US Bridges

RTE 68 over Boyden Brook

Fair

St. Lawrence County, New York · 4.3 MI SE JCT Rts 68 + 11 · Structure no. 000000001029330

Built
1959
66 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete
Length
32 ft
1 main span
Daily traffic
1,680
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 68 over Boyden Brook is a concrete slab carrying RTE 68 over Boyden Brook in St. Lawrence County, New York. It was built in 1959, so it is 66 years old, older 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 1,680 vehicles a day, roughly 6% of them trucks, projected to reach 1,690 by 2041. The structure is 32 ft (9.8 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesRTE 68
CrossesBoyden Brook
Location4.3 MI SE JCT Rts 68 + 11
RouteState Highway 68
CountySt. Lawrence County
StateNew York
Coordinates44.57249, -75.08646
Functional classRural Minor Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
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 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating59 US tons
Inventory rating35.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length32 ft (9.8 m)
Longest span30 ft (9.1 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,680 (2020)
Projected traffic1,690 by 2041
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$642,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 68 over Boyden Brook built?

It was built in 1959, making it 66 years old in 2025.

What condition is RTE 68 over Boyden Brook 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 April 2024.

How much traffic does RTE 68 over Boyden Brook carry?

About 1,680 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is RTE 68 over Boyden Brook?

The structure is 32 ft (9.8 m) long with a longest span of 30 ft (9.1 m) and a deck 31 ft wide.

Who owns RTE 68 over Boyden Brook?

It is owned by the State Highway Agency.