Grays Harbor Estuary,Washington. Report 5. Maintenance Studies of 35-Ft-Deep (MSL) Navigation Channel. Hydraulic Model Investigation.

摘要

The existing, comprehensive fixed-bed model of the Grays Harbor estuary was used to determine the effectiveness of three proposed dredged material areas in the estuary entrance in retaining material deposited from a hopper dredge; the effects of three proposed Sand Island Shoal Channel realignment plans (including one plan with a confined disposal area) on channel shoaling, current velocities, and salinities; the effects of eight proposed confined dredged material disposal islands on channel shoaling; and the effects of six channel improvement plans (training dike, groin fields, and turning/settling basin) on channel shoaling, current velocities, surface directions, salinities, and dye dispersion. Prior to conducting channel shoaling tests, a comprehensive shoaling verification of the navigation channel was completed.