Township Council Meeting — Packet

Proposal for Preliminary Engineering (P.E.) Professional Land Surveying Services NJDOT TAP 2023 – West Orange, Washington Street Corridor Improvement Project Phase 2 Located in the Township of West Orange, Essex County, New Jersey (MFS Proposal No. NJ24060.001R1) 2 August 2024 Page 2 of 4 The project limits are as shown in the below image provided by GPI and outlined in red. ACTIVITY 3015 – PREPARE CONTROL SURVEY REPORT All control establishment activities for the project, including the preparation of control reports shall be in accordance with NJDOT Surveying Manual and Standard Article 44. The horizontal control will be tied to the New Jersey State Plane Coordinate System NAD83 (Grid). The vertical control will be tied to the North American Vertical Datum NAVD 1988. A local project ground datum will be calculated based on the primary survey control. All mapping will be prepared in a Local Project Ground datum. Utilizing GNSS RTN and Leica SmartNet, primary survey control for the project will be established following the specifications provided in the “User Guidelines for Real Time GNSS Positioning”, Version 3.1, dated April 2014 for Class RT1 surveys (Primary Control) having a relative accuracy of 0.01m – 0.02m horizontal and 0.02m – 0.04m vertical at the 95% confidence level. Utilizing the primary survey control stations, a secondary survey traverse baseline will be established originating and closing on the primary control pairs. Benchmarks will be established and staggered between the traverse baseline stations. Differential leveling will be performed to include the secondary traverse baseline stations and benchmarks utilizing the primary control as the reference benchmarks. The horizontal control shall meet or exceed Second Order Class II accuracy standards and the vertical control will meet or exceed Second Order, Class II accuracy standards. A Survey Control Report will be prepared for the primary/secondary survey control. The report will be signed and sealed by a NJ Licensed Surveyor. The report shall include the computations, analysis, final coordinates, elevations, and diagrams for each of the semi-permanent points set within the project area. ACTIVITY 3020 – CONDUCT TOPOGRAPHIC SURVEY MFS shall utilize conventional surveying methods to perform the survey. Cross sectional data will be obtained at approximately 50’ intervals within the project

TIVITY 3020 – CONDUCT TOPOGRAPHIC SURVEY MFS shall utilize conventional surveying methods to perform the survey. Cross sectional data will be obtained at approximately 50’ intervals within the project limits. Additional supplemental cross section information will be obtained at driveway edges & centerlines in addition to low/high areas within the project limits. Supplemental locations will be observed at existing ADA ramps and building entrances & stairs. In addition, the survey will include observable and accessible manmade surface features (i.e., surface utility hardware, signs, fences, walls, pads, existing subsurface utility mark out, etc.). MFS will establish rim/grate elevations on sanitary and drainage structures located within survey limits. Invert measurements will be taken and recorded as will pipe types and sizes, MFS will not enter any structures. Structures with excessive debris and/or silt will be noted, MFS will not