The project consists of extending the fixed pier, adding two camel floats, a small craft float and reconfigured wave screen attenuation. The 520’ pier extension includes a fixed crane, mobile cranes and support utilities. The open-cell camel floats’ non-prismatic cross section provided a more appropriate mooring condition for the submarine hull while berthed. The floats were filled with foam once on site to prevent water intrusion in an extreme collision event. External ballast was used to adjust freeboard fore and aft. Each of these two camel floats are 95’ long x 18.75’ wide x 17.75’ deep. The foam-filled small craft float is 150’ long x 14’ wide x 8.25’ deep and allows easy access to support vessels.
Corrosion resistant design - The pier structure was designed with a 75-year service life and incorporated several corrosive resistant materials, such as high-performance marine concrete with low permeability, coated reinforcement, and adequate clear coverage.
Lightweight aggregate - The two open-cell camel float walls and keels were cast with lightweight marine concrete to aid in the necessary freeboard required. Since concrete pumping was required of pilasters (connections between walls) and top deck, conventional marine concrete was used.
24” thick Haunched Decks – 166 pcs., approx. 15,593 SF
Precast and Prestressed Solid Slabs – 97 pcs., approx. 12,997 SF
18” Square Fender Piling – 58 pcs., approx. 5,908 LF
Flat Gray Walls – 33 pcs., approx. 5,157 SF
Open-Cell Floats – 2 pcs., approx. 3,563 SF
Foam-Filled Float – 1 pc., approx. 2,100 SF
