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Cottageville Park UpdateMemorandum public Works Department To: Honorable Mayor and Members of the City Council From: Tara Beard, Community Development Coordinatore--A- Steven J. Stadler, Public Works Director Copy: Mike Mornson, City Manager Date: June 7, 2012 Subject: Cottageville Park Update City and MCWD staff are continuing in the process that will lead to a transformed Cottageville Park. An update on the elements of this process are shown below: • Purchase of duplexes adjacent to Cottageville Park The inter -governmental agreement was executed in March 2012 between the City and Metropolitan Council. Metropolitan Council has purchased the duplex at 435/437 Blake Road. The City's acquisition consultant is negotiating the purchase of the duplex at 431/433 Blake Road. Staff is hopeful that this purchase will come to fruition within the next couple months. • Community Engagement Staff has taken the verbal, visual, and written exercises seeking park design input to the following places: Citizen's Academy Creekwood Estates Engaging Raspberry Renters kick-off event Westside Village Somali Community meeting North Junior High youth that live in the corridor at an after school program at Eisenhower Ramsgate Ice Cream Social Planning and Zoning Commission We are scheduled to take the exercises to the Park Board on June 18, and a final, community wide opportunity for input will be scheduled at 43 Hoops as soon as a consultant is selected (late June or early July). We have gotten input from close to 100 different people already and hope to get much more! Four of the completed "design your park" exercises (see atch 1) were given to the short-listed consultants who were interviewed this afternoon for the Cottageville Park and Stormwater Plan. Interviewees were asked to interpret and respond to the exercises. Their response to the community outreach work is an important factor in selecting the right consultant. • Consultant Selection In early May an RFP was sent to selected consultants for preparation of a feasibility report for the expanded Cottageville Park site. Proposals were due on May 29. A well -attended pre - proposal informational meeting was held on May 16. Eleven firms responded to the RFP. Staff reviewed the proposals and selected four to interview — Cunningham Group, Bolton & Menk, Inc., WSB, and Solution Blue, Inc. Interviews were held during the afternoon of June 12. Staff will share the results of the interviews with the City Council at the meeting. The consultant tasks detailed in the RFP include: work with the City on the completion of the city -led public engagement process; develop alternative concepts based on public engagement input, city staff input, technical data developed to determine stormwater options; hold one open house to present the final park plan; present draft and final feasibility report to City Council and MCWD Board of Managers. The anticipated cost of these services is $40,000. Based on the proposals received it is projected that the consultant will complete the work in about 16 weeks, October/November 2012 timeframe. • Project Schedule November 2012: Finish feasibility report, begin final design work January 2013: Complete final design 2013: Complete stormwater improvements, Phase I of park improvements Atchs: 1. Four completed "Design Your Park" exercises 2. Consultant RFP M Lt }Ut ir"( i1G her 41�0 SS ' ,� Y i� I v Gl tY' CGy1 nuc` 1/I a ) r7 t o �1 i iO :S�kci .k4� Directions: -You must use all. blue stonmtmter pond pieces; but you can group them any way yoa'd like. - Cut-outs are roughly sized to reflect how much space is needed —but if you want lots of picnic space, for example, you can use more than onepicnie cut-out. - Space without any cut-outs is considered tlexible or open space and could be used for soccer fields, ice rinks or other activities. You can specify what you'd like io happen in the open spaces if you'd like. - You can use the pc'tt to draw in things there are no cut-outs for, but keep in mind there might not be a cut-out because it is not a plausible amenity (i.e. pool, stadium). - Once you have things where you like them, use the glue sticks reattach the cut-outs to the map. - You can include the un -acquired property in your design, but we cannot guarantee that land will be part of the future park. Now Park Boundaries Un-acquircd Property Directions: -You. must use all blue storrawater pond pieces, but you can group thein any way you'd like. - Cut-outs are roughly sized to reflect how much space is: needed —but if you want lots of picnic space; for example, you can use more than one picnic cut-out.. - Space without any cut,outs.is considered flexible or open space and could be used for soccer fields, ice.rinks or other activities. You can specify what you'd like to happen in the open spaces if you'd like. - You can use the pen. to draw in things there are no cut-outs for,, but keep in mind there might not be a cut-out because it is not it plausible amenity (Le, pool, stadium). - Once you have things where you like them, use the glue sticks to attach the cut-outs to the map. - You can include the un -acquired property in your design, but we cannot guarantee that land will be a part of the future park. New Park Boundaries MUn -acquired Property Directions: -You must use all blue stormwater pond pieces, but you can group them any way you'd like.. - Cut-outs are roughly sized to reflect how much space is ncedcd—but.if you want lots of picnic space, for example, you can use more than one, picnic cut-out. - Space without anyy cut-outs is considered flexible or open space and could be used ror soccer fields, ice rinks or other activities. You can specify what you'd like to happen in the open spaces if you'd like, - You can use the pen to draw in things there are no cut-outs for, but keep in mind theft; might not be a cut-out because it is not a plausible amenity (i.e. pool, stadium). - Once you have things where you like them, use the glue sticks to attach the cut-outs to the map. - You can include the un -acquired property in your design, but we cannot guarantee that land will be a part of the future park. New Park boundaries Un -acquired Property in d6f`eararrBCvnnninn rA Community Basketball Performance Group of Picnic Pienic Tables Garden Court Restrooms Playground space Trees Shelter Y� y� l Directions: -You must use all blue stortmvater pond pieces, but you can group them any way you'd like. - Cut-outs are roughly sized to rellec:t how much space is needed —but if you want lots of picnic space, for example, you can use more than one picnic cut-out. - Space without any cut-outs is considered Ilexible or open spine and could be used for soccer fields, ice rinks or other activities. You can specify what you'd like to happen in the open spaces if you'd like. - You can use the pen to draw in things there are no cut-outs for, but keep in mind there might not be a cut-out because it is not a plausible amenity (i.e. pool, stadium). - Once you have things where you like them, use the glue sticks to auach the cut-outs to the map. - You can include the un -acquired property in your design, but we cannot guarantee that land will be a part of the Altura park. Old Park Boundary New Park Boundary Un -acquired Property city of o kips 1010 ,First Street South ® Nopkins, MN 55343- 7573 ! Phone: 952-935-8474 • Fax952-935.1834 Web address: www.hopkinsmn.eom May 9, 2012 RE: Request for Proposals - Cottageville Park Dear Sir or Madam: The City of Hopkhls is working cooperatively with the Minnehaha Creek Watershed District on the redevelopment of Cottageville Park along BIake Road in Hopkins. The overall vision for the park is to create an outstanding space that will accomplish the following: ® Provide for the needs of the immediate neighborhood while serving the region, including future SW LRT riders ® Fit contextually with the Minnehaha Creek that flows through the park ■ Create an award-winning space that will be a draw for redevelopment in the entire corridor The park redevelopment is also ail opportunity to provide needed storm water treatment, use cutting edge techniques for green development of the park, and incorporate maintenance -friendly facilities. A successful project is one in which the storm water improvements and park elements are designed together, are seamless, and make the best use of the valuable space. Background Information The Blake Road Corridor is home to diverse residents, businesses, and amenities. The majority of the over 1,400 dwelling units is rental, and there is a wide variety of businesses including retail, office, and Partnering wit( the Conununity to Enhance the Qtality oflife 0 Inspire 0 Educate ® Involvc o Co ianoideate 0 warehouse/ industrial. Large immigrant populations including East Jndian, East African, and Hispanic are represented,and over 40 languages are spoken in the Corridor. There are two parks, a creek, and a major regional trail in the neighborhood, but despite these amenities the infrastructure and access within the Corridor are lacking. Recent public investment and plans for future light rail transit through the Corridor have created an increased focus on community engagement and transit -oriented development. One particular public realm improvement that has been identified as a key to the improved livability of the Corridor is the expansion and redesign of Cottageville Park. A small, hidden pocket park; Cottageville has suffered from poor visibility, few amenities, and both real and perceived safety concerns. The City of Hopkins and the Minnehaha Creek Watershed District have formed a partnership that has resulted in the acquisition of 415 and 427 Blake Road, as .well as 1303 Lake Street NE. These properties separated the park from Minnehaha Creek and Blake Road. The City is in the process of acquiring 431 and 435 Blake Road to complete the land acquisition for the expanded park. (See attached Map 1) On the enlarged park site, new stormwater management utilities, connections to a regional trail, and improved park amenities are planned and are the reason for this RFP. Before aerial photograph of Cottageville Park area Current aerial photograph of Cottageville Park area Several reports and studies have been completed on the area already and can be found at: http://www.hopkinsn-a-i.com/development/current/blake/index.p hp These include: ® Southwest LRT Station Area Planning - Blake Station and Blake Road Corridor ® 2009 Blake Road Corridor Small Area Plan - Hay Dobbs Community Assessment - Wilder Foundation Please note that these studies are not intended to represent the best use of the park. That will be determined through a combination of public outreach events and input from your firm's creative team, City staff, Hopkins City Council, and the Mizuzehaha Creek Watershed District staff and board. SCOPE OF WORK The following items are part of the scope of work for this project. Overall work plan We envision the planning process to be iterative and complex with the major tasks being: • Stormwater Piping and Treatment Improvements ® Public Outreach • Park Planning These elements should not be approached as separate tasks. An optimal plan would use the stormwater treatment areas to complement the design and activities of the park. Stormwater By agreement, the storinwater component for Cottageville Park will follow the attached Exhibit A. Development of the plan includes the following elements: - Identification and Location of Potential BMP's: Identification of geographic location and form of best management practices (BMP's) that meets the exhibit A requirements. Potential BMP's include, but are not limited to, infiltration basins or other practices, wetland restoration, revegetation. We have a strong desire to find a balance between minimizing the above -ground footprint of the BMP's, creating a space that provides a stormwater educational experience, and being cost effective. Quantification of water quality benefits, nutrient reductions and runoff abstraction of identified BMP's: Adequate technical analysis of runoff rate, path, timing of inflow/ outflow, runoff volumes for design storm events, and quantification of runoff volume and nutrient loading under existing and proposed conditions is required. BMP`s could either build/ expand upon existing infrastructure or be created in locations within the subwatershed where conditions permit. Proximity to important natural resources within the subwatershed must be considered, and high quality upland or wetland natural areas must not be negatively affected as a result of implementation of BMP's. ® Wetland Hydrology and Ecology: Identification of wetland restoration/ creation opportunities within the identified subwatershed that could maximize external load reduction and abstraction of stormwater runoff. Adequate technical analysis of runoff rate, path, timing of inflow/ outflow, duration and frequency of pond -ig and saturation of existing and proposed conditions is required. Heightened wetland elevations on adjoining properties must also be identified and evaluated for impacts on existing land uses and habitat values. 9 Tasks; nclude: a) Initial Project Meeting: CONSULTANT will meet with MCWD Staff and City Staff to discuss the details of the Project. CONSULTANT will review all relevant technical and other background material related to the existing and future conditions of the watershed and clarify project goals with City and MCWD Staff. This will include a site vist to assess ground conditions. b) Evaluation of Existing Conditions and Future Proposed Conditions: CONSULTANT will utilize all available information and refine existing hydrologic and pollutant loading models, as needed, to analyze nutrient and volume loading under existing and proposed project alternative conditions. c) Technical Data .Acquisition: CONSULTANT will acquire additional technical data necessary to assess the feasibility of proposed alternatives. Technical Criteria All modeling and associated analysis must be performed h1 the following formats unless otherwise approved and directed by MCWD Staff: ® Streamflow/stornlwater runoff rate: XP-SWMM ® Nutrient Loading: PLOAD; and P8 or PondNET Public Outreach The goal of the Cottageville Park redesign outreach process is to receive authentic input from a spectrum of stakeholders. A three- part input exercise was carefully designed by City staff to achieve this goal. The exercise has been utilized at various community events and will be held at at least one additional public meeting after the consultant is selected for their participation. Written, verbal, and visual input is sought to ensure comprehensive community contribution to the park plan. That said, the City will look to the consultant to help interpret the input axed use it to inform design. At the conclusion of the City -led participation process, the consultant will hold one open -house public meeting to present the final (or close to halal) park plan. The consultant is expected to be able to articulate how the community input process impacted the final park plan. Park Planning Although the park is expanding, the activities, amenities, axed features it must contain will present a challenge. Park plaxlaling efforts will need to explore cross -utilization and combined amenities to achieve all of our ambitious goals. The park must serve the neighborhood, which is very diverse, the City, and the region. It must also be a catalyst for revitalization, livability, and " redevelopment. That said, the most important outcome of the new park is that it is USED. The city realizes that a new park will need to be constructed in phases as funding permits. To that end, Hopkins has recently been designated as a Playful City USA by the Kaboom! organization, opening up some specific playground funding opportunities. The City will continue to seek funding sources to implement the plan, but it should be designed with the idea of phasing in mind. We are seeking a park plan that is ambitious and creative. We envision an award-winning park that will be recognized throughout the region and even country as an example of community building, neighborhood revitalization, water resource protection, and economic development. Deliverables a) Draft Planning Report: CONSULTANT will evaluate the feasibility, effectiveness, costs, and benefits of the identified project alternatives and provide reconunendations. The report will identify location, size, technical criteria, cost estimates, and other design elements of recommended project alternatives and include: i. Map of proposed project area or identified locations of project elements. Hard copy and portable document format (pdf) that includes the following: 1. Aerial photo 2. Existing water resource features 3. Parcel lines using existing parcel data 4. Size, type and location of management practices throughout the proposed project area 5. Catchment areas for each BMP q* ii. Detailed site plan showing the park amenities and layout coordinated with above ground stormwater elements. iii. A detailed cost -estimate that itemizes the projected costs of design and implementation of each aspect of the project. Cost -estimates must also include estimated long-term management costs of operation, equipment maintenance and replacement projected annually. iv. An operations and maintenance plan that provides for short-term maintenance of necessary project components included in the construction contract as well as long-term management of the project area by the City. b) Draft Feasibility Meeting/Presentation: City Staff and CONSULTANT will jointly present the results of the Feasibility Draft Report to the City Council. CONSULTANT will be responsible for preparing power point presentation and graphics for the presentation. c) Final Feasibility Meeting/Presentation: CONSULTANT will provide one presentation to the Hopkins City Council and one presentation to the MCWD Board of Managers summarizing the results of the Final Feasibility Report. CONSULTANT will coordinate development of the presentation and discussion with MCWD Staff prior to the meeting. As noted in the Public Outreach. section, a final open house with the public will also be required. PROPOSAL The proposal is due before 4:30 PM local time May 29, 2012, at City Hall, 10101St Street South, Hopkins, MN 55343. An informational meeting for those intending to submit a proposal will be held at Hopkins City Hall on May 16, 2012, at 8:30 a.m. We are looking most closely at the personnel assigned to the project and their experience with both this type of project and positive experiences working with the public. We expect the proposal to accurately present the members who will be assigned in the field as well as the project design and management staff. Proposers will submit a tentative schedule, a chart showing the breakdown of feasibility tasks by staff member and cost, and the total cost for the Feasibility Phase. Additionally, proposers will submit a maximum percentage of estimated construction cost for all services through the Final Design phase described above (inclusive of the Feasibility Phase). A separate hourly with cap or lump sum final design contract will be negotiated prior to commencing that phase. The proposal will be a maximum of 20 single -sided pages or 10 double -sided pages (inclusive of cover letters, appendices, and attachments) and divided into the following sections: ® Statement of Qualifications ® Project Approach • Scope of Services ® Project Team • Related Experience of Project Team Members ® Project Schedule ® Cost of Feasibility Report Phase (hourly with cap) ® Cost of Feasibility and Final Design Phases (% of estimated construction cost) Proposals will be evaluated based on the following criteria: ® Qualifications ® Project Approach • Project Team ® Proposal Cost We are looking for the firm that has the best ideas and will work closely with City of Hopkins and Minnehaha Creek Watershed District Staff to produce a successful project. Our intention is to build a relationship with the successful firm for future projects. Thank you in advance for your work on the proposal. All inquiries should be directed to me at jbradford@hopkinsnin.com or 952-548- 6356. Sincerely, )Ilr /hn R. Bradford, zEngineer City � Hopkins — MCWD Cooperative Agreement IMAM STORMWATER FACILITY STANDARDS: Stormwater facilities located on the 427-429 Blake Road Property (the "MCWD Property") and contiguous parcels owned by the City of Hopkins or in which it has acquired easement rights, designed and constructed by the City of Hopkins shall generally conform to the performance standards of the September 8, 2009 SEH Concept Plan. These facilities shall provide water quality (phosphorus load reduction), water quantity (runoff volume reduction) and runoff rate control for 32.48 acres of residential and commercial land in the City of Hopkins, identified by the City of Hopkins and SEH as subwatersheds EE -1 (1.19 acres), EE -2 (9.65 acres), EH -1 (3.13 acres), EH -2 (2.7 acres), EH -3 (4.04 acres), EK -1 (0.48 acres), EK -2 (11.29 acres). Stormwater facilities are to be designed and constructed to treat the 32.48 acre tributary drainage area and shall. (a) provide at least 17 lbs/year of phosphorus load reduction, (b) reduce runoff rates to the extent feasible and in no case increase runoff rates above existing rates for the 1,10 and 100 year design storm events and (c) provide maximum amount of runoff volume reduction feasible based on site specific conditions such as groundwater elevation, hydrologic soil groups etc. Pre-treatment shall be included for stormwater facilities in accordance with the Minnesota Stormwater Manual. Design performance of facilities shall be documented through the use of appropriate hydraulic, hydrologic and pollutant load modeling. Modeling will be based on the 2030 buildout for the drainage area, presuming that water quality, peak flow and volume for new development and redevelopment will be managed consistent with present Hopkins and MCWD permitting standards. Modeling and design of stormwater facilities on site should incorporate the following recommendations outlined in the February 10, 2010 memorandum from Wenck Associates to the Minnehaha Creek Watershed District: "Evaluation of Conceptual Stormwater Routing Plans for Cottageville Park on Blake Road in Hopkins" (attached). Adjustments to modeling: • Use more recent precipitation and temperature files, and increase the number of runs from 1 to 3. • Change the filtration efficiency for soluble fraction (PO) from 901% to 0% to reflect that soluble phosphorus will be passing through the system untreated. • Reduce pond volumes to reflect the likely limit in pond depth and maintain existing footprint for conceptual plan. Original depths were about 2.2 to 2.3, revised pond depths should be set to 1.8 feet to accommodate an underdrain system. A Conceptual Alternative Design: • Characterize local groundwater elevation & soils prior to design. • Add pretreatment with a forebay or proprietary device, this will also reduce maintenance activities. • Use engineered filtration media to promote filtration, enhance plant roofing depth, increase evapotranspiration. • Consider assisted filtration by adding iron filings or an alternative to target removal of soluble phosphorus. Consider making this a demonstration project, by adding iron filings to one of the two ponds and measuring load reductions in both ponds, Some alternative routing scenarios would be necessary if this option is selected. • Design the biofiltration systems with underdrains. • Consider addition of a shallow profile stormwater collection/ passive irrigation system to the garden area (or two garden areas), This could be in -lieu of one of the ponds, or to treat additional drainage area, Consider making the garden a native plant showcase and adding educational or community outreach elements. The additional cost for passive irrigation in an area about the size of the planned garden -oval is about $160,000. The volume mitigation is equivalent to the 0.7 inch storm which corresponds to 50% P removal capacity, and 80- 90 % of storms. This can also serve as a demonstration for future multipurpose public land use projects. • Ada monitoring to gauge effectiveness of demonstration projects. Bypass winter and early spring wet weather and large storm events to avoid impacts of road salt and large storms. • Disconnect Pond A and B, as the treatment train will do nothing but hydraulically overload Pond B. • Review updated MCWD XP-SWMM Model of the Creek to make additional recommendations. • Add educational kiosks. • The bio-filtintion area EK -1 should be expanded to treat the 1.25 inch event Bring existing Interceptor Crossing into compliance with the MCWD Waterbody Crossing Rule. Stormwater facilities may not include design features or management practices that unduly restrict groundwater flow through the site. VEGETATION STANDARDS: Native vegetation shall be planted and maintained in all bioretention basins such that a minimum of 95% native species cover and a maximum of 5% invasive species cover is retained. Vegetative Performance Standards: • Year 1 (first full growing season after construction): Seedlings of at least 4 native species shall be widely dispersed through the bioretention basins. No areas of bare soil larger than 16 square feet shall exist. There shall be no more than 56/o total coverage of exotic, non-native, or invasive vegetation (such as cattail). • Year 2 (second full growing season after construction): The bioretention basins shall contain at least 30% of all species contained in the specified seed mixture. No areas of bare soil larger than 9 square feet shall exist. There shall be no more than 5% total coverage of exotic, non-native or invasive vegetation. • Subsequent years after Year 2: The bioretention basins shall have a minimum of 95% cover of native, non-invasive vegetation and shall contain at least 40% of all species in the specified seed mix. No areas of bare soil larger than 4 square feet shall exist. There shall be less than 5% total coverage of exotic, non-native, or invasive vegetation. ECOLOGICAL RESTORATION & SECONDARY OBJECTIVES: In addition to achieving the above water quality, water quantity and rate control standards, design of the stormwater facilities on site should, as feasible, accommodate concurrent or future integration of broader ecological concerns, passive recreation and trails, active recreation and public education opportunities. The 75 foot average buffer may include the native planting areas within the rain water gardens and may include a pedestrian trail and at least one access point to the creek as shown in the concept plans prepared by the City. Any temporary excavations within the buffer area will have adequate erosion protection and shall be restored in a timely fashion. Stormwater facilities and the 75 foot creek buffer shall be planted and maintained with native vegetation suited to the site and anticipated soil moisture conditions. Design of stormwater facilities on site will conform to a tree preservation plan prepared by the MCWD after site inspection and consultation between the MCWD and Hopkins. MAINTENANCE: Maintenance terms described in this exhibit will be incorporated in recorded perpetual instruments (easement for the MCWD Property, declaration for Hopkins parcels). C 0 STORMWATER FACILITIES MAINTENANCE When construction is complete, Hopkins will perform an as -built topographic survey of the stormwater facilities. Bottom sediment elevations are to be observed annually and. measured every 3 years to monitor sedimentation. When half of the as -built volume has been displaced with sediment, the basin shall be excavated and rebuilt to its design depth. Hopkins shall perfoim annual inspections of stormwater facilities, stormsewer pipes and side slopes. Maintenance is required to remove trash and debris, and to repair eroded side slopes. Bioretention basins are to be inspected annually and after significant storms. The length of time required for a basin full of water to completely drain should be no more than 48 hours. If a basin does not drain at this rate, maintenance is required. Any proprietary devices shall be inspected and maintained in accordance with manufacturer instructions. Hopkins shall keep records of inspections and maintenance performed. VEGETATION MAINTENANCE Native vegetation shall be planted and maintained such that a minimum of 95% native species cover and a maximum of 5% invasive species cover is retained. Maintenance activities shall be performed by a qualified professional: ■ A certified wetland scientist or biologist shall conduct all vegetation surveys. • A licensed contractor shall perform all maintenance within the bioretention basins. N ,2`' Sol �y z i ■ } 1 t .r is 6 � Y Q_ f K_ WAS 4 a 1 In ' I ` - '[ t .may r �s lot', 1 ~ t A R ------------ Epp nan w 1. 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