Westchester County Westchestercounty #42990

Traffic Signal Upgrade Design and Construction Documents for Mamaroneck Avenue Intersections

Westchester County and the Village of Mamaroneck are seeking a qualified traffic engineering consultant for the design and construction documentation of traffic signal upgrades at two intersections on Mamaroneck Avenue. - Government Buyer: - Westchester County (in collaboration with Village of Mamaroneck) - Village of Mamaroneck, Planning Department Design Section - Scope of Work: - Prepare design and construction documents for traffic signal upgrades at: - Mamaroneck Avenue & Hillside/Gertrude Avenue (pedestrian signal revisions) - Mamaroneck Avenue & Nostrand Avenue (full signal replacement) - Upgrade pedestrian infrastructure to meet current PROWAG and ADA standards - Recalculate pedestrian walk and clearance times - Implement Lead Pedestrian Intervals (LPI) - Install dual message blank-out signs - Remove and replace existing signal infrastructure - Provide related signage and equipment specifications - Coordinate with Con Edison for utility relocation due to overhead utility conflicts - Support bidding process and provide construction administration/design services during construction - Unique/Notable Requirements: - All work must be completed within 180 days from authorization to proceed - Consultant must provide detailed cost breakdown per task - Compliance with PROWAG and ADA is mandatory - Utility relocation coordination is required due to significant overhead conflicts - No specific OEMs or vendors are named in the solicitation.

Description

This solicitation is for the design and construction documents for traffic signal upgrades at two intersections on Mamaroneck Avenue in the Village of Mamaroneck, NY, specifically at Hillside/Gertrude Avenue and Nostrand Avenue. The project aims to improve pedestrian infrastructure to meet current PROWAG and ADA requirements, replace the full traffic signal at Nostrand Avenue, and revise pedestrian signal infrastructure at Hillside/Gertrude Avenue. The consultant will also coordinate with Con Edison for utility relocation and provide design services through construction administration. Proposals are due by August 6, 2026.

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