Structure 5515800 · Montgomery County, NY

RTE I90 over Terwilleger Creek

Carries RTE I90 over Terwilleger Creek, 1.3 Mi W Of Cranesville.

Overall conditionFair

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

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

Elevation

Side view, colored by inspection rating
CAR · 15 FT50 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck not ratedSuperstructure 6/9Substructure 6/9

50 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 deck arch.

Built1952rebuilt 1999
Length49.9 ft15.2 m
Daily traffic25,565counted 2020
Last inspectedJune 2024every 24 months

Location

StateNew York
CountyMontgomery
Location1.3 Mi W Of Cranesville
CarriesRTE I90
CrossesTerwilleger Creek
Coordinates42.91303, -74.15376

Physical Characteristics

MaterialConcrete
DesignArch - Deck
Total Length49.9 ft (15.2 m)
Max Span48.9 ft (14.9 m)
Deck Width378.9 ft (115.5 m)
Deck Area1755.6 sq m
Main Spans1
Year Built1952 (reconstructed 1999)

Traffic

Avg Daily Traffic25,565 (2020)
Truck Traffic28%
Lanes On Bridge4

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number000000005515800

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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