Swinomish Channel, Washington

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146. Swinomish Channel is a dredged inland tidal waterway--100 ft wide,

-12

mllw deep, and 11 miles long--located in the northwestern part of the

state of Washington about 60 miles north of Seattle. It connects the deep

waters of Saratoga Passage and Padilla Bay and separates Fidalgo Island from

the mainland. The project includes dikes along the waterway to protect

farmland and three jetties at the southern end of the channel.

147. The project was adopted in 1892. The jetties include a rubble-

mound and timber pile north jetty extending west from "Hole in the

rubble-mound south jetty extending west from Goat Island, and a rubble-mound

jetty connecting Goat Island to McGlinn Island. The north jetty was con-

structed in 1893 and reconstructed in

The south jetty was constructed

and rehabilitated and extended in 1973. The Goat-McGlinn Island jetty

and rehabilitated in 1940, 1946, and 1963.

was completed in

148. The rehabilitations were required because of settlement due to

foundation problems. A t the present time, the south jetty and the

Island jetty appear to be in good condition, while the north jetty

shows obvious deterioration. A chronology of events related to the develop-

ment and repair of the jetty structures is given in Table 46.

Waterway Connecting Port Townsend

and Oak Bay, Washington

Port Townsend is located on the northern Washington coast along

the Strait of Juan de Fuca. The Oak Bay Canal connects Port Townsend Bay and

Oak Bay. The project includes two jetties at the Oak Bay end of the canal,

the west jetty being 550 ft long and the east jetty being 600 ft long, and

ft of bulkheads on the west side of the canal. The jetties were con-

structed of brush, pile, and stone; the bulkheads were constructed of brush,

pile, and timber.

and completed in 1916. The east

150. The project was adopted in

jetty was rehabilitated in 1937; the west jetty was rehabilitated in 1961.

Very little information on the project is available. Currently, the west

jetty is in good condition, while the east jetty shows some deterioration but

is stable and functional. A chronology of events related to the development