Structure 39260 · Philadelphia County, PA

42nd Street over Amtrak (pittsburgh Ml)

Carries 42nd Street over Amtrak (pittsburgh Ml), S Of Poplar ST - 3589-g05.

Overall conditionGood

Set by its lowest-rated component: Superstructure at 7 of 9.

How ratings work
Deck8/9 · Very Good
Superstructuresets the rating7/9 · Good
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT308 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 7/9 · sets the ratingSubstructure 8/9

308 ft end to end: about 4 semi-trucks nose to tail. Lengths and the semi-truck 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 through arch.

Built1910rebuilt 2006
Length308.1 ft93.9 m
Daily traffic8,000counted 2016
Last inspectedFebruary 2023every 24 months

Location

StatePennsylvania
CountyPhiladelphia
LocationS Of Poplar ST - 3589-g05
Carries42nd Street
CrossesAmtrak (pittsburgh Ml)
Coordinates39.97220, -75.20860

Physical Characteristics

MaterialSteel
DesignArch - Thru
Total Length308.1 ft (93.9 m)
Max Span262.1 ft (79.9 m)
Deck Width35.4 ft (10.8 m)
Deck Area1014.1 sq m
Main Spans1
Year Built1910 (reconstructed 2006)

Traffic

Avg Daily Traffic8,000 (2016)
Truck Traffic25%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000039260

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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