Antrim Road over Mill Tail Race
GoodHillsborough County, New Hampshire · 0.15 MI FR Contoocook Va · Structure no. 002100910009400
- Built
- 1988
- 37 years old
- Condition
- Good
- inspected November 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 51 ft
- 1 main span
- Daily traffic
- 2,233
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Antrim Road over Mill Tail Race is a steel stringer/multi-beam or girder carrying Antrim Road over Mill Tail Race in Hillsborough County, New Hampshire. It was built in 1988, so it is 37 years old, younger 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 2,233 vehicles a day, roughly 4% of them trucks, projected to reach 3,304 by 2043. The structure is 51 ft (15.5 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| 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 Antrim Road over Mill Tail Race built?
It was built in 1988, making it 37 years old in 2025.
What condition is Antrim Road over Mill Tail Race 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 November 2023.
How much traffic does Antrim Road over Mill Tail Race carry?
About 2,233 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is Antrim Road over Mill Tail Race?
The structure is 51 ft (15.5 m) long with a longest span of 46 ft (14 m) and a deck 32 ft wide.
Who owns Antrim Road over Mill Tail Race?
It is owned by the City or Municipal Highway Agency.