Structure 1061990 · Tioga County, NY

Keystone Avenue over 17 17 65062010 RTE 17

Carries Keystone Avenue over 17 17 65062010 RTE 17, 0.9 Mi E Jct Rts 17 + 220.

Overall conditionPoor

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

How ratings work
Deck7/9 · Good
Superstructure6/9 · Satisfactory
Substructuresets the rating4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT187 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9Substructure 4/9 · sets the rating

187 ft end to end, longest span 90 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.

Built197353 years old
Length187.0 ft57 m
Daily traffic4,411counted 2020
Last inspectedMay 2023every 24 months

Location

StateNew York
CountyTioga
Location0.9 Mi E Jct Rts 17 + 220
CarriesKeystone Avenue
Crosses17 17 65062010 RTE 17
Coordinates41.99957, -76.53482

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length187.0 ft (57 m)
Max Span89.9 ft (27.4 m)
Deck Width50.5 ft (15.4 m)
Deck Area877.8 sq m
Main Spans2
Year Built1973

Traffic

Avg Daily Traffic4,411 (2020)
Truck Traffic3%
Lanes On Bridge2
Lanes Under Bridge6

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000001061990

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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