USACE Portland District, Dredging

Overview

HME was contracted by the U.S. Army Corps of Engineers – Portland District to perform clamshell maintenance dredging across multiple federal navigation channels in Oregon and Washington. This project involved the removal of over 250,000 cubic yards of sediment to maintain safe navigation for commercial and government vessels.

The dredging operations supported key regional waterways, ensuring continued navigability for ports, industries, and critical supply chains. Sediment was placed in approved in-water and upland disposal sites per USACE’s Beneficial Use of Dredged Material guidelines.

1. The Challenge

• Restore channel depths across multiple dredge sites in two states.
• Maintain safe navigation for commercial and government vessels.
• Ensure compliance with federal and environmental regulations.

2. The Solution

• Clamshell dredging was selected for efficient, controlled sediment removal.
• Dredged material was placed in approved in-water and upland disposal sites.
• Operations were completed on schedule and in compliance with all regulatory requirements.

3. The Impact

• Removed 250,000 cubic yards of sediment, restoring channel depths.
• Ensured safe navigation for vessels in critical waterways.
• Maintained compliance with USACE, state, and federal environmental regulations.
• Supported commerce and port operations across Oregon and Washington.

Conclusion

HME’s clamshell dredging operations for the USACE Portland District ensured the continued functionality of key waterways across Oregon and Washington. The project reinforced HME’s ability to execute large-scale maintenance dredging with precision and compliance.