- Hartford Bridge Street Bridge Replacement
- AllSun Solar Tracker Installations
- CCTA Downtown Transit Center
- Renewable Energy Project – Vermont National Guard 2.2MW Solar Project
- Ryegate Culvert Design-Build Replacement Project
- East Alburgh Bridge Swing Span Automation
- Whipline Gas Bore
- Gentes Road Bridge Rehabilitation
- Renewable Energy Project – Rock of Ages 100kW Wind Turbine
- Lime Kiln Substation Retaining Wall
- North Hero-Grand Isle Draw Bridge Emergency Superstructure Repairs
- City of Burlington Municipal Paving Contract
- Interstate 91 Rutfill Project
- Pinkham Notch Conduit System
- Grade Crossing at Rte 142 Vernon
- Bellows Falls Tunnel Clearance Improvements
- Burlington Tunnel Emergency Repairs
- VELCO 115kV Underground Electric Transmission Line
- VELCO & GMP Lime Kiln Substations
- VTrans Intelligent Information System (ITS)
- Vermont State Archive Fire Water Storage System
Hartford Bridge Street Bridge Replacement
ECI was the low bidder on this $2.8M project which involved complete replacement of the bridge while utilizing the existing granite block abutments as a facade to the new substructure. Bridge Street is a critical connector street through downtown White River Junction (Hartford). The street passes below a two-track railroad bridge supporting the mainline and yard limits of the New England Central Railroad (NECR). The 1929 underpass bridge had narrow clearances and was severely corroded.
The new bridge included drilled micro-pile foundations and cast-in-place “relief slabs” supporting a superstructure consisting of precast concrete girders. The new rail was attached to the precast girders by direct fixation. The project also included new wingwalls with stone facing, bridge appurtenances, pedestrian walkway, streetscape features, and significant track work beyond the approaches.
The work was completed with minimal impact to the railroad by phasing the rail traffic between the two tracks and with weekend shut-downs to allow for the relief slab and girder installations. The phasing allowed for frequent rail yard switching movements, regular freight trains, and twice daily Amtrak trains through the site.
Through traffic on Bridge Street was closed for the duration of the heavy bridge work. Traffic detour patterns were established to minimize the impact to the traveling public and the local merchants.