US 3 over Harvard Brook
GoodGrafton County, New Hampshire · 0.9 MI from Woodstock Tl · Structure no. 014802100009300
- Built
- 1930
- 95 years old, rebuilt 2002
- Condition
- Good
- inspected May 2024
- Type
- Arch - Deck
- Concrete
- Length
- 44 ft
- 1 main span
- Daily traffic
- 2,333
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 3 over Harvard Brook is a concrete arch - deck carrying US 3 over Harvard Brook in Grafton County, New Hampshire. It was built in 1930 and reconstructed in 2002, so it is 95 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 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 2,333 vehicles a day, roughly 5% of them trucks, projected to reach 3,452 by 2043. The structure is 44 ft (13.4 m) long and 48 ft wide. If it were closed, the detour would be 24.2 mi (39 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 3 over Harvard Brook built?
It was built in 1930, making it 95 years old in 2025. It was reconstructed in 2002.
What condition is US 3 over Harvard 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 May 2024.
How much traffic does US 3 over Harvard Brook carry?
About 2,333 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is US 3 over Harvard Brook?
The structure is 44 ft (13.4 m) long with a longest span of 44 ft (13.4 m) and a deck 48 ft wide.
Who owns US 3 over Harvard Brook?
It is owned by the State Highway Agency.