I-405 (HWY 061) over HWY 47 CONN 1


+45.50538, -122.67862
45°30'19" N, 122°40'43" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:I-405 (HWY 061) over HWY 47 CONN 1
Structure number:09254B061 00165
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:35.1 ft. [10.7 m]
Total length:39.4 ft. [12.0 m]
Roadway width between curbs:102.0 ft. [31.1 m]
Deck width edge-to-edge:404.9 ft. [123.4 m]
Vertical clearance below bridge:17.4 ft. [5.3 m]
Owner:State Highway Agency [01]
Year built:1967
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Main span material:Concrete [1]
Main span design:Frame [07]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Other [9]

Latest Available Inspection: July 2015 

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:100,000 [as of 2014]
Truck traffic:5% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Superior to present desirable criteria [9]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Better than present minimum criteria [7]
Scour condition:Bridge not over waterway. [N]
Operating rating:97.8 tons [88.9 metric tons]
Inventory rating:65.9 tons [59.9 metric tons]
Sufficiency rating:69.0
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$2,075,000

Previous Inspections 

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
July 201569.0FairFairFairSatisfactoryFO100000
July 201370.0FairSatisfactoryFairSatisfactoryFO93500
July 201162.0FairSatisfactorySatisfactorySatisfactoryFO93500
May 201062.0FairSatisfactorySatisfactorySatisfactoryFO93500
May 200863.0FairSatisfactorySatisfactorySatisfactoryFO93500
May 200662.4FairSatisfactorySatisfactorySatisfactoryFO97700
May 200451.0FairSatisfactorySatisfactoryFairFO97700
March 200262.3Good-GoodGoodFO98900
March 200073.0Good-GoodGoodFO15500
March 199873.0Good-GoodGoodFO15500
March 199673.4Good-GoodGoodFO15500
March 199473.4Good-GoodGoodFO15500
March 199273.4Good-GoodGoodFO15500
March 199073.5Good-GoodGoodFO14600