NE 70TH-NE 71ST ST over I-5


+47.67959, -122.32054
47°40'47" N, 122°19'14" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:NE 70TH-NE 71ST ST over I-5
Structure number:0006911A0000000
Location:2.6 N JCT SR 520
Purpose:Carries highway and pedestrian walkway over highway
Route classification:Minor Arterial (Urban) [16]
Length of largest span:79.1 ft. [24.1 m]
Total length:330.1 ft. [100.6 m]
Roadway width between curbs:44.0 ft. [13.4 m]
Deck width edge-to-edge:56.1 ft. [17.1 m]
Vertical clearance below bridge:18.0 ft. [5.5 m]
Skew angle:45°
Owner:State Highway Agency [01]
Year built:1962
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:5
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: May 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:7,394 [as of 2012]
Truck traffic:5% of total traffic
Deck condition:Satisfactory [6 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]
Operating rating:85.8 tons [78.0 metric tons]
Inventory rating:50.9 tons [46.3 metric tons]
Sufficiency rating:89.8
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$7,392,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
May 201789.8FairSatisfactoryGoodGoodFO7394
May 201589.8FairSatisfactoryGoodGoodFO7394
May 201389.8FairSatisfactoryGoodGoodFO7591
May 201189.8FairSatisfactoryGoodGoodFO7591
June 200986.7FairSatisfactorySatisfactorySatisfactoryFO7992
June 200786.7FairSatisfactorySatisfactorySatisfactoryFO8000
September 200586.7FairSatisfactorySatisfactorySatisfactoryFO8000
November 200386.7FairSatisfactorySatisfactorySatisfactoryFO8000
December 200189.7FairSatisfactorySatisfactoryGoodFO8000
June 199959.6PoorPoorPoorGoodSD5400
June 199759.6PoorPoorPoorGoodSD5400
June 199562.6PoorPoorPoorGoodSD5400
June 199393.5FairGoodSatisfactoryGood-2980
March 199162.2PoorSeriousPoorGoodSD2980