Structure 2940 · Allegheny County, PA

Ramp Mt-b over SR 0376 EB Wb(ramp Mt-c)

Carries Ramp Mt-b over SR 0376 EB Wb(ramp Mt-c), Ramp Mt-b Over SR 376.

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 FT352 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

352 ft end to end, longest span 207 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.

Built1992rebuilt 2005
Length352.0 ft107.3 m
Daily traffic4,541counted 2024
Last inspectedAugust 2023every 24 months

Location

StatePennsylvania
CountyAllegheny
LocationRamp Mt-b Over SR 376
CarriesRamp Mt-b
CrossesSR 0376 EB Wb(ramp Mt-c)
Coordinates40.48679, -80.26680

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length352.0 ft (107.3 m)
Max Span207.0 ft (63.1 m)
Deck Width51.5 ft (15.7 m)
Deck Area1684.6 sq m
Main Spans2
Year Built1992 (reconstructed 2005)

Traffic

Avg Daily Traffic4,541 (2024)
Truck Traffic6%
Lanes On Bridge2
Lanes Under Bridge18

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000002940

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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