Harbor dredging project underway

The long-awaited dredging project to deepen the federal navigation channel and improve efficiency and reliability of navigation to and from Grays Harbor got underway.

American Construction Company has the $27 million contract to remove approximately 3.5 million cubic yards of material and maintain the channel in the inner harbor. The work is expected to be completed by late September of 2018.

The project will deepen the channel from minus-36 feet to minus-38 feet MLLW (Mean Lower Low Water), which is the average height of the lowest tide recorded each day.

The suitable dredged material will be placed at either the Point Chehalis or South Jetty disposal site, and will also be used for beach nourishment at South Beach and Half Moon Bay as a deterrent to beach erosion. Approximately 22,000 cubic yards of material is deemed unsuitable for open water disposal and will be placed in an upland placement site near Terminal 3.

The news is collated by Globaldredge.com – Dredging Pipeline Supplier.