Engineering Services, Design And Construction Inspection Services For Sidewalks Improvements Projects

SCOPE OF WORK The successful professional engineering firm will be contracted to prepare complete bid and construction documents for a New Jersey Urban Enterprise Authority (UEZ) Sidewalk Improvement Project, which will consist primarily of sidewalk replacement, repair, and ADA compliance upgrades within the project limits identified by the City of Trenton. This project will focus on removing and replacing deteriorated sidewalks, correcting tripping hazards, installing ADA-compliant curb ramps, and regarding where necessary to address ponding or cross-slope deficiencies within the UEZ Zones in the City of Trenton. a) The scope of work shall include the following: 1. Preliminary Assessment and Documentation: The successful firm shall perform a comprehensive field evaluation of all sidewalks, curbs, curb ramps, drive aprons, and pedestrian crossings within the designated limits, identify and document deficiencies related to structural condition, surface hazards, cross slopes exceeding ADA maximums, vertical displacement at joints, and lack of compliant curb ramps and evaluate drainage patterns impacting sidewalks and recommend regrading or curb adjustments to eliminate ponding conditions. These assessments will be done in an order provided by City staff. In this phase, a walk through with City staff and interested businesses on that block will happen to give input into the design. 2. Field Survey / Base Map Preparation: Prepare a topographic and planimetric survey of the project area sufficient to support design and bidding. The survey shall include, but not be limited to: a. Sidewalk edges, expansion joints, driveway aprons, and adjacent roadway edge. b. All curb lines, curb ramps, detectable warning surfaces, and pedestrian crosswalk striping. c. Above ground and visible underground utility features, street trees, landscaping, poles, signage, hydrants, and other obstructions in the pedestrian path of travel. d. Spot elevations at intervals and transitions necessary to verify compliance with ADA slope standards (maximum 2% cross slope, maximum 8.33% ramp slope, etc.). The survey shall be signed and sealed by a New Jersey Professional Land Surveyor (P.L.S.) and prepared at a scale of not smaller than 1 = 20 3. 75% Preliminary Construction Plans / Specifications / Bid Document Preparation: Prepare preliminary construction plans showing existing and proposed sidewalk alignments, grades, profiles, and ramp configurations. Design ADA-compliant curb ramps in accordance with the latest PROWAG (Public Rights-of-Way Accessibility Guidelines), the 2010 ADA Standards for Accessible Design, and NJDOT Standard Details Include construction details for sidewalk replacement, jointing, reinforcement, detectable warning surfaces, and surface finishing. Identify and specify required traffic control measures per the Manual on Uniform Traffic Control Devices (MUTCD) for pedestrian detours during construction. Prepare technical specifications and preliminary construction cost estimates for City review. Perform all necessary initial field visit(s), observation, investigation and research. Prepare preliminary construction plans and technical specifications, schedule and construction estimate for review by the Citys representative(s), in preparation for Request for Bid. Preliminary documents shall address all items to be removed and reconstructed, including existing and proposed profiles, top of curb and sidewalk elevations and details for construction / installation of improvements. The plan set shall be detailed sufficiently to address requirements for Public Bidding, applicable permits, including Soil Erosion Sediment Control Certification. The scope also includes the preparation of a Project Manual containing the instruction to Bidders, the Form of Proposal, the Standard General Conditions, any Supplemental Conditions, Prevailing Wage Rate Determination and the Supplementary Specifications for State Aid Projects.