NH103 over I-89 SB Warner River
PoorMerrimack County, New Hampshire · 3.6 MI N Hopkinton T.L. · Structure no. 026302040013600
- Built
- 1966
- 59 years old, rebuilt 1993
- Condition
- Poor
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 245 ft
- 2 main spans
- Daily traffic
- 1,372
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
NH103 over I-89 SB Warner River is a steel continuous stringer/multi-beam or girder carrying NH103 over I-89 SB 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 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 1,372 vehicles a day, roughly 10% of them trucks, projected to reach 2,030 by 2043. The structure is 245 ft (74.7 m) long and 38 ft wide. If it were closed, the detour would be 16.2 mi (26 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was NH103 over I-89 SB Warner River built?
It was built in 1966, making it 59 years old in 2025. It was reconstructed in 1993.
What condition is NH103 over I-89 SB Warner River 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 NH103 over I-89 SB Warner River carry?
About 1,372 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is NH103 over I-89 SB Warner River?
The structure is 245 ft (74.7 m) long with a longest span of 120 ft (36.6 m) and a deck 38 ft wide.
Who owns NH103 over I-89 SB Warner River?
It is owned by the State Highway Agency.