Structure 17104 · Fayette County, PA

T-346 over Jacobs Creek

Carries T-346 over Jacobs Creek, 1.0 Mi NE Of SR 0166.

Overall conditionPoor

Set by its lowest-rated component: Superstructure and Substructure at 4 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating4/9 · Poor
Substructuresets the rating4/9 · Poor
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT33 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 4/9 · sets the ratingSubstructure 4/9 · sets the rating

33 ft end to end. 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 or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built1910rebuilt 1958
Length33.1 ft10.1 m
Daily traffic127counted 2023
Last inspectedSeptember 2023every 24 months

Location

StatePennsylvania
CountyFayette
Location1.0 Mi NE Of SR 0166
CarriesT-346
CrossesJacobs Creek
Coordinates39.80889, -79.89867

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length33.1 ft (10.1 m)
Max Span30.8 ft (9.4 m)
Deck Width17.7 ft (5.4 m)
Deck Area54.5 sq m
Main Spans1
Year Built1910 (reconstructed 1958)

Traffic

Avg Daily Traffic127 (2023)
Truck Traffic5%
Lanes On Bridge1

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number000000000017104

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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