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Steel Bridge and Fremont Bridge, Dusk, Willamette River
 
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Image is copyrighted and may not be copied or used without permission.
Location: Portland, Oregon
Steel Bridge: This is the bridge the Amtrak trains cross when leaving Portland to
the south or east. Portland's MAX light rail train crosses on the top
deck, also. Cars use it, too!
Finished in 1912, the Steel Bridge is considered
unique because it is one of the only known dual-lift bridges in the world.
That is, the lower deck (Amtrak and freight trains) can be lifted independently
of the upper deck (MAX, automobiles) to allow some clearance.
The current Steel bridge replaced an earlier on at approximately the
same spot that was built in 1888. [1]
Fremont Bridge: Finished in 1973, this is Portland's newest bridge over the Willamette.
The double-decked Fremont Bridge connects northbound I-405 and westbound
US-30 to I-5. It weighs 6,000 tons and was lifted 170 feet - a Guinness
Book of World Records entry for heaviest lift ever made at the time.
The tied arch span is 902 feet long and was not built on-site but floated
on the river into place. [1]
References:
[1] Smith, Dwight. Historic Highway Bridges of Oregon. Second
Edition. Portland, Oregon: Oregon Historical Society, 1989. P. 208.
References:
[1] Smith, Dwight. Historic Highway Bridges of Oregon. Second
Edition. Portland, Oregon: Oregon Historical Society, 1989. P. 300.
| PhotoID D300CRW08189 Specifications: | |
| Size: | 2160x1440 pixels, 300DPI up to 7.20" x 4.80" |
| Largest Print Size: | Great Prints up to 16"x24" in size (larger may still be acceptable in some cases) |
| Camera Exposure/Specs: | 30 Sec, f16, ISO 200, Lens 28.0 to 135.0 at 60mm |
| Shoot Time/Day: | 08/18/2002 - 19:54 PST |
