Structure 3363500 · St. Lawrence County, NY

Oswegatchie Trail over Little River

Carries Oswegatchie Trail over Little River, Located In Lower Oswegatc.

Overall conditionGood

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

How ratings work
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT81 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck not ratedSuperstructure 7/9Substructure 7/9

81 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.

Built1924102 years old
Length81.0 ft24.7 m
Daily traffic284counted 2015
Last inspectedMay 2023every 24 months

Location

StateNew York
CountySt. Lawrence
LocationLocated In Lower Oswegatc
CarriesOswegatchie Trail
CrossesLittle River
Coordinates44.19320, -75.06884

Physical Characteristics

MaterialConcrete
DesignArch - Deck
Total Length81.0 ft (24.7 m)
Max Span74.8 ft (22.8 m)
Deck Width26.6 ft (8.1 m)
Deck Area200.1 sq m
Main Spans1
Year Built1924

Traffic

Avg Daily Traffic284 (2015)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical4 — Foundations need monitoring
Structure Number000000003363500

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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