08-10-2020-R - Laserfiche WebLink

Home Browse Search

Understanding and Approach �o�� The field survey will include the following efforts: Our team will review the project in the context of RCWD • Research of county information(section,maps,plats,etc.) permit requirements,including stormwater management • Research of MnDOT information(such as geodetic monuments) and erosion and sediment control.We will analyze the • Submit Gopher State One Call tickets for field markings and maps along all newly constructed impervious area footprint to determine streets,except for the reclaim portions locations and sizes for best management practices.We • Preparing/calculations for field staff(property corner search points,survey will assemble existing and proposed conditions hydraulic collector job file,etc.) models to size proposed storm sewer improvements, • Establishing project control based on Ramsey County coordinate system, determine the potential increase in stormwater discharge NAD 83(2011 Adj.)with elevations based on NAVD 88 rates at key receiving locations, and determine the resulting • Field locations of existing conditions,utilities,property corners,etc. size and efficacy of infiltration systems. • Topographic limits for reclaim areas will be curb line to curb line and location and rim elevation of utility structures only Soils in the area appear to be conducive to infiltration. • Topographic limits for full reconstruction areas will be right-of-way to Therefore,it will be necessary to review the geotechnical right-of-way; property corners will not be located within reclaim areas report provided by the city for any potential issues this and GIS lines will be used to show approximate right-of-way lines may cause. • Complete sanitary and storm structure inventories on existing structures within full reconstruction areas only Task 5: Project Plans • Complete right-of-way determination in full reconstruction areas only Final design and construction plans will be completed in • Complete a base map of the project area per RFP requirements AutoCAD Civil 3D and developed in coordination with city An electronic base map will be created and submitted to the staff.Major design components will include city for review prior to initiating design work. • Roadway alignment and width • Profiles and intersection layout with curb and gutter elevations in the Task 4: Design Analysis reconstruction areas Bolton&Menk will evaluate the geotechnical report • Cross sections at 50-foot intervals,driveways,and critical design locations provided by the city to deliver a project design consistent in the reconstruction areas with the report recommendations. • Existing location and elevations of all existing utilities identified in the field • Storm sewer sizing and design;this includes discussions with governing Bolton&Menk will review the proposed street agencies and city staff on the proper stormwater management plan for the improvements,watermain replacement, sanitary sewer developed area rehabilitation,and storm sewer extension laid out in the • Identification of necessary replacement and/or relocation of private utilities feasibility report provided by the city.We will review (including electric,gas,telephone,cable TV,etc.) these items with the city's initial scope in mind,but will • Coordination with public works staff to review sanitary sewer for locations also apply our expertise to determine if there should be an of replacements, repairs,and lining extension or change in scope,or a change in methods to • Coordination with public works staff on watermain improvements and achieve the same outcome.This will be especially critical replacements when evaluating trenchless rehabilitation options for the • Location of any signing and striping city's sanitary sewer system. • Preparation of the Stormwater Pollution Prevention Plan(SWPPP), including plan sheets and specifications Bolton&Menk will prepare a technical memorandum • Preparation of traffic control and construction phasing plan with an after our detailed review of the feasibility report with our emphasis on neighborhood access during construction,especially at the recommendations on changes to the project scope and dead-end blocks methods of construction,while keeping project costs in Preparation of statement of estimated quantities, including street,utilities, mind as this is critical to the city council and the public.We and miscellaneous construction items,all consistent with the city's will review this memo with city staff to determine the final standard specifications and specifically,the city's method of measurement scope of the project and proceed with the assurance we are and payment building a project that will last. Stormwater management and erosion control design will Prior to final design,private utilities within the project areas meet RCWD permitting requirements.Upon competition will be identified.We will identify utilities that may pose of final plans,we will submit all required information to risks to the project schedule and/or budget and coordinate RCWD for approval. with the appropriate utility owners to protect or relocate their utilities if needed.We will conduct one private utility coordination meeting during the early stages of design. 2021 Hazelnut Park/Glenpaul Neighborhood Street and Utility Improvements I City of Arden Hills, Minnesota