Structure 8404 · Cambria County, PA

Pa 56 over Stony Creek River

Carries Pa 56 over Stony Creek River, 318 Feet East Of SR 403 S.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT385 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

385 ft end to end, longest span 134 ft: about 5 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 multi-beam bridge.

Built1967rebuilt 2002
Length384.8 ft117.3 m
Daily traffic16,200counted 2024
Last inspectedJuly 2023every 24 months

Location

StatePennsylvania
CountyCambria
Location318 Feet East Of SR 403 S
CarriesPa 56
CrossesStony Creek River
Coordinates40.32246, -78.92361

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length384.8 ft (117.3 m)
Max Span133.9 ft (40.8 m)
Deck Width69.2 ft (21.1 m)
Deck Area2475.0 sq m
Main Spans2
Year Built1967 (reconstructed 2002)

Traffic

Avg Daily Traffic16,200 (2024)
Truck Traffic8%
Lanes On Bridge4

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000000008404

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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