Covered Bridge RD over Mill Brook
GoodGrafton County, New Hampshire · Off Mill Brook Road · Structure no. 025401830010700
- Built
- 2018
- 7 years old
- Condition
- Good
- inspected September 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 43 ft
- 1 main span
- Daily traffic
- 96
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Covered Bridge RD over Mill Brook is a prestressed concrete box beam or girders - multiple carrying Covered Bridge RD over Mill Brook in Grafton County, New Hampshire. It was built in 2018, so it is 7 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 96 vehicles a day, roughly 5% of them trucks, projected to reach 142 by 2043. The structure is 43 ft (13.1 m) long and 28 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Covered Bridge RD over Mill Brook built?
It was built in 2018, making it 7 years old in 2025.
What condition is Covered Bridge RD over Mill Brook 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 September 2023.
How much traffic does Covered Bridge RD over Mill Brook carry?
About 96 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is Covered Bridge RD over Mill Brook?
The structure is 43 ft (13.1 m) long with a longest span of 40 ft (12.2 m) and a deck 28 ft wide.
Who owns Covered Bridge RD over Mill Brook?
It is owned by the City or Municipal Highway Agency.