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ALLENS LANE over SEPTA; CHESTNUT HILL

Map 

Coordinates:
+40.06359, -75.18739
40°03'49" N, 75°11'15" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:ALLENS LANE over SEPTA; CHESTNUT HILL
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:17.4 ft. [5.3 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:Concrete continuous [2]
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 2014 

Status:Posted for load [P]
Average daily traffic:6,106 [as of 2014]
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]
Operating rating:38.8 tons [35.3 metric tons]
Inventory rating:22.9 tons [20.8 metric tons]
Evaluation:Structurally deficient [1]
Sufficiency rating:26.5
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$1,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
August 201426.5Structurally deficientSeriousPoorPoor6106
October 201226.9Structurally deficientSeriousPoorFair6171
October 201023.8Structurally deficientSeriousPoorFair6704
November 200923.8Structurally deficientSeriousPoorFair6689
November 200823.8Structurally deficientSeriousPoorFair6689
January 200842.0Structurally deficientSeriousPoorFair6661
November 200623.9Structurally deficientSeriousPoorFair6595
November 200523.3Structurally deficientSeriousPoorFair6674
October 200326.5Structurally deficientSeriousPoorFair6504
October 200229.4Structurally deficientPoorPoorFair6345
November 200126.6Structurally deficientSeriousPoorFair6345
September 200026.4Structurally deficientSeriousPoorFair6528
August 199929.3Structurally deficientPoorPoorFair6425
July 199846.8Structurally deficientPoorPoorFair6330
July 199746.9Structurally deficientPoorPoorFair6230
August 199624.0Structurally deficientPoorPoorFair6132
July 199417.4Structurally deficientPoorPoorFair10306
August 199317.7Structurally deficientPoorPoorFair10124
July 199217.7Structurally deficientPoorPoorFair10124
March 199118.6Structurally deficientPoorPoorFair9500