Structure 1027070 · Sullivan County, NY

RTE 55 over Chestnut Creek

Carries RTE 55 over Chestnut Creek, 01 Mi E Jct Rts 55a + 55.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure8/9 · Very Good
Substructure7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT110 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 8/9Substructure 7/9

110 ft end to end. 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 or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built201016 years old
Length109.9 ft33.5 m
Daily traffic689counted 2017
Last inspectedApril 2024every 24 months

Location

StateNew York
CountySullivan
Location01 Mi E Jct Rts 55a + 55
CarriesRTE 55
CrossesChestnut Creek
Coordinates41.84906, -74.53215

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length109.9 ft (33.5 m)
Max Span103.0 ft (31.4 m)
Deck Width35.8 ft (10.9 m)
Deck Area365.1 sq m
Main Spans1
Year Built2010

Traffic

Avg Daily Traffic689 (2017)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerOther Local Agencies
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000001027070

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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