Scope of Work
The Cianbro/Middlesex Joint Venture is currently performing work on the new extradosed cable stayed Pearl Harbor Memorial Bridge over the Quinnipiac River. The project includes the installation of the main span footings, west approach ramps, and utility operations on adjacent roadways throughout the site.
Project Details
The Cianbro Team is:
- Installing 4 each, 44 ft x 170 ft cofferdams
- Installing 42 each, 8 ft diameter drilled shafts at the 4 main span foundations with a maximum depth of 220 ft
- Driving 591 each, 16 and 20 inch prestressed concrete pile at 4 abutments and 18 pier locations
- Installing cast-in-place footings, columns and caps at each pier location in addition to the architectural abutment concrete
- Constructing two work trestles totaling 54,000 sf in area including:
- 250 each, 24 inch diameter pipe pile totaling 1,950 tons
- Structural steel frame totaling 2,200 tons
- Wood decking totaling 1,650 tons
- Installing bearings, structural steel, concrete decks, parapets and bridge drainage along the west approach
Unique Challenge
The Cianbro team is constructing the two work trestles, the four cofferdams, the 42 drilled shafts and the main span footings before December 21st 2009.