Structure 1094720 · St. Lawrence County, NY

RTE 345 over Brandy Brook

Carries RTE 345 over Brandy Brook, 3.4 Mi SE Jct Rts 345+ 37.

Overall conditionGood

Set by its lowest-rated component: Culvert at 7 of 9.

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

Elevation

Side view, colored by inspection rating
CAR · 15 FT39 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 39 ft across with 2 openings. 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, so those are drawn as typical for a culvert.

Built1961rebuilt 2021
Length39.0 ft11.9 m
Daily traffic1,233counted 2020
Last inspectedSeptember 2023every 24 months

Location

StateNew York
CountySt. Lawrence
Location3.4 Mi SE Jct Rts 345+ 37
CarriesRTE 345
CrossesBrandy Brook
Coordinates44.80534, -75.16971

Physical Characteristics

MaterialSteel
DesignCulvert
Total Length39.0 ft (11.9 m)
Max Span18.7 ft (5.7 m)
Deck Area130.9 sq m
Main Spans2
Year Built1961 (reconstructed 2021)

Traffic

Avg Daily Traffic1,233 (2020)
Truck Traffic16%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000001094720

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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