Structure 69679 · Snyder County, PA

SR 522 over Over Mitchell Run

Carries SR 522 over Over Mitchell Run, 11 Mi W Of Middleburg.

Overall conditionGood

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

How ratings work
Deck9/9 · Excellent
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 FT54 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 9/9Superstructure 8/9 · sets the ratingSubstructure 8/9 · sets the rating

54 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.

Built20242 years old
Length54.1 ft16.5 m
Daily traffic4,802counted 2024
Last inspectedSeptember 2024every 24 months

Location

StatePennsylvania
CountySnyder
Location11 Mi W Of Middleburg
CarriesSR 522
CrossesOver Mitchell Run
Coordinates40.74338, -77.22281

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Single/Spread
Total Length54.1 ft (16.5 m)
Max Span51.8 ft (15.8 m)
Deck Width43.3 ft (13.2 m)
Deck Area217.8 sq m
Main Spans1
Year Built2024

Traffic

Avg Daily Traffic4,802 (2024)
Truck Traffic12%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000069679

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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