Township Council Meeting — Packet

Gregory Avenue and Lowell Avenue Safe Routes to School Preliminary Engineering, Final Design, and Construction Engineering Services Page 7 Preliminary Engineering – Scope of Work Based on the conceptual design per the grant application, the West Orange improvements include three retaining walls and one stormwater management best management practice (BMP) site: • Stormwater Lowell Avenue Retaining Wall, Lawrence Avenue to Helen Avenue • Lowell Avenue Retaining Wall, North of Helen Avenue • Gregory Avenue Retaining Wall • Stormwater Management BMP To facilitate the new sidewalk, the Lowell Avenue retaining walls between Lawrence Ave to Helen Ave and north of Helen Avenue require fill to be placed toward private residences. As a result, borings are expected to be required to assess wall stability, potential settlement, and the potential imposed lateral pressures on the adjacent structures. Lightweight fill may be considered to mitigate potential settlement and potential risk to adjacent structures. The retaining wall at Gregory Avenue appears to be less than three (3) feet for the entire length of the wall. As a result, STV does not anticipated the need for borings along the full length of the wall as the final wall is assumed to be a landscaping wall where a regraded slope at 2H:1V or flatter is not possible. a. Develop Subsurface Exploration Program (3096) STV will review available existing geotechnical and geologic information and prepare recommendations for the subsurface investigation program based on the finalized limits and cross sections of the retaining walls and BMP. STV will prepare and submit a Subsurface Exploration Plan to the NJDOT Geotechnical and Engineering Geology SMEs for review and approval during the PE phase. STV assumes that a Preliminary Geotechnical Engineering Report will not be required. b. Review & Approve Subsurface Exploration Plan (3098) STV will address review comments and update the subsurface exploration program and bid documents. 7. RIGHT OF WAY (ROW) AND EASEMENTS Although ROW acquisition is not anticipated, it is estimated that there will be numerous temporary construction easements, as well as some permanent easements, required to execute the proposed improvements. It is not anticipated that there will be any right-of-way acquisitions. However, a full comprehensive evaluation will be performed as part of the

ements, required to execute the proposed improvements. It is not anticipated that there will be any right-of-way acquisitions. However, a full comprehensive evaluation will be performed as part of the preliminary survey and engineering related design services previously noted, to reveal all possibilities of impact. Consideration will be given to minimize impacts to the greatest extent possible as part of the preliminary engineering design, including but not limited to the feasibility of reducing the widths of the cartway or driving lanes, originally proposed sidewalks, the realignment of the existing curb-lines and various other means. a. Conduct Initial Title Search (3028) STV’s subconsultant Amercom will be responsible for conducting the title searches for affected parcels. STV will review the deed/title searches. It is assumed there will be fifteen (15) properties. b. Prepare & Submit ROW Impact Matrix & ROW Impact Plans Submission (3110) This task entails the preparation of the ROW/Easement Impact Plan (Preliminary General Property Parcel Maps (GPPMs)) to accurately depict all ROW/Easement and private property impacts required for the proposed improvements and the ROW Impact Matrix. The plan will indicate the block and lot numbers along with the owner’s names, the acquisition area and/or permanent and temporary easement areas that will be required for each parcel. STV, RC, and Township will coordinate with property owners on impacts