US Bridges

Ames Road over Trout Brook

PoorPosted for load

St. Lawrence County, New York · 4.0 MI NW of Crary Mills · Structure no. 000000002221610

Built
1950
75 years old
Condition
Poor
inspected April 2024
Type
Girder and Floorbeam System
Steel
Length
25 ft
1 main span
Daily traffic
314
2016 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Ames Road over Trout Brook is a steel girder and floorbeam system carrying Ames Road over Trout Brook in St. Lawrence County, New York. It was built in 1950, so it is 75 years old, older than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 2 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 314 vehicles a day, roughly 5% of them trucks, projected to reach 440 by 2036. The structure is 25 ft (7.6 m) long and 23 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

CarriesAmes Road
CrossesTrout Brook
Location4.0 MI NW of Crary Mills
Coordinates44.62944, -75.08293
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating34 US tons
Inventory rating19 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span21 ft (6.4 m)
Deck width23 ft (7.1 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic314 (2016)
Projected traffic440 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$367,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Ames Road over Trout Brook built?

It was built in 1950, making it 75 years old in 2025.

What condition is Ames Road over Trout Brook in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2024.

How much traffic does Ames Road over Trout Brook carry?

About 314 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Ames Road over Trout Brook?

The structure is 25 ft (7.6 m) long with a longest span of 21 ft (6.4 m) and a deck 23 ft wide.

Who owns Ames Road over Trout Brook?

It is owned by the Town or Township Highway Agency.