Upper Dam over Bog River
GoodSt. Lawrence County, New York · 3 MI SW End of SH 421 · Structure no. 000000005524530
- Built
- 1993
- 32 years old
- Condition
- Good
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 44 ft
- 1 main span
- Daily traffic
- 2
- 1996 count
- Owner
- State
- Other State Agency
About this bridge
Upper Dam over Bog River is a steel stringer/multi-beam or girder carrying Upper Dam over Bog River in St. Lawrence County, New York. It was built in 1993, so it is 32 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 2 vehicles a day, roughly 10% of them trucks, projected to reach 3 by 2016. The structure is 44 ft (13.4 m) long and 14 ft wide. If it were closed, the detour would be 123.7 mi (199 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 9 Excellent | No problems noted. |
| Superstructure | 9 Excellent | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Upper Dam over Bog River built?
It was built in 1993, making it 32 years old in 2025.
What condition is Upper Dam over Bog 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 July 2024.
How much traffic does Upper Dam over Bog River carry?
About 2 vehicles per day (1996 count), of which roughly 10% are trucks.
How long is Upper Dam over Bog River?
The structure is 44 ft (13.4 m) long with a longest span of 42 ft (12.8 m) and a deck 14 ft wide.
Who owns Upper Dam over Bog River?
It is owned by the Other State Agency.