TR_CB_0173_0542_SSP_015_225.dgn

This file is a technical design document (specifically a .dgn CAD file) prepared by the Connecticut Department of Transportation for the installation and revision of traffic control signals across eight municipalities in District 3. The project encompasses eight signalized intersections located in Branford, Norwalk, Westport, Madison, New Haven, North Bridgeport, East Haven, and Guilford, requiring installation of new traffic signal equipment, pedestrian signal faces with accessible push buttons, mast arm assemblies, video and radar detection systems, LED light standards, concrete and bituminous sidewalk ramps, pavement markings, crosswalks, and emergency vehicle pre-emption equipment. The scope also includes removal of abandoned equipment, installation of handholes and circuit breakers, and coordination with utility companies including Eversource. Bids are due July 1, 2026 at 2:00 p.m. EDT under IFB 0173-0542. Connecticut DOT Signal Lab approval is required at least 45 days prior to any signal revisions, and pre-bid questions close at 9:00 a.m. the Monday before bid opening.

Mast arm assemblies must comply with AASHTO LRFD specifications with drilled shaft foundations of minimum 2-foot diameter and 4,000 PSI concrete with #8 rebar Grade 60, maintaining 16- to 18-foot vertical clearance. Time-based coordination and wireless radio systems for signal synchronization are required at selected locations. All traffic signal equipment must follow CTDOT Traffic Standard Sheets and CTDOT Highway Standard Sheets per Connecticut Department of Transportation Standard Specifications for Roads, Bridges, Facilities and Special Provisions, Form 819 (July 2025). Bidders must be prequalified with CTDOT and submit a bid bond of 30 percent of the bid amount in PDF format to dotbid@ct.gov prior to opening. Additional requirements include acknowledgment of all contract addenda on the DAS State Contracting Portal, submission of a Non-Collusion Statement and OPM Form 1 (Campaign Contribution Certification), and compliance with DBE requirements where applicable. The enhanced Bid Express (Bidx.com) platform is used for bidding with no required installed software.