Structure 1229 · Allegheny County, PA

Baum BLVD over Csx Rr Pat East Busway

Carries Baum BLVD over Csx Rr Pat East Busway, 1 Mi.s.of Bloomfield Br..

Overall conditionFair

Set by its lowest-rated component: Superstructure and Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT310 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 6/9 · sets the rating

310 ft end to end: about 4 semi-trucks nose to tail. Lengths and the semi-truck 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.

Built1975rebuilt 2016
Length310.0 ft94.5 m
Daily traffic17,746counted 2024
Last inspectedSeptember 2022every 24 months

Location

StatePennsylvania
CountyAllegheny
Location1 Mi.s.of Bloomfield Br.
CarriesBaum BLVD
CrossesCsx Rr Pat East Busway
Coordinates40.45404, -79.95055

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length310.0 ft (94.5 m)
Max Span191.9 ft (58.5 m)
Deck Width60.0 ft (18.3 m)
Deck Area1729.3 sq m
Main Spans1
Year Built1975 (reconstructed 2016)

Traffic

Avg Daily Traffic17,746 (2024)
Truck Traffic2%
Lanes On Bridge4
Lanes Under Bridge2

Inspection & Ownership

Last InspectionSeptember 2022
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000001229

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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