Structure 3819 · Beaver County, PA

Pa Tpk (i-76) over Sr18 Lr77

Carries Pa Tpk (i-76) over Sr18 Lr77, Beaver Valley Interchange.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT87 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

87 ft end to end. Lengths and the car 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 rigid-frame bridge.

Built1952rebuilt 1994
Length86.9 ft26.5 m
Daily traffic21,390counted 2001
Last inspectedApril 2024every 24 months

Location

StatePennsylvania
CountyBeaver
LocationBeaver Valley Interchange
CarriesPa Tpk (i-76)
CrossesSr18 Lr77
Coordinates40.81404, -80.32502

Physical Characteristics

MaterialConcrete
DesignFrame
Total Length86.9 ft (26.5 m)
Max Span76.1 ft (23.2 m)
Deck Width97.4 ft (29.7 m)
Deck Area787.0 sq m
Main Spans1
Year Built1952 (reconstructed 1994)

Traffic

Avg Daily Traffic21,390 (2001)
Truck Traffic28%
Lanes On Bridge6
Lanes Under Bridge8

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000003819

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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