Structure 754 · Allegheny County, PA

Coraopolis BLVD over Montour Run

Carries Coraopolis BLVD over Montour Run, Groveton Inter 79 & 51.

Overall conditionFair

Set by its lowest-rated component: Culvert at 6 of 9.

How ratings work
Culvertsets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT30 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 30 ft across. 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, so those are drawn as typical for a culvert.

Built197353 years old
Length29.9 ft9.1 m
Daily traffic10,961counted 2024
Last inspectedDecember 2023every 24 months

Location

StatePennsylvania
CountyAllegheny
LocationGroveton Inter 79 & 51
CarriesCoraopolis BLVD
CrossesMontour Run
Coordinates40.50364, -80.13629

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length29.9 ft (9.1 m)
Max Span29.9 ft (9.1 m)
Deck Area254.8 sq m
Main Spans1
Year Built1973

Traffic

Avg Daily Traffic10,961 (2024)
Truck Traffic5%
Lanes On Bridge4

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical7 — Countermeasures installed
Structure Number000000000000754

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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