Structure 1008820 · St. Lawrence County, NY

RTE 971u over Raquette River

Carries RTE 971u over Raquette River, Potsdam .2 Mi E RT 11&345.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT259 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

259 ft end to end, longest span 52 ft: 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 deck arch.

Built1923rebuilt 2015
Length258.9 ft78.9 m
Daily traffic9,043counted 2021
Last inspectedOctober 2023every 24 months

Location

StateNew York
CountySt. Lawrence
LocationPotsdam .2 Mi E RT 11&345
CarriesRTE 971u
CrossesRaquette River
Coordinates44.66735, -74.99003

Physical Characteristics

MaterialConcrete
DesignArch - Deck
Total Length258.9 ft (78.9 m)
Max Span51.8 ft (15.8 m)
Deck Width43.6 ft (13.3 m)
Deck Area1049.4 sq m
Main Spans5
Year Built1923 (reconstructed 2015)

Traffic

Avg Daily Traffic9,043 (2021)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical4 — Foundations need monitoring
Structure Number000000001008820

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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