Where will the next major bridge collapse occur?
I have this uneasy feeling again
http://www.infrastructurereportcard.org/fact-sheet/bridges
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Solutions
Set a national goal that less than 15% of the nation’s bridges be classified as structurally deficient or functionally obsolete by 2013;
Increase transportation investment significantly at all levels of government to fund the needed repair, renovation, or reconstruction of the nation’s deficient bridges;
Implement an asset-management approach to maintaining bridges to achieve an appropriate balance between correcting immediate problems, conducting preventive maintenance, rehabilitating deficient bridges, and periodically replacing older bridges;
Update bridge-inspection standards and implement risk-based prioritization for the repair or reconstruction of the nation’s bridges;
Increase funding for long-term transportation research at the national level to ensure better performing and more resilient bridges.
Conditions
Usually built to last 50 years, the average bridge in our country is now 43 years old.1 According to the U.S. Department of Transportation, of the 600,905 bridges across the country as of December 2008, 72,868 (12.1%) were categorized as structurally deficient and 89,024 (14.8%) were categorized as functionally obsolete. From 2005–2008, the number of deficient (structurally deficient plus functionally obsolete) bridges in rural areas declined by 8,596. However, in urban areas during the same time frame, there was an increase of 2,817 deficient bridges.2 Put another way, in 2008 approximately one in four rural bridges were deficient, while one in three urban bridges were deficient. The urban impact is quite significant given the higher level of passenger and freight traffic.
A structurally deficient bridge may be closed or restrict traffic in accordance with weight limits because of limited structural capacity. These bridges are not unsafe, but must post limits for speed and weight. A functionally obsolete bridge has older design features and geometrics, and though not unsafe, cannot accommodate current traffic volumes, vehicle sizes, and weights. These restrictions not only contribute to traffic congestion, they also cause such major inconveniences as forcing emergency vehicles to take lengthy detours and lengthening the routes of school buses.
With truck miles nearly doubling over the past 20 years and many trucks carrying heavier loads, the spike in traffic is a significant factor in the deterioration of America’s bridges. Of the more than 3 trillion vehicle miles of travel over bridges each year, 223 billion miles come from trucks.1
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I found it - hope they repair your bridge
A National Bridge Inventory sufficiency rating of 2 out of a possible score of 100.
That's right. 2 out of 100.
It's 85 years old. It's cracked in several places. 30,000 vehicles a day cross it.
The weight limit of 35 tons has been reduced to 10. Buses are diverted from it.
In 2008 the County injected glue in cracked sections of concrete to seal them against corrosive water and air. The County also monitors slope movement on the west side that could endanger the bridge.
http://www.sellwoodbridge.org/?p=frequently-asked-questions
Apparently there is a plan for a new bridge, no thanks to the Feds. Since we have a slightly Democratic-leaning state legislature, there are now plans to replace it.
$127 million - Multnomah County VRF ($19 per year vehicle registration fee)
$73.5 million - City of Portland (new revenues from the Oregon Jobs and Transportation Act)
$35 million - State of Oregon (Jobs and Transportation Act) for Highway 43 interchange
$17.7 million - Federal TIGER grant
$15.6 million - Previously secured federal fund
They think if we go in the water they'll have a jump on escaping the car. 
