US Bridges

River Road over Oswegatchie River

Fair

St. Lawrence County, New York · 2 MI NE of Hailesboro · Structure no. 000000003221210

Built
1999
26 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
233 ft
2 main spans
Daily traffic
868
2018 count
Owner
County
County Highway Agency

About this bridge

River Road over Oswegatchie River is a steel continuous stringer/multi-beam or girder carrying River Road over Oswegatchie River in St. Lawrence County, New York. It was built in 1999, so it is 26 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 868 vehicles a day, roughly 3% of them trucks, projected to reach 1,215 by 2038. The structure is 233 ft (71 m) long and 16 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesRiver Road
CrossesOswegatchie River
Location2 MI NE of Hailesboro
CountySt. Lawrence County
StateNew York
Coordinates44.31801, -75.44965
Functional classRural Local

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating85 US tons
Inventory rating50 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length233 ft (71 m)
Longest span115 ft (35 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic868 (2018)
Projected traffic1,215 by 2038
Trucks3%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$1.3 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was River Road over Oswegatchie River built?

It was built in 1999, making it 26 years old in 2025.

What condition is River Road over Oswegatchie River 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 June 2023.

How much traffic does River Road over Oswegatchie River carry?

About 868 vehicles per day (2018 count), of which roughly 3% are trucks.

How long is River Road over Oswegatchie River?

The structure is 233 ft (71 m) long with a longest span of 115 ft (35 m) and a deck 16 ft wide.

Who owns River Road over Oswegatchie River?

It is owned by the County Highway Agency.