US Bridges

Sullivan Road over Trout Brook

Good

St. Lawrence County, New York · 3.0 Miles W of Hopkinton · Structure no. 000000003221820

Built
2019
6 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
35 ft
1 main span
Daily traffic
17
2018 count
Owner
County
County Highway Agency

About this bridge

Sullivan Road over Trout Brook is a steel stringer/multi-beam or girder carrying Sullivan Road over Trout Brook in St. Lawrence County, New York. It was built in 2019, so it is 6 years old, younger than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 17 vehicles a day, roughly 18% of them trucks, projected to reach 24 by 2038. The structure is 35 ft (10.7 m) long and 17 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSullivan Road
CrossesTrout Brook
Location3.0 Miles W of Hopkinton
RouteCounty Highway 0
CountySt. Lawrence County
StateNew York
Coordinates44.69688, -74.80554
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckOther
Main spans1
Design loadOther
Structure length35 ft (10.7 m)
Longest span32 ft (9.8 m)
Deck width17 ft (5.2 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17 (2018)
Projected traffic24 by 2038
Trucks18%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$276,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Sullivan Road over Trout Brook built?

It was built in 2019, making it 6 years old in 2025.

What condition is Sullivan Road over Trout Brook in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

How much traffic does Sullivan Road over Trout Brook carry?

About 17 vehicles per day (2018 count), of which roughly 18% are trucks.

How long is Sullivan Road over Trout Brook?

The structure is 35 ft (10.7 m) long with a longest span of 32 ft (9.8 m) and a deck 17 ft wide.

Who owns Sullivan Road over Trout Brook?

It is owned by the County Highway Agency.