Location: Groton, CT
This design-bid-build project encompassed work on two piers at Naval Subbase New London. Both piers required the removal of old wooden fender piles and replacing them with new fender piles. The original contract called for precast concrete piles to be installed for the new fender systems which will be designed to handle barges, tugs, and small crafts. Triton was able to provide two separate value engineering construction proposals for each pier using plastic reinforced piles in lieu of the precast concrete piles. The Navy recognized the cost savings and benefits of using plastic piles. During the 2nd VECP process for Pier 15, the Navy added submarine berthing capability for the fender system. Triton was able to add this into the design and still provide cost savings for Pier 15’s fender system.
Pier 15: 187 steel piles were to be wrapped for corrosion protection. They were located on the mooring platforms to which the submarine dry dock ties up, and 52 steel piles were to be jacketed for structural integrity. Pier 2: 79 piles required wrap. Initial inspection of the piles revealed many had extensive deterioration. We proposed a repair that would provide pile jackets for these piles. Work was conducted on the piles that were to be wrapped, and nine pile jackets were approved months later. These 9 pile jackets were installed towards the end of the project as a priority of pile work was sequenced to Pier 15. Pier 2 also required turbidity monitoring for all work involving the sea floor, as well as a turbidity curtain in place for that work.
For both piers, lead paint removal, recoating of mooring cleats/double bitts, topside spalls on Pier 15, underdeck spalls on Pier 2 and 15, new electrical conduit and wiring were required for tugs/barges, as well as a new epoxy overlay and broadcasting of sand were required.
Project Tasks:
- Deck and Pile Demo
- New Fender System
- Concrete Repairs
- Coating of Sheetpile Wall
- Mooring System Components
- Deck Sealant
- Pile Wrap