Structure 2397 · Allegheny County, PA

Bigelow Bv over Bloomfield Bridge Ramp F

Carries Bigelow Bv over Bloomfield Bridge Ramp F, 009 Bigelow BLVD Underpas.

Overall conditionFair

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

How ratings work
Culvertsets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT27 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 27 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.

Built198640 years old
Length26.9 ft8.2 m
Daily traffic20,100counted 2020
Last inspectedSeptember 2024every 24 months

Location

StatePennsylvania
CountyAllegheny
Location009 Bigelow BLVD Underpas
CarriesBigelow Bv
CrossesBloomfield Bridge Ramp F
Coordinates40.45872, -79.95758

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length26.9 ft (8.2 m)
Max Span26.9 ft (8.2 m)
Deck Width56.4 ft (17.2 m)
Deck Area141.0 sq m
Main Spans1
Year Built1986

Traffic

Avg Daily Traffic20,100 (2020)
Truck Traffic5%
Lanes On Bridge4
Lanes Under Bridge1

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000002397

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.

Nearby Bridges