Structure 12658 · Columbia County, PA

Mill Road over Roaring Creek

Carries Mill Road over Roaring Creek, 2.7 M. SE Of Slabtown.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT34 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

34 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 channel-beam bridge.

Built1985rebuilt 2012
Length34.1 ft10.4 m
Daily traffic291counted 2024
Last inspectedJanuary 2023every 24 months

Location

StatePennsylvania
CountyColumbia
Location2.7 M. SE Of Slabtown
CarriesMill Road
CrossesRoaring Creek
Coordinates40.89210, -76.36538

Physical Characteristics

MaterialConcrete
DesignChannel Beam
Total Length34.1 ft (10.4 m)
Max Span33.1 ft (10.1 m)
Deck Width22.6 ft (6.9 m)
Deck Area71.8 sq m
Main Spans1
Year Built1985 (reconstructed 2012)

Traffic

Avg Daily Traffic291 (2024)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical4 — Foundations need monitoring
Structure Number000000000012658

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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