US Bridges

RTE 345 over Little Sucker Brk

Fair

St. Lawrence County, New York · 1.6 MI SE JCT SH345 &SH37 · Structure no. 000000001046220

Built
1935
90 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
38 ft
1 main span
Daily traffic
1,233
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 345 over Little Sucker Brk is a steel stringer/multi-beam or girder carrying RTE 345 over Little Sucker Brk in St. Lawrence County, New York. It was built in 1935, so it is 90 years old, older than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,233 vehicles a day, roughly 16% of them trucks, projected to reach 1,286 by 2041. The structure is 38 ft (11.6 m) long and 29 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesRTE 345
CrossesLittle Sucker Brk
Location1.6 MI SE JCT SH345 &SH37
RouteState Highway 345
CountySt. Lawrence County
StateNew York
Coordinates44.84101, -75.19088
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating74 US tons
Inventory rating44 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length38 ft (11.6 m)
Longest span35 ft (10.6 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,233 (2020)
Projected traffic1,286 by 2041
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$665,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 345 over Little Sucker Brk built?

It was built in 1935, making it 90 years old in 2025.

What condition is RTE 345 over Little Sucker Brk in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.

How much traffic does RTE 345 over Little Sucker Brk carry?

About 1,233 vehicles per day (2020 count), of which roughly 16% are trucks.

How long is RTE 345 over Little Sucker Brk?

The structure is 38 ft (11.6 m) long with a longest span of 35 ft (10.6 m) and a deck 29 ft wide.

Who owns RTE 345 over Little Sucker Brk?

It is owned by the State Highway Agency.