Structure 1026420 · Otsego County, NY

RTE 51 over Thorp Brook

Carries RTE 51 over Thorp Brook, 2 Mi NE Of Gilbertsville.

Overall conditionFair

Set by its lowest-rated component: Culvert at 5 of 9.

How ratings work
Culvertsets the rating5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT27 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 5/9

A culvert 27 ft across with 2 openings. 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, so those are drawn as typical for a culvert.

Built196957 years old
Length26.9 ft8.2 m
Daily traffic670counted 2020
Last inspectedJune 2024every 24 months

Location

StateNew York
CountyOtsego
Location2 Mi NE Of Gilbertsville
CarriesRTE 51
CrossesThorp Brook
Coordinates42.49333, -75.30069

Physical Characteristics

MaterialSteel
DesignCulvert
Total Length26.9 ft (8.2 m)
Max Span10.8 ft (3.3 m)
Deck Area59.9 sq m
Main Spans2
Year Built1969

Traffic

Avg Daily Traffic670 (2020)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000001026420

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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