Share:

ALLENS LANE over SEPTA CHESTNUT HILL W BR

Map

Coordinates:
+40.05802, -75.19534
40°03'29" N, 75°11'43" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:ALLENS LANE over SEPTA CHESTNUT HILL W BR
Structure number:000000000039045
Old structure number:674003010007670 (from 1992 edition)
Location:CHESTNUT HILL 3479 J01
Purpose:Carries highway and pedestrian walkway over railroad
Route classification:Collector (Urban) [17]
Length of largest span:28.9 ft. [8.8 m]
Total length:30.8 ft. [9.4 m]
Roadway width between curbs:25.9 ft. [7.9 m]
Deck width edge-to-edge:42.7 ft. [13.0 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:22°
Owner:State Highway Agency [01]
Year built:1908
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
Design load:MS 18 / HS 20 [5]
Main span material:Steel [3]
Main span design:Girder and floorbeam system [03]
Deck type:Not applicable [N]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: August 2016

Good/Fair/Poor Condition:Poor
Status:Posted for load [P]
Average daily traffic:5,294 [as of 2016]
Truck traffic:2% of total traffic
Deck condition:Serious [3 out of 9]
Superstructure condition:Poor [4 out of 9]
Substructure condition:Poor [4 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 replacement [2]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:23.4
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$741,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2016PoorSeriousPoorPoor529423.4
August 2014PoorSeriousPoorPoor610626.5
October 2012PoorSeriousPoorFair617126.9
October 2010PoorSeriousPoorFair670423.8
November 2009PoorSeriousPoorFair668923.8
November 2008PoorSeriousPoorFair668923.8
January 2008PoorSeriousPoorFair666142.0
November 2006PoorSeriousPoorFair659523.9
November 2005PoorSeriousPoorFair667423.3
October 2003PoorSeriousPoorFair650426.5
October 2002PoorPoorPoorFair634529.4
November 2001PoorSeriousPoorFair634526.6
September 2000PoorSeriousPoorFair652826.4
August 1999PoorPoorPoorFair642529.3
July 1998PoorPoorPoorFair633046.8
July 1997PoorPoorPoorFair623046.9
August 1996PoorPoorPoorFair613224.0
July 1994PoorPoorPoorFair1030617.4
August 1993PoorPoorPoorFair1012417.7
July 1992PoorPoorPoorFair1012417.7
March 1991PoorPoorPoorFair950018.6

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.600006000
Deck
Reinforced Concrete Decksq. ft.1,3721,13923300
Substructure
Masonry Abutmentlinear ft.2200176404
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.3131000
Steel Protective Coatingsq. ft.10,75310,753000
Reinforced Concrete Bridge Raillinear ft.3131000