12TH AVE S over I-90


+47.59443, -122.31682
47°35'40" N, 122°19'01" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:12TH AVE S over I-90
Structure number:0008155F0000000
Location:0.2 E JCT I-5
Purpose:Carries highway and pedestrian walkway over highway
Route classification:Minor Arterial (Urban) [16]
Length of largest span:126.0 ft. [38.4 m]
Total length:366.2 ft. [111.6 m]
Roadway width between curbs:44.0 ft. [13.4 m]
Deck width edge-to-edge:65.0 ft. [19.8 m]
Vertical clearance below bridge:19.7 ft. [6.0 m]
Owner:State Highway Agency [01]
Year built:1968
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Number of main spans:4
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: March 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:18,400 [as of 2012]
Truck traffic:1% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:70.3
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$10,248,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
March 2018FairSatisfactorySatisfactorySatisfactory1840070.3
March 2016FairSatisfactorySatisfactorySatisfactory1840070.3
March 2014FairSatisfactorySatisfactorySatisfactory1840070.3
March 2012FairSatisfactorySatisfactorySatisfactory450074.6
April 2010FairSatisfactorySatisfactorySatisfactory450056.0
April 2008FairSatisfactorySatisfactorySatisfactory450056.0
May 2007FairSatisfactorySatisfactorySatisfactory450056.0
May 2006FairSatisfactorySatisfactoryGood450056.0
December 2005FairSatisfactoryGoodGood450056.0
December 2003FairSatisfactoryGoodGood450056.0
August 2001FairSatisfactoryGoodGood450056.0
May 1999FairSatisfactoryGoodGood450056.0
July 1991FairSatisfactoryGoodGood450055.9