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SEATTLE BLVD over ST TUNNEL

Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:SEATTLE BLVD over ST TUNNEL
Structure number:085041000000000
Location:Seattle Blvd EO 4th Ave S
Purpose:Carries highway and pedestrian walkway over railroad
Route classification:Minor Arterial (Urban) [16]
Length of largest span:75.1 ft. [22.9 m]
Total length:287.1 ft. [87.5 m]
Roadway width between curbs:67.9 ft. [20.7 m]
Deck width edge-to-edge:101.1 ft. [30.8 m]
Vertical clearance below bridge:19.0 ft. [5.8 m]
Skew angle:37°
Owner:City or Municipal Highway Agency [04]
Year built:1910
Year reconstructed:1981
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:3
Main spans material:Steel [3]
Main spans design:Girder and floorbeam system [03]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: August 2015 

Status:Open, no restriction [A]
Average daily traffic:5,347 [as of 2013]
Truck traffic:5% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
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:31.7 tons [28.8 metric tons]
Inventory rating:18.8 tons [17.1 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:54.5
Recommended work:Other structural work, including hydraulic replacements. [38]
Estimated cost of work:$1,898,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
August 201554.5Functionally obsoleteGoodSatisfactorySatisfactory5347
August 201354.5Functionally obsoleteGoodSatisfactorySatisfactory5347
December 201250.5Functionally obsoleteGoodSatisfactorySatisfactory25835
December 201150.5Functionally obsoleteGoodSatisfactorySatisfactory25835
November 200950.5Functionally obsoleteGoodSatisfactorySatisfactory25835
September 200850.9Functionally obsoleteGoodSatisfactorySatisfactory23400
September 200674.0Functionally obsoleteGoodSatisfactorySatisfactory23400
August 200574.0Functionally obsoleteGoodSatisfactorySatisfactory23400
April 200374.4Functionally obsoleteGoodSatisfactorySatisfactory20000
July 200278.6Functionally obsoleteGoodSatisfactorySatisfactory20000
July 200078.6Functionally obsoleteGoodSatisfactorySatisfactory20000
July 199978.6Functionally obsoleteGoodSatisfactoryGood20000
September 199878.6Functionally obsoleteGoodSatisfactoryGood20000
August 199778.7Functionally obsoleteGoodSatisfactoryGood18900
June 199579.2Functionally obsoleteGoodSatisfactoryGood18900
July 199179.2Functionally obsoleteGoodSatisfactoryGood18900