Structure 29560 · Perry County, PA

Pa 850; SR 0850 over Laurel Run

Carries Pa 850; SR 0850 over Laurel Run, 7 Mi. N.w. Kistler.

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
CAR · 15 FT55 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

55 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.

Built199234 years old
Length55.1 ft16.8 m
Daily traffic371counted 2024
Last inspectedNovember 2022every 24 months

Location

StatePennsylvania
CountyPerry
Location7 Mi. N.w. Kistler
CarriesPa 850; SR 0850
CrossesLaurel Run
Coordinates40.39553, -77.53655

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length55.1 ft (16.8 m)
Max Span53.1 ft (16.2 m)
Deck Width31.5 ft (9.6 m)
Deck Area161.3 sq m
Main Spans1
Year Built1992

Traffic

Avg Daily Traffic371 (2024)
Truck Traffic14%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2022
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical7 — Countermeasures installed
Structure Number000000000029560

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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