Structure 1795 · Allegheny County, PA

Greentree Road over Georges Run

Carries Greentree Road over Georges Run, 0.3 Mi W Of SR 121.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
21 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

21 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.

Built1950rebuilt 2003
Length21.0 ft6.4 m
Daily traffic13,168counted 2024
Last inspectedMay 2023every 24 months

Location

StatePennsylvania
CountyAllegheny
Location0.3 Mi W Of SR 121
CarriesGreentree Road
CrossesGeorges Run
Coordinates40.39153, -80.07137

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length21.0 ft (6.4 m)
Max Span18.0 ft (5.5 m)
Deck Width65.9 ft (20.1 m)
Deck Area128.6 sq m
Main Spans1
Year Built1950 (reconstructed 2003)

Traffic

Avg Daily Traffic13,168 (2024)
Truck Traffic3%
Lanes On Bridge4

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000000001795

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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