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HomeMy WebLinkAboutAECOM/South Park Area Basin Retrofit Design��rO� August 28, 2015 Mr. James Rabe Civil Engineering Supervisor City of Oshkosh 215 Church Ave. PO Box 1130 Oshkosh, WI 54903-1130 AECOM 414.944.6080 tel 1555 N RiverCenter Drive, Suite 214 414.944.6081 fax Milwaukee, WI 53212 __.._---- - RECEIVED _-_� SEP -12015 DEPT OF PU WIS ONSIN pSHK�sH, Subject: Proposal for South Park Area Basin Retrofit Design Services in Oshkosh, Wisconsin AECOM Proposal No. OPP-384742 Dear Mr. Rabe, AECOM Technical Services, Inc. (AECOM) is pleased to present this proposal for professional civil engineering services involved with the surveying, permitting, construction drawings and technical specifications for the South Park Area Basin Retrofit Design Services project in Oshkosh, Wisconsin. As discussed during a meeting befinreen AECOM and City of Oshkosh (City) personnel on June 18, 2015, the scope of work presented below represents the required tasks to complete the project. Project Understanding The scope of work that follows has been developed based on our understanding of the project site and is based on several discussions with City staff. The proposed scope of work includes: A. Topographic survey of the project area including underground and overhead utilities (including a minimum of the next manhole upstream and downstream of the survey boundary line for all utilities), buildings, trees, street rights-of-way, existing park features and a bathymetric survey of the existing basins; B. Wetland delineation, reporting, and coordination with Wisconsin Department of Natural Resources (WDNR) and United States Army Corps of Engineers (USACE); C. Geotechnical investigation, analysis, and reporting to support the design and production of construction drawings; D. Hydrologic and Hydraulic analysis to support proposed design features to improve water quality and reduce downstream flooding as summarized in the May 2014 South Park Master Plan; E. Coordination with City of Oshkosh Engineering Division for a structural rehabilitation plan for the historic bridge over the west basin and coordination with the Parks Department on proposed landscaping features; F. Sediment sampling, evaluation, disposal plan options and permitting for the proposed dredging of the South Park Area Basins; G. Prepare structural analysis, details and technical specifications for proposed spillway structures, outFalls, reinforced concrete aprons and wing-walls; H. Prepare construction documents for the South Park Area Basin Retrofit Design and associated features. The documents include construction drawings, technical specifications, cost estimate, City proposal master spreadsheet, and bidding assistance; South Park Area Basin ReUnfit Design Proposal-Final Scope-&28-15.docx AECOM I. Preparation and coordination with federal, state, and local agencies to obtain the necessary permits for the construction of the project; J. Project management including coordination with City staff, attending in person and web- based plan review and permitting meetings. Scope of Services Task 1— Topographic and Bathymetric Surveys 1. Collect topographic and baythmetric survey information to aid in the construction of the basin retrofit components. A. Utilize NAVD88 for the vertical datum and the Winnebago County Coordinate System for the horizontal datum. B. The collected survey data will supplement the existing base-map that was completed in AutoCAD 2011 by AECOM in April of 2014 for the preliminary design needs study. C. The project area to be surveyed is illustrated in Figure 1. The terrestrial survey shall include the following: i. Contact Digger's Hotline to have utilities marked within the project areas outlined above. ii. Locate underground and overhead utilities. iii. Obtain rim and invert elevations of sanitary and storm sewer manholes and catch basins. iv. Measure catch basin size, document grate type and document sanitary and storm sewer main sizes. Survey will include a minimum of one manhole upstream and downstream of the survey boundary line for all utilities). v. Note any deficiencies or damage to the manholes, note offset direction of manhole and provide digital photography of interior of manholes. Photos to include not only the interior of the manhole, but also the condition of adjusting rings. vi. Sanitary sewer, storm sewer and water main structures outside the limits of the survey, but connected to structures within the survey limits shall be located, measured and documented to determine potential conflicts in line and grade of proposed utility improvements. vii. Locate the following other features within the survey limits to provide a digital terrain model: Including but not limited to centerline of streets, curb and gutter, sidewalks, driveway aprons, pavements, buildings, signs, trees, concrete pavement joints, cracks in the pavement, utilities marked through Diggers Hotline and property monuments. D. The Bathymetric Survey shall include the following: i. Supplement existing bathymetric survey (Rettler 2013) with an additional information L:Uibrary�DepflWAT_RES\Marketing\PROPOSALS\Oshkosh�South Park Design Services\South Park Area Basin Retrofit Design Proposal-Final Scope-8-28-15.docx AECOM on sediment depth and current top of sediment. ii. Normal water level (NWL) of each basin iii. AECOM will utilize a 2-person survey crew to perform manual soundings within the 3 basins at the project site. Field-work will include tie-in to a National Geodetic Survey (NGS) benchmark on the NAVD88 datum and will be performed from a motorized 12-foot jonboat. iv. Two (2) types of ineasurements will be conducted from the jonboat. a. The first type of ineasurement will utilize a graduated survey pole or similar device equipped with an 8-inch diameter circular disk to determine the depth of water (water surface to the top of soft bottom) to provide spot check depth information. b. The second type of ineasurement will utilize a pole or threaded rod manually pushed into the basin bottom. The extended pole length below water level will be recorded and will be used as an approximation of bottom of loose sediment. Trimble RTK survey equipment will be used to record the position of each sounding. v. After data collection is complete, the field data will be imported to AutoCAD and each set of data will be interpolated into a triangulated irregular network (TIN) using Civil 3D. One (1)-foot contours will be interpolated for each set of data, for each of the 3 basins. Following generation of the contours, an isopach map will be generated showing the estimated thickness of sediment throughout the basin. The isopach map will depict contours of equal sediment thickness. The isopach map will also include a volume quantity estimate of sediment for each basin. vi. Basin survey and data collection will be coordinated with environmental sediment sampling efforts. Task 2- Wetland Delineation and Reporting 2. Perform wetland delineation and reporting. A. Wetland Investigation A background data search will be conducted to establish the historic and existing wetland conditions at the project site. The documents used to characterize the subject property may include: i. U.S. Geological Survey (USGS) 7.5-Minute Topographic Quadrangle Maps. ii. Aerial Photographs (multiple years if available). iii. Wisconsin Wetland Inventory (WWI) Maps, a. http://dnrmaps.wi.qov/SUViewer.html?Viewer-SWDV&runWorkflow=Wetland iv. County Soil Survey & County Hydric Soils List for Winnebago County, Wisconsin (USDA/NRCS), (httq://websoilsurvev.nres.usda.qov/app/) L:Vibrary�Dept\WAT_RES\Marketing\PROPOSALS\Oshkosh�South Park Design Services�South Park Area Basin ReVofit Design Proposal-Final Scope-8-28-15.docx AECOM v. Antecedent precipitation data' (rainfall data 3 months prior to site visit) Pertinent background data will be summarized in the wetland delineation report. B. Wetland Delineation The wetland delineation will be conducted by an AECOM wetland scientist to assess the three mandatory wetland criteria as outlined in the USACE Wetland Delineation Manual (Environmental Laboratory, 1987) and the Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Northcentral and Northeast Region (Version 2.0, January 2012). The three wetland criteria are vegetation, soils, and hydrology. ii. A vegetation survey will be conducted to determine the dominant plant species for each vegetation stratum. The hydrophytic vegetation will be assessed through on- site identification of plants in the various distinct plant communities. A list of the dominant species present in each community will be determined and the USACE 2014 National Wetland Plant List, Version 3.2z will be used to determine the wetland indicator status of each dominant plant species. iii. Hydric soils will be assessed by coring the soil profile with a hand-operated sampling tube and lead-filled rubber mallet. Soil development will be described using the U.S. Department of Agriculture (USDA) Soil Classification System. Soils will be described by soil color (Munsell� Soil Color Chart), soil texture, organic content, consistency, moisture content, and special soil characteristics, such as mottling and gleyed conditions. The standard reference, Field Indicators of Hydric Soils in the United States, Version 7.0 (USDA/NRCS 2010), will be used to determine if the soils are considered hydric. iv. The hydrologic conditions will be visually assessed to determine if there is evidence that the site is subject to flooding or ponding, evidence that the soil is saturated currently or was saturated recently, presence of landscape and vegetation characteristics that indicate contemporary rather than historical wet conditions, or presence of standing surface water or groundwater. Field observations and conclusions must consider antecedent precipitation conditions. A summary of antecedent precipitation conditions (three months prior to site visit) will be evaluated. This information will be compared with background data to estimate the long-term and seasonal hydrology. v. Information gathered in the field will be recorded on USACE's Data Forms. In addition, each wetland area will be classified in accordance with the Wisconsin Wetland Inventory Map wetland classification system. Representative photographs will be taken of each wetland delineated. vi. Identified waterways within the project area (not including the existing basins) will � Sprecher, Steven W., Wame, Andrew G., April 2000. Accessing and Using Meteorological Data to Evaluate WeUand Hydrology, 96 p. (ERDC/EL ; TR-WRAP-00-1) z Lichvar, R.W., M. Buttervvick, N.C. Melvin, and W.N. Kirchner. 2014. The National Wetland Plant List: 2014 Update of WeUand Ratings. Phytoneuron 2014-41: 1-42 (htt�://wetland plants.usace.armv.mil) L:�ibrary�Dept\WAT_RES\Marketing\PROPOSALS\Oshkosh\South Park Design Services�South Park Area Basin Retrofit Design Proposal-Final Scope-8-28-15.docx AECOM be characterized by recording width, substrate, bank height, and water depth of the waterway at the time of the investigation. vii. Delineated wetland and waterway boundaries will be surveyed in coordination with other survey efforts performed in Task 1. Boundary information will be downloaded into a GIS map project, which will be used to create figures for the wetland delineation report. viii. A wetland delineation report will be prepared to document the findings of the background information review, describe the field procedures, and provide the results of the field investigation and evaluation. The report will include pertinent background material, maps showing any delineated wetland boundaries and waterways, photographs, USACE Data Forms, and any additional information as required by the Guidance for Submitta! of Delineation Reports to the St. Paul District USACE and the WDNR (March 2015). C. Regulatory Agency Coordination i. Prior to submitting any wetland permit package, it may be necessary to have a site visit with the regulatory agencies to confirm the delineated wetland boundaries and allow the agencies to see the existing site conditions. If necessary, AECOM will coordinate with the WDNR and USACE staff for the site visit. ii. If needed, AECOM will request a jurisdictional determination from the USACE on whether or not the wetland is considered an isolated wetland. If it is deemed an isolated wetland, only permits from the WDNR are required for wetland impacts. If it is deemed a non-isolated wetland, then permits from both the USACE and WDNR are required for wetland impacts. iii. If necessary (based on wetland impacts), a pre-application meeting is required for individual permit submittals. A pre-application meeting checklist is provided by WDNR and will be utilized prior to submittal of information to the WDNR and USACE. Items to be discussed during this meeting and suggestions on materials/data to be available for the meeting are included in the checklist. The required information will be submitted to the regulatory agencies prior to the pre- application meeting. If it can be arranged, the USACE will be invited to attend the pre-application meeting. iv. Wetland mitigation is required with all individual permits. Types of compensatory wetland mitigation include Wetland Mitigation Banking, In-Lieu Fee Program, and Permitee Responsible Mitigation. The new Wisconsin regulations identify participation in mitigation banking and in—lieu fee programs as the preferred avenues to satisfying compensatory mitigation requirements. The Mitigation Summary Worksheet will be filled out and submitted to the WDNR and USACE prior to the pre-application meeting. Task 3— Geotechnical Investigation and Reporting 3. Perform geotechnical investigation and analysis for the production of construction drawings and technical specifications. A. PerForm a subsurface investigation at the project site including: L:Vibrary�Dept1WAT_RES\Marketing\PROPOSALS\Oshkosh�South Park Design Services�South Park Area Basin ReVofit Design Proposal-Final Scope-8-28-15.docx AECOM i. AECOM will Subcontract with Professional Service Industries, Inc. (PSI) to perform subsurFace drilling with oversight provided by AECOM. ii. Clear utilities through Digger's Hotline prior to drilling (performed by drilling subcontractor). iii. AECOM will locate 8 soil borings across the project site located at potential sewer consolidation locations, existing or proposed spillway, proposed berm, and basin expansion areas. Borings will be located using GPS and staked or otherwise marked and an elevation will be provided from GPS. (See Figure 1.) iv. Mobilize an ATV-mounted drill rig to the site. a. Borings will extend to a minimum depth of 25 feet below the current site grades b. Temporary PVC standpipe monitoring wells will be installed in two of the borings to evaluate the long term groundwater level at the site. ■ Water levels will be monitored bi-weekly for 4 months v. Obtain representative soil samples to the termination depth of the borings. Soil samples will be collected at 2.5 foot intervals for the full depth of all the borings. In general, standard penetration test (SPT) samples will be obtained in accordance with applicable ASTM standards. AECOM may obtain some undisturbed soil samples in cohesive soils using thin-walled Shelby tubes in general accordance with applicable ASTM standards. If Solid Waste and/or Urban Fill is encountered additional samples will be collected for analytical laboratory analysis for landfill disposal permit application. vi. Observe groundwater conditions during drilling and prepare field logs documenting drilling methods, SPT results, and ongoing groundwater observations. vii. Perform in-situ falling head hydraulic conductivity testing in the two wells to determine the in-situ permeability of the soils below the bottom of the basins. viii. Abandon the borings and monitoring wells in accordance with the Wisconsin Department of Natural Resources (WDNR) NR141 requirements after completion of the long term groundwater monitoring. ix. Review and classify the retained samples in accordance with the Unified Soil Classification System (USCS) and United States Department of Agriculture (USDA) textural classification system. Routine strength, classification, and index tests will be performed on representative samples obtained from the borings, as necessary, and boring logs prepared. Our laboratory testing program also includes sieve and hydrometer tests, Atterberg Limits tests, hydraulic conductivity, and Modified Proctor tests to assess on-site soils for use as an in-situ clay liner or re-compacted clay liner for the proposed basins. x. Analyze the soil and groundwater conditions encountered in the borings with respect to the proposed basin, and storm sewer construction. B. Prepare a geotechnical data report under the direction of a professional engineer registered in the state of Wisconsin. The geotechnical report will describe the subsurface exploration program and provide geologic L:Uibrary�Dept\WAT_RES1Marketing\PROPOSALS\Oshkosh�South Park Design Services�South Park Area Basin Retrofit Design Proposal-Final Scope-8-28-15.docx AECOM characterizations of the soil and groundwater conditions encountered in the borings and those expected during construction. Perform the following geotechnical evaluations based on the subsurface conditions encountered in the borings: i. Evaluate the suitability of the native soils within the excavation for use as an in-situ low permeability liner and berm construction. We will also evaluate the on-site soils for use as a re-compacted clay liner including placement and compaction requirements in accordance with WDNR Technical Standard 1001. ii. Recommend suitable cut slopes based on the properties of the on-site soils. iii. Provide recommendations related to the installation of the basins based on the observed conditions at the site. iv. Provide a Soil Management Plan for soil disposal if solid waste and/or urban fill is encountered. The Soil Management Plan will be included in the Project Bidding Documents. Task 4— Storm Water Modeling and Design 4. Perform water quantity and quality analyses for the purpose of evaluating design alternatives. Storm water management goals include improving water quality by improving total suspended solids removal and increasing the detention capacity within the project site to reduce downstream flooding. A. PerForm a hydrologic and hydraulic analysis using the XP-SWMM computer program to evaluate the proposed design features identified in the May 2014 City of Oshkosh South Park Mater Plan and through this design project. AECOM will utilize the existing Stringham Watershed XP-SWMM model. i. AECOM will incorporate the proposed basin geometry including soil berms, spillways and other storm sewer design modifications into the proposed conditions model. The iterative design process will be coordinated with the City to maximize the storm water detention volume while limiting the impact on landscape features within the project site. ii. AECOM will run the XP-SWMM model during the critical duration for the 1-, 2-, 10-, 50- and 100-year design storm events and the June 12-13 2008 storm event. iii. Provide flooding depth and duration and operational characteristics (stage-storage, drawdown, etc) for the park area and for select points within the watershed in the area of focus for each design storm and for the June 12-13, 2008 storm event. iv. Prepare color figures showing the maximum extent of flooding during each storm event for the critical duration. The figures shall be color coded to show the depth of flooding (typical ranges utilized are: 0.01'- 0.25', 0.25'-0.5', 0.5'-1.0', and greater than 1'). B. Update the WinSLAMM analysis of the basin to determine pollution removal from the detention facility. The analysis shall be consistent with the work L:Uibrary�Dept\WAT_RES\Marketi�g�PROPOSALS\Oshkosh\South Park Design Services\South Paric Area Basin Retrofit Design Proposal-Final Scope-8-28-15.docx AECOM perFormed during the ciry wide pollution control analysis. Task 5— Historic Bridge Evaluation and Rehabilitation 5. Evaluate the historic bridge crossing the west basin and develop a structural rehabilitation plan. A. Review and research historic documentation. B. Conduct a site visit and structural evaluation of the historic bridge that crosses the west basin. Evaluate the deck, railings, wing-walls, etc. C. Develop a rehabilitation design report that improves the physical structural of the bridge that is in keeping with its historic nature. D. Incorporate the rehabilitation efforts into the design documents. Task 6— Sediment Sampling and Disposal Assistance 6. Conduct basin sediment sampling and evaluate sediment disposal options and permitting requirements. A. Review drainage area/land use to basins. Evaluate and compare to the requirements of Wisconsin Administrative Code Chapter NR 528 Management of Accumulated Sediment from Storm Water Management Structures. B. Coordinate with survey efforts and test sediment. (Currently assumes that cumulative surface water is less than 4 acres in size and requires 4 unique sediment samples.) Test parameters and tests to be conducted per table C-1 of the WDNR technical guidance document Management ofAccumulated Sediment from Storm Water Structures. Also includes the Toxicity Characteristics Leaching Procedure (TCLP) analysis. C. Review analytical results and determine end use options. D. Coordinate for end use disposal. If sediment quality is acceptable for disposal in a non-landfill location, assist the City with completing the Accumulated Sediment End Use Certification form 4400-248. If sediment requires landfill disposal, assist with landfill disposal permits. Prepare a Sediment Management Plan to be incorporated into the Project Bidding Documents. Task 7— Structural Analysis and Design 7. Perform structural analysis and design for the proposed hydraulic structures listed below. The design will include structural calculations, structural details and technical specifications incorporated into the construction drawings discussed in Task 8. i. Proposed spillway structures, reinforced concrete aprons and wingwalls. ii. Manhole structures when consolidating storm sewers within the park prior to discharging to the basins. L:Uibrary�Dept1WAT_RES\Marketing\PROPOSALS\Oshkosh�South Park Design Services�.South Park Area Basin Retrofit Design Proposal-Final Scope-8-28-15.docx , AECOM g Task 8 — Construction Documents 8. Prepare Construction Documents including construction drawings, technical specifications, bid documents, cost estimate and provide bidding assistance for the South Park Area Basin Retrofit Design and associated features. A. All full size drawing sheets shall be ANSI D(22x34) in size and shall be scalable with an Engineer's Scale at half size. At a minimum include the following plan pages: i. Cover Sheet. ii. Construction Notes. iii. Construction Details not covered in City Standard Specifications. iv. Grading Plan. v. Erosion Control Plan. vi. Demolition and Removals Plan. vii. Water Diversion/Management Plan. viii. Staging/Equipment Storage and Dewatering Plan. ix. Landscaping and Restoration Plan. x. Basin Cross Section Plan. xi. Historic Bridge Rehabilitation Plan. xii. Structural plans and details for up to six (6) aprons and wingwalls. xiii. Structural plans and details for one (1) outlet structure at Ohio Street. xiv. Structural plans and details for up to finro (2) junction manhole structures. xv. Structural plans and details for finro (2) spillway structures. B. Complete "Proposal Master" Spreadsheet. C. AECOM will prepare Bid Documents utilizing the City of Oshkosh format and following City CAD standards. The City will compile the sections from the Consultant and assemble the Contract Book. D. Prepare Detailed Construction Cost Estimate at following design stages. i. 60% ii. 90% iii. Final E. Develop layout for up to a maximum of three (3) Information and Educational Sign L:Vibrary�Dept\WAT_RES\MarketingWROPOSALS\Oshkosh�South Park Design Services\South Park Area Basin Retrofit Design Proposal-Final Scope-8-28-15.docx AECOM 10 for placement at site post-construction. Coordinate with layouts developed for other basins locations in the City of Oshkosh. F. Bidding Assistance. i. AECOM will provide assistance to the City during the construction bidding process. Budget includes up to 24 hours of Design Engineer time to assist with answering questions during the bidding process. ii. Develop construction documents to incorporate Addenda created during the Bidding process. Task 9 - Permitting 9. Prepare Construction Permits for South Park Area basin retrofit. A. Permitting. i. Prepare DNR Water Resources Application for Project Permits (Storm water NOI) with Construction Site Storm Water Runoff General Permit Notice of Intent Application Checklist. a. Conduct an Endangered or Threatened Resources (ER) Review. 1. The WDNR Natural Heritage Inventory (NHI) Database will be queried for any documented ER occurrences within the project area. 2. An online form will be completed and submitted to the WDNR. 3. The ER Review is divided into five sections: a) Location and brief description of the proposed project, b) Endangered resources recorded from within the project area and/or surrounding area, c) Follow-up actions, including those that need to be taken to comply with state and federal endangered species laws, d) Next Steps, e) Consultation with the WDNR and/or US Fish and Wildlife Service (USFWS) as necessary if follow-up actions are indicated in the WDNR ER Review Letter. (Note the ER Review does not exempt the project from any requirements of state and federal endangered species laws. Rather, it is to be used as additional information to ensure that the project complies with both state and federal endangered species regulations). ii. Prepare a written Storm Water Management and Erosion and Sediment Control Plan report in accordance with City and WDNR requirements. iii. WDNR General or Individual Permit Application (type is dependent on acres of impact) for potential disturbance of wetlands, if necessary. L:Vibrary�Dept1WAT_RES\Marketing\PROPOSALS\Oshkosh�South Park Design Services�South Park Area Basin Retrofit Design Proposal-Final Scope-8-28-15.docx , AECOM 11 iv. U.S. Army Corps of Engineers Section 404 Permit if necessary Task 10 — Project Management and Meetings 10. Project Management and Meetings A. Project Management i. Coordination with internal and City staff. ii. Scheduling and updates. iii. Budget reporting for review meetings. B. Meetings: i. Design services Kick-Off meeting and Concept Plan Development meeting with City staff (Engineering/Parks) and Rettler Corporation. ii. Preliminary review meeting after survey completed. iii. 30% plan review meeting. iv. Pre-application meeting with WDNR, U.S. Army Corps of Engineers and City Staff if necessary. v. 60% plan review meeting. vi. 90% plan review meeting. vii. Neighbofiood informational meeting (to be scheduled in the evening). viii. 12 hours is budgeted for on-line web-based meetings. ix. Park Advisory Board Meeting if necessary. C. City of Oshkosh: In addition to attending meetings and providing general direction and support for the completion of this project, the City of Oshkosh will perform the following tasks: 1. Pay permit application fees to appropriate state and/or federal agencies. 2. Assemble the Contract Book Sections from Consultant into a complete book. 3. Upload the Contract Books and Plans for electronic bidding. 4. Advertise the bid, conduct the bid opening, and recommend the award of the bid. 5. The City of Oshkosh will also provide AECOM As-built plans of the project area if available. L:Uibrary�Dept\WAT_RES1MarketinglPROPOSALS\Oshkosh�South Park Design Services�South Park Area Basin Retrofit Design Proposal-Final Scope-8-28-15.docx AECOM Project Assumptions and Considerations Wetland Assumptions For the purpose of this Wetland Investigation Scope of Services/Costs, the following assumptions were made: 1. The wetland delineation for the site will include one AECOM wetland scientist for one field day including travel and expenses. iFa 2. The wetland investigation will be conducted during the growing season for the project area (late April to October). 3. The field wetland delineation will be completed within the proposed area of the existing / expanded basins. (See Figure 1). If the field wetland delineation is required to extend beyond the area, additional costs may be necessary to complete the field wetland delineation and are not included in this Scope of Services. 4. No additional wetland boundary survey costs are included in this Scope of Services since a hand-held GPS unit will be used in the field to survey the wetland/upland boundaries and waterway locations. As requested, field GPS data will be collected in Winnebago County Coordinates. 5. Property access will be arranged by the Client prior to mobilizing for the field assessment. 6. The Client will provide access to existing reports, plans, and other information, if available, that may be required to complete this Scope of Services. 7. The Client will designate a representative for the project who will have the authority to transmit instructions, receive information, interpret and define policies, and make decisions with respect to the project. 8. AECOM will provide a draft copy of the delineation report for review and comment to the Client. Review comments from the client will be incorporated in the final versions prior to submittal to the Client and regulatory agencies. This Scope of Services does not include multiple reviews by the Client. Design Considerations 1. Diversion of water and water management during construction to convey flows from the quarry and storm events must be considered. 2. Dewatering of dredged material must be incorporated into design as well as evaluation of the material quality for disposal options. 3. OutFalls should be consolidated if possible to reduce the number and make more aesthetically pleasing. The outFalls, bank treatments, spillways, and other structural features will be evaluated with the Engineering Division and Parks Department. The consolidated outFalls will be analyzed to provide the hydraulic capacity needs of the upstream storm sewers. 4. The historic bridge crossing the west basin must be evaluated, rehabilitated, and remain an integral part of the park features. L:Uibrary�Dept\WAT_RES\Marke6ng\PROPOSALS\Oshkosh\South Park Design Services\South Park Area Basin Retrofit Design Proposal-Final Scope-8-28-15.docx AECOM 5. Coordinate with City of Oshkosh Parks Department on potential impacts to existing and proposed park features including "Memory Trees". 6. Evaluate features that reduce goose access, ingress/egress to the park. 7. Reestablish deeper pools of water in areas of the basins to accommodate improved urban fishery habitat. 8. Consider and incorporate sediment forebays into the design that can be accessed for improved sediment trapping and routine maintenance and sediment removal in the future. 9. Consider features that allow the drawdown of the water for future maintenance/dredging. 10. The following statement made by the WDNR via email regarding permit requirements will remain valid: "Since this pond is not within 500 feet of a navigable waterway, and is not considered a wetland pond, then no permits from my program would be required for you to enlarge it. It may, however, require a permit from the wastewater program if dewatering will occur ". In addition, the spillways will not be considered to require any dam permitting efforts. 11. AECOM will subcontract with Rettler Corporation in accordance with the attached Professional Design Scope of Services dated July 22, 2015 to incorporate shoreline stabilization, overlooks, aeration fountains, decorative pavement plaza spaces, park restoration, and other design aspects that require coordination between the South Park Master Plan and the construction documents. Project Deliverables 1. AutoCAD Civil 3D files and field notes of all survey work completed. 2. AutoCAD Civil 3D files of all design work completed for the project. 3. LandXML export of pre-project and post-project surface models for including with the construction documents. 13 4. Adobe Acrobat Portable Document Format (pd fl files of the construction plans. Separate pdf files shall be created for "full size" and "half size" plan sets. 5. Microsoft Word documents of all Contract Book sections for each construction project. 6. Microsoft Spreadsheets of Cost Estimates 7. ESRI ArcGIS files created or updated for the project, incorporate into city-wide GIS recommendations. 8. XPSWMMTM' model files and encrypted model files for viewing. L:Vibrary�Dept\WAT_RES\MarketinglPROPOSALS\Oshkosh�South Park Design Services�South Park Area Basin ReVofit Design Proposal-Final Scope-8-28-15.docx AECOM Project Schedule The following table summarizes our estimated schedule to complete the scope of services described above. Scheduled Activitv Project Kick-off/Concept Meeting with Parks Department Collect Design Survey Information Wetland Delineation and Reporting Geotechnical Investigation and Reporting Preliminary Review Meeting 30% Plan Submittal 30% Plan Review Meeting WDNR/USACE Pre-application Meeting Draft Permit(s) Submittal 60% Plan Submittal Pre-Final Permit Submittal to City 60% Plan Review Meeting Permit Submittal to WDNR 90% Plan Submittal 90% Plan Review Meeting PSE Submittal Submittal Date Early - September, 2015 September, 2015 Mid - September, 2015 Mid - September, 2015 Late - September, 2015 Mid - November, 2015 Late - November, 2015 Mid - December, 2015 Late - January, 2016 Mid - February, 2016 Mid - February, 2016 Late - February, 2016 Early - March, 2016 Late - April, 2016 Late - April, 2016 Late - May, 2016 Project Fees The attached Table 1 summarizes our estimate of fees to complete the scope of services described above. 14 If changes to the proposed scope of services or services beyond the scope presented in this proposal appear to be necessary, AECOM will consult with the City of Oshkosh and obtain approval prior to initiating the work. Terms and Conditions Services described in this proposal will be performed on a time-and-expense/unit-cost basis. The project services will be performed in accordance with the 2015 Negotiated Fee Schedule and the April 2009 Negotiated Terms and Conditions between AECOM and the City of Oshkosh, which are expressly incorporated into, and are an integral part of, our contract for professional services. Please indicate your acceptance of this proposal by having authorized individuals of the City execute the attached Authorization Form and retum it to our Oshkosh office. If you have any questions regarding the proposed scope of services and corresponding costs, please contact us at your convenience. L:Vibrary�Dept\WAT_RES\Marketing\PROPOSALS\Oshkosh�South Park Design Services�South Park Area Basin Retrofit Design Proposal-Final Scope-8-28-15.docx AECOM Of course, if you wish to discuss the terms, conditions, and provisions of our proposal, we would be pleased to do so. Sincerely, --� / � ( �/ � (' Paul Timm Client Liaison �--------°'� �� f� , !�- �". Patrick Clifford, PE Vice President ,-'"�ji!ii�i'��. ! " -� Paul Drew, PE Project Manager Attachments: Figure 1 — Location Map Table 1 — Project Fees Attachment 1 - Authorization Form Attachment 2 - Fee Schedule Attachment 3— Rettler Corporation — Professional Design Scope of Services (July 22, 2015) L:�ibrary�Dept\WAT_RES\Marketing\PROPOSALS\Oshkosh\South Park Design Services\South Park Area Basin ReVofit Design Proposal-Final Scope-8-28-15.docx 15 . � Authorization August 28, 2015 AECOM 414.944.6080 tel 1555 RiverCenter Drive, Suite 214 414.944.6081 fax Milwaukee, WI 53212 I hereby certify that the necessary provisions have been made to pay the liability which will accrue under this contract. I hereby authorize AECOM to proceed with the scope of work for professional civil engineering services involved with the South Park Area Basin Retrofit Design Services project in Oshkosh, Wisconsin, as described in AECOM's proposal OPP-384742 dated August 28, 2015, with a budget authorization of $299,900 under the general terms and conditions specified in the proposal. �/�.-�4- 5' ( Signa ure Date Mark A Rohloff Print Name City Manager TitlelOrganization - < . t � C � � { -� _ Signature , Date Pamela R. Ubrig Print Name City Clerk Title/Organization ���t���ir��. � Ill �; .r, Lynn A. Lorenson Print Name City Attorney Title/Organization gnature Trena Larson Print Name Director of Finance Title/Organization C't �o'/s— Date q(�� �5 Date Use or disclosure of data contained on this sheet is subjed to fhe restricfion on the first page of this document. L:\Iibrary�Dept\WAT_RESVNarkeGng�PROPOSALS\Oshkosh\South Park Design Services\South Park Area Basin ReVofit Design Proposal-Final Scope-&28-15.docx AECOM I agree to accept invoices from AECOM via e-mail and not postal mail: � Yes Signature: E-mail address: Recipient Mr./Ms.: Return to: AECOM Name: Attn: Chuck Boehm 1555 N RiverCenter Drive, Suite 214 Address: Milwaukee, WI 53212 Phone: 414.944.6080 Fax: 414.944.6081 17 L:\Iibrary�DeprWAT_RESVviarketing�PROPOSALS\Oshkosh\South Park Design Services\South Park Area Basin Retrofit Design Proposal-Final Scope-8-28-15.docx � � r�rT�-■ rr� � � �I ■ _ L ■ � L t_ � � ..�; ��, �., ��„ July 22, 2015 City of Oshkosh South Park Lagoon Redevelopment and Storm Water Management Improvement Professional Design Scope of Services Rettler Corporation 3317 Business Park Drive Stevens Pont, W I 54482 715-341-2633 AECOM, Inc. has been retained by the City of Oshkosh, Wisconsin to provide design and construction engineering services for South Park Lagoon Redevelopment and Storm Water Management improvements. AECOM, Inc. has requested the assistance of Rettler Corporation to provide Landscape Architectural services associated with landscaping, shoreline stabilization, lagoon overlooks, and fountain/aeration for said project. Rettler Corporation proposes to provide the following Scope of Services as a sub consultant to AECOM, Inc. A. Data Collection 1. Obtain base mapping of project limits from AECOM, Inc. in AutoCAD format. 2. Review proposed site budget from the City of Oshkosh and AECOM, Inc. 3. Meet with representatives of the City of Oshkosh, AECOM, Inc., and Rettler Corporation to define project theme and intent as well as specific zones for shoreline stabilization, overlooks, fountains, decorative pavement plaza areas and restoration will be implemented. 4. Meet with representatives of the City of Oshkosh, AECOM, Inc. and Rettler Corporation to define project scope, budget, and maintenance requirements and duration for proposed project. 5. Prepare memorandum and schematic drawings summarizing the results of the data collection phase. B. Preliminary Plans 1. Prepare preliminary plans, details and technical specifications for proposed improvements a) Shoreline Stabilization b) Overlooks — ledge stone, cut quarry stone, etc. c) Fountains — Aesthetic and Aeration d) Decorative Pavement Plaza Spaces — i.e. �stone bridge landings e) Park restoration � � �. r�rTT■ rr� � ' � ' � � ' ' �" � Rettler Corporation � v � v� u����� 3317 Business Park Drive Stevens Pont, WI 54482 715-341-2633 2. Develop preliminary specifications and product cut sheets for specific items and solutions. 3. Attend in person, two (2) meetings and or via telecommunication with AECOM, Inc. to review plans and specifications to date, as well as preliminary cost estimate for improvements. 4. Develop revisions to plan and specification documents. Assist AECOM, Inc. in developing design development drawings for City of Oshkosh Review and Comment. a) Plan view and or section view of proposed improvement. b) SketchUp and or Photoshop software rendering for proposed item. 5. Attend two (2) meeting with the City of Oshkosh and AECOM, Inc. to review the proposed plans. a) Present proposed plan and project with Engineering Department. b) Present proposed plans and project with Advisory Park Board. C. Final Plans Revise plans, specifications, and details based on review comments from the City of Oshkosh and AECOM, Inc. 2. Provide AECOM, Inc. with one (1) copy of the final documents for use in bidding; both hard copy and PDF format. a) Shoreline stabilization method(s) plan and details with specifications b) Lagoon overlooks plans and details with specifications c) Fountain Aeration plan and details with specifications d) Decorative Pavement Plaza Spaces, plans and details with specifications e) Landscape Plan and details, for site restoration with specifications 3. Attend one (1) meeting with the City of Oshkosh and AECOM, Inc. to review the Final Plans and or pre-bid meeting. D. Compensation for Services 1. If AECOM, Inc. changes the Scope of Services after initiation of services, Rettler Corporation has the right to renegotiate the compensation for the charged services. 2. The following services are not being provided by Rettler Corporation and are assumed to be provided by others: a) Construction observation and or onsite management b) Property and/or topographic survey services. c) Geotechnical investigations. � � r� r -r- -r- � r r-� �� � ■��. ■ ■ ���� d� e) f) 9) h) i) 1) k) I) tiu,.,,.�.��„�., Rettler Corporation 3317 Business Park Drive Stevens Pont, WI 54482 715-341-2633 Environmental studies. Storm water management planning. Preparation of any City, State or local permit applications. Grading and erosion control design. Storm sewer, sanitary sewer or potable water design. Structural, electrical, mechanical design. Lighting, signage, site furnishings. Preparation of Construction Bid Documents and technical specifications. Local or State permit or regulatory fees. 3. All governmental fees will be paid directly by the City of Oshkosh. 4. Periodic invoices will be submitted on a 30-day basis. The billing amount will be determined based upon actual hours required to perform the work within the contract amount. E. Contract Agreement South Park Landscape Architectural Services ItemsA — D ................................................$48,723.00 This proposal shall remain firm for a period of ninety (90) days after the date indicated below, as executed by Rettler Corporation. The proposal may be withdrawn or renegotiated after this time. Rettler Corporation Rick Rettler President AECOM, Inc. Representative Date Date