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 

Good/Fair/Poor Condition:Fair
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. RatingConditionDeckSuperstructureSubstructureSD/FOADT
August 201672.4FairFairSatisfactoryGood-22300
August 201471.7FairSatisfactorySatisfactoryGood-19809
September 201271.7FairSatisfactorySatisfactoryGood-19809
December 201174.7FairSatisfactorySatisfactoryGood-19809
November 201076.8FairSatisfactorySatisfactoryGood-19809
December 200897.3FairSatisfactorySatisfactoryGood-18300
September 200697.3FairSatisfactorySatisfactoryGood-18300
August 200597.3GoodGoodGoodGood-18300
August 200397.5GoodGoodVery GoodGood-16300
July 200297.5GoodGoodVery GoodVery Good-16300
August 200097.8GoodGoodVery GoodVery Good-13100
July 199997.8GoodGoodVery GoodVery Good-13100
September 199897.8GoodGoodVery GoodVery Good-13100
June 199598.0GoodGoodGoodGood-13100
July 199198.0GoodGoodGoodGood-13100