+45.53696, -122.68416
45°32'13" N, 122°41'03" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I-405 (HWY 061) over WILLAMETTE RIVER
Structure number:02529 061 00332
Purpose:Carries highway over highway, waterway, and railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:1255.0 ft. [382.5 m]
Total length:2154.0 ft. [656.5 m]
Roadway width between curbs:136.2 ft. [41.5 m]
Deck width edge-to-edge:143.1 ft. [43.6 m]
Vertical clearance above deck:18.4 ft. [5.6 m]
Vertical clearance below bridge:174.9 ft. [53.3 m]
Owner:State Highway Agency [01]
Year built:1973
Historic significance:Bridge is possibly eligible for the National Register of Historic Places [3]
Design load:MS 18 / HS 20 [5]
Number of main spans:3
Main spans material:Steel continuous [4]
Main spans design:Arch - Thru [12]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: September 2012

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:116,700 [as of 2010]
Truck traffic:10% 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:Superior to present desirable criteria [9]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge is scour critical; bridge foundations determined to be unstable. [3]
Operating rating:59.8 tons [54.4 metric tons]
Inventory rating:36.0 tons [32.7 metric tons]
Sufficiency rating:76.0
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$51,289,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
September 201276.0FairSatisfactorySatisfactorySatisfactoryFO116700
September 201076.0FairSatisfactorySatisfactorySatisfactoryFO110200
September 200876.0FairSatisfactorySatisfactorySatisfactoryFO110200
March 200776.0FairSatisfactorySatisfactorySatisfactoryFO112600
December 200476.0FairSatisfactorySatisfactorySatisfactoryFO110600
January 200376.0FairSatisfactorySatisfactoryGoodFO110700
December 200076.0GoodGoodGoodVery GoodFO109000
December 199876.0GoodGoodGoodVery GoodFO101000
December 199676.0GoodGoodGoodVery GoodFO107000
December 199476.0GoodGoodGoodVery GoodFO107000
December 199276.0FairGoodSatisfactoryVery GoodFO99500
December 199057.0FairVery GoodSatisfactoryVery GoodFO82500