I-89 SB over Connecticut River Necrr
PoorGrafton County, New Hampshire · 0.04 MI from Vt. Sl. · Structure no. 014400440010300
- Built
- 1966
- 59 years old
- Condition
- Poor
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 846 ft
- 6 main spans
- Daily traffic
- 21,268
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-89 SB over Connecticut River Necrr is a steel continuous stringer/multi-beam or girder carrying I-89 SB over Connecticut River Necrr in Grafton County, New Hampshire. It was built in 1966, 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 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 21,268 vehicles a day, roughly 9% of them trucks, projected to reach 31,476 by 2043. The structure is 846 ft (257.9 m) long and 36 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 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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-89 SB over Connecticut River Necrr built?
It was built in 1966, making it 59 years old in 2025.
What condition is I-89 SB over Connecticut River Necrr 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 November 2024.
How much traffic does I-89 SB over Connecticut River Necrr carry?
About 21,268 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is I-89 SB over Connecticut River Necrr?
The structure is 846 ft (257.9 m) long with a longest span of 150 ft (45.7 m) and a deck 36 ft wide.
Who owns I-89 SB over Connecticut River Necrr?
It is owned by the State Highway Agency.