US 12 over SR 823 (N 1ST ST)


+46.62622, -120.51233
46°37'34" N, 120°30'44" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US 12 over SR 823 (N 1ST ST)
Structure number:0008616B0000000
Location:16.9 E JCT SR 410
Purpose:Carries highway over highway
Route classification:Principal Arterial - Other Freeways or Expressways (Urban) [12]
Length of largest span:116.1 ft. [35.4 m]
Total length:212.0 ft. [64.6 m]
Roadway width between curbs:38.1 ft. [11.6 m]
Deck width edge-to-edge:41.0 ft. [12.5 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Owner:State Highway Agency [01]
Year built:1969
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:3
Main spans material:Prestressed concrete continuous [6]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: April 2017

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:13,980 [as of 2012]
Truck traffic:11% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Equal to present minimum criteria [6]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:94.6
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$3,392,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
April 2017GoodGoodGoodGood1398094.6
April 2015GoodGoodGoodGood1398093.6
October 2013GoodGoodGoodGood1398093.6
October 2011GoodGoodGoodGood1382993.6
October 2009GoodGoodGoodGood1293293.7
October 2007GoodGoodGoodGood750095.3
September 2005GoodGoodGoodGood750095.3
October 2003GoodGoodGoodGood750095.3
October 2001GoodGoodGoodGood750095.3
September 1999GoodGoodGoodGood750095.3
July 1997GoodGoodGoodGood750095.3
August 1995GoodGoodGoodGood750092.3
June 1993FairSatisfactoryGoodGood1000096.2
July 1991FairSatisfactoryGoodGood840097.4

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
Prestressed Concrete Girder/Beamlinear ft.1,2721,272000
Reinforced Concrete Decksq. ft.8,0568,056000
Wearing Surfacessq. ft.8,05608,05330
Reinforced Concrete Columneach44000
Reinforced Concrete Abutmentlinear ft.8484000
Reinforced Concrete Pier Caplinear ft.116116000
Pourable Jointlinear ft.7607600
Compression Jointlinear ft.76038380
Elastomeric Bearingeach1212000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.424424000
Reinforced Concrete Bridge Raillinear ft.424419050