Structure 41969 · Allegheny County, PA

Pa Tpk (toll 43) over Peters CR RD Sr0051

Carries Pa Tpk (toll 43) over Peters CR RD Sr0051, Ramp X Over SR 0051.

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
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,172 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

1,172 ft end to end, longest span 186 ft: about 3.3 football fields. 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.

Built200224 years old
Length1171.9 ft357.2 m
Daily traffic3,617counted 2008
Last inspectedApril 2023every 24 months

Location

StatePennsylvania
CountyAllegheny
LocationRamp X Over SR 0051
CarriesPa Tpk (toll 43)
CrossesPeters CR RD Sr0051
Coordinates40.29167, -79.91667

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1171.9 ft (357.2 m)
Max Span186.0 ft (56.7 m)
Deck Width34.4 ft (10.5 m)
Deck Area3750.6 sq m
Main Spans7
Year Built2002

Traffic

Avg Daily Traffic3,617 (2008)
Truck Traffic2%
Lanes On Bridge1
Lanes Under Bridge6

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000041969

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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