Structure 31490 · Somerset County, PA

Pa 653 over Csx Railroad

Carries Pa 653 over Csx Railroad, .2 Mi.e.of Rockwood.

Overall conditionFair

Set by its lowest-rated component: Deck at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT102 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

102 ft end to end. 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
Length102.0 ft31.1 m
Daily traffic537counted 2024
Last inspectedApril 2021every 48 months

Location

StatePennsylvania
CountySomerset
Location.2 Mi.e.of Rockwood
CarriesPa 653
CrossesCsx Railroad
Coordinates39.92105, -79.14795

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length102.0 ft (31.1 m)
Max Span100.1 ft (30.5 m)
Deck Width36.7 ft (11.2 m)
Deck Area348.3 sq m
Main Spans1
Year Built1999

Traffic

Avg Daily Traffic537 (2024)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2021
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000031490

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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