Structure 31447 · Somerset County, PA

Pa 403 over Stonycreek River

Carries Pa 403 over Stonycreek River, Kantner.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
Channelnot part of overall4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT261 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

261 ft end to end, longest span 63 ft: 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 box-beam bridge.

Built1971rebuilt 2011
Length261.2 ft79.6 m
Daily traffic1,033counted 2023
Last inspectedDecember 2024every 24 months

Location

StatePennsylvania
CountySomerset
LocationKantner
CarriesPa 403
CrossesStonycreek River
Coordinates40.10315, -78.93259

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length261.2 ft (79.6 m)
Max Span63.0 ft (19.2 m)
Deck Width47.9 ft (14.6 m)
Deck Area1162.2 sq m
Main Spans4
Year Built1971 (reconstructed 2011)

Traffic

Avg Daily Traffic1,033 (2023)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000000031447

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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