Facts 

Overview
Bascule bridge over Duwamish River on WA 99 in Seattle
Location
King County, Washington
Status
Open to traffic
History
Built 1956
Design
Bascule
Dimensions
Total length: 3,010.0 ft.
Inventory number
BH 34270 (Bridgehunter.com ID)
Inspection
Average daily traffic (as of 2002)
28,000

Categories 

Bascule (437)
Built 1956 (126)
Built during 1950s (1,399)
King County, Washington (80)
Movable (859)
Open (21,592)
Owned by state (6,524)
Total length over 2500 feet (337)
WA 99 (4)
Washington (541)