I-89 SB over Warner River
FairMerrimack County, New Hampshire · 3.3 MI Hopkinton T.L. · Structure no. 026302060014100
- Built
- 1966
- 59 years old, rebuilt 1993
- Condition
- Fair
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 166 ft
- 3 main spans
- Daily traffic
- 11,491
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-89 SB over Warner River is a steel continuous stringer/multi-beam or girder carrying I-89 SB over Warner River 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 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 11,491 vehicles a day, roughly 9% of them trucks, projected to reach 17,006 by 2043. The structure is 166 ft (50.6 m) long and 56 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-89 SB over Warner River 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 Warner 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 May 2023.
How much traffic does I-89 SB over Warner River carry?
About 11,491 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is I-89 SB over Warner River?
The structure is 166 ft (50.6 m) long with a longest span of 64 ft (19.5 m) and a deck 56 ft wide.
Who owns I-89 SB over Warner River?
It is owned by the State Highway Agency.