Dredging

Beach

Capital/Fills

Maintenance

Channel Islands and Port Hueneme Harbor

Baker’s Bay Marina - Great Guana Cay

Houston-Galveston Navigation Channels, TX (45-foot project)

Swinomish Channel and Squalicum Waterway Dredging

Ventura Harbor Maintenance Dredging

Morehead City and Wilmington Harbors Ocean Bars

Mississippi River, Baton Rouge to Gulf of Mexico, Southwest Pass and Cvbit’s Gap

Port of Anchorage Emergency Dredging

Environmental

Maintenance Dredging

Baker’s Bay Marina - Great Guana Cay

Customer
Discovery Land Company

Location:
The Bahamas

Project Description
The project involved dredging an entrance channel to provide access to the new Baker’s Bay Marina for pleasure craft, yachts and mega-yachts. Dredging the channel required removal of 500,000 to 600,000 cubic yards of sand, rock and assorted organic materials. The channel is approximately 4,000 feet long and provides 125-foot wide by 14-foot deep navigable access to the new marina.

Dredged materials were pumped into three disposal areas to be used as fill to create elevated roadways, home construction sites and a new golf course in the vicinity of the marina basin. Discharge pipelines up 7,000 feet in length were assembled and installed by Manson crews.

One of the major challenges of the project was mobilizing heaving equipment to the remote location. Manson’s 16-inch cutterhead dredge Frank Bechtolt, for example, was disassembled at the company’s Seattle headquarters and transported to the Manson yard facility in Jacksonville, Fla., where it was reassembled on a submersible ocean transport barge. Upon reaching the project site, the transport barge was submerged, allowing the dredge to float off.

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