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FORT DUQUESNE BR over FT DUQ BR SB,ALLEG RVR

Map

Coordinates:
+40.44528, -80.00956
40°26'43" N, 80°00'34" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:FORT DUQUESNE BR over FT DUQ BR SB,ALLEG RVR
Structure number:000000000001023
Old structure number:020279006404520 (from 1992 edition)
Location:I279 NB FT.DUQ.BR.
Purpose:Carries highway over highway and waterway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:422.9 ft. [128.9 m]
Total length:921.0 ft. [280.7 m]
Roadway width between curbs:53.5 ft. [16.3 m]
Deck width edge-to-edge:61.4 ft. [18.7 m]
Vertical clearance above deck:18.0 ft. [5.5 m]
Vertical clearance below bridge:495.1 ft. [150.9 m]
Owner:State Highway Agency [01]
Year built:1959
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Main span material:Steel [3]
Main span design:Arch - Thru [12]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Latex Concrete or similar additive [3]

Latest Available Inspection: May 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:13,879 [as of 2016]
Truck traffic:8% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Better than present minimum criteria [7]
Channel protection:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:41.9 tons [38.1 metric tons]
Inventory rating:25.0 tons [22.7 metric tons]
Sufficiency rating:49.8
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$3,478,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
May 201649.8FairSatisfactoryFairSatisfactoryFO13879
May 201449.1FairSatisfactoryFairSatisfactoryFO14967
May 201249.2FairSatisfactoryFairSatisfactoryFO15132
May 201047.9FairSatisfactoryFairSatisfactoryFO16794
May 200847.0FairSatisfactoryFairSatisfactoryFO42570
June 200647.0FairSatisfactoryFairSatisfactoryFO41576
June 200547.0FairSatisfactoryFairSatisfactoryFO68915
June 200352.7PoorPoorFairSatisfactorySD125644
July 200154.7PoorPoorFairSatisfactorySD104176
August 199952.7FairFairSatisfactorySatisfactoryFO101130
May 199752.7FairFairSatisfactorySatisfactoryFO96918
May 199552.7FairFairSatisfactorySatisfactoryFO92250
April 199352.7FairFairSatisfactorySatisfactoryFO90000
April 199152.7FairFairSatisfactorySatisfactoryFO52998

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Closed Web/Box Girderlinear ft.1,0771,0572000
Steel Protective Coatingsq. ft.21,50621,506000
Steel Girder/Beamlinear ft.1,4501,4252500
Steel Protective Coatingsq. ft.21,50621,506000
Steel Stringerlinear ft.4,2604,260000
Steel Protective Coatingsq. ft.10,75310,753000
Deck
Reinforced Concrete Decksq. ft.59,82958,98584400
Wearing Surfacessq. ft.50,95750,23172600
Superstructure
Steel Archlinear ft.852852000
Steel Protective Coatingsq. ft.10,75310,753000
Steel Main Cablelinear ft.3,2783,17601020
Steel Floor Beamlinear ft.1,5621,5422000
Steel Protective Coatingsq. ft.53,76653,766000
Substructure
Steel Columneach44000
Steel Protective Coatingsq. ft.21,50621,506000
Joints
Assembly without Seal Jointlinear ft.118117100
Other Jointlinear ft.225225000
Bearings
Movable Bearingeach99000
Steel Protective Coatingsq. ft.21,50621,506000
Fixed Bearingeach99000
Steel Protective Coatingsq. ft.21,50621,506000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.1,8051,797260