I-93 SB over Coal Hill RD Gale River
FairGrafton County, New Hampshire · 1.9 MI Sugarhill Tl · Structure no. 008700770011500
- Built
- 1959
- 66 years old, rebuilt 1991
- Condition
- Fair
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 157 ft
- 3 main spans
- Daily traffic
- 2,638
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-93 SB over Coal Hill RD Gale River is a steel continuous stringer/multi-beam or girder carrying I-93 SB over Coal Hill RD Gale River in Grafton County, New Hampshire. It was built in 1959 and reconstructed in 1991, so it is 66 years old, older than the New Hampshire average of 56.9 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 2,638 vehicles a day, roughly 9% of them trucks, projected to reach 3,904 by 2043. The structure is 157 ft (47.9 m) long and 49 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-93 SB over Coal Hill RD Gale River built?
It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1991.
What condition is I-93 SB over Coal Hill RD Gale River 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 I-93 SB over Coal Hill RD Gale River carry?
About 2,638 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is I-93 SB over Coal Hill RD Gale River?
The structure is 157 ft (47.9 m) long with a longest span of 69 ft (21 m) and a deck 49 ft wide.
Who owns I-93 SB over Coal Hill RD Gale River?
It is owned by the State Highway Agency.