Gulf Intracoastal Waterway, Texas, Freeport Harbor to Upper Matagorda Bay in Brazoria and Matagorda Counties, Texas, Pipeline Dredging.

Project Information: The work consists of pipeline dredging Freeport to Upper Matagorda Bay, Texas including the San Bernard and Colorado River channels. Project is for shallow-draft pipeline dredging of the Gulf Intracoastal Waterway (GIWW) in Brazoria and Matagorda Counties with two Options for additional dredging of the GIWW San Bernard River channel and the GIWW Colorado River Channel. Contractor should expect and be able to perform dredging operations in strong currents / riverine flows in and around the Brazos River, the Colorado River, San Bernard River and vicinity of GIWW / Caney Creek intersections. In addition to being able to dredge in locations with strong currents / riverine flows contractor must have dredge plant capable of efficient removal of shoals in areas of rapid / high sediment deposition. Sediment composition is primarily silty but contractor should expect to encounter hard-packed sand in vicinity of Caney Creek and Colorado River Crossing. Schedule 1: dredging of approximately fourteen (14) sections within the GIWW and GIWW Channel to Palacios. Estimated quantity: 1,140,000 CY. Placement Areas include: upland confined, open water, surf zone and river discharge. Completion time, 230 calendar days. Option 1: dredging of four (4) sections within the GIWW San Bernard River Channel between Sta. 2+600 and Sta. 84+600. Estimated quantity: 30,000 CY. Placement: river placement. If awarded, an additional 23 calendar days will be added to the contract completion time. Option 2: dredging of four (4) sections within the GIWW Colorado River Channel between Sta. 13+884 and Sta. 83+229. Estimated quantity: 36,000 CY. Placement: river placement. If awarded, an additional 17 calendar days will be added to the contract completion time.

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