Structure 1046230 · St. Lawrence County, NY

RTE 345 over Big Sucker Brook

Carries RTE 345 over Big Sucker Brook, 0.4 Mi SE Jct Rts 345+ 37.

Overall conditionGood

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

How ratings work
Decksets the rating8/9 · Very Good
Superstructure9/9 · Excellent
Substructure9/9 · Excellent
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT126 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9 · sets the ratingSuperstructure 9/9Substructure 9/9

126 ft end to end. 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 multi-beam bridge.

Built200818 years old
Length126.0 ft38.4 m
Daily traffic1,233counted 2020
Last inspectedOctober 2024every 24 months

Location

StateNew York
CountySt. Lawrence
Location0.4 Mi SE Jct Rts 345+ 37
CarriesRTE 345
CrossesBig Sucker Brook
Coordinates44.85673, -75.19859

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length126.0 ft (38.4 m)
Max Span124.7 ft (38 m)
Deck Width38.4 ft (11.7 m)
Deck Area449.3 sq m
Main Spans1
Year Built2008

Traffic

Avg Daily Traffic1,233 (2020)
Truck Traffic16%
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 Critical5 — Stable for scour
Structure Number000000001046230

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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