The document summarizes a rock removal project in the Columbia River channel. It discusses the importance of the Columbia River as an export gateway and provides details about past construction contracts. It then describes the 2009 project, which involved preliminary investigations in the St. Helens area using test digs and seismic/electrical surveys. The results determined blasting would be needed to break up the basalt. The document outlines the blasting methods used, including the equipment, drilling, loading, and detonation process. It discusses the dredging and disposal operations and shipping coordination. The outcome was successful removal of 500,000 cubic yards of material while maintaining environmental protections and staying ahead of schedule.