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 

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]
Evaluation:Functionally obsolete [2]
Sufficiency rating:89.2

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
August 201589.2Functionally obsoleteSatisfactoryGoodGood5000
August 201389.2Functionally obsoleteSatisfactoryGoodGood5000
August 201188.0Functionally obsoleteSatisfactorySatisfactoryGood6350
August 200988.0Functionally obsoleteSatisfactorySatisfactoryGood6350
August 200788.0Functionally obsoleteSatisfactorySatisfactoryGood6350
October 200588.0Functionally obsoleteSatisfactorySatisfactoryGood6350
December 200388.0Functionally obsoleteSatisfactorySatisfactoryGood6350
November 200188.0Functionally obsoleteSatisfactorySatisfactoryGood6350
September 199985.0Functionally obsoleteSatisfactorySatisfactoryGood6350
20000.0Not applicable---197123
June 199785.0Functionally obsoleteSatisfactorySatisfactoryGood6350
June 199584.9Functionally obsoleteSatisfactorySatisfactoryGood6350
June 199386.2Functionally obsoleteSatisfactorySatisfactoryGood4800
October 199190.2Not deficientSatisfactorySatisfactoryGood4800