Structure 3354510 · Otsego County, NY

County Road 47 over Susquehanna River

Carries County Road 47 over Susquehanna River, 1 Mile East Of Oneonta.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT233 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

233 ft end to end, longest span 114 ft: about 3 semi-trucks nose to tail. Lengths and the semi-truck 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 multi-beam bridge.

Built198640 years old
Length232.9 ft71 m
Daily traffic4,348counted 2020
Last inspectedMay 2023every 24 months

Location

StateNew York
CountyOtsego
Location1 Mile East Of Oneonta
CarriesCounty Road 47
CrossesSusquehanna River
Coordinates42.45691, -75.00790

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length232.9 ft (71 m)
Max Span113.8 ft (34.7 m)
Deck Width42.0 ft (12.8 m)
Deck Area908.8 sq m
Main Spans2
Year Built1986

Traffic

Avg Daily Traffic4,348 (2020)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000003354510

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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