Barnhart Island RD over S Ch ST Lawrence R
FairSt. Lawrence County, New York · Barnhart Is & S Ch ST Law · Structure no. 000000005523630
- Built
- 1956
- 69 years old, rebuilt 1997
- Condition
- Fair
- inspected August 2023
- Type
- Truss - Thru
- Steel Continuous
- Length
- 1,078 ft
- 3 main spans
- Daily traffic
- 925
- 2000 count
- Owner
- State
- Other State Agency
About this bridge
Barnhart Island RD over S Ch ST Lawrence R is a steel continuous truss - thru carrying Barnhart Island RD over S Ch ST Lawrence R in St. Lawrence County, New York. It was built in 1956 and reconstructed in 1997, so it is 69 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 925 vehicles a day, roughly 10% of them trucks, projected to reach 1,295 by 2020. The structure is 1,078 ft (328.6 m) long and 44 ft wide. If it were closed, the detour would be 123.7 mi (199 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Barnhart Island RD over S Ch ST Lawrence R built?
It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1997.
What condition is Barnhart Island RD over S Ch ST Lawrence R 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 August 2023.
How much traffic does Barnhart Island RD over S Ch ST Lawrence R carry?
About 925 vehicles per day (2000 count), of which roughly 10% are trucks.
How long is Barnhart Island RD over S Ch ST Lawrence R?
The structure is 1,078 ft (328.6 m) long with a longest span of 509 ft (155.1 m) and a deck 44 ft wide.
Who owns Barnhart Island RD over S Ch ST Lawrence R?
It is owned by the Other State Agency.