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S JACKSON ST over ST TUNNEL

Map 

Coordinates:
+47.59913, -122.32913
47°35'57" N, 122°19'45" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:S JACKSON ST over ST TUNNEL
Structure number:085786000000000
Location:S Jackson St WO 5th Ave S
Purpose:Carries highway and pedestrian walkway over railroad
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:103.0 ft. [31.4 m]
Total length:146.0 ft. [44.5 m]
Roadway width between curbs:56.1 ft. [17.1 m]
Deck width edge-to-edge:89.9 ft. [27.4 m]
Vertical clearance below bridge:15.7 ft. [4.8 m]
Owner:City or Municipal Highway Agency [04]
Year built:1987
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:Prestressed concrete [5]
Main spans design:Stringer/Multi-beam or girder [02]
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:13,835 [as of 2010]
Truck traffic:10% 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 replacement [2]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:98.0 tons [89.1 metric tons]
Inventory rating:71.3 tons [64.8 metric tons]
Sufficiency rating:93.6
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$13,140,000

Previous Inspections 

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
August 201593.6FairSatisfactoryGoodGoodFO13835
August 201393.6FairSatisfactoryGoodGoodFO13835
August 201293.6FairSatisfactoryGoodGoodFO13835
December 201193.6FairSatisfactoryGoodGoodFO13835
November 200997.3FairSatisfactoryGoodGood-18300
December 200897.3FairSatisfactoryGoodGood-18300
September 200697.3FairSatisfactoryGoodGood-18300
August 200597.3FairSatisfactoryGoodGood-18300
August 200397.5GoodGoodGoodGood-16300
July 200297.5GoodVery GoodVery GoodVery Good-16300
August 200097.8GoodVery GoodVery GoodVery Good-13100
July 199997.8GoodVery GoodVery GoodVery Good-13100
September 199897.8GoodVery GoodVery GoodVery Good-13100
June 199598.0GoodVery GoodVery GoodVery Good-13100
July 199198.0GoodVery GoodVery GoodVery Good-13100