which the applicant has done. Ten foot (10') wide easements for drainage and utilities, street, sidewalk, street lights, and tree plantings along the entire perimeter of lots wherever abutting public road right-of-ways and five foot (5') wide drainage and utility easements along all common lot lines shall be dedicated on the final plat. These easements have been identified on the revised plat. Dakota County Review: Because the proposed subdivision is located adjacent to a County road, it is subject to review by the Dakota County Plat Commission. The plans were reviewed by the Plat Commission at its January 22, 2020, meeting and their comments are included in an attached letter. Site Plan: The applicant has provided a preliminary development plan for the 45-acre parcel. It shows the location of buildings, parking lots and access drives on the three lots as well as future development scenarios on Outlots B and C. Review of this plan is not part of this request and should be used for reference purposes only. Grading Plan: The grading plan shows the mass grading of the site, including the construction of storm water ponding areas in Outlot A and to the north of 155th Street West, which is outside of the property to be platted. Some of the ponding area south of 155th Street West will be located outside of Outlot A. Drainage and utility easements shall be dedicated over all of the ponding area and any pipes used for collection to and discharge from the ponding area. The City Engineer reviewed the original proposed grading plans and had several comments that were included in a memo, dated January 31, 2020. Based upon those comments, the applicant submitted a revised grading plan, which has been reviewed by the City Engineer. His comments are included in the attached memo, dated March 13, 2020. Availability of Municipal Utilities: Watermain and sanitary sewer lines are currently located in the 157th Street West right-of-way. Utility service to the site will be made via connections to the existing lines. The City Engineer has reviewed the original utility plan and his comments were contained in the January 31, 2020, memo. A revised plan has been submitted which has been reviewed by the City Engineer. His comments on the revised plan are contained in his attached memo. Storm sewer lines will be installed throughout the proposed plat that will collect runoff and transport it to the ponding area in Outlot A. Because the sewer lines traverse across multiple lots and outlots, public drainage and utility easements shall be established on the final plat over and across those lines. Street Classifications/Circulation: The proposed plat abuts Pilot Knob Road to the east 155th Street West to the north, and 157th Street West to the south. Pilot Knob Road is classified as an A Minor Expander and the other two streets are classified a Minor Collectors. The City Engineer and the city's traffic consultant have reviewed the applicant's traffic analysis and their comments are included the City Engineer's memo. Recreation Issues: Park dedication requirements are required as part of any subdivision and are determined based upon the parkland demand created by the use contained within each subdivision as it relates to the generation of person -residents. The amount of parkland required for each person -resident is based on the need for parkland to achieve the park services standard which the City has set through its historic parkland development. Parkland dedication requirements will be determined at the time of approval of the preliminary plat. The site plan shows a pathway that will connect to the existing tunnel under 157th Street West in the southwest corner of the proposed development and extend north through Outlot A to the south side of 155th Street West. This trail section will be part of the North Creek Greenway, a 17.5-mile multi -use greenway trail and natural corridor connecting Lebanon Hills Regional Park and the Vermillion River. The trail will traverse the cities of Eagan, Apple Valley, Lakeville, Farmington and Empire Township, providing opportunities for both recreation and transportation. The necessary easements for this trail shall be established as part of the platting of the subject property. Public Hearing Comments: A public hearing on this proposal was held on February 5, 2020. The hearing was opened, no comments were received and the hearing was closed. BUDGET IMPACT: N/A ATTACHMENTS: Correspondence Memo Memo Memo Location Map Comp Plan Map Zoning Map Zoning Map Plan Set C O U N T Y gDakota County Surveyor's Office Western Service Center 14955 Galaxie Avenue • Apple Valley, MN 55124 952.891-7087 Fax 952.891-7127 • www co.dakota.mn.us January 24, 2020 City of Apple Valley 7100 147th Street W. Apple Valley, MN 55124 Re: ORCHARD PLACE The Dakota County Plat Commission met on January 22, 2020, to consider the preliminary plat of the above referenced plat. The plat is adjacent to CSAH 31 (Pilot Knob Rd.) and is therefore subject to the Dakota County Contiguous Plat Ordinance. The proposed plat includes commercial development along CSAH 31 between 155th Street West and 157th Street West. The right-of-way needs are 100-feet of half right of way along CSAH 31 for a future 6-lane roadway, which is shown on the plat. The access spacing guidelines are %-mile full access. However, there is an existing %-mile full access spacing at 155th Street and 157th Street, which was agreed upon through the "2007 Dakota County CSAH 31 Corridor Study". The site is proposing a right -in only access between 155th Street and 157th Street at the 1/8-mile location. The Plat Commission stated that there is already a deviation to the existing access spacing guidelines with the compromise/agreement through the "Study" from %Z-mile full access spacing to %-mile full access spacing between 155th and 157th Streets. The traffic study did indicate that there would be only limited impacts to the County Road System at the proposed location. However, as stated, there is no benefit to the County Road System with the proposed restricted access location. After much discussion, the Plat Commission stated that they would not allow the proposed right -in access. Restricted access symbols should be shown along all CSAH 31. The Plat Commission has approved the preliminary plat provided that the described conditions are met. The Ordinance requires submittal of a final plat for review by the Plat Commission before a recommendation is made to the County Board of Commissioners. Traffic volumes on CSAH 31 are 24,000 ADT and are anticipated to be 35,000 ADT by the year 2030. No work shall commence in the County right of way until a permit is obtained from the County Transportation Department and no permit will be issued until the plat has been filed with the County Recorder's Office. The Plat Commission does not review or approve the actual engineering design of proposed accesses or other improvements to be made in the right of way. Nothing herein is intended to restrict or limit Dakota County's rights with regards to Dakota County rights of way or property. The Plat Commission highly recommends early contact with the Transportation Department to discuss the permitting process which reviews the design and may require construction of highway improvements, including, but not limited to, turn lanes, drainage features, limitations on intersecting street widths, medians, etc. Please contact Butch McConnell regarding permitting questions at (952) 891-7115 or Todd Tollefson regarding Plat Commission or Plat Ordinance questions at (952) 891-7070. Sincerely, ';t f;. Todd B. Tollefson Secretary, Plat Commission c: Chris Moe, HJ Development Will Matzek, Kimley-Horn d<Imley>»Horn MEMORANDUM To: Branden Anderson, PE, City Engineer From. Will Matzek, P.E., CPESC Kimley-Hom and Associates, Inc. Date: March 4, 2020 Apple Valley HJ Development — Orchard Place Stormwater Management Plan Review Subject: City of Apple Valley, MN City Project No.: 2019-139 Project No.: N14.118878 Kimley-Horn has reviewed the comments provided by the City of Apple Valley, dated February 18, 2020, and has modified the plans accordingly. The comments and responses are listed below. Responses to comments are in bold italics. ITEMS TO ADDRESS COMMENTS 1. Drainage calculations with an accompanying drainage area map for the private storm sewer as shown on C200 of the Preliminary Site Development plans should be provided for review. The Drainage Report has been updated to include drainage maps and HydroCAD model reports for the interim and full build -out conditions. 2. The D-8 and D-9 drainage areas as shown on sheet EX-1 of the Drainage Exhibits package appears to not represent the proposed drainage pattern shown on C200 of the Preliminary Site Development plans. The contours on C200 depict a larger portion of the southeast comer of Orchard Place draining to WVR-P54.6. If future storm sewer will be configured such that the southeast corner of Orchard Place will drain to WVR-P54.3, then a minimum of T of freeboard between the high water level of WVR-P54.3 (937.40) and the proposed finish floors should be provided. A drainage area map as stated above may provide clarity to this comment. All other proposed buildings provide enough freeboard between the propose high water level and proposed finish floor. Grading for the mass grading (interim) condition has been revised to more closely match the full build -out condition. See the Interim Drainage Map in the Drainage Report. A HydroCAD model was also generated for the interim condition. These results can be seen in the Interim HydroCAD Model Report in the Drainage Report. The lowest FFE on -site is proposed to be 941.00. The highest HWL of any pond is 937.50 in the full build -out condition and 935.12 in the interim condition. Kimley>»Horn Page 2 3. Discrepancies within the report and model output were identified, specifically between measured impervious area tributary to pretreatment basins. Please revise to ensure these two documents coincide with one another. The Drainage Report has been updated to maintain consistency between the report and model. 4. A 10' wide maintenance bench, 1' —2' above the NWL, with a maximum slope of 10% should be constructed around the entire perimeter of the pretreatment basins. These maintenance benches were originally shown on the typical section included with the Preliminary Stormwater Management Memorandum dated November 27, 2018 but were removed in subsequent submittals. Maintenance benches have been provided on the top of berms separating pretreatment ponds and wet ponds. The maintenance access design and locations were discussed and agreed to in January, 2019 and depicted on the drainage submittal on April 10, 2019. 5. Please add slope labels or provide AutoCAD drawings of the proposed grading to verify that the designated 8' —10' wide pond maintenance access routes have a maximum slope of 10%. Slope labels have been added to maintenance access routes on Sheet C201. 6. WVR-P54.4 provides 0.5' of separation between the NWL and the top of the submerged 24" pipe. Adjust the design to achieve 1' of separation between the top of pipe and NWL. The pipe in WVR-P54.4 has been adjusted to have 1 foot of separation between the top of the pipe and the NWL. 7. Pretreatment basin outlet pipes exceed allowable outflow velocity of 6 fps. Below is a summary of the calculated velocities at each pond outlet using Manning's formula. The Drainage Report only shows the velocity of the controlling device. The outlet pipes of the pretreatment basins do not control. Using the flow of the controlling devices and area of the outlet pipe, velocities in these outlet pipes are depicted below. (Q=VA) Cross Section Pond Outlet Flow (cfs) per Area of Outlet Pipe Pipe Velocity (fps) HydroCAD (sq. ft.) WVR-P54.3 65.27 48" = 12.57 sq. ft. 5.19 WVR-P54.4 26.89 30" = 4.91 sq. ft. 5.48 WVR-P54.5 Future Pond WVR-P54.6 27.76 30" = 4.91 sq. ft. 5.65 The velocities shown in the HydroCAD model during the 100-year event also exceeds 6 fps. The velocities shown in the HydroCAD model are for the controlling devices. The outlet pipes of the pretreatment basins do not control. 651-645-4197 Ki ey)Morn Page 3 8. Previous comments by City staff requested that the HWL of WVR-P54.1 not exceed 934.5 it order to provide sufficient freeboard to the existing North Creek Greenway underpass and trail. The current HWL of WVR-P54.1 is slightly higher that934.5 and the previous submittal. The southern pond WVR-P54.1 has been adjusted and storage has been increased to achieve a HWL of 934.50 for this pond. 9. The primary outlet to WVR-P54.2, which consist of 4-4" orifices, is located l' above the defined NWL. Please lower the primary outlet to match the NWL to ensure the basin draws back down to the defined normal water level after an event. The entire system provides a water quality volume of 1 " over the impervious area of the Site in the Full Build -Out condition. This volume is located below the invert of the outlet and above the infiltration bench —1 foot of depth. The pipe is placed 1 foot above the base of the infiltration bench to ensure I" of stormwater runoff over the impervious area will be infiltrated. 10. WVR-P54.1's 8" orifice outlet, which is cut out of the sealing panel of the proposed penstock, is represented in the HydroCAD model as a 164' 8" RCP pipe. Please revise the model to simulate the 8" orifice appropriately. This orifice is also located 1' above the defined NWL and should be lowered to match the NWL. The allowable outflow rate from WVR-P54.1 into the existing storm sewer system is 2.3 cfs. The 8" orifice has been adjusted to be a 6.5" orifice to abide by the flowrequirement of 2.3 cfs It is cut into a penstock to allow for maintenance and alleviate the potential for clogging of this orifice. The model has been adjusted accordingly to accommodate this as an orifice. Also, the orifice is 1' above the defined NWL to allow for storm water quality infiltration volume (1" over impervious area). 11. Based on previous comments, discarded volumes in the HydroCAD model still appear very large (approximately 40.3 ac-ft of infiltration) when compared to preliminary calculations. Please recalculate discarded volume after adjusting outlet elevation to the NWL. The Northern Pond discards 0.88 cfs for 8.7 hours while the Southern Pond discards 0.99 cfs for 12 hours. This results in 40.4 ac-ft of discarded volume. Much of this volume is a result of the 1' depth that is required to be infiltrated. 12. The overflow structures with open grates should be pulled back into the banks of the ponds to avoid steep slopes and the need to rip rap around the structures. The design and locations of outlet control structures including rip -rap around these structures were discussed and agreed to in January, 2019 and depicted on the drainage submittal on April 10, 2019. am ey ) Page 4 13. Revise erosion control plan to reflect Minnesota NPDES Construction Permit section 23.9 which states all stabilization needs to be,completed within seven (7) calendar days after the construction activity in any portion of the site temporarily or permanently ceases. Note on Erosion Control Plan has been updated. 14. Revise erosion control plan to provide sediment basins for common drainage locations that serve an area with five (5) or more acres disturbed at one time. The pretreatment basins will function as sediment control basins during construction. 15. The model indicates a HWL of 937.4' for WVR-P54.2. Based on the grading plan, design elevations of the proposed North Creek Greenway Trail adjacent to WVR-P54.2 located at the southwest comer of the basin are < 938'. Therefore, l' of freeboard has not been achieved. Please provide more detail or revise grading plan to reach 1' of freeboard. Trail grades have been modified to provide at least 1 foot of freeboard between trail and pond HWL's. 16. Current model rainfall distributions are based off SCS Type -II distribution. Please revise model to reflect MSE 3 distributions and provide model output based on new distribution. The model has been changed to reflect MSE 3 Distributions. 17. The proposed 24" submerged pipe between P54.1 and P54.2 is indicated as being perforated. Please explain the need for the perforations. The perforations in this pipe were discussed and agreed to in January, 2019 and depicted on the drainage submittal on April 10, 2019. 18. All publicly owned and maintained storm sewer pipe will be RCP, not HDPE as shown on the pond sections within the Drainage Exhibits package. The plans have been changed to show RCP for all publicly owned and maintained storm sewer pipe. The pipe between Pond WVR-P54.2 and WVR-P54.1 will continue to be proposed as HDPE to provide perforation. Thank you for the thorough review of the layout. Please contact me with any questions regarding the responses. Sincerely, KIMLEY-HORN AND ASSOCIATES, INC. Will Matzek, P.E., CPESC KH-nley>»Horn MEMORANDUM Date: February 26, 2020 To: Brandon Anderson, P.E. City of Apple Valley From: Will Matzek, P.E. — Kimley-Horn and Associates, Inc. Jacob Rojer, P.E. — Kimley-Horn and Associates, Inc. Subject: The Shoppes at Orchard Place, 1571h St. & Pilot Knob, Apple Valley, MN 45-Acre Development (Fischer Sand and Aggregate Site) — 157th Street & Main Access Traffic Control Memo Introduction Page 1 Development of a portion of the Fischer Sand and Aggregate Site (generally located west of CSAH 31 and south of CR 42 in Apple Valley, MN) is being considered. An Alternative Urban Areawide Review (AUAR) was originally performed in 2007 for the Fischer Sand and Aggregate Site to assist the local governments how development scenarios will affect to the environment of the surrounding community, including the surrounding roadway network. The AUAR document was subsequently updated and resubmitted in October 2016. Approximately 45 acres west of CSAH 31 between 155th Street and 157th Street is being considered as a mixed -use retail development. The development is proposing a side -street stop -controlled access for the main site access on 1571h Street. A 1571h Street study completed in June 2016 by Bolton & Menk, Inc. determined that the proposed development would require a traffic signal at the main site access on 157th Street. This study is included in Attachment C. The following memorandum will provide a summary of the proposed development, comparison of traffic volumes between the June 2016 157th Street study and the November 2019 study, and the operational analysis results at 1571h Street & Main Site Access. Proposed Development and Traffic Volumes The proposed 45-acre Shoppes at Orchard Place development is anticipated to include approximately 162,200 square feet of general retail, 47,200 square foot grocery store, 6,500 square foot car wash, and approximately 28,000 square feet of restaurant space. The development is anticipated to be completed in phases with the first phase open by 2020. Primary access to the development is planned to be along 155th Street W and 157th Street W. Along 157th Street W, a right -in driveway is proposed +/- 450 feet west of CSAH 31 and a full access driveway is proposed +/- 800 feet west of CSAH 31. Along 155th Street W there are 3 proposed accesses, a full access driveway is proposed +/- 660 feet west of CSAH 31, a right-in/right-out driveway access is proposed +/- 950 feet west of CSAH 31, and a full access driveway access +/- 1250 feet west of CSAH 31. The proposed conceptual site plan is included in Attachment A. It should be noted that the latest Ki I ey ' II- in Page t site plan depicts 217,300 square feet of development. To be conservative this analysis assumed 243,900 square feet of development which is what was previously assumed for the site. Using the 101h Edition of ITE's Trip Generation, the trip generation for the proposed development is shown in Table 1. TABLE 1: TRIP GENERATION SUMMARY ITE I Intensity / AM Peak Hour PM Peak Hour Land Use Description LUC Units Daily In Out Total In Out Total Shopping Center 820 162,200 SF 94 6,124 58 152 297 321 618 5,042 180 222 214 436 Supermarket 850 47,200 SF 108 72 High -Turnover (Sit -Down) 932 28,000 SF 3,142 153 125 278 170 104 274 Restaurant 6,500 SF 920 46 46 92 46 46 92 Automated Car Wash 948 TOTAL SITE GENERATED EXTERNAL TRIPS 15,228 401 301 702 735 685 1,420 TOTAL SITE GENERATED EXTERNAL TRIPS 15,230 400 300 700 735 685 1,420 Rounded Total Internal Capture 1,755 80 80 1 160 140 140 280 TOTAL SITE GENERATED EXTERNAL TRIPS 13,475 1 320 220 1 540 595 545 1,140 Total Pass -By Reduction (10% of Adjacent -2,400 -105 -105 -210 -140 -140 -280 Street) TOTAL NET NEW PROJECT GENERATED TRIPS 11,075 215 1 115 330 455 405 860 For Horizon Year (2030) conditions, traffic volumes were developed based on background growth of 1.0% from Year 2020 to Year 2030, site traffic generated by the Shoppes at Orchard Place, and additional AUAR development. By Year 2030, it was assumed that all of the AUAR parcels would be developed. Since the Shoppes at Orchard Place represent 20% of the AUAR buildout, 80% of traffic shown in the AUAR volume figures for the 157th Street and 155th Street intersections with CSAH 31 were added to the background growth. It should be noted that it was assumed that by Year 2030, all roadways within the AUAR area would be built. This includes 1551h Street between the west edge of the development and Flagstaff Avenue, and Johnny Cake Ridge Road between 157th Street and CSAH 42. Comparison of Traffic Volumes Figure 1 below shows the comparison of the projected PM peak hour 1571h Street build out traffic volumes from the June 2016 Study and the updated 2019 projected PM peak hour build out traffic volumes based on the proposed site plan and the updated AUAR. There is a significant difference in traffic volumes entering and exiting the site on 157th Street. The June 2016 study shows 464 entering trips and 610 exiting trips for a total of 1,074 trips during the PM peak hour. The updated 2019 study shows 275 entering trips and 235 exiting trips for a total of 510 trips during the PM peak hour. The discrepancy is likely due to the fact that the June 2016 study was completed before the AUAR update in October 2016. In the June 2016 study, the volumes were Ki ey>Morn Page 3 based on the original 2007 AUAR density which projected over twice as many PM peak hour trips for the AUAR site than the October 2016 AUAR Update. FIGURE 1: 157" STREET VOLUME COMPARISON -----r..---- -- _ ---__ _ �xsthst——--L_—� LEGEND Q Proposed Site Location XX November 2019 Study PM Peak Hour Traffic ' (XX) June 2016 Study PM Peak Hour Traffic` — — 2030 AUAR Roadway Improvements I I i v , rIT,wl'� ., I )r 7+— +-50(100) 370 (284) '� 160 (1B8) F420(381) 575 (656) —+ a00 (183) M d. W. w a4 6. Y a .4 a 1,60th Street W r Operational Analysis N An analysis was performed to determine what operational impacts would be introduced to 157th Street with the proposed development. The analysis focused on the intersection of 157th Street & Main Site Access. Horizon Year (2030) conditions were reviewed for the intersection as side street stop controlled, where the Main Site Access is stop controlled. Since the site traffic is anticipated to be much higher during the PM peak hour, the operational analysis was performed for the PM only. Horizon Year (2030) Capacity Analysis A capacity analysis was performed for Horizon Year (2030) conditions using Synchro/SimTraffic to evaluate intersection delay and level of service, as well as queuing, at the study intersections. The SimTraffic results are based on the peak hour with a peak hour factor (PHF) of 0.92 and averaged over 'Ki I Il`y))) Horn 1 Page 5 model runs. It was assumed that the geometry on 1571h Street would remain the same as the existing condition and that the main site access would provided dedicated left and right turn lanes. Table 2 provides a summary of the level of service (LOS) during the PM peak hour for the Horizon Year (2030) scenarios. As shown in the analysis, the 157th Street & Main Site Access is anticipated to operate acceptably with side street stop control. The SimTraffic report is provided in Attachment B. TABLE 2: HORIZON YEAR (2030) DELAY & LOS SUMMARY Intersection Control Approach Delay LOS JSec/veil) EB 1.9 A WB 0.6 A 1571h Street Side Street NB & Main Site Stop Access Controlled SB 13.1 B Overall 13.1 B In addition to the reviewing intersection delay and LOS, queueing information was also reviewed, With the full build out of the AUAR parcels and background growth, the 95th percentile southbound queues at 157th Street & Main Site Access are approximately 120 feet in the analysis scenarios. Based on the proposed site plan there is enough stacking to accommodate the Horizon Year (2030) 95th percentile queues. Based on the updated AUAR traffic projections and the proposed land uses for the 45-acre Shoppes at Orchard Place development there was a substantial decrease in projected traffic between the June 2016 study and the proposed site plan. The June 2016 1571h Street Study projected 1,076 trips in the PM peak hour at the accesses along 1571h Street and the updated 2019 projections based of the current site plan is 510 trips in the PM peak hour. 1571h Street & Main Site Access is expected to operate at LOS B as a side street stop -controlled intersection in the Horizon Year (2030) PM peak hour. In addition, the southbound stacking distance provided on site is sufficient to accommodate the 95th percentile queues. It is not recommended for the Main Site Access to be signal controlled as determined in the June 2016 study, instead, the intersection should be side street stop controlled upon completion of the Shoppes at Orchard Place. Kimley>»Horn ATTACHMENT A: SITE PLAN ,,,nBB �.,wdd3AwAA��= UJ0H(<<Aajw.rA I NW 'A311VA 31ddV N`dld 311S GVON eONN iOlid ONV1S3M133NiSH1LSL - w 33Vld 4NVHONO S Wiio HISN00 HOJ lON — ,2JVNIINITIHd S Na3 �o ma PILOT KNOB ROAD wd5l:l - OZOZ 'BI Newpa3 B" ue!d -I'S 00M'611-0-aH'lid al!S IIIIAO BZIO-OZOZ1sll4!4K310VOk-bl-O EIA-1FA_elditMAlM30l OM1IN Kimley»>Horn ATTACHMENT B: SIMTRAFFIC REPORT SimTraffic Performance Report Year 2030 Without RI PM Peak Hour 1: CSAH 31 & 155th Street Performance by approach Approach EB VVs N8 SB All Denied DelNeh (s) 0.0 0.3 0.0 1.1 0.6 Total DelNeh (s) 46.3 26.0 28.8 34.1 33.7 2: CSAH 31 & 157th Street Performance by approach Approach EB VJB NB SB All Denied DelNeh (s) 0.0 0.6 1.1 0.0 0.4 Total DeWeh (s) 43.9 40.1 31.4 27.8 32.5 3: Driveway 1 & 155th Street Performance by approach Approach EB VV8 NE All Denied DelNeh (s) 0.2 0.0 0.1 0.1 Total DelNeh (s) 0.4 0.5 3.8 0.6 4: Driveway 2 & 155th Street Performance by approach Approach EB VVB NB All Denied DelNeh (s) 0.0 0.0 0.3 0.1 Total DelNeh (s) 0.7 4.2 14.3 5.3 5: 157th Street & Driveway 3 Performance by approach Approach E8 VVB SE All Denied DelNeh (s) 0.7 0.0 0.2 0.3 Total DelNeh (s) 1.9 0.6 13.1 3.8 6: 157th Street & Driveway 4 Performance by approach Approach EB W8 All Denied DelNeh (s) 0.0 0.0 0.0 Total DelNeh (s) 0.5 1.4 1.0 Total Network Performance Denied DelNeh (s) 0.8 Total DelNeh (s) 56.6 The Shoppes at Orchard Place November 2019 Kimley-Horn Page 1 Queuing and Blocking Report Year 2030 Without RI PM Peak Hour Intersection: 1: CSAH 31 & 155th Street Movernent EB EB EB VV8 WB WB NB NB NB NB SB SB Directions Served L T TR L T R L T T R L T Maximum Queue (ft) 316 295 289 70 101 184 276 323 321 46 430 406 Average Queue (ft) 199 84 139 24 36 78 118 161 168 16 256 273 95th Queue (ft) 326 264 232 53 78 141 221 271 277 40 376 377 Link Distance (ft) 524 524 2160 2160 600 600 2087 Upstream Blk Time (%) 0 Queuing Penalty (veh) 0 Storage Bay Dist (ft) 300 200 350 350 450 Storage Blk Time (%) 5 0 0 0 0 0 Queuing Penalty (veh) 3 0 0 0 3 0 Intersection: 1: CSAH 31 & 155th Street Movement SB SB Directions Served T R Maximum Queue (ft) 428 169 Average Queue (ft) 276 49 95th Queue (ft) 386 136 Link Distance (ft) 2087 Upstream Blk Time (%) Queuing Penalty (veh) Storage Bay Dist (ft) 350 Storage Blk Time (%) 2 Queuing Penalty (veh) 3 The Shoppes at Orchard Place November 2019 Kimley-Horn Page 2 Queuing and Blocking Report PM Peak Hour Year 2030 Without RI Intersection: 2: CSAH 31 & 157th Street Movement EB EB EB WB WB WB 1NB NB NB N6 NB SB Directions Served L T R L L T R L T T R L Maximum Queue (ft) 207 183 280 166 179 90 106 439 328 281 88 280 Average Queue (ft) 104 88 146 84 102 35 38 274 184 171 39 125 95th Queue (ft) 174 160 255 145 160 75 78 415 282 259 69 214 Link Distance (ft) 412 412 2048 2048 2100 2100 Upstream Blk Time (%) Queuing Penalty (veh) Storage Bay Dist (ft) 200 250 Storage Blk Time (%) 1 1 Queuing Penalty (veh) 1 1 Intersection: 2: CSAH 31 & 157th Street Movement SB SB SB B7 200 500 350 350 0 0 0 0 0 0 0 0 Directions Served T T R T Maximum Queue (ft) 367 379 153 110 Average Queue (ft) 219 219 40 4 95th Queue (ft) 349 362 106 80 Link Distance (ft) 615 615 600 Upstream Blk Time (%) Queuing Penalty (veh) Storage Bay Dist (ft) 350 Storage Blk Time (%) 0 1 Queuing Penalty (veh) 1 2 Intersection: 3: Driveway 1 & 155th Street Movement NB Directions Served R Maximum Queue (ft) 56 Average Queue (ft) 21 95th Queue (ft) 48 Link Distance (ft) 306 Upstream Blk Time (%) Queuing Penalty (veh) Storage Bay Dist (ft) Storage Blk Time (%) Queuing Penalty (veh) The Shoppes at Orchard Place November 2019 Kimley-Horn Page 3 Queuing and Blocking Report PM Peak Hour Year 2030 Without RI Intersection: 4: Driveway 2 & 155th Street Movement PB EB WB NB Directions Served T TR L LR Maximum Queue (ft) 6 29 128 214 Average Queue (ft) 0 2 51 86 95th Queue (ft) 5 13 97 167 Link Distance (ft) 647 647 501 Upstream Blk Time (%) Queuing Penalty (veh) Storage Bay Dist (ft) 150 Storage Blk Time (%) 0 Queuing Penalty (veh) 0 Intersection: 5: 157th Street & Driveway 3 Movement EB WB WB SB SB Directions Served L T R L R Maximum Queue (ft) 56 10 9 157 57 Average Queue (ft) 18 0 0 58 23 95th Queue (ft) 49 8 5 118 41 Link Distance (ft) 346 346 348 348 Upstream Blk Time (%) Queuing Penalty (veh) Storage Bay Dist (ft) 200 Storage Blk Time (%) Queuing Penalty (veh) Intersection: 6: 157th Street & Driveway 4 Movement WB Directions Served T Maximum Queue (ft) 4 Average Queue (ft) 0 95th Queue (ft) 3 Link Distance (ft) 412 Upstream Blk Time (%) Queuing Penalty (veh) Storage Bay Dist (ft) Storage Blk Time (%) Queuing Penalty (veh) Network Summary Network wide Queuing Penalty:14 The Shoppes at Orchard Place November 2019 Kimley-Horn Page 4 Kimley>»Horn ATTACH ME NT C: JUNE 2015 157T" STREET MEMO BQ LT"C:)N 8o- N4 F== ry K • Consulting Engineers & Surveyors 12224 Nlcollet Avenue • Burnsville, MN 55337 Phone (952) 890-0509 • Fax (952) 890-8065 www.bolton-menk.com MEMORANDUM Date: June 10, 2016 To: City of Apple Valley, MN From:, Bryan T. Nemeth, P.E., PTOE Michael Boex, P.E. Subject: 157" and English Alternatives I r•.1 C® I hereby certify that this report was prepared by me or under my direct supervision and that I am a duly Registered Professional Engineer under the laws of the State of Minnesota. .� 43354 June 10, 2016 Bryan T. N'ntc[lt, P.E., PTOE Reg. No. ❑atc Recommendation The north access into the commercial/retail development area off of 157' Street and English Avenue should be realigned 880' west of Pilot Knob Road. This is Option 2 as provided below. This option and access location provides for increased safety and reduces traffic congestion that could impact Pilot Knob Road. • Stopping sight distance is provided prior to eastbound backups. • The number of vehicle conflict points on 157t' Street are reduced, increasing safety. • Traffic accessing 157" Street from the north does not have the potential to block the westbound through and southbound queues out of the retail/commercial site are the shortest at 300 feet. • Motorists have time to make lane choices west of Pilot Knob Road. Background The intersection of 1571" Street and English Avenue is located approximately 500 feet west of Pilot Knob Road (CSAH 31). The actual stacking distance from vehicles available is approximately 450 feet. As development increases west of Pilot Knob Road, the traffic volumes will increase on 157' Street. Peak hour traffic backups from Pilot Knob Road are forecasted to extend past English Street at full build out. HAAPVA\_General\2016\157th and English Options\2016-06-10_157thEnglish Options.docx DESIGNING FOR A BETTER TOMORROW Bolton & Menk is an equal opportunity employer Proposed Commercial Development Trip Generation estimates based on the size of the development was completed. The total trip estimate into and out of the commercial development north of 157" Street and west of Pilot knob Road includes: • 21,000 new trips entering and exiting the area per day. • 35,000 total trips entering and exiting the area per day. Includes trips that are already on the surrounding roadways (i.e. Pilot Knob, Flagstaff, Johnny Cake Ridge Road, CSAH 42, CSAH 46) This includes the trips from 40 acres of commercial/retail development on the northwest corner of Pilot Knob Road and 157t' Street. The traffic into and out of the area is anticipated to use 157t' Street and 155t' Street in the future. The analysis provided below includes both of these access points. Surrounding Residential Development Residential development is planned west of the commercial development. This will add more trips to 157" Street, beyond the commercial development. This results in a future daily traffic volume forecast of Traffic Forecast and Distribution There are anticipated to be two access locations to the commercial/retail area: 155t' Street and 157t' Street. Approximately 45% of exiting traffic in the PM peak hour is estimated to use 1571" Street to access Pilot Knob Road as many of the destinations are homes south and east of the site. With this traffic there is forecasted to be 21,000 vehicles per day on 157`h Street west of Pilot Knob Road. Transit The Minnesota Valley Transit Authority (MVTA) transit station (157th Street Station) will be impacted by the intersection configuration. Backups of traffic through the English Street intersection will impact that ability for bus traffic to get into and out of the station. �i 0 i5 �+ 1501h 5t ll s_> Cub Foods ■ WOO `s 153rd Routes: 479 55th St CC - th 157th St Routes 420,440 442,475 477, 160th St 48i. Red Line 160th SE !l o The station is on the east end of 157th Street, just west of Pilot Knob Road. There are currently two routes, 477 and 479, that connect to the station. HAAPVA\_General\2016\157th and English Options\2016-06-10_157thEnglish Options.docx DESIGNING FOR A BETTER TOMORROW Bolton & Menk is an equal opportunity employer. F 14Dih St -R 149th St 4 $� 144th St 4t3 15MhSt a � 150thSt ra!k L-0at r.477, 479�157th S1.td' 157thSt t 157thSt 160th 5t St..... LL Park Access It is anticipated that both routes 477 and 479 will use the new connection of 157th Street instead of CSAH 46/160th Street to make the connection between the 157th Street Station and Flagstaff Avenue. 157' Street and English Avenue is the primary access to Quarry Point Park. Traffic from the north will impact the inbound and outbound park traffic. Quarry Point Park is used extensively from April to October. The parking lot off of English Avenue is full all summer long. The primary access into and out of the area is English Avenue at 157" Street. Both the park and retail commercial development have high use on Saturdays and the PM peak hour. The second access to the park, located between CSAH 46 and 157' Street will be closed once the Pilot Knob Road/CSAH 46 intersection is upgraded in accordance with the approved corridor study putting more pressure on English Avenue at 1571h Street. Options Four options for the roadway access in the area along 157' Street are considered. All options feature signalization of 157" Street at the primary access to the proposed development due to the high volume of generated trips. Traffic operations analyses were performed for all considered options using Synchro/SimTraffic analysis software. This analysis generated intersection delay and queue distances and are shown with each corresponding option. Analysis also includes a traffic signal at the primary access point to the retail/commercial property north of 157t' Street. The signal is needed at full build of the area to allow vehicles to access 157t' Street from the development. With no signal, traffic backups extend thousands of feet onto the site. Option I The intersection of English and 157t' Street is maintained as the primary access intersection for the area. Minimal change from existing configuration. • South leg access is unchanged. • North leg to intersection is added. HAAPVA\_General\2016\157th and English Options\2016-06-10_157thEnglish Options.docx DESIGNING FOR A BETTER TOMORROW Bolton & Menk is an equal opportunity employer. • Access is 500' from Pilot Knob Road. o Backups extend through English Street o Stopping Sight Distance not achieved prior to backup • Eastbound traffic backups from Pilot Knob can affect the anticipated heavy southbound left movement. o A backup on the southbound left turn movement may cause issues for all westbound traffic, potentially causing westbound backups to Pilot Knob Road. • North leg traffic competes directly with the south leg traffic at a location that is blocked by backups. • Westbound lane decisions must be made immediately west of Pilot Knob Road. • Traffic analysis results as shown in Table 1 indicates that Option 1 provides for acceptable service levels. o Traffic backups are not considered to be acceptable with the access location. The stopping sight distance and maximum queue are in conflict. This indicates that there is not adequate stopping sight distance prior to the maximum queue (backup) for eastbound. Table 1: Build Option 1 Limiting Max Approach Queue Intersection Maximum V/C Intersection a Movement 4 Average Max Queue De fayr Delay -Los 3 Ratio Direction Queue (ft) (ft) Pilot Knob Rd at 157th St W 28 C 101 F WBL 0.9 EBR 250 450 Sienal 157th St W at English Ave 19 C 62 H NBT 0.71 WBTR 105 225 Signal - IM; L in mxorli Y per vehicle 2-Maximum delay and LDS on any approach and/or movement 3 - Limiting Movement is the highest delay movement. 4-limiting Movement Volume -to -Capacity Ratio • A sensitivity analysis was also completed with an event at Quarry Point Park. This includes an event in which the main parking lot for the park is full and is accessed during the PM peak hour. Overall, an event has little impact to overall operations and queues are similar to the existing condition except for the southbound left out of the commercial/retail site at English Avenue. • The maximum backup for the southbound left out of the retail/commercial site increases from 400 feet during a typical weekday to 450 feet under a special event. The increase is due to the increased east -west traffic entering the park using more of the signal cycle. + This option provides for 32 vehicle conflict points on the analyzed roadway network west of Pilot Knob Road. Option 2 The intersection of English and 157' Street is maintained for the south leg. A new access for the north side of 157th Street is located 880 feet west of Pilot Knob Road. + Minimal change from existing configuration. • South leg access is unchanged. H:APVA\_General\2016\157th and English Options\2016-06-10_157thEnglish Options.docx DESIGNING FOR A BETTER TOMORROW Bolton & Menk is an equal opportunity employer. • Access is 880' from Pilot Knob Road. o Backups extend through English Street ■ An eastbound backup from Pilot Knob Road would only affect the westbound left which is a low volume movement much of the time. o Stopping Sight Distance achieved prior to backup but is within the functional area. This is deemed to be acceptable but not preferable. • North leg includes a right -in only at English Avenue. o A right turn lane pocket should be considered but may not be necessary since there is only one lane of traffic feeding the westbound movement from Pilot Knob Road (one northbound left, one westbound thru, and one southbound right). o Provides an access close to Pilot Knob Road for entering. • Traffic analysis results as shown in Table 2 indicates that Option 2 provides for acceptable service levels. o Traffic backups are considered to be acceptable with the access locations. Table 2: Build Option 2 Limiting Max Approach Queue Intersection Maximum V/C Average Max Queue Intersection 3 Z Movement 4 Delay Delay-LOS 3 Ratio Direction Queue ft (1 ft 11 Pilot Knob Rd at 157th St W Signal 27 C 80 E E13L 0.9 EBR 265 415 157th St W at English Ave r English Sloe Conlrol, Access Right -In Only 4 A 14 B WBL 0.28 WBL 5 30 157th St W at Development Access I 1 1 Signal 14 B 21 C WBT 0.77 WBT 115 235 l - Delay in seconds per vehicle 2 -Maximum delay and LOS on any approach and/or movement 3-Limiting Movement is the highest delay movement. 4-Limiting Movement Volume -to -Capacity Ratio • A sensitivity analysis was also completed with an event at Quarry Point Park. This includes an event in which the main parking lot for the park is full and is accessed during the PM peak hour. Overall, an event has little impact to overall operations and queues are similar to the existing condition. This includes the southbound left out of the commercial/retail site at English Avenue. • The maximum backup for the southbound left out of the retail/commercial site is 300 feet under both scenarios. • This option provides for the fewest vehicle conflicts on the analyzed roadway network west of Pilot Knob Road. o Total conflict points: 19 Option 3 English Avenue is relocated 450 feet west and the north leg is added at that location; access to the transit station remains at existing location. • Change from existing configuration. • Realignment requires relocation/removal of ballfield and parking lot. HAAPVA\_GeneraA2016\157th and English Options\2016-06-10_157thEnglish Options.docx DESIGNING FOR A BETTER TOMORROW Bolton & Menk is an equal opportunity employer. • Access to Quarry Hill Park is shifted west via English Avenue. • North leg to intersection is added. • Access is 950' from Pilot Knob Road. o Backups extend short of transit station access o Stopping Sight Distance achieved prior to backup + Traffic analysis results as shown in Table 3 indicates that Option 3 provides for acceptable service levels. o Traffic backups are considered to be acceptable with the access locations. Table 3: Build Option 3 Limiting Max Approach Queue Intersection Maximum V/C Intersection 1 a Movement a Average Max Queue Delay Delay-LOS ; Ratio Direction Queue ft ft Pilot Knob Rd at 157th St W 26 C 84 F WBL 0.9 EBR 230 385 Signal 157th St W at Bus Station 1 A 10 A WBL 0.28 WBL 5 20 Minor Road Slop Control 157th St W at Development Access/English Ave 17 B 21 C SBL 0.82 WBTR 135 250 Signal I - belay in seconds per vehicle 2-Ma)dmumdelay and LOS on any approach and/or movement 3 -Limiting Movement is the highest delay movement. 4-Limiting Movement Volume -to -Capacity Ratio • A sensitivity analysis was also completed with an event at Quarry Point Park. This includes an event in which the main parking lot for the park is full and is accessed during the PM peak hour. Overall, an event has little impact to overall operations and queues are similar to the existing condition. This includes the southbound left out of the commercial/retail site at English Avenue. • The maximum backup for the southbound left out of the retail/commercial site is 350 feet under both scenarios. • This option provides for the fewest vehicle conflicts at the current English Street intersection but the most overall. + This option provides for 41 vehicle conflict points on the analyzed roadway network west of Pilot Knob Road. Option 4 English Avenue is relocated 100 feet west and the north leg is added at that location. + Change from existing configuration. • Realignment is shown at a location that preserves the ballfield. • South leg access is shifted west. • North leg to intersection is added. • Access is 600' from Pilot Knob Road. o Backups extend into English Street HAAPVA\_General\2016\157th and English Options\2016-06-10_157thEnglish Options.docx DESIGNING FOR A BETTER TOMORROW Bolton & Menk is an equal opportunity employer. ME o Stopping Sight Distance not achieved prior to backup Eastbound traffic backups from Pilot Knob can affect the anticipated heavy southbound left movement. o A backup on the southbound left turn movement may cause issues for all westbound traffic, potentially causing westbound backups to Pilot Knob Road. • Westbound lane decisions must be made immediately west of Pilot Knob Road. • Traffic analysis results as shown in Table 4 indicates that Option 4 provides for acceptable service levels. o Traffic backups are not considered to be acceptable with the access location. The stopping sight distance and maximum queue are in conflict. This indicates that there is not adequate stopping sight distance prior to the maximum queue (backup) for eastbound. Table 4: Build Option 4 Limiting Max Approach Queue Intersection Maximum V/C Intersection 1 2 Movement 4 Average Max Queue Delay Delay-LOS z Ratio Direction Queue (ft) (ft) Pilot Knob Rd at 157th St W Si.enal 27 C 77 F3 W BL 09 EBR 260 420 157th St W at English Ave Signal 30 D 43 D WBT 0.82 WBTR 200 380 I - thlal in seconos per vehicle 2- Mapmum delay and LOS on any approach and/or movement 3-limiting Movement is the highest delay movement. 4-Limiting Movement Volume -to -Capacity Ratio • A sensitivity analysis was also completed with an event at Quarry Point Park. This includes an event in which the main parking lot for the park is full and is accessed during the PM peak hour. Overall, an event has little impact to overall operations and queues are similar to the existing condition. This includes the southbound left out of the commercial/retail site at English Avenue. • The maximum backup for the southbound left out of the retail/commercial site is 450 feet under both scenarios. • This option provides for 32 vehicle conflict points on the analyzed roadway network west of Pilot Knob Road. Conclusions • All options will require a traffic signal at the driveway access for the retail/commercial property north of 157th Street. • All options provide for acceptable service levels. • The backups (queues) that are anticipated to occur in the area due to the development result in conflicts with the stopping sight distance under options 1 and 4. • Options 2 and 3 provide for adequate spacing between Pilot Knob Road and the primary retail/commercial access to the north where the stopping sight distance and backup queues are not in conflict. • Option 2 provides for the fewest conflict points, resulting in the highest safety potential. HAAPVA\_General\2016\l57th and English Options\2016-06-10_157LhEnglish Options.docx DESIGNING FOR A BETTER TOMORROW Bolton & Menk is an equal opportunity employer. r- IIC HVS3) aVOH GOMM 1011d i ----- -_ --- _--___T__--_--_------__-_ W W V V z z Q F H N N Z LLI W W Q Lu W N Q J Z O d v o z a in U l -P'I-4s IDII P— LS b — _.-------'— ss i r� M Ntl63) OtlON SONN I011d ji --------------------------------- Ile W W V 0 Z Z Q 4 H N o Z W a Wy Q J Z O 4 v K Q U) U. iwi W H z > Q M W xz Ldz v)o oM or � a o z O W W J H abz J i¢ W > 3 z Lj W H C) J ins �a a xa '^a ■ .bp4- sjjbll puo IS Vld os;LoaS `J IUC/(JI/y iy+. 4 t �i"' -s✓ M HV93) avoa aoNM lolls I I N LU W J I 0 z (~A U. yj C1 o � 1� �y I _ n►�rna na�n�aY _ ! - t, I G 1 ®e V) W r > z Q V W m xz Ldz O o Jr cr coa- (r zo „W W J J d1z 3¢ W r > 3 z W W rLD WJ o cra J d 2 Q N Q ^ W ^ `¢ r � c j -b-us P,3 1— !S 41LVld b5'S[S 91U/01/9 19!'1wa. 6}�}IU•�alo�-1PU t 040 0060 *too* •0*0 ••a CITY OF Apple Valley TO: Tom Lovelace, Planner FROM: Brandon S. Anderson, PE, City Engineer DATE: March 13, 2020 SUBJECT: Orchard Place Preliminary Plat. MEMO Public Works The following are comments regarding the Orchard Place Preliminary Plan Review dated March 4, 2020. Please include these items as conditions to approval. General 1. Provide a narrative and site plan showing how the expansion will be constructed and any impacts prior to building permit authorization. The narrative and plan shall include the following: a. Material storage and staging i. All material storage to be onsite and indicated on plan. b. Haul routes to and from the site. c. Contractor and subcontractor parking locations i. Onsite trade parking should be provided. 2. All work and infrastructure within public easements or right of way shall be to City standards. A public improvement project will be required for sanitary sewer, water main and storm water improvements as well as extension of 1551h Street and intersection improvements at 155`h and Pilot Knob. 3. A design agreement will be required for the design of the public utilities by City Staff. 4. Funding of all internal private streets and base utilities is expected to be the responsibility of the developer. Funding for collector streets and trunk utilities will be included as part of the development agreement in accordance with an approved Feasibility Study. 5. Access Restriction Easement will be required along Pilot Knob Road, 155th and 1571h Streets as part of the Development Agreement in accordance with access spacing guidelines set by City Engineer and Dakota County. 6. Drainage and utility easements encompassing the public Storm Sewer within the Orchard Place commercial development is required for the proposed storm sewer draining multiple properties. 7. A Trail, Drainage & Utility easements shall be provided for the proposed trail located outside Outlot A or amend property line to include within Outlot A. 8. The area that includes the storm water ponds is shown as Outlot A and shall be dedicated to the City. All of Outlot A shall be designated as a permanent drainage and utility easement. The eastern lot line of Outlot A shall be modified to fully encompass the storm water basin. 9. The parking lot for Building D cannot encroach into Outlot A. Permits 10. A Minnesota Pollution Control Agency (MPCA) National Pollutant Discharge Elimination System (NPDES) permit is required for any project that disturbs more than one acre. Provide a copy of the executed permit prior to construction. 11. A City of Apple Valley Natural Resource Management Permit (NRMP) will be required prior to any land disturbing activity. 12. Provide a copy of any other required permits. 13. The City of Apple Valley will procure a sanitary sewer extension permit from the MPCA and an approval from the Minnesota Department of Health for public water main as part of public improvement project associated with public sanitary sewer and water main extension. 14. A copy of the executed Encroachment Agreement with Magellan Pipeline for work occurring within easement area as indicated on plans prior will need to be obtained prior to any construction activity. Site/Traffic 1. See supplemental comments regarding Traffic Impacts and study findings. 2. Additional drawing showing Auto turn turning movement to verify proposed temporary cul-de-sac sizing. Additional Permanent Barricades in accordance with STR-13 shall be included as part of final construction plans. 3. As part of Phase 1, 155th Street will be extended from Pilot Knob Road to slightly beyond the western access of the Orchard Place commercial development. The full street corridor with landscaped medians, left turn lanes, and walkways will be constructed. 4. A street stub will also be provided for the future extension of Street A to the north of 1551h Street. There are no traffic impacts, adverse or beneficial, to future Street A to the North being constructed as part of future development. 5. Turn lanes along Pilot Knob Road for 155th Street and 157th Street will also be modified and lengthened as part of the Phase 1 improvements due to longer queue lengths. 6. A traffic signal is anticipated at 1551h and Pilot Knob as part of Phase 1 with the expected traffic as part of Phase 1. 7. Access locations to 155th Street will be determined during the final design of 155th Street West. 8. Additional signage and pavement markings will be required along the right -in access road near Lot 1 & 2 parking lot access to prevent wrong way traffic. 9. Final site plan shall be reviewed with the construction plans and approved by City Engineer. Storin ",ater Manai_entent 10. See supplemental comments regarding regional storm water drainage. a. Storm water management for the WVR-P54 watershed was modeled by the developer. The watershed of WVR-P54 includes the Orchard Place commercial development and the medium density residential development to the west. Preliminary grading and storm sewer pipe configurations have also been determined by the developer. 11. Storm water management for the WVR-P53 watershed for the development of Phase 1 will include the portion of the 155th Street corridor. The total active storm water storage volume needed for the management of Phase 1 is approximately 2.5 AC -FT. This volume will be stored in a basin north of 155th Street between the two allowed access points. During fixture phases, as additional active storm water storage is required, this basin will be converted into a pretreatment basin and outlet into the main storm water pond prior to discharging to WVR-P54. Grading/Drainage 12. Grading is shown in the Pilot Knob ROW near Building Q — standard boulevard grades not exceeding 5% shall be maintained in the boulevard. 13. Pond slope grading is shown into the rear parking lots and truck turnarounds of buildings C,D&E. Future private retaining walls will be required along the west side of Outlot B. 14. Final grading, drainage, and erosion control plan shall be reviewed with the construction plans at building permit/site plan authorization and approved by City Engineer. Sanitary Sewer 15. New 10" — 12" PVC sanitary sewer with precast concrete manholes will be extended through the Orchard Place commercial development and provide a stub for fixture connection north of 155th Street. This sanitary sewer will connect to the existing 12" PVC sanitary sewer stub at the south end of the property near 157th Street and English Avenue. The sanitary sewer will be sized in conformance with the City's 2030 Land Use map to provide service to the commercial properties within the 35.8 acre Orchard Place commercial development and approximately 78.6 acres of future mixed use business development north of 155th Street as shown on Figure 7. A portion of this sanitary sewer will be installed within a steel casing by means of trenchless pipe installation and open cut trench for the crossing of the existing Magellan gas pipeline and the proposed 155th Street corridor. 16. New PVC services will be stubbed out from each manhole along this sanitary sewer to provide service to the future buildings within Orchard Place. The size of the required service pipes will be provided by the developer during final design. 17. Final sanitary sewer design and construction plans shall be completed by the City of Apple Valley. Water main 18. New 12" ductile iron pipe (DIP) water main will be extended through the Orchard Place commercial development up to 155th Street. This water main will connect to the existing 12" DIP water main stub at the south end of the property near 157th Street and English Avenue. This 12" water main is not part of the City's water distribution system and is being constructed only to provide service to the Orchard Place commercial development. 19. The 12" DIP water main will have DIP water service stubs for the future commercial buildings. The size of the required service pipes will be provided by the developer during final design. 20. New 16" DIP is proposed on 155th Street between Street A and the limits of Phase 1. A stub for future connection will be provided at this location. 21. Although not shown on the Water Distribution System map, a 16" DIP water main along 155th Street between future Street A to the north and the existing 16" DIP water main within the east boulevard of Pilot Knob Road will also be constructed due to the proposed phasing. This additional connection will provide the following benefits to the proposed Phase 1 development: a. Improve water quality by allowing for better circulation within the water main system during the Phase 1 development b. Reduce service interruptions due to water main shutdowns by providing another connection to the existing water main c. This proposed water main will utilize the existing 24" steel casing underneath Pilot Knob Road as described above to mitigate traffic impacts to Pilot Knob Road. d. When future trunk water main in the vicinity of this project is extended and looped per the City's Water Distribution System map, this 16" water main can remain in place to serve as a redundant trunk water main or be removed/abandoned in -place to reduce the maintenance demand. 22. Final public water main design and construction plans shall be done by the City of Apple Valley. 23. Proposed hydrant locations will be evaluated during final design for coverage and water main maintenance. Hydrant coverage map will be required to be submitted prior to building permit/site plan authorization. Storm Sewer 24. Final storm sewer design shall be reviewed with the construction plans and approved by City Engineer. 25. The proposed storm sewer trunk lines serving multiple properties (Lots 1, 2 & 3 and Outlot B & C) shall be public infrastructure and include additional drainage and utility easements on the preliminary plat. MBOLTON & MENK Real People. Real Solutions. MEMORANDUM Date: March 6, 2020 To: City of Apple Valley, MN From: Bryan T. Nemeth, P.E. PTOE Subject: Traffic Review The Shoppes at Orchard Place 12224 Nicollet Avenue Burnsville, MN 55337-1649 Ph: (952) 890-0509 Fax: (952) 890-8065 Bolton-Menk.com This review is for the 157t" Street & Main Access Traffic Control Memo completed by Kimley Horn dated February 26, 2020. The previous traffic signal warrant analysis was based on the full build impacts from the AUAR. Previous reviews for the Shoppes at Orchard Place were thought to be interim build out phases as the number of trips were much lower than the AUAR trips. Based on this latest analysis it is apparent that the site is estimated to have a reduced number of trips at full build than the AUAR based on less dense and different uses. Changes since the AUAR are considered to be reasonable as site plans have been further refined and developed since 2016. This includes the parking site plan that was included with the February 26' memo and another site plan received on March 5, 2020. As previously mentioned, analysis completed by Bolton & Menk for the Orchard Place Development and justification for a signal was based on the traffic volumes identified in the AUAR 2016 update. This site was assumed to include all of the discount superstore traffic and a percentage of the General Office and Shopping Center traffic identified in the AUAR 2016 update for a total of nearly 500,000 square feet of development. The current site plan indicates approximately 260,000 square feet of development depending on the size of the future pad, an approximate 50% reduction in development (not necessarily trips) from the AUAR analysis. Th most up-to-date site plan should be used for the estimation of trips and consequently an updated traffic and warrant analysis. Of note, the trip generation summary used in the analysis does not appear to accurately represent the current development site plan. Based on the memorandum, the site includes approximately 162,200 square feet of general retail, 47,200 square feet of grocery store, 6,500 square feet of car wash, and 28,000 square feet of restaurant space. Based on the site plans, the trip generation estimates are missing approximately 13,800 square feet of development. Additionally, with a more refined site plan, the uses should be better defined to get a more accurate picture of the trips anticipated to be entering and exiting the site, and there needs to be land uses and trip generation that take into consideration for uses with drive-thru lanes. Drive-thru lanes can drastically increase the number of trips in an area as consistent with rates in the ITE Trip Generation Manual. Review of the March 5th site plan and general assumptions for building use based on the memo and the parking site plan provided information, the site is estimated to generate 17,855 daily trips and 1,293 PM trips. This is compared to the 11,075 daily trips and 860 PM trips provided in the memo. Both results assume the same internal capture and pass -by reduction trips since these were provided. Based on our understanding of the site plan, the following Table 1 details an updated trip generation for the Orchard Place Development. Table 2 details the building code associated with the current site plan and its \\Metrone4\h\APVA\N1411BB7B\2_Preliminary\C_Reports\KH Memo Review Response\Orchard Place Memo 2020-03-06.docx Bolton & Menk is an enual 0000rlunilvenn Name: The Shoppes at Orchard Place Traffic Review Date: March 6, 2020 Page: 2 expected use. For example, some of the larger buildings include both a fast food restaurant with drive-thru and mixed with other retail, similar to what is in place east of Pilot Knob Road in the same area (Costa Vida with AT&T and Apex Chiropractic). It was assumed that sites 1, N, and P are split with fast food with drive-thru and 2 other shopping center uses. Seats for restaurants were provided in the parking plan provided with the study. Additionally, the trips for the four large building sites should be calculated under Free Standing Discount Store since they would typically have one site of sale for each building, versus shopping center which would include more mall or strip mall type development and many sites of sale. The site plan used for the analysis is attached. Table 1: Trip Generation Summary and Comparison Daily PM Unit Measure ITE Rate Daily Rate PM Shopping Center 35267 SF 820 37.75 1331 3.81 134 Free Standing Discount Store 142200 SF 815 53.12 7554 4.83 687 Supermarket 47200 SF 850 106.78 5040 9.24 436 Fast Food with Drive-Thru 285 Seats 934 19.52 5563 0.97 276 High Turnover Sit Down Restaurant 14600 SF 932 112.18 1638 9.77 143 Car Wash 51 Seats 933 2.13 109 1.95 99 1 Tunnels 1 9481 775 775 77.5 77.5 Total 22010 1853 Internal Capture (from KH Memo) -1755 -280 Pass By Reduction (from KH Memo) -2400 -280 Tota New Trips Generate 178551 1 293 Total Trips Generated from Memo 1 110751 1 860 Table 2: Building Identification Building Code Unit Measure A 30000 SF B 30000 SF C 7300 SF D 43500 SF E 10000 SF F 10000 SF 12 7300 SF 51 5000 Seats SF M 1 Tunnels N1 40 Seats N2 5333 SF 0 160 Seats P1 85 Seats P2 4933 SF Q 47200 SF Future 38700 SF The above indicates that the trip generation and traffic analysis should be updated and the total trips are likely somewhere between the AUAR and the February 26' analysis. The analysis should then also be updated to include a warrant analysis given the new traffic volumes and delay calculations. Bolton & Menk is an equal opportunity employer, L Real People. Real Solutions. MEMORANDUM Date: 3/11/2020 To: Brandon Anderson, PE Jodie Scheidt, PE From: Alex Kabakov, PE Dustin deFelice, PE CC: Mike Boex, PE 2035 County Road D East Maplewood, MN 55109-5314 Ph:(6511704-9970 Fax: (6511 704-9971 Bolton-Menk.com Subject: Apple Valley HJ Development — Orchard Place Stormwater Management Plan Review City of Apple Valley, MN City Project No.: 2019-139 Project No.: N14.118878 This memo summarizes the review of the stormwater management plan documents submitted to the City of Apple Valley by Kimlcy Horn and Associates, Inc. including: • Apple Valley HJ Development — Orchard Place Stormwater Management Plan Review Responses (03-04-2020) • Orchard Place - Shoppes at Orchard Place and the Shores Preliminary Stormwater Management Memorandum (Revised 03/03/2020) • Rezoning and Preliminary Plat Site Development Plans for HJ Development — Orchard Place (03- 04-2020) • Full Build -Out HydroCAD Model (03-03-2020) Items to Address 1. The primary outlet of WVR-P54.2 (which consist of 44" orifices) and WVR-P54.2 (which consists of a 6.5" orifice) are located 1' above the defined NWL. The primary outlets should be lowered to match the NWL to ensure the basins draw down to the defined normal water level after an event without relying on infiltration. As indicated in the City's review memo dated 12/14/2018, this project site is located within an existing DWSMA (Drinking Water Supply Management Area) with a defined high vulnerability rating, therefore prohibiting infiltration unless a higher level of engineering review is conducted and demonstrates that a functioning treatment system will prevent adverse impacts to groundwater. In the City's review memo dated 1/8/2019, it was asked that the iron enhanced sand filter and infiltration benches be replaced with vegetative buffers. C:\Users\banderson\AppData\Local\Microsoft\Windows\INetCache\Content.Outlook\NMPJUD9X\2020-03-11 Stormwater Review Comments (003).docx Bolton & Menk is an ;:po, o.u,dy c:npkv•yrr Apple Valley HJ Development — Orchard Place Stormwater Management Plan Review Page: 2 Drainage calculations with an accompanying drainage area map for the private storm sewer as shown on C200 of the Preliminary Site Development plans should be provided for review. Areas with private storm sewer should be modeled as the complete network, consisting of individual structures with associated local drainage' areas which are connected by proposed storm sewer and routed to each downstream basin. 3. The overflow structures with open grates should be pulled back into the banks of the ponds to avoid steep slopes and the need to rip rap around the structures. 4. The proposed 24" submerged pipe between P54.1 and P54.2 is indicated as being perforated. Please explain the need for the perforations. 5. In the City's review memo dated 1/8/2019, it was requested that "The WVR-P54.1 pond outlet configuration shall be modified to reflect a skimmer structure as the primary outlet and a secondary overflow structure. The skimmer structure shall be located within the embankment and have a submerged pipe into the wet pond. The skimmer structure shall be set to skim up to the 10- year rainfall event. The skimmer structure shall provide 1' between the NWL and the top of the submerged pipe. The secondary overflow structure shall also be located within the embankment and be constructed per Apple Valley Standard Detail Plate STO-14. The rim elevation of the secondary overflow structure shall be at the HWL. Restricting stormwater flow to 2.3 cfs is preferred to be done via pipe size and slope rather than a weir wall with orifice opening to limit the potential for clogging." The intention of this configuration was to provide skimming and rate control in the primary structure and provide an outlet at the HWL in the secondary structure if the primary structure was to clog. Please clarify the anticipated function of the proposed outlet configuration of the penstock with orifice and the benefit of the mechanical orifice rather than a traditional orifice. Resolved Items Slope labels have been added to the proposed grading to verify that the designated 8' — 10' wide pond maintenance access routes have a maximum slope of 10%. 2. Submerged 24" RCP pipe of WVR-P54.4 has been adjusted to achieve 1' of separation between the top of pipe and NWL. 3. Model output indicates that pretreatment basin outlet pipes do not exceed allowable outflow velocity of 6 fps. 4. Model output indicates the HWL of WVR-P54.1 is at 934.5, therefore satisfying previous comments by City staff in order to provide sufficient freeboard to the existing North Creek Greenway underpass and trail. The WVR-P54.1 orifice outlet, which is cut out of the sealing panel of the proposed penstock, is now represented in the HydroCAD model as an orifice. Note that the current orifice size is 6.5" rather than 8" per the previous submittal. 6. The proposed erosion control plan has been revised to reflect Minnesota NPDES Construction Permit section 23.9 which states all stabilization needs to be completed within seven (7) calendar days after the construction activity in any portion of the site temporarily or permanently ceases. 7. The proposed pretreatment basins will act as interim sedimentation basins during construction periods. Bolton & Menk is an equal opportunity employer. Apple Valley HJ Development — Orchard Place Stormwater Management Plan Review Page: 3 8. The grading plan has been modified to provide as least 1 foot of freeboard between the proposed North Creek Greenway Trail and WVR-P54.2 basin's HWL. 9. The provided HydroCAD model has been adjusted to reflect MSE 3 rainfall distributions. 10. The plans have been changed to show RCP for all publicly owned and maintained storm sewer pipe. The pipe between Pond WVR-P54.2 and WVR-54.1 will continue to be proposed as HDPE to provide perforations. 11. D-8 and D-9 drainage areas generally follow the drainage patterns presented within the proposed interim and full-buildout grading plans. First flood elevation freeboard requirements have been met based on model output. 12. Impervious areas tributary to pretreatment basins between the Drainage Report and the provided HydroCAD model are generally consistent with one another. 13. Maintenance benches have been provided on the top of berms separating pretreatment ponds and wet ponds. The city and developer discussed and agreed that maintenance benches at the NWL of the pretreatment basins weren't necessary. 14. The modeled outlet configuration for WVR-P54.1 has been modeled appropriately in order to simulate the proposed design. 15. Runoff in excess of the 5.5 cfs from Johnny Cake Ridge Road is proposed to be directed through the private development and to pre-treatment basins prior to discharging in Wet Ponds WVR-54.1 and WVR-P54.2. 16. Wet Ponds a. The provided HydroCAD model indicates that proposed 2-,10-, and 100-year outflow rates do not exceed 5.66 cfs/acre of pond surface area. b. Overflow channels have been added between the pretreatment basins and ponds with crest elevations at the 10-year HWL. Annotation to the plan has been added for channel stabilization. c. A skimmer structure has been added at the 10-year event. A secondary structure has also been added within the embankment at the 100-year event. d. Ponds WVR-54.1 and WVR-54.2 are proposed to be constructed concurrently. The overland flow velocity is proposed to be 2.08 fps. Natural limestone riprap in proposed between the ponds to stabilize the open channel. 17. Pretreatment Basins/Forebays a. Based on current grading and design, pretreatment basin permanent pool volumes contain approximately 25% of the total water quality volume. The proposed design meets the MPCA's forebay sizing design recommendation of 10% of the total water quality volume. b. Based on current grading and design, pretreatment basin permanent pool surface areas consist of approximately 15% of the primary basin's permanent pool surface area. The proposed design meets the MPCA's forebay surface area design recommendation of 10% of the primary basin's permanent pool surface area. c. All pretreatment basins permanent pool depths are 4.5' — 6', which meets MPCA's recommended depth for forebay design of 4' — 6'. Bolton $ Menk is an equal opportunity employer. Apple Valley HJ Development — Orchard Place Stormwater Management Plan Review Page: 4 d. Skimming structures have been added to all pretreatment basins, with rim elevations being set to the 10-year HWL. 18. Pond Buffers and Setbacks a. Sheet EX-6 displays the 16.5' setback boundary throughout the entire site and indicates that all permanent structures are outside of the buffer zone. b. Landscape plans specify wet prairie seed mixture between the NWL and HWL. 19. Pond Emergency Spillway/EOF a. EOF's have been defined for WVR-P54.1 as well as all pretreatment basins. b. The existing North Creek Greenway Trail underpass has been called out as an EOF to WVR-P54.1. 6. Manning's n-values have been adjusted to 0.013 to reflect RCP roughness coefficients. 7. Iron enhanced sand filter benches have been removed from the design, along with the 8-foot maximum pool depth callout. 8. Infiltration bench callouts have been changed to read as vegetative buffers. 9. Proposed retaining wall locations have been identified within the revised plans in areas where slopes exceed 3:1. 10. Typical sections for the ponds depict the requested 28' clear width for the North Creek Greenway Trail corridor. 11. City trails have been added around the primary and pretreatment basins to create a looping feature. Bolton & Menk is an equal opportunity ernployer. ORCHARD PLACE REZONING/PRELIM. PLAT REQUEST LOCATION MAP 11111.E 111 a�►�1111►,►�► �--" �ww,�l�,11,� �■1 11 M 1111111 —_— ■ 1 1 1 1 Or �+ . r.��. .A1 I I \I% n u 0 W r-I L#AJ i a TIN % s 40 illll it iII ,Lqlet ky',►► IR.a I I I '►4 rrf } �� A c �ilf 111► � rr� �� Ll - - - - - - - - - - - - - - - uj w cq D Nl M-W. L 0 X UMN 4„ � �A1 Ilf I'-1lCh'OP—S- "I SS �Gh�IM1��G'C�S;c Plan any ❑--;r z-11RSv, � 1 I I � a` c: ti fM M m -0 II n n D I rnZi Z PRELIMI\A - \.- rC;g ' C' FII< 'ON 1vcu C- 2^ ee5 4: 1111 INN { sFF a fs 5isi: E yf' b �"i< Ely - F—rKimley»>Horn ORCHARD PLACEw n 157TH STREET WEST AND o' PILOT KNOB ROAD SITE PLAN ti..� wrm ��r.a'w•r.r.. c.ma.m..K .,, . 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