I-93 NB over Collins ST Squam River
GoodGrafton County, New Hampshire · .07 MI New Hampton T.L. · Structure no. 001100890005000
- Built
- 1963
- 62 years old, rebuilt 1990
- Condition
- Good
- inspected April 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 179 ft
- 2 main spans
- Daily traffic
- 10,875
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-93 NB over Collins ST Squam River is a steel stringer/multi-beam or girder carrying I-93 NB over Collins ST Squam River in Grafton County, New Hampshire. It was built in 1963 and reconstructed in 1990, so it is 62 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 10,875 vehicles a day, roughly 9% of them trucks, projected to reach 16,095 by 2043. The structure is 179 ft (54.6 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| 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 NB over Collins ST Squam River built?
It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1990.
What condition is I-93 NB over Collins ST Squam 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 April 2024.
How much traffic does I-93 NB over Collins ST Squam River carry?
About 10,875 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is I-93 NB over Collins ST Squam River?
The structure is 179 ft (54.6 m) long with a longest span of 86 ft (26.2 m) and a deck 44 ft wide.
Who owns I-93 NB over Collins ST Squam River?
It is owned by the State Highway Agency.