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LIBERTY BRIDGE over MON R,I376,0837,2 AV,ARL

Map

Coordinates:
+40.42931, -79.99915
40°25'46" N, 79°59'57" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:LIBERTY BRIDGE over MON R,I376,0837,2 AV,ARL
Structure number:000000000001808
Old structure number:023069011001350 (from 1992 edition)
Location:LIBERTY BRIDGE
Purpose:Carries highway and pedestrian walkway over highway, waterway, and railroad
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:470.2 ft. [143.3 m]
Total length:2663.2 ft. [811.7 m]
Roadway width between curbs:56.1 ft. [17.1 m]
Deck width edge-to-edge:65.9 ft. [20.1 m]
Vertical clearance below bridge:1666.7 ft. [508.0 m]
Owner:State Highway Agency [01]
Year built:1928
Year reconstructed:1983
Historic significance:Bridge is on the National Register of Historic Places [1]
Design load:MS 18 / HS 20 [5]
Number of main spans:15
Main spans material:Steel continuous [4]
Main spans design:Truss - Deck [09]
Deck type:Closed Grating [4]
Wearing surface:Bituminous [6]

Latest Available Inspection: April 2017

Good/Fair/Poor Condition:Poor
Status:Posted for load [P]
Average daily traffic:42,061 [as of 2017]
Truck traffic:3% of total traffic
Deck condition:Poor [4 out of 9]
Superstructure condition:Poor [4 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
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 corrrective action [3]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank protection is being eroded. River control devices and/or embankment have major damage. Trees and rush restrict the channel. [5]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:46.1
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$17,147,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
April 2017PoorPoorPoorFair4206146.1
April 2015PoorPoorPoorFair3765746.1
April 2013PoorPoorPoorFair3765746.1
April 2011PoorPoorPoorFair1653121.5
April 2009FairFairFairFair2091342.7
April 2007FairFairFairFair4533937.5
April 2005FairFairFairFair4370137.3
2004Poor--Poor4206146.0
April 2003FairFairFairFair4504837.3
April 2001FairFairFairFair6302737.3
April 1999PoorFairPoorFair6302722.3
July 1997PoorFairPoorFair5962651.0

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.1,5251,18633900
Steel Protective Coatingsq. ft.53,76653,766000
Steel Stringerlinear ft.21,12520,2926062270
Steel Protective Coatingsq. ft.86,02586,025000
Deck
Reinforced Concrete Decksq. ft.12,6109,6822,92800
Wearing Surfacessq. ft.9,88409,88400
Superstructure
Steel Trusslinear ft.2,2401,0378063961
Steel Protective Coatingsq. ft.43,01343,013000
Steel Floor Beamlinear ft.5,6245,351234390
Steel Protective Coatingsq. ft.129,038129,038000
Substructure
Steel Columneach40040
Steel Protective Coatingsq. ft.21,50621,506000
Reinforced Concrete Columneach108200
Reinforced Concrete Pier Walllinear ft.27922831200
Reinforced Concrete Abutmentlinear ft.17610721444
Reinforced Concrete Pile Cap/Footinglinear ft.33000
Reinforced Concrete Pier Caplinear ft.110971300
Deck
Concrete Filled Grid Decksq. ft.140,29223,016117,27600
Wearing Surfacessq. ft.140,29223,016117,27600
Joints
Compression Jointlinear ft.4003760024
Other Jointlinear ft.2451776800
Bearings
Movable Bearingeach1919000
Steel Protective Coatingsq. ft.43,01343,013000
Fixed Bearingeach38172100
Steel Protective Coatingsq. ft.64,51964,519000
Pot Bearingeach22000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.5,3304,98234800