S JACKSON ST over Parking garage


+47.59926, -122.32912
47°35'57" N, 122°19'45" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:S JACKSON ST over Parking garage
Structure number:085048000000000
Location:S Jackson St EO 4th Ave S
Route classification:Minor Arterial (Urban) [16]
Length of largest span:23.0 ft. [7.0 m]
Total length:143.1 ft. [43.6 m]
Roadway width between curbs:56.1 ft. [17.1 m]
Deck width edge-to-edge:89.9 ft. [27.4 m]
Owner:City or Municipal Highway Agency [04]
Year built:1910
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 22.5 / HS 25 [9]
Number of main spans:7
Main spans material:Concrete continuous [2]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Epoxy Overlay [5]

Latest Available Inspection: August 2016 

Status:Open, no restriction [A]
Average daily traffic:22,300 [as of 2015]
Truck traffic:10% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:32.7 tons [29.7 metric tons]
Inventory rating:19.8 tons [18.0 metric tons]
Sufficiency rating:72.4
Estimated cost of work:$500,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
August 201672.4Not deficientFairSatisfactoryGood22300
August 201471.7Not deficientSatisfactorySatisfactoryGood19809
September 201271.7Not deficientSatisfactorySatisfactoryGood19809
December 201174.7Not deficientSatisfactorySatisfactoryGood19809
November 201076.8Not deficientSatisfactorySatisfactoryGood19809
December 200897.3Not deficientSatisfactorySatisfactoryGood18300
September 200697.3Not deficientSatisfactorySatisfactoryGood18300
August 200597.3Not deficientGoodGoodGood18300
August 200397.5Not deficientGoodVery GoodGood16300
July 200297.5Not deficientGoodVery GoodVery Good16300
August 200097.8Not deficientGoodVery GoodVery Good13100
July 199997.8Not deficientGoodVery GoodVery Good13100
September 199897.8Not deficientGoodVery GoodVery Good13100
June 199598.0Not deficientGoodGoodGood13100
July 199198.0Not deficientGoodGoodGood13100