FY26 Willapa Harbor Maintenance Dredging

The project involves maintenance dredging at Willapa Harbor, Washington, with an estimated construction magnitude of $5,000,000 to $10,000,000. The work includes dredging approximately 180,000 CY of accumulated sediment across three project features, with a minimum required dredging depth varying from -10 ft to -15 ft MLLW. The project also requires dredging of approximately 10,000 CY in the Palix River thalweg. The in-water work windows range from 16 July 2026 to 15 February 2027, and contractors should expect difficult mobilization, demobilization, and construction conditions due to dynamic shoaling conditions and challenging weather. Key features of the project include: • Dredging of approximately 180,000 CY of accumulated sediment • Minimum required dredging depth varying from -10 ft to -15 ft MLLW • Dredging of approximately 10,000 CY in the Palix River thalweg • In-water work windows ranging from 16 July 2026 to 15 February 2027 • Difficult mobilization, demobilization, and construction conditions due to dynamic shoaling conditions and challenging weather