I-89 SB over West Joppa Road
GoodMerrimack County, New Hampshire · 4.5 MI Hopkinton Tl · Structure no. 026301960012100
- Built
- 1966
- 59 years old, rebuilt 1993
- Condition
- Good
- inspected May 2023
- Type
- Frame
- Concrete
- Length
- 40 ft
- 1 main span
- Daily traffic
- 10,849
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-89 SB over West Joppa Road is a concrete frame carrying I-89 SB over West Joppa Road in Merrimack County, New Hampshire. It was built in 1966 and reconstructed in 1993, so it is 59 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 10,849 vehicles a day, roughly 9% of them trucks, projected to reach 16,056 by 2043. The structure is 40 ft (12.3 m) long and 44 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-89 SB over West Joppa Road built?
It was built in 1966, making it 59 years old in 2025. It was reconstructed in 1993.
What condition is I-89 SB over West Joppa 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 May 2023.
How much traffic does I-89 SB over West Joppa Road carry?
About 10,849 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is I-89 SB over West Joppa Road?
The structure is 40 ft (12.3 m) long with a longest span of 35 ft (10.8 m) and a deck 44 ft wide.
Who owns I-89 SB over West Joppa Road?
It is owned by the State Highway Agency.