Structure 2339 · Allegheny County, PA

Main ST over Robinson Run

Carries Main ST over Robinson Run, 214003 Main St(n&s Fayet).

Overall conditionPoor

Set by its lowest-rated component: Superstructure at 4 of 9.

How ratings work
Deck5/9 · Fair
Superstructuresets the rating4/9 · Poor
Substructure5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT63 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 4/9 · sets the ratingSubstructure 5/9

63 ft end to end, longest span 30 ft. 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 multi-beam bridge.

Built1920106 years old
Length63.0 ft19.2 m
Daily traffic300counted 2018
Last inspectedMarch 2023every 24 months

Location

StatePennsylvania
CountyAllegheny
Location214003 Main St(n&s Fayet)
CarriesMain ST
CrossesRobinson Run
Coordinates40.38350, -80.21120

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length63.0 ft (19.2 m)
Max Span29.9 ft (9.1 m)
Deck Width19.4 ft (5.9 m)
Deck Area113.3 sq m
Main Spans2
Year Built1920

Traffic

Avg Daily Traffic300 (2018)
Truck Traffic5%
Lanes On Bridge1

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical4 — Foundations need monitoring
Structure Number000000000002339

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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