US Bridges

Boyden Road over Boyden Brook

Good

St. Lawrence County, New York · .75 MI S of Langdon Crnrs · Structure no. 000000003340680

Built
2007
18 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
47 ft
1 main span
Daily traffic
339
2018 count
Owner
County
County Highway Agency

About this bridge

Boyden Road over Boyden Brook is a steel stringer/multi-beam or girder carrying Boyden Road over Boyden Brook in St. Lawrence County, New York. It was built in 2007, so it is 18 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 339 vehicles a day, roughly 1% of them trucks, projected to reach 475 by 2038. The structure is 47 ft (14.3 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesBoyden Road
CrossesBoyden Brook
Location.75 MI S of Langdon Crnrs
Coordinates44.55705, -75.08416
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
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 evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88 US tons
Inventory rating53 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length47 ft (14.3 m)
Longest span43 ft (13.1 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic339 (2018)
Projected traffic475 by 2038
Trucks1%
Lanes on structure2
Traffic directionTwo-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$1.3 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Boyden Road over Boyden Brook built?

It was built in 2007, making it 18 years old in 2025.

What condition is Boyden Road over Boyden 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 June 2023.

How much traffic does Boyden Road over Boyden Brook carry?

About 339 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is Boyden Road over Boyden Brook?

The structure is 47 ft (14.3 m) long with a longest span of 43 ft (13.1 m) and a deck 27 ft wide.

Who owns Boyden Road over Boyden Brook?

It is owned by the County Highway Agency.