I-95 over West River Bridge Rehabilitation

Heavy/Civil Infrastructure, Bridges
Bid Build
New Haven, CT
Connecticut Department of Transportation
Award Winner

This project consisted of the replacement of the I-95 over West River Bridge, a 348m long, 28m wide, 12-span structure and one of the longest and most heavily traveled bridges in the state.

The bridge handles approximately 135K cars per day. The bridge was widened to 43.2m to accommodate a 1.8m median, a 4.8m inside shoulder and three 3.6m lanes in each direction, a 3.6m outside shoulder in the northbound direction and a 4.2m acceleration lane and 2.4m shoulder in the southbound direction. The I-95 Southbound to Kimberly Avenue Ramp Bridge was demolished. The I-95 over Ella T. Grasso Boulevard Bridge, a 37.8m long, 36.5m wide 3-span bridge, was replaced with a 31m long, 40.2m wide single-span bridge. The project also included the reconstruction of 1,420m of I-95 from I-95 over the Amtrak Bridge to the west, to east of the Howard Avenue structure over I-95.

2019 – Excellence in Construction

2018 – Project Achievement for Infrastructure over $25M

2018 – Project Achievement for Infrastructure over $25M

2018 – Excellence in Construction

By the Numbers

16K SF
Temporary Trestles

82.5K LF
Precast Piles

82K LM – in 6 locations
Prefab Vertical Drains

25K CY
Lightweight Fill

150K CY
Excavation

144K SF
Demolished Deck

80K SF
Sheet Pile

4.8K LF
Turbidity Curtain

$139M
Project Value

Scope of Work
  • Construction of temporary trestles in the West River for access to pile supported pier locations, erection of structural steel, and demolition of the existing bridge
  • Temporary roadway crossing ramp constructed to provide crossing where vehicular access over a pipeline
  • Temporary highway construction to accommodate traffic shifts
  • Reconstructing highway approaches and exit ramps to access Ella Grasso Blvd. and Kimberly Ave.
  • Construction of the new West River bridge piers and superstructure
  • Demolition of the existing West River Bridge
  • Replacement of the I-95 Bridge over Ella T. Grasso Blvd.
  • Construction of drainage improvements
Unique Challenges
  • Maintaining the waterway at all times for use by recreational boaters
  • Borings were not taken in the river thus piles were driven much deeper than anticipated to achieve bearing
  • Maintaining access to adjacent marina