Structure 12828 · Columbia County, PA

T-356 Cty Br #57 over Montour Run

Carries T-356 Cty Br #57 over Montour Run, 0.5 Mi. NW Of Rupert.

Overall conditionPoor

Set by its lowest-rated component: Superstructure at 3 of 9.

How ratings work
Superstructuresets the rating3/9 · Serious
Substructure4/9 · Poor
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT27 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck not ratedSuperstructure 3/9 · sets the ratingSubstructure 4/9

27 ft end to end, longest span 11 ft. 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 deck arch.

Built192799 years old
Length26.9 ft8.2 m
Daily traffic150counted 2024
Last inspectedMarch 2023every 24 months

Location

StatePennsylvania
CountyColumbia
Location0.5 Mi. NW Of Rupert
CarriesT-356 Cty Br #57
CrossesMontour Run
Coordinates40.98563, -76.47740

Physical Characteristics

MaterialOther
DesignArch - Deck
Total Length26.9 ft (8.2 m)
Max Span11.2 ft (3.4 m)
Deck Width26.2 ft (8 m)
Deck Area65.6 sq m
Main Spans2
Year Built1927

Traffic

Avg Daily Traffic150 (2024)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical7 — Countermeasures installed
Structure Number000000000012828

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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