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

Facts 

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:16.4 ft. [5.0 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 2014 

Status:Open, no restriction [A]
Average daily traffic:14,967 [as of 2014]
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 assessed or calculated scour condition. [5]
Operating rating:41.9 tons [38.1 metric tons]
Inventory rating:24.9 tons [22.6 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:49.1
Recommended work:Other structural work, including hydraulic replacements. [38]
Estimated cost of work:$3,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
May 201449.1Functionally obsoleteSatisfactoryFairSatisfactory14967
May 201249.2Functionally obsoleteSatisfactoryFairSatisfactory15132
May 201047.9Functionally obsoleteSatisfactoryFairSatisfactory16794
May 200847.0Functionally obsoleteSatisfactoryFairSatisfactory42570
June 200647.0Functionally obsoleteSatisfactoryFairSatisfactory41576
June 200547.0Functionally obsoleteSatisfactoryFairSatisfactory68915
June 200352.7Structurally deficientPoorFairSatisfactory125644
July 200154.7Structurally deficientPoorFairSatisfactory104176
August 199952.7Functionally obsoleteFairSatisfactorySatisfactory101130
May 199752.7Functionally obsoleteFairSatisfactorySatisfactory96918
May 199552.7Functionally obsoleteFairSatisfactorySatisfactory92250
April 199352.7Functionally obsoleteFairSatisfactorySatisfactory90000
April 199152.7Functionally obsoleteFairSatisfactorySatisfactory52998