Structure 2335 · Allegheny County, PA

Coraopolis Imp. RD over Mcclarens Run

Carries Coraopolis Imp. RD over Mcclarens Run, Mc06 Mcclarens Run # 6.

Overall conditionFair

Set by its lowest-rated component: Culvert at 5 of 9.

How ratings work
Culvertsets the rating5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT26 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 5/9

A culvert 26 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.

Built198343 years old
Length25.9 ft7.9 m
Daily traffic1,526counted 2005
Last inspectedSeptember 2023every 24 months

Location

StatePennsylvania
CountyAllegheny
LocationMc06 Mcclarens Run # 6
CarriesCoraopolis Imp. RD
CrossesMcclarens Run
Coordinates40.47456, -80.21127

Physical Characteristics

MaterialSteel
DesignCulvert
Total Length25.9 ft (7.9 m)
Max Span25.9 ft (7.9 m)
Deck Area52.9 sq m
Main Spans1
Year Built1983

Traffic

Avg Daily Traffic1,526 (2005)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000002335

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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