Structure 41918 · Allegheny County, PA

International DR over Business 376 SR 3160

Carries International DR over Business 376 SR 3160, 1 Mile S. Of 3089 Intch.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT159 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

159 ft end to end, longest span 78 ft: about 2 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.

Built200323 years old
Length159.1 ft48.5 m
Daily traffic2,900counted 2024
Last inspectedOctober 2023every 48 months

Location

StatePennsylvania
CountyAllegheny
Location1 Mile S. Of 3089 Intch
CarriesInternational DR
CrossesBusiness 376 SR 3160
Coordinates40.50866, -80.25068

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Multiple
Total Length159.1 ft (48.5 m)
Max Span78.1 ft (23.8 m)
Deck Width66.9 ft (20.4 m)
Deck Area989.4 sq m
Main Spans2
Year Built2003

Traffic

Avg Daily Traffic2,900 (2024)
Truck Traffic10%
Lanes On Bridge4
Lanes Under Bridge8

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000041918

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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