Structure 2718 · Allegheny County, PA

Rankin RD over Long Run Stream

Carries Rankin RD over Long Run Stream, 477001 Rankin RD Bridge.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT32 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

32 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 slab bridge.

Built198145 years old
Length32.2 ft9.8 m
Daily traffic1,500counted 2019
Last inspectedJuly 2023every 24 months

Location

StatePennsylvania
CountyAllegheny
Location477001 Rankin RD Bridge
CarriesRankin RD
CrossesLong Run Stream
Coordinates40.32589, -79.79462

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length32.2 ft (9.8 m)
Max Span28.9 ft (8.8 m)
Deck Width32.2 ft (9.8 m)
Deck Area96.0 sq m
Main Spans1
Year Built1981

Traffic

Avg Daily Traffic1,500 (2019)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical4 — Foundations need monitoring
Structure Number000000000002718

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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