I-95 over West River Bridge Rehabilitation
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
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