US Bridges

County Road 35 over Trout Brook

Fair

St. Lawrence County, New York · 0.4 Miles of West Potsdam · Structure no. 000000003341610

Built
1995
30 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
47 ft
1 main span
Daily traffic
794
2018 count
Owner
County
County Highway Agency

About this bridge

County Road 35 over Trout Brook is a steel stringer/multi-beam or girder carrying County Road 35 over Trout Brook in St. Lawrence County, New York. It was built in 1995, so it is 30 years old, younger 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 6 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 794 vehicles a day, roughly 6% of them trucks, projected to reach 1,112 by 2038. The structure is 47 ft (14.3 m) long and 34 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesCounty Road 35
CrossesTrout Brook
Location0.4 Miles of West Potsdam
RouteCounty Highway 0
CountySt. Lawrence County
StateNew York
Coordinates44.68199, -75.092
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating77.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length47 ft (14.3 m)
Longest span46 ft (14 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic794 (2018)
Projected traffic1,112 by 2038
Trucks6%
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$980,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 35 over Trout Brook built?

It was built in 1995, making it 30 years old in 2025.

What condition is County Road 35 over Trout Brook 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 October 2023.

How much traffic does County Road 35 over Trout Brook carry?

About 794 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is County Road 35 over Trout Brook?

The structure is 47 ft (14.3 m) long with a longest span of 46 ft (14 m) and a deck 34 ft wide.

Who owns County Road 35 over Trout Brook?

It is owned by the County Highway Agency.