Structure 31433 · Somerset County, PA

Pa 281 over Laurel Hill Creek

Carries Pa 281 over Laurel Hill Creek, Confluence Borough.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure8/9 · Very Good
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 FT128 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 8/9Substructure 6/9 · sets the rating

128 ft end to end, longest span 63 ft. 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.

Built1935rebuilt 2010
Length128.0 ft39 m
Daily traffic1,259counted 2024
Last inspectedSeptember 2024every 24 months

Location

StatePennsylvania
CountySomerset
LocationConfluence Borough
CarriesPa 281
CrossesLaurel Hill Creek
Coordinates39.81392, -79.35542

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length128.0 ft (39 m)
Max Span63.0 ft (19.2 m)
Deck Width32.2 ft (9.8 m)
Deck Area382.2 sq m
Main Spans2
Year Built1935 (reconstructed 2010)

Traffic

Avg Daily Traffic1,259 (2024)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical4 — Foundations need monitoring
Structure Number000000000031433

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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