Structure 1937 · Allegheny County, PA

Rochester Rd. over Lowries Run

Carries Rochester Rd. over Lowries Run, 3000 North Of SR 4022.

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 FT62 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 5/9

A culvert 62 ft across with 2 openings. 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.

Built194185 years old
Length62.0 ft18.9 m
Daily traffic2,901counted 2024
Last inspectedFebruary 2024every 24 months

Location

StatePennsylvania
CountyAllegheny
Location3000 North Of SR 4022
CarriesRochester Rd.
CrossesLowries Run
Coordinates40.54592, -80.05451

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length62.0 ft (18.9 m)
Max Span29.9 ft (9.1 m)
Deck Width50.5 ft (15.4 m)
Deck Area291.1 sq m
Main Spans2
Year Built1941

Traffic

Avg Daily Traffic2,901 (2024)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical4 — Foundations need monitoring
Structure Number000000000001937

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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