I-405 (HWY 061) NB over CITY STREETS


+45.53261, -122.68699
45°31'57" N, 122°41'13" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I-405 (HWY 061) NB over CITY STREETS
Structure number:09268N061 00284
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:191.0 ft. [58.2 m]
Total length:2367.2 ft. [721.5 m]
Roadway width between curbs:52.2 ft. [15.9 m]
Deck width edge-to-edge:55.4 ft. [16.9 m]
Vertical clearance above deck:18.4 ft. [5.6 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Owner:State Highway Agency [01]
Year built:1972
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:6
Main spans material:Steel continuous [4]
Main spans design:Box beam or girders - Multiple [05]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: March 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:122,400 [as of 2014]
Truck traffic:7% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Basically intolerable requiring high priority of corrrective action [3]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Underclearances appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:16.4 tons [14.9 metric tons]
Inventory rating:12.4 tons [11.3 metric tons]
Sufficiency rating:42.5

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
March 201642.5FairFairSatisfactoryGoodFO122400
November 201378.0FairFairSatisfactoryGood-56700
April 201378.0FairFairSatisfactoryGood-56700
April 201178.0FairFairSatisfactoryGood-56700
February 200978.0FairFairSatisfactoryGood-56700
January 200978.0FairFairSatisfactoryGood-57267
December 200678.0FairFairSatisfactoryGood-56300
December 200579.0FairSatisfactorySatisfactoryGood-56300
December 200379.0FairSatisfactorySatisfactoryGood-55350
December 200180.0FairSatisfactoryGoodGood-54500
December 199980.0FairSatisfactoryGoodGood-47001
December 199780.0GoodVery GoodVery GoodGood-47000
December 199580.0GoodVery GoodVery GoodGood-40400
December 199380.0GoodVery GoodVery GoodGood-40400
December 199180.0GoodGoodGoodGood-40400