Structure 39236 · Philadelphia County, PA

Martins Mill Road over Csx Septa (nwtn Br)

Carries Martins Mill Road over Csx Septa (nwtn Br), At Longshore Avenue 18g06.

Overall conditionGood

Set by its lowest-rated component: Deck and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT113 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

113 ft end to end, longest span 52 ft. Lengths and the car on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a box-beam bridge.

Built199927 years old
Length112.9 ft34.4 m
Daily traffic6,800counted 1981
Last inspectedJune 2022every 24 months

Location

StatePennsylvania
CountyPhiladelphia
LocationAt Longshore Avenue 18g06
CarriesMartins Mill Road
CrossesCsx Septa (nwtn Br)
Coordinates40.05721, -75.09348

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length112.9 ft (34.4 m)
Max Span51.8 ft (15.8 m)
Deck Width46.3 ft (14.1 m)
Deck Area485.0 sq m
Main Spans2
Year Built1999

Traffic

Avg Daily Traffic6,800 (1981)
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2022
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000039236

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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