Structure 46165 · Mercer County, PA

SR 173 Grove City over Wolf Creek Branch

Carries SR 173 Grove City over Wolf Creek Branch, Worth Twp.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT64 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

64 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 box-beam bridge.

Built201016 years old
Length64.0 ft19.5 m
Daily traffic1,681counted 2024
Last inspectedMay 2023every 48 months

Location

StatePennsylvania
CountyMercer
LocationWorth Twp
CarriesSR 173 Grove City
CrossesWolf Creek Branch
Coordinates41.27548, -80.07263

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length64.0 ft (19.5 m)
Max Span60.0 ft (18.3 m)
Deck Width35.4 ft (10.8 m)
Deck Area210.6 sq m
Main Spans1
Year Built2010

Traffic

Avg Daily Traffic1,681 (2024)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000046165

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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