SW 6TH AVE(CONN3) over I-405 (HWY 61)


+45.50755, -122.68415
45°30'27" N, 122°41'03" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:SW 6TH AVE(CONN3) over I-405 (HWY 61)
Structure number:09158 061C00102
Location:0.4 MI S OF SW 12TH AVE
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:84.0 ft. [25.6 m]
Total length:267.1 ft. [81.4 m]
Roadway width between curbs:40.0 ft. [12.2 m]
Deck width edge-to-edge:50.5 ft. [15.4 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:39°
Owner:State Highway Agency [01]
Year built:1964
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 18 / H 20 [4]
Number of main spans:4
Main spans material:Concrete continuous [2]
Main spans design:Box beam or girders - Multiple [05]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: July 2015

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:125,300 [as of 2014]
Truck traffic:5% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry appraisal:Basically intolerable requiring high priority of corrrective action [3]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Better than present minimum criteria [7]
Scour condition:Bridge not over waterway. [N]
Operating rating:25.0 tons [22.7 metric tons]
Inventory rating:19.2 tons [17.5 metric tons]
Sufficiency rating:33.3
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$2,244,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
July 201533.3FairSatisfactoryFairSatisfactoryFO125300
July 201333.3FairSatisfactoryFairSatisfactoryFO119800
July 201143.3FairSatisfactorySatisfactoryGoodFO119800
May 201032.3FairFairFairGoodFO78800
May 200833.4FairFairFairGoodFO78800
May 200642.7FairFairFairGoodFO24071
May 200463.3FairFairFairGoodFO24071
March 200278.2FairSatisfactoryGoodGoodFO23370
March 200076.8FairSatisfactoryGoodGoodFO17400
March 199878.9GoodGoodGoodGoodFO17400
March 19960.0GoodGoodGoodGood-17400
March 19940.0FairSatisfactorySatisfactoryGood-17400
March 19920.0FairSatisfactorySatisfactoryGood-17400
March 19900.0FairSatisfactorySatisfactoryGood-16150