SENECA ST over I-5


+47.60896, -122.33084
47°36'32" N, 122°19'51" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:SENECA ST over I-5
Structure number:0007110E0000000
Location:1.2 N JCT I-90
Purpose:Carries highway and pedestrian walkway over highway
Route classification:Minor Arterial (Urban) [16]
Length of largest span:96.1 ft. [29.3 m]
Total length:250.0 ft. [76.2 m]
Roadway width between curbs:36.1 ft. [11.0 m]
Deck width edge-to-edge:61.7 ft. [18.8 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:99°
Owner:State Highway Agency [01]
Year built:1964
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:3
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: August 2015

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:5,000 [as of 2002]
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:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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:90.1 tons [81.9 metric tons]
Inventory rating:53.5 tons [48.6 metric tons]
Sufficiency rating:89.2

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
August 201589.2FairSatisfactoryGoodGoodFO5000
August 201389.2FairSatisfactoryGoodGoodFO5000
August 201188.0FairSatisfactorySatisfactoryGoodFO6350
August 200988.0FairSatisfactorySatisfactoryGoodFO6350
August 200788.0FairSatisfactorySatisfactoryGoodFO6350
October 200588.0FairSatisfactorySatisfactoryGoodFO6350
December 200388.0FairSatisfactorySatisfactoryGoodFO6350
November 200188.0FairSatisfactorySatisfactoryGoodFO6350
September 199985.0FairSatisfactorySatisfactoryGoodFO6350
June 199785.0FairSatisfactorySatisfactoryGoodFO6350
June 199584.9FairSatisfactorySatisfactoryGoodFO6350
June 199386.2FairSatisfactorySatisfactoryGoodFO4800
October 199190.2FairSatisfactorySatisfactoryGood-4800