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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:Minor Arterial (Urban) [16]
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 

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]
Evaluation:Functionally obsolete [2]
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. ratingEvaluationDeckSuper.Sub.ADT
August 201593.6Functionally obsoleteSatisfactoryGoodGood13835
August 201393.6Functionally obsoleteSatisfactoryGoodGood13835
August 201293.6Functionally obsoleteSatisfactoryGoodGood13835
December 201193.6Functionally obsoleteSatisfactoryGoodGood13835
November 200997.3Not deficientSatisfactoryGoodGood18300
December 200897.3Not deficientSatisfactoryGoodGood18300
September 200697.3Not deficientSatisfactoryGoodGood18300
August 200597.3Not deficientSatisfactoryGoodGood18300
August 200397.5Not deficientGoodGoodGood16300
July 200297.5Not deficientVery GoodVery GoodVery Good16300
August 200097.8Not deficientVery GoodVery GoodVery Good13100
July 199997.8Not deficientVery GoodVery GoodVery Good13100
September 199897.8Not deficientVery GoodVery GoodVery Good13100
June 199598.0Not deficientVery GoodVery GoodVery Good13100
July 199198.0Not deficientVery GoodVery GoodVery Good13100