Cianbro reconstructed the bulkhead at Morgan’s Wharf, adjacent to the U.S. Coast Guard Yard in Curtis Bay, MD.
Scope of Work
Cianbro dredged 28,000 cubic yards of material to achieve a 14 foot water depth, replaced the 250 linear feet sheet pile bulkhead, and installed timber dolphins, a relieving platform and a 2 foot by 3 foot duct bank. The project utilized the design/build project delivery method to control cost and deliver the project ahead of schedule.
- Installed perimeter sediment control devices
- Excavated to expose the existing 250 feet x 20 feet timber deck
- Saw-cut and demolished the top two feet of the existing seawall
- Salvaged the relieving platform
- Fabricated a 24-foot steel driving pile frame
- Installed 250 linear feet of sheeting frame and sheet piles
- Drove 58 ea. 24-inch concrete piles
- Cut trenches for pile caps, seawall, sheets, electric vault and conduit
- Installed two timber dolphins
- Placed all pile caps and decks in three monolithic concrete pours
- Installed wing fenders
- Fabricated and installed 2 foot by 3-foot 6 inch PVC duct bank and vaults
- Mechanically dredged 28,000 cubic yards of material and barged the material to an off-site disposal area
Lean, Innovative, and Unique Project Solutions
Cianbro constructed the project with a very aggressive project schedule due to the permit schedule.