Structure 1054470 · St. Lawrence County, NY

RTE 11 over Deer River

Carries RTE 11 over Deer River, 1 Mi SW U S 11 & C L.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT88 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

88 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 box-beam bridge.

Built1989rebuilt 2022
Length87.9 ft26.8 m
Daily traffic2,266counted 2021
Last inspectedNovember 2024every 24 months

Location

StateNew York
CountySt. Lawrence
Location1 Mi SW U S 11 & C L
CarriesRTE 11
CrossesDeer River
Coordinates44.77592, -74.64877

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length87.9 ft (26.8 m)
Max Span86.0 ft (26.2 m)
Deck Width41.7 ft (12.7 m)
Deck Area340.4 sq m
Main Spans1
Year Built1989 (reconstructed 2022)

Traffic

Avg Daily Traffic2,266 (2021)
Truck Traffic20%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000001054470

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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