Structure 1338 · Allegheny County, PA

Gibsonia RD over Branch Of Deer Creek

Carries Gibsonia RD over Branch Of Deer Creek, 200 South Of SR 1024.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
22 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

22 ft end to end. Lengths are drawn to scale; at this length a semi-truck would be a speck. 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 slab bridge.

Built1960rebuilt 2010
Length22.0 ft6.7 m
Daily traffic4,325counted 2024
Last inspectedOctober 2023every 24 months

Location

StatePennsylvania
CountyAllegheny
Location200 South Of SR 1024
CarriesGibsonia RD
CrossesBranch Of Deer Creek
Coordinates40.61097, -79.89455

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length22.0 ft (6.7 m)
Max Span18.0 ft (5.5 m)
Deck Width37.4 ft (11.4 m)
Deck Area76.4 sq m
Main Spans1
Year Built1960 (reconstructed 2010)

Traffic

Avg Daily Traffic4,325 (2024)
Truck Traffic6%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000000001338

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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