Freeport Harbor, Texas, Channel Improvement Project, Reach 3 Lower Stauffer Channel in Brazoria County, Texas, Pipeline Dredging.

The Freeport Harbor vicinity is located on the mid- to upper Texas coast in Brazoria County and encompasses the communities of Surfside, Quintana Oyster Creek City, and the City of Freeport. The existing Freeport channel system begins approximately 4.9 miles seaward of the coastal jetty tips at the 47-foot contour in the Gulf, continuing upstream through the Freeport Harbor Entrance Channel, and winding westward for approximately 3.5 miles into Freeport to the Stauffer Channel Turning Basin. The original project for Federal improvement at Freeport was authorized by the Rivers and Harbors Act of June 14, 1880. This constituted the initial authorization for the existing Freeport Channel system. The Federal project known as Freeport Harbor, Texas, is an improvement of the original mouth of the Brazos River that provides for a deep-draft waterway from the Gulf of Mexico to the city of Freeport. The Freeport Harbor waterway has an overall length of about 7.6 miles from deep water in the Gulf of Mexico to the Brazos Harbor Turning Basin. The Freeport Ship Channel is a deep-draft navigation channel that connects industrial facilities in Freeport, Texas with the Gulf of Mexico. The main channel consists of multiple segments, with reduced channel widths and depths as the channel approaches the 180 degree turn around the Dow complex. The channel also provides barge access through multiple adjacent waterways. The Stauffer Channel portion or reach was dredged originally by local interests to a depth of 25 feet over a bottom width of 300 feet, with a 500-foot square basin area. The Rivers and Harbors Act of 1935 incorporated the channel into the Federal project and authorized its deepening to 30 feet over a bottom width of 200 feet, and deepening the basin to 30 feet over a bottom width of 200 feet, and deepening the basin to 30 feet. Prior to de-authorization in 1974, available depths were adequate for existing traffic and the authorized 30-foot depth was not dredged. This pipeline dredging, Freeport Harbor Lower Stauffer Channel Reach contract encompass the deepening and widen the Lower Stauffer Channel to new project authorized channel dimensions (-51 MLLW by 300 ft) and upland dredged material disposal to meet Port navigation needs. The dredge construction project will reauthorize the portion of the channel, the section designated as Stauffer Channel. The contract involves the complete clean out of the material from the existing and previously de-authorized approximately 3,700-LF channel template in the construction of the channel to the newly reauthorized 51 feet MLLW by approx. 300 feet in width. There are no options in this Bid Schedule of proposed work. Estimated duration for Schedule 1 is approximately 180-200 calendar days; with an assumed production rate of approx. 10,000 to 12,000 CY per day. The Estimated Total Quantity will be provided in the formal construction contract documents.

Division 35 -

Waterway and Marine Construction, Waterway and Marine Construction and Equipment, Dredging.