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2020.04.07 Work Session Packet 4141 Douglas Drive North • Crystal, Minnesota 55422-1696 Tel: (763) 531-1000 • Fax: (763) 531-1188 • www.crystalmn.gov Posted: April 3, 2020 City Council Work Session Agenda April 7, 2020 Immediately following the City Council meeting Council Chambers/Zoom Meeting Pursuant to due call and notice given in the manner prescribed by Section 3.01 of the City Charter, the work session of the Crystal City Council was held at ______ p.m. on April 7, 2020 in the Council Chambers at City Hall, 4141 Douglas Dr. N., Crystal, Minnesota. I. Attendance Council Members Staff ____ Parsons ____ Norris ____ Adams ____ Therres ____ Banks ____ Gilchrist ____ Budziszewski ____ Ray ____ Deshler ____ Revering ____ Kiser ____ Serres ____ LaRoche II. Agenda The purpose of the work session is to discuss the following agenda item: 1. Storm water long term plan. III. Adjournment The work session adjourned at ______ p.m. *Denotes no supporting information included in the packet. Auxiliary aids are available upon request to individuals with disabilities by calling the City Clerk at (763) 531- 1145 at least 96 hours in advance. TTY users may call Minnesota Relay at 711 or 1-800-627-3529. Memorandum DATE: April 7, 2020 TO: City Council FROM: Mark Ray, PE, Director of Public Works SUBJECT: Storm water long term plan – central core Background In 2016, the City had planned to implement a project to remove accumulated sediment from Gaulke Pond. After the design and testing were completed, it was determined that the project budget at that time was not adequate for even a reduced scope project. But this effort led to some larger discussions about storm water management through the central core of Crystal. In addition to this effort within Crystal, City staff have been working in coordination with the Shingle Creek Watershed Management Commission on storm water issues further downstream in Robbinsdale and Minneapolis over the last few years. The project being discussed and proposed for future Council action is actually a part of this overall larger effort. In the larger context of storm water management in the City, over the past few years we have been primarily focused on the northern portion of Crystal due to the street reconstruction projects occurring in that area. Furthermore, the construction of the Becker Park storm water infiltration system and the currently underway design of the underground storm water system at Kentucky Ave and W. Broadway are two additional components of those efforts. Proposed Project The proposed project will develop a storm water model of the central core of Crystal that will be used to identify existing potential chokepoints in the system, such as those that may have led to street flooding on Brunswick Avenue (as shown on Figure 1). This information will then be used to develop future projects to address the identified problem areas. Building on the model, the work will then focus on the replacement of the existing Gaulke Pond storm water pump. The pump is vital, as it is the only way storm water leaves the central Crystal core. Currently, the controls for this pump are in a location where they could potentially be flooded out. The project will: • Design the dredging and possible minor expansion of Gaulke Pond to increase storm water storage Figure 1 Brunswick north of 42nd. Sept 20, 2018 Figure 2: Proposed storm water model area • Design theexpansion of Brownwood Pond to increase the amount of storm water that can be held there during major rain events (or spring thaw) to reduce flooding risk around Brownwood and Memory Ponds • Reconstruct the Gaulke Pond lift station to reduce the potential flooding of the lift station, possibly increase pumping, and reduce the city staff time required to operate/maintain the station during large rainfall/snowmelt events • Provide design solutions for two chokepoints where city staff have noted past flooding (including Brunswick Avenue shown in Figure 1) . Project Funding Three different projects are already included in the storm water budget long term plan. As these projects were put into the plan, it was the intent to make this part of a coordinated effort. What was not known at that time is exactly what approach would be taken. • $125,000 City storm water and flood analysis (2020) • $800,000 Gaulke Pond design, dredging, lift station rehab (2021) • $750,000 Brownwood pond dredging (possible) and expansion (2022) Total = $1,675,000 budgeted (including professional services) Based on conversations with Barr Engineering Co., it was determined that bundling this work effort was the most efficient approach. Furthermore, the Gaulke and Brownwood Pond projects may be bid as one project, which could result in better bid pricing. Project Cost The proposed professional services agreement (from modeling, through design, and construction) with Barr Engineering is for $250,700 (15% of the overall budget, which is consistent with other projects such as the street reconstructions). Project Communication Properties around Gaulke Pond were notified of the potential projects, as well as updates, a number of years ago. Updates will be provided to them once a timeline for construction is known. Outreach for residents around Brownwood Pond will start earlier to make them aware of the project, get their input, and try to identify every opportunity to maximize storm water storage around Brownwood Pond to minimize risk to property owners. Attachment • Barr Engineering Co. proposal Recommended Action No formal action is requested at this time. The work session on April 7 will update the Council on this project, provide a broader background on how this project fits into larger storm water efforts. At the April 21st Council Meeting, the Council will be asked to consider approving this contract with Barr Engineering Co.. \\barr.com\Administration\Business Units\WR\Proposals\2020\P072.20 City of Crystal Gaulke Flood Study & Lift\Scope\Gaulke Pond Work Order_v5 - final.docx Page 1 of 9 Ver. 02-24-20 Last Reviewed: 02-24-20 Work Order For: Gaulke-Brownwood Street Flooding Analysis, Lift Station, and Pond Dredging Project Professional Consulting Services Agreement Master and Work Order Form Dated April 1, 2020 between Barr Engineering Co. (Barr) City of Crystal (City) 4300 MarketPointe Drive, Suite 200 4141 Douglas Drive North Minneapolis, MN 55435 Crystal, MN 55422-1696 Designated Representative: Designated Representative: Karen Chandler, Vice President, PE Mark Ray, Director of Public Works/City Engineer I. Background/Project Understanding In 2016 Barr completed construction plans for the Gaulke Pond Dredging Project. Due to CIP funding limitations the project was delayed. In 2019 the City of Crystal requested that Barr assist with scoping the addition of a lift station and expansion of Gaulke Pond. Through discussions it became apparent that the City’s planned expansion of Brownwood pond (upstream of Gaulke Pond) had implications for the design of Gaulke Pond and that the two projects could be combined. The City also requested Barr’s assistance to better understand the operation of the city’s infrastructure, as well as flooding concerns at several locations. Barr has since reviewed the available watershed modeling and confirmed that no one model exists at the resolution needed to analyze the City’s flooding issues and how they could be addressed. II. Proposed Work Plan Based on our understanding of the project, our proposed work plan includes the following tasks: Task Description 1 Collect and review existing conditions data 2 Existing Conditions Survey 3 Perform hydraulic evaluation of the existing storm sewer system 4 Perform hydraulic evaluation of the proposed modifications to Gaulke Pond, Brownwood Pond, and the Gaulke Pond lift station 5 Sediment Sampling 6 Investigate funding options 7 Prepare evaluation report/feasibility study 8 Permitting 9 Design Services 10 Bidding and Construction Services 11 Operations and maintenance (O & M) plan 12 Project management Below is a detailed discussion of the items included in the proposed work plan. \\barr.com\Administration\Business Units\WR\Proposals\2020\P072.20 City of Crystal Gaulke Flood Study & Lift\Scope\Gaulke Pond Work Order_v5 - final.docx Page 2 of 9 Ver. 02-24-20 Last Reviewed: 02-24-20 Task 1: Collect and review existing conditions data Barr will obtain and review information provided by the cities of New Hope and Crystal related to the existing stormwater system and watershed conditions. We assume the City will provide the following information:  GIS or AutoCAD files for municipal stormwater utilities, including catch basin cover/inlet types in the detailed study areas (“pinch points”) discussed below  Record drawings for the Gaulke Pond lift station, wing walls, inlet pipe, forcemain, and electrical controls  Typical valve/gate operations on Old Dutch and Brownwood Ponds  Any recent survey information collected by City staff, such as survey of lowest adjacent grade of structures adjacent to Gaulke or Brownwood Ponds.  Municipal stormwater pipe inspection information and/or documentation report, especially in the detailed study areas  City maintenance records identifying the pipe sections that are known to be in poor condition and in need of replacement  Any reports, photographs, or anecdotal observations of previous surcharging or flooding within the study area, including location, duration, depth of flooding, and time of observations. This should include the history of flood damages and the successful preventive measures (for example, number of times sandbagging was needed for protection).  Available soil borings or geotechnical information such as laboratory tests or infiltration tests within the study area  Site visit to Gaulke, Brownwood, and Old Dutch ponds to inspect and evaluate existing conditions Review of available information will guide the evaluation of potential system modifications to mitigate flooding and provide water quality treatment within the study area. Barr will not perform any field verification or data collection of storm sewer data. Barr will include a summary of the data reviewed for this study in the evaluation report. Task 2: Existing Conditions Survey Barr will perform a topographic and bathymetric survey in Brownwood Pond. Information collected will include topography, bathymetry, and site features (utilities, structures, roads, etc.). Survey will also collect tree location, diameter, and species surrounding the ponds so they can be identified on the design drawings as either protect or remove. We assume some limited survey at Gaulke Pond is needed in and around the existing lift station to supplement the survey data already collected by Barr in June 2016. This survey information will be used to develop a background for developing a base map for detailed construction drawings. Depending on what we find during the data collection step, additional survey may be needed to obtain information for other critical infrastructure affecting the function of the pond system. Task 3: Perform hydraulic evaluation of the existing storm sewer system The existing conditions XP-SWMM stormwater model for the study area was developed by Stantec for a Flood Insurance Study (FIS) Letter of Map Revision (LOMR) in 2012. (Attached “H & H Modeling Detail” figure shows the study area). Barr will convert the model to PCSWMM and add detail to the model based on the items discussed in Task 1. Note that XP Solutions, the makers of XPSWMM, was recently purchased by Innovyze. Innovyze has not indicated if XP-SWMM will continue to be supported and conversions between XP-SWMM and PCSWMM are relatively straightforward. Additionally, PCSWMM offers improved 2D analysis that can be used for the detailed study areas and improved flood mapping and visualization. \\barr.com\Administration\Business Units\WR\Proposals\2020\P072.20 City of Crystal Gaulke Flood Study & Lift\Scope\Gaulke Pond Work Order_v5 - final.docx Page 3 of 9 Ver. 02-24-20 Last Reviewed: 02-24-20 Barr will use the updated PCSWMM model to:  Determine where more refined watershed delineations (i.e., smaller-sized watersheds) are needed to understand the overall system  Understand existing flood elevations (under pre-Atlas 14 conditions like those submitted in the 2012 LOMR)  Review Atlas 14 rainfall depths and compare to the snowmelt analysis to identify the critical hydrologic event  Understand flood risk to structures and roads/streets throughout the watershed  Determine if additional refinements are needed to model the pond outlets and/or storage volumes Barr will review the simulation results to identify “pinch points” (i.e. restrictive pipe segments or inlet capacity restrictions) that may result in street flooding in the system within the Gaulke Pond watershed, but especially at the following locations:  Colorado Ave, south of 42nd Ave  Brunswick Avenue, north 42nd Ave Barr will attend an in-person meeting with City of Crystal and City of New Hope staff at Crystal City Hall to discuss partnering opportunities. Barr will perform inundation mapping and identify habitable structures that are at risk of flooding under the existing conditions. We will also summarize the stormwater volume that is stored on the ground surface during the 2-, 5-, and 10-year events for the “pinch points” study areas of Colorado Avenue and Brunswick Avenue, and the volume of stormwater that is stored above the lowest homes during the 100-year event (i.e., the volume of surface inundation that must be stored or conveyed downstream to prevent impacts to habitable structures). Barr will identify other storm sewer segments in the watershed that have insufficient pipe and/or inlet capacity for the 2-, 5-, and 10-year events. We will estimate structure elevations based on available LiDAR elevation data or FEMA elevation certifications and will not collect survey data as part of this task. Barr will summarize the hydraulic evaluation of existing conditions in the report (Task 7). Task 4: Perform hydraulic evaluation of the proposed modifications to Gaulke Pond, Brownwood Pond, and the Gaulke Pond lift station Barr will evaluate scenarios that reduce flood risk to habitable structures for the Gaulke Pond system, including:  Brownwood Pond and Gaulke Pond expansions. We will determine the maximum practical expansion of Gaulke and Brownwood Ponds for use in modeling to assess if the expansions provide the needed water level decreases to reduce the floodplain.  Gaulke Pond pumping rates. We will evaluate outcomes of both a 1400 gpm flowrate, and a higher flowrate to be determined (pending the results of our review of existing models and infrastructure, and discussions with the downstream cities of Robbinsdale and Minneapolis)  Drawdown of Gaulke Pond in anticipation of rainfall or snowmelt events (this will require discussion with the Minnesota Department of Natural Resources (MDNR) to understand allowable drawdown scenarios)  Up to two (2) combination(s) of the above When calculating the required expansion of Gaulke and Brownwood Ponds and/or increased discharge from the Gaulke Pond lift station, Barr will assume that increased pipe and inlet capacity is added to the \\barr.com\Administration\Business Units\WR\Proposals\2020\P072.20 City of Crystal Gaulke Flood Study & Lift\Scope\Gaulke Pond Work Order_v5 - final.docx Page 4 of 9 Ver. 02-24-20 Last Reviewed: 02-24-20 detailed study areas of Colorado Avenue and Brunswick Avenue (Task 2) to reflect the future condition with the greatest increase of stormwater rates/volumes to the Gaulke Pond system. We will work with MDNR staff to develop a draft operations plan for adjusting pond levels (drawdowns) to accommodate spring or storm runoff. Barr will prepare concept-level cost estimates for the scenarios identified above. Barr will also evaluate alternatives for additional pipe capacity, added inlet capacity, street raises, and upstream BMPs to reduce contributing runoff to the Colorado Avenue and Brunswick Avenue detailed study locations and to evaluate whether reduced tailwater in the Gaulke-Brownwood Pond chain will reduce the depth and/or duration of street flooding at the locations. Barr will prepare concept-level cost estimates for alternatives that reduce the depth and/or duration of street flooding at the Colorado Avenue and Brunswick Avenue detailed study locations. Task 5: Sediment Sampling We will conduct sediment sampling to determine if the planned dredged sediment is contaminated, thus restricting the use of the dredged material and to select proper disposal of the material, and to estimate the location of the natural pond bottom. The sediment sampling will follow the Minnesota Pollution Control Agency’s (MPCA) “Managing Stormwater Sediment Best Management Practice Guidance” (May 2017). For ponds with a dredge area less than 2 acres, a minimum of 2 sediment cores. For dredge areas between 2 and 4 acres, the MPCA guidance requires collection of one sediment core and sample for each acre of planned dredge area. Therefore, the following number of samples will be collected and analyzed from each pond:  Brownwood Pond – 2 sediment samples collected from 2 coring locations, based on its approximate size of 0.5 acres.  Gaulke Pond – None. Sampling in 2016 confirmed that this material would need to go to a landfill. However, due to the time since the sampling occurred, the Contractor’s selected landfill may require more updated testing in order to accept the material. If required, Barr would perform the sampling during construction. If performed, we assume it will require 2 sediment samples collected from 2 coring locations, based on the approximate size of the planned area to be dredged of 1.5 acres. Sediment samples will be analyzed for the baseline parameters described in the MPCA guidance document: polycyclic aromatic hydrocarbons, arsenic, and copper. In addition, Barr recommends analyzing sediment samples for all 8 RCRA metals (includes arsenic), gasoline range organics, and diesel range organics with silica gel cleanup. Task 6: Investigate funding options Concurrent with Tasks 3 & 4, Barr will investigate possible funding options based on the potential system modifications identified. Funding sources may include project stakeholders and grant opportunities, including the Federal Emergency Management Agency Flood Mitigation Assistance (FMA) grant program. Barr will include a summary of potential funding partners and options in the report (Task 7). Our cost does not include assisting the City with applying for any potential grant opportunities. Task 7: Prepare evaluation report/feasibility study Barr will summarize the results of the evaluations (Task 2 through Task 6) in a comprehensive report and submit the report to the City for review. The report will describe the methodology and potential system improvements, and include figures showing the conceptual layouts, the concept-level cost estimates, and the recommendations regarding concepts to implement. Following review by City staff, Barr will attend an \\barr.com\Administration\Business Units\WR\Proposals\2020\P072.20 City of Crystal Gaulke Flood Study & Lift\Scope\Gaulke Pond Work Order_v5 - final.docx Page 5 of 9 Ver. 02-24-20 Last Reviewed: 02-24-20 in-person meeting with City staff at Barr’s office, incorporate one round of comments into a final report, and provide a PDF of the final report to the City. Barr will prepare a presentation and attend 1 City Council work session to present on the project. Task 8: Permitting Several regulatory agencies may be involved in the planning and permitting of the project, including MDNR, US Army Corp of Engineers (USACE), Shingle Creek Watershed Management Commission, Hennepin County, BWSR, and the City of Crystal. It is critical that we approach the agencies early in the project to identify and evaluate permitting requirements. This scope includes the following permitting subtasks: 1. Permit identification and evaluation: We propose to contact the referenced agencies within one month of authorization to proceed to understand potential permitting requirements. 2. Permit applications: We will assist the City with the permit applications for agencies requiring permits for this project. We assume the City will pay any permitting fees directly. Alternatively, Barr can pay the permitting fees on behalf of the City and charge the expense to the project. We assume the following permits/approvals will be required: a. MDNR work in public waters permit (submitted via MPARS permitting system). i. Gaulke Pond – Barr submitted and received this permit which expires February 13, 2022. However, due to the anticipated changes to the design we anticipate that resubmitting the permit will be required. Drawdown scenarios will be included in the permit. ii. Brownwood Pond – Barr will prepare and submit this permit application. b. Wetland Conservation Act (WCA) approval: i. Gaulke Pond – Barr submitted the wetland delineation report and received a Notice of Decision (NOD) dated September 23, 2016 for wetland boundary and type approval. This decision is valid for five years from the date of decision unless a longer period is advised by the Technical Evaluation Panel (TEP). Because the project is anticipated to extend beyond this date the TEP would need to reconsider extending the date. The 2016 wetland evaluation area did not include any WCA regulated wetland. If the current project extends beyond the initial wetland evaluation area, Barr will complete a revised wetland delineation report. If work is planned within WCA regulated wetland, Barr will prepare and submit an application to request approval of work within a WCA wetland. ii. Brownwood Pond – Barr will perform a wetland delineation and prepare a report. We will request a wetland boundary and type approval by completing Attachment A in the joint application form and submitting for approval. For both Gaulke Pond and Brownwood Pond, Barr will prepare and submit an application to request approval of work planned within a WCA wetland. The project will be designed to avoid and minimize wetland impacts where possible with the goal of meeting WCA no-loss or exemption criteria not requiring wetland replacement. If the project goals cannot be met without wetland impacts requiring replacement, the permitting costs associated with this work order may need to be re-evaluated. After we develop a concept plan, we will hold a pre-application agency meeting to assist in clarifying anticipated WCA approval needs. c. US Army Corps of Engineers permit (Section 404 Permit and Section 401 Certification). We will submit the joint permit applications to both the LGU and the USACE. The project may be pre-authorized under a Nationwide Permit from the USACE if the project can be performed through excavation only (i.e., no grading). If the project goals cannot be met \\barr.com\Administration\Business Units\WR\Proposals\2020\P072.20 City of Crystal Gaulke Flood Study & Lift\Scope\Gaulke Pond Work Order_v5 - final.docx Page 6 of 9 Ver. 02-24-20 Last Reviewed: 02-24-20 without wetland impacts requiring compensatory mitigation, the permitting costs associated with this work order may need to be re-evaluated. After we develop a concept plan, we will hold a pre-application agency meeting (same meeting as 8.2.b.ii.) to assist in clarifying anticipated permitting needs. d. Construction Stormwater General Permit from the Minnesota Pollution Control Agency (MPCA). This permit would only be required if land disturbance outside of the pond dredging is greater than 1 acre (possibly needed at Brownwood Pond). If needed, the contractor would obtain this permit after the city awards the project. e. MDNR Water appropriations permit: This permit may be required depending on construction methods. The contractor would apply for and obtain this permit. f. Shingle Creek Watershed Management Commission (SCWMC): Barr will assist the City with preparing and applying for/obtaining approval from the SCWMC. Barr will prepare a presentation and present at a commission meeting. 3. Address agency comments: We will assist the City in addressing comments from the agencies on the permit applications. Addressing unanticipated comments may lead to additional costs outside this scope of work. 4. WCA LGU administration assistance: Should the project include WCA-regulated wetland impacts (i.e., impacts upslope from the ordinary high water where the DNR does not take jurisdiction), we will assist the City with WCA administration activities. These activities would include reviewing the application, preparing WCA Notices, communicating with Technical Evaluation Panel members, and providing recommendation for WCA decisions. To avoid a conflict of interest, Barr staff who did not prepare the application would conduct the WCA administration assistance. If wetland replacement is required, the WCA review associated with this work order may need to be re-evaluated. Task 9: Design Services Assuming the city decides to move ahead with the project, Barr will develop design plans for the Brownwood Pond expansion and the Gaulke Pond dredging and lift station projects. We will work with the City to identify where existing topography and site/property constraints will allow for expanded flood storage capacity. The plans will include any tree removals, slope stabilization, and restoration. Barr will also design upgrades to the Gaulke Pond lift station including a new inlet and overflow structure, wet well, valve vault, electrical and controls. It is assumed that the 2 existing 10 HP pumps will be replaced with 2 larger submersible pumps with variable frequency drives (VFDs). The new control panel will be located in a pre-engineered concrete building located out of the floodplain. Both the intake and forcemain pipes will be replaced and upsized to accommodate a larger flowrate. To help capture debris, Barr will design a trash rack on the intake pipe, a baffle structure around the pond intake, and a pond overflow structure with sump. In addition, we assume that the existing wing wall at the lift station inlet pipe is deteriorated and requires replacement. 1. Construction Drawings: We will develop the following: a. 50%, 90% & 100% plans – We will provide to the City for review and comment. We anticipate using the 50% design plans to prepare and submit permit applications. b. Anticipated drawings include i. Cover sheet ii. Existing conditions and erosion control plans iii. Removals plan iv. Site access & traffic control plans v. Stormwater Pollution Prevention Plan (SWPPP) vi. Civil site grading and dredging plans and details \\barr.com\Administration\Business Units\WR\Proposals\2020\P072.20 City of Crystal Gaulke Flood Study & Lift\Scope\Gaulke Pond Work Order_v5 - final.docx Page 7 of 9 Ver. 02-24-20 Last Reviewed: 02-24-20 vii. Storm sewer piping upgrades (if required) viii. Lift station process, structural (electrical building), and electrical plans and details ix. Wing wall structural plans and details (if required) x. Miscellaneous details xi. Restoration plans 2. Meetings: Barr will attend an in-person meeting with City of Crystal staff following City review of 50% plans. Barr will also prepare presentation boards and attend a public open house at the Crystal City Hall. 3. Specifications: We will develop front end documents (starting with City standards and making any required updates) and technical specifications for the 90% & 100% submittals. 4. Engineer’s opinion of probable cost: We will prepare an engineer’s opinion of probable construction costs for the 50%, 90% & 100% submittals. We will report the opinion of costs to the City in a unit price format. Task 10: Bidding and Construction Services 1. Bidding services: We will respond to questions from bidders, prepare any required addenda, and attend a pre-bid meeting at Crystal City Hall. We understand that bidding will be the responsibility of the City. Barr will prepare a presentation and attend 1 City Council work session to present on the project. 2. Construction services: The scope includes the following construction services: a. Pre-construction meeting: Barr will attend a pre-construction meeting on-site. b. Construction Observation: The scope includes budget for up to 150 hours of project observation during the construction phase of the project. The budget assumes Barr will perform limited full-time observation during construction of critical features, such as the lift station upgrades and buried pipe installation, and part time (half-day) visits during construction of non-critical features. We understand that Barr will perform all of the construction observation and that City staff will be responsible for handling any resident issues and general project public communications. Barr will coordinate observation with the City as necessary so they can be on-site to witness construction of important features. c. Construction Administration: We will provide the following services: i. Submittals: We will manage all submittals including tracking, review, resubmittals and approvals. ii. Pay Applications: We will manage and review pay applications, including verification of pay quantities. iii. Change Orders: We will prepare all change orders. d. Construction Staking: We will perform construction staking including setting benchmarks, control points, and staking layout of project features. We assume up to four half-day visits with equipment and expenses. 3. Record drawings: We will provide record drawings with locations and elevations of all project features. The record drawings will include complete bathymetric and topographic survey data collected by Barr. This survey will also be used to determine pay quantities for dredged material removal and disposal. These drawings will also serve as a reference point for future projects. As an alternative, the Contractor could perform the post-construction survey. Task 11: Operations and maintenance (O & M) plan Barr will develop a concise O & M plan detailing all of the city’s infrastructure from Old Dutch Pond (located in Simms Park in City of New Hope) to Gaulke Pond. The manual will list relevant elevations, action \\barr.com\Administration\Business Units\WR\Proposals\2020\P072.20 City of Crystal Gaulke Flood Study & Lift\Scope\Gaulke Pond Work Order_v5 - final.docx Page 8 of 9 Ver. 02-24-20 Last Reviewed: 02-24-20 levels, and permissible flow rates to guide city staff in operation of their system. The O & M plan will incorporate the water level drawdown plan for Gaulke Pond, as approved by the MDNR. Task 12: Project management We will review schedule and budget, and prepare and send project email updates on a bi-weekly (i.e., every two weeks) basis during construction, and as needed during feasibility and design, that briefly summarize: 1. Work completed since the previous updates. 2. Work anticipated to be completed in the next two weeks. 3. Information, data or actions we need from the City or others. III. Deliverables Barr will provide the City with the following deliverables during the proposed work: 1. Draft and final evaluation reports 2. 50%, 90% & 100% construction drawings and engineers opinion of probable cost 3. 90% & 100% specifications 4. Record drawings, including post-construction survey data 5. Ten meetings, 2 City Council work sessions, 2 project meetings, SCWMC commission meeting, permitting pre-application agency meeting, City of Crystal/New Hope meeting, public open-house, pre-bid meeting, and pre-construction meeting. 6. Bi-weekly project email updates during construction, as needed during feasibility and design. IV. Schedule We will complete the tasks and milestones outlined in the proposed work according to the following anticipated schedule: Task Description Estimated Schedule - Notice to Proceed April 2020 1 Collect and review existing conditions data May 2020 2 Survey May – July 2020 3 Perform hydraulic evaluation of the existing storm sewer system June – August 2020 4 Perform hydraulic evaluation of the proposed modifications to Gaulke Pond, Brownwood Pond, and the Gaulke Pond lift station September – October 2020 5 Sediment Sampling July – September 2020 6 Investigate funding options September 2020 7 Prepare evaluation report/feasibility study June – October 2020 8 Permitting May 2020 – February 2021 9 Design Services November 2020 – February 2021 10 Bidding and Construction Services  Council approval and project bidding February – March 2021  Construct Gaulke Pond lift station Summer 2021  Construction of Gaulke Pond expansion October- December 2021  Construction of Brownwood Pond expansion January 2022 or later 11 Operations and maintenance (O & M) plan Post-Construction - 2022 We will coordinate with you during the project regarding the schedule, as the schedule depends on receiving the MDNR permits and SCWMC approvals. \\barr.com\Administration\Business Units\WR\Proposals\2020\P072.20 City of Crystal Gaulke Flood Study & Lift\Scope\Gaulke Pond Work Order_v5 - final.docx Page 9 of 9 Ver. 02-24-20 Last Reviewed: 02-24-20 V. Summary of Costs The table below shows Barr’s proposed budget to perform the proposed work. Actual costs may be greater or less than shown for individual tasks; however, we will not exceed the overall budget without your authorization. Task Description Estimated Cost 1 Collect and review existing conditions data $ 5,900.00 2 Survey $ 5,200.00 3 Perform hydraulic evaluation of the existing storm sewer system $ 28,000.00 4 Perform hydraulic evaluation of the proposed modifications to Gaulke Pond, Brownwood Pond, and the Gaulke Pond lift station $ 19,200.00 5 Sediment Sampling $ 5,100.00 6 Investigate funding options $ 4,000.00 7 Prepare evaluation report/feasibility study $ 28,700.00 8 Permitting $ 24,200.00 9 Design Services $ 70,000.00 10 Bidding and Construction Services $ 46,000.00 11 Operations and maintenance (O & M) plan $ 2,600.00 12 Project management $ 11,800.00 Total $ 250,700.00 For the services referenced above, you will pay us on a time and expenses basis not to exceed $250,700 without prior approval, in accordance with the referenced Master Service Agreement. The scope of services assumes that Barr will provide all of the services outlined in Section II. The following tasks are not included in this scope. but could be provided on a time and expenses basis if necessary: additional services not listed in the project scope of services, including wetland mitigation services and obtaining City permits. ACCEPTED AND AGREED TO: BARR ENGINEERING CO. City of Crystal By: By: Title: Vice President Title: Date: April 1, 2020 Date: ROBBINSDALE NEW HOPE CRYSTAL CRYSTAL 100 100 45679 4567102 4567156 45678 4567156 45679 456781 4567156 47t h Ave N 36thAve NDouglas DrQuebec AveVera Cruz Ave N3 9 t hAve N 36th Ave Welcome Ave41st Ave N Winnetka Ave36 1/2Cir 41stAve N XylonAveLouisiana Ave4 5 th A v e N 38thAve NAdair Ave N37th AveDouglasDr36th Ave NNevada AveBrunswick AveYates Ave NZane Ave N37th Ave NFloridaAveKentucky AveXylon AveMemory LaVera Cruz Ave NAdair Ave41st Ave 40thAve 38th Ave Colorado Ave38thAve N 40th Ave N 47th Ave 48th Ave 48thCir 41st Ave N 39th Ave N 40th Ave NFlorida Ave4 6 th A v e 42nd Ave N 38th Ave N 45th Pl 39th Ave N Rockford Rd 40t h Ave Yates AveXenia AveWelcome AveXenia Ave N3 7 th A v e 44th Ave N WelcomeAve NMaryland AveEdgewood AveUnity Ave NGeorgia AveXenia Ave3 9 t h A v e ToledoAve N39th Ave NLouisiana AveMaryland Ave42nd Ave 3 8 t h A v e Utah Ave45th Ave NorthwoodPkwy Oregon AveOregon AveM e m o r yPond B r o w n w o o dPond H a g e r m e i s t e rPond G a u l k ePond Barr Footer: ArcGIS 10.7.1, 2020-04-01 14:14 File: I:\Client\City_of_Crystal\Work_Orders\23271500_Gaulke_Pond_Dredging\Users\RSM\Gaulke-Brownwood Modeling Detail.mxd User: rsm H&H MODEL DETAILGaulke-Brow nwood Street Flooding Analysis,Lift Station, and Pond Dredging ProjectCity of C r ystal 0 500 1,000 1,500 Feet !;N Model Detail Advanced, 2D m odel to the level of ca tch basins to understand flooding Existing (coarser model resolution), The existing 1D model from the 2012 LOMR w ill be u se d with minimal modifications