The U.S. Army Corps of Engineers has chosen a contractor to dredge a 2-mile section of the west fork of the San Jacinto River, a project intended to increase the river’s capacity to hold floodwaters.

The Corps’ Galveston district announced Friday that it had awarded a contract to Great Lakes Dredge and Dock for $69.8 million. The company, based in Brook, Ill., submitted the second-lowest of three bids.

Read more: Dredging of San Jacinto’s west fork to begin soon

The project involves removing an estimated 1.9 million cubic yards of sediment from the river. The dredging is expected to be completed next spring. Experts say, however, that sediment will begin accumulating again when the project is complete, and no arrangements have been made for routine maintenance dredging.

An estimated 16,000 homes and 3,300 businesses in the Lake Houston area flooded during Hurricane Harvey. The impact of the flood was increased by the buildup of sediment in the river.