I-89 SB over Turkey Pond
PoorMerrimack County, New Hampshire · 1.5 MI NW JCT Rt 13 · Structure no. 005201650002900
- Built
- 1959
- 66 years old, rebuilt 1992
- Condition
- Poor
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 240 ft
- 3 main spans
- Daily traffic
- 20,703
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-89 SB over Turkey Pond is a steel stringer/multi-beam or girder carrying I-89 SB over Turkey Pond in Merrimack County, New Hampshire. It was built in 1959 and reconstructed in 1992, 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 20,703 vehicles a day, roughly 9% of them trucks, projected to reach 30,640 by 2043. The structure is 240 ft (73.2 m) long and 57 ft wide. If it were closed, the detour would be 11.2 mi (18 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| 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 Turkey Pond built?
It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1992.
What condition is I-89 SB over Turkey Pond in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.
How much traffic does I-89 SB over Turkey Pond carry?
About 20,703 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is I-89 SB over Turkey Pond?
The structure is 240 ft (73.2 m) long with a longest span of 83 ft (25.3 m) and a deck 57 ft wide.
Who owns I-89 SB over Turkey Pond?
It is owned by the State Highway Agency.