Structure 1008370 · Cortland County, NY

RTE 11 over Tioughnioga River

Carries RTE 11 over Tioughnioga River, Jct RTE 11+tioughnioga R.

Overall conditionPoor

Set by its lowest-rated component: Superstructure at 4 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating4/9 · Poor
Substructure5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT196 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 4/9 · sets the ratingSubstructure 5/9

196 ft end to end: 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 through truss.

Built1933rebuilt 1995
Length195.9 ft59.7 m
Daily traffic9,982counted 2021
Last inspectedOctober 2024every 24 months

Location

StateNew York
CountyCortland
LocationJct RTE 11+tioughnioga R
CarriesRTE 11
CrossesTioughnioga River
Coordinates42.59840, -76.15824

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length195.9 ft (59.7 m)
Max Span190.0 ft (57.9 m)
Deck Width33.5 ft (10.2 m)
Deck Area608.9 sq m
Main Spans1
Year Built1933 (reconstructed 1995)

Traffic

Avg Daily Traffic9,982 (2021)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000001008370

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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