I-93 SB over Blair Road
GoodGrafton County, New Hampshire · 2.1 MI from Plymouth Tl · Structure no. 003501120007900
- Built
- 1967
- 58 years old, rebuilt 2004
- Condition
- Good
- inspected April 2023
- Type
- Frame
- Concrete
- Length
- 59 ft
- 1 main span
- Daily traffic
- 10,437
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-93 SB over Blair Road is a concrete frame carrying I-93 SB over Blair Road in Grafton County, New Hampshire. It was built in 1967 and reconstructed in 2004, so it is 58 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 10,437 vehicles a day, roughly 9% of them trucks, projected to reach 15,446 by 2043. The structure is 59 ft (18 m) long and 46 ft wide.
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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-93 SB over Blair Road built?
It was built in 1967, making it 58 years old in 2025. It was reconstructed in 2004.
What condition is I-93 SB over Blair Road 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 2023.
How much traffic does I-93 SB over Blair Road carry?
About 10,437 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is I-93 SB over Blair Road?
The structure is 59 ft (18 m) long with a longest span of 51 ft (15.5 m) and a deck 46 ft wide.
Who owns I-93 SB over Blair Road?
It is owned by the State Highway Agency.