Dudley Road over Lamprey River
PoorPosted for loadRockingham County, New Hampshire · .23 MI JCT 101 · Structure no. 021900830015400
- Built
- 1914
- 111 years old, rebuilt 1972
- Condition
- Poor
- inspected November 2024
- Type
- Slab
- Concrete
- Length
- 52 ft
- 2 main spans
- Daily traffic
- 547
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Dudley Road over Lamprey River is a concrete slab carrying Dudley Road over Lamprey River in Rockingham County, New Hampshire. It was built in 1914 and reconstructed in 1972, so it is 111 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 2 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: posted for load restriction.
It carries about 547 vehicles a day, roughly 4% of them trucks, projected to reach 809 by 2043. The structure is 52 ft (15.8 m) long and 21 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 2 Critical | Advanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken. |
| 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 Dudley Road over Lamprey River built?
It was built in 1914, making it 111 years old in 2025. It was reconstructed in 1972.
What condition is Dudley Road over Lamprey 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 Dudley Road over Lamprey River carry?
About 547 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is Dudley Road over Lamprey River?
The structure is 52 ft (15.8 m) long with a longest span of 27 ft (8.2 m) and a deck 21 ft wide.
Who owns Dudley Road over Lamprey River?
It is owned by the State Highway Agency.