Structure 103118B · Broome County, NY

RTE 17 over RTE I81 Chenango River

Carries RTE 17 over RTE I81 Chenango River, Jct I81 & Chenango River.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT804 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

804 ft end to end, longest span 224 ft: about 2.2 football fields. 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.

Built201412 years old
Length804.1 ft245.1 m
Daily traffic69,178counted 2014
Last inspectedOctober 2024every 24 months

Location

StateNew York
CountyBroome
LocationJct I81 & Chenango River
CarriesRTE 17
CrossesRTE I81 Chenango River
Coordinates42.11538, -75.90666

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length804.1 ft (245.1 m)
Max Span224.1 ft (68.3 m)
Deck Width41.7 ft (12.7 m)
Deck Area3112.8 sq m
Main Spans4
Year Built2014

Traffic

Avg Daily Traffic69,178 (2014)
Truck Traffic10%
Lanes On Bridge2
Lanes Under Bridge8

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 Number00000000103118B

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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