Glenn L. Jackson Memorial Bridge
From Wikipedia, the free encyclopedia
 |
|
| Carries | Interstate 205 |
|---|---|
| Crosses | Columbia River |
| Locale | Portland, Oregon to Vancouver, Washington |
| Design | Concrete segmental bridge |
| Longest span | 600 ft |
| Clearance below | 144 ft |
| AADT | 123,000 |
| Opening date | December 15, 1982 |
| Coordinates | |
The Glenn L. Jackson Memorial Bridge, or I-205 bridge, is a segmental bridge that spans the Columbia River between Vancouver, Washington and Portland, Oregon.
Planning for the structure began in earnest in 1964 when it was designated as part of the East Portland Freeway (later renamed Veteran's Memorial Freeway), formally Interstate 205. Construction began in August of 1977. In order to avoid disrupting river traffic, the bridge was built one segment at a time. The segments, weighing upwards of 200 tons, were cast four miles downstream and barged into place. At the time they were the largest concrete segments ever cast. The bridge was opened on December 15, 1982. The final cost of $175 million was shared by the states of Washington and Oregon. Three men died during its construction.
It is a twin structure with four lanes in each direction and a 9 ft. wide bicycle and pedestrian path in between. The bridge is 7,460 ft. long from the Washington side of the river to Government Island and another 3,120 ft. in length from Government Island to the Oregon side of the river. The main span, near the Washington side, is 600 ft. long with 144 ft. of vertical clearance at low river levels. The bridge was named for Glenn Jackson, the chairman of the Oregon State Highway Commission and later the Oregon Economic Development Commission. As of 2001 the average daily traffic was 123,000 vehicles.
[edit] Books
- Wood, Sharon. The Portland Bridge Book. Portland: Oregon Historical Society, 2001. ISBN 0-87595-211-9.
[edit] External links
| Bridges in the metropolitan area of Portland, Oregon See also: Transportation in Portland | |
| Across the Willamette River (north to south)
St. Johns Bridge - Burlington Northern Railroad Bridge 5.1 - Fremont Bridge - Broadway Bridge - Steel Bridge - Burnside Bridge - Morrison Bridge - Hawthorne Bridge - Marquam Bridge - Ross Island Bridge - Sellwood Bridge - Lake Oswego Railroad Bridge - Abernethy Bridge - Oregon City Bridge |
|
| Across the Columbia River (west to east)
Burlington Northern Railroad Bridge 9.6 - Interstate Bridge - Glenn L. Jackson Memorial Bridge |
| Crossings of the Columbia River | |||
|---|---|---|---|
| Upstream Bonneville Dam |
Glenn L. Jackson Memorial Bridge |
Downstream Interstate Bridge  |
|
