High Bridge Road over Archertown Brook
PoorClosed to trafficGrafton County, New Hampshire · 150FT W Tillotson RD JCT · Structure no. 020300870010800
- Built
- 1940
- 85 years old
- Condition
- Poor
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 24 ft
- 1 main span
- Daily traffic
- 96
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
High Bridge Road over Archertown Brook is a steel stringer/multi-beam or girder carrying High Bridge Road over Archertown Brook in Grafton County, New Hampshire. It was built in 1940, so it is 85 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 1 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. Its operating status is: closed to all traffic.
It carries about 96 vehicles a day, projected to reach 142 by 2043. The structure is 24 ft (7.3 m) long and 14 ft wide.
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 | 1 Imminent Failure | Major deterioration or section loss present in critical structural components. Bridge is closed to traffic but corrective action may put it back in light service. |
| Superstructure | 1 Imminent Failure | Major deterioration or section loss present in critical structural components. Bridge is closed to traffic but corrective action may put it back in light service. |
| Substructure | 1 Imminent Failure | Major deterioration or section loss present in critical structural components. Bridge is closed to traffic but corrective action may put it back in light service. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was High Bridge Road over Archertown Brook built?
It was built in 1940, making it 85 years old in 2025.
What condition is High Bridge Road over Archertown Brook 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 October 2024.
How much traffic does High Bridge Road over Archertown Brook carry?
About 96 vehicles per day (2023 count).
How long is High Bridge Road over Archertown Brook?
The structure is 24 ft (7.3 m) long with a longest span of 23 ft (7 m) and a deck 14 ft wide.
Who owns High Bridge Road over Archertown Brook?
It is owned by the City or Municipal Highway Agency.