Glenn L. Jackson Memorial Bridge

From Infogalactic: the planetary knowledge core
(Redirected from Glenn Jackson Bridge)
Jump to: navigation, search
Glenn Jackson Memorial Bridge
Glenn Jackson Bridge aerial.jpg
Aerial view, looking north
Coordinates Lua error in package.lua at line 80: module 'strict' not found.
Carries I-205.svg Interstate 205
Crosses Columbia River
Locale Portland, Oregon to
Vancouver, Washington
Characteristics
Design Concrete segmental bridge
Longest span 600 ft (183 m)
Clearance below 144 ft (43.9 m)
History
Opened December 15, 1982
Statistics
Daily traffic 137,000
Glenn Jackson Memorial Bridge is located in Oregon
Glenn Jackson Memorial Bridge
Glenn Jackson Memorial Bridge
Location in Oregon

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), Interstate 205. Construction began in August 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 4 miles (6.4 km) downstream and barged into place. The bridge was opened on December 15, 1982.[1] The finished project cost was $169.6 million: $155.7 million from Federal funds, $4 million from Washington state funds and $9.9 million from Oregon state funds.[2] Three men died during its construction.

It is a twin structure with four lanes in each direction and a 9-foot (2.7 m) wide bicycle and pedestrian path in between. The bridge is 7,460 ft (2,270 m) long from the Washington side of the river to Government Island and another 3,120 ft (951 m) in length from Government Island to the Oregon side of the river. The main span, near the Washington side, is 600 ft (183 m) long with 144 ft (44 m) 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.[3] The average daily traffic during 2013 was 142,000 vehicles.[4]

File:The Glenn L. Jackson Memorial Bridge from Columbia River Looking West.JPG
Under construction, looking east from the Columbia River around 1980-81

References

  1. ↑ Callister, Scotta (December 16, 1982). "Rain fails to faze bridge-crossers". The Oregonian, p. E12.
  2. ↑ Federal-aid Project No. I-205-7(85)315 Contract 8526; Federal-aid Project No. I-205-7(65)314 Contract 8862; Federal-aid Project No. I-205-7(66)315 Contract 8905; Federal-aid Project No. I-205-7(85)314 Contract 9510; Federal-aid Project No. I-205-7(84)314 Contract 9444; Federal-aid Project No. I-205-1(121)0 Washington Approach Contract
  3. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  4. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  • Lua error in package.lua at line 80: module 'strict' not found.

External links

Media related to Lua error in package.lua at line 80: module 'strict' not found. at Wikimedia Commons

Retrieved from "https://infogalactic.com/w/index.php?title=Glenn_L._Jackson_Memorial_Bridge&oldid=2241348"