Structure 1005950 · Clinton County, NY

RTE 9 over Ausable River

Carries RTE 9 over Ausable River, 4.6 Mi N Jct US 9 & SH 22.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT260 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 6/9

260 ft end to end: about 4 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.

Built1940rebuilt 2023
Length259.8 ft79.2 m
Daily traffic2,158counted 2020
Last inspectedDecember 2023every 24 months

Location

StateNew York
CountyClinton
Location4.6 Mi N Jct US 9 & SH 22
CarriesRTE 9
CrossesAusable River
Coordinates44.55859, -73.44864

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length259.8 ft (79.2 m)
Max Span254.9 ft (77.7 m)
Deck Width45.3 ft (13.8 m)
Deck Area1093.0 sq m
Main Spans1
Year Built1940 (reconstructed 2023)

Traffic

Avg Daily Traffic2,158 (2020)
Truck Traffic7%
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is on the National Register of Historic Places
Scour Critical8 — Stable, low risk
Structure Number000000001005950

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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