US Bridges

River Road over Oswegatchie River

Good

St. Lawrence County, New York · .8 MI E of Newtons Falls · Structure no. 000000003340780

Built
1960
65 years old, rebuilt 2000
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
56 ft
1 main span
Daily traffic
115
2015 count
Owner
County
County Highway Agency

About this bridge

River Road over Oswegatchie River is a steel stringer/multi-beam or girder carrying River Road over Oswegatchie River in St. Lawrence County, New York. It was built in 1960 and reconstructed in 2000, so it is 65 years old, older 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 115 vehicles a day, roughly 4% of them trucks, projected to reach 161 by 2035. The structure is 56 ft (17.1 m) long and 26 ft wide. If it were closed, the detour would be 7.5 mi (12 km).

CarriesRiver Road
CrossesOswegatchie River
Location.8 MI E of Newtons Falls
Coordinates44.21993, -74.96478
Functional classRural Minor Collector

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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 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 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 alignment7: Better than present minimum criteria
Operating rating94 US tons
Inventory rating56 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length56 ft (17.1 m)
Longest span54 ft (16.5 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic115 (2015)
Projected traffic161 by 2035
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed7.5 mi (12 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$716,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was River Road over Oswegatchie River built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2000.

What condition is River Road over Oswegatchie River 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 May 2023.

How much traffic does River Road over Oswegatchie River carry?

About 115 vehicles per day (2015 count), of which roughly 4% are trucks.

How long is River Road over Oswegatchie River?

The structure is 56 ft (17.1 m) long with a longest span of 54 ft (16.5 m) and a deck 26 ft wide.

Who owns River Road over Oswegatchie River?

It is owned by the County Highway Agency.