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MOUNT AIRY AVENUE over SEPTA;CHESTNUT HILL BR.

Map

Coordinates:
+40.06361, -75.18739
40°03'49" N, 75°11'15" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:MOUNT AIRY AVENUE over SEPTA;CHESTNUT HILL BR.
Structure number:000000000039080
Old structure number:674021001015970 (from 1992 edition)
Location:.3MI.NE.GERMANTOWN3369K10
Purpose:Carries highway and pedestrian walkway over railroad
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:49.9 ft. [15.2 m]
Total length:53.2 ft. [16.2 m]
Roadway width between curbs:29.9 ft. [9.1 m]
Deck width edge-to-edge:45.6 ft. [13.9 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:14°
Owner:State Highway Agency [01]
Year built:1939
Year reconstructed:1976
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
Design load:M 18 / H 20 [4]
Main span material:Steel [3]
Main span 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 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:6,366 [as of 2017]
Truck traffic:3% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Basically intolerable requiring high priority of corrrective action [3]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Better than present minimum criteria [7]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:60.5
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$690,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2016FairSatisfactoryFairFair636660.5
August 2014FairSatisfactoryFairFair659662.4
November 2012FairSatisfactoryFairFair663262.4
November 2010FairSatisfactoryFairFair651162.5
November 2008FairSatisfactoryFairFair649760.5
November 2006FairSatisfactoryFairFair1139461.6
October 2004FairSatisfactoryFairFair1128161.6
October 2002FairSatisfactoryFairFair1099363.0
October 2000FairSatisfactoryFairFair1097763.0
November 1998FairSatisfactorySatisfactoryFair1080466.1
October 1996FairSatisfactorySatisfactorySatisfactory1031170.7
November 1994FairGoodSatisfactorySatisfactory977673.3
March 1993FairGoodSatisfactorySatisfactory960376.4
March 1991FairGoodSatisfactorySatisfactory923476.5

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.29714370804
Deck
Reinforced Concrete Decksq. ft.2,4192,419000
Substructure
Reinforced Concrete Abutmentlinear ft.1490139100
Bearings
Enclosed/Concealed Bearingeach1212000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.106106000
Steel Protective Coatingsq. ft.10,75310,753000