Structure 1008870 · St. Lawrence County, NY

RTE 11c over ST Regis River

Carries RTE 11c over ST Regis River, 1.4 Mi NE Jct 11c & 420.

Overall conditionFair

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

How ratings work
Deck8/9 · Very Good
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT155 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 5/9 · sets the ratingSubstructure 6/9

155 ft end to end: about 2 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.

Built1933rebuilt 1994
Length154.9 ft47.2 m
Daily traffic1,185counted 2019
Last inspectedOctober 2024every 24 months

Location

StateNew York
CountySt. Lawrence
Location1.4 Mi NE Jct 11c & 420
CarriesRTE 11c
CrossesST Regis River
Coordinates44.80798, -74.77171

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length154.9 ft (47.2 m)
Max Span149.9 ft (45.7 m)
Deck Width27.2 ft (8.3 m)
Deck Area391.8 sq m
Main Spans1
Year Built1933 (reconstructed 1994)

Traffic

Avg Daily Traffic1,185 (2019)
Truck Traffic7%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical4 — Foundations need monitoring
Structure Number000000001008870

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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