US Bridges

NH111 over Beaver Brook

Good

Rockingham County, New Hampshire · At Hudson Tl · Structure no. 028000420008200

Built
1961
64 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
38 ft
1 main span
Daily traffic
14,203
2023 count
Owner
State
State Highway Agency

About this bridge

NH111 over Beaver Brook is a concrete culvert carrying NH111 over Beaver Brook in Rockingham County, New Hampshire. It was built in 1961, so it is 64 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 14,203 vehicles a day, roughly 7% of them trucks, projected to reach 21,020 by 2043. The structure is 38 ft (11.6 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNH111
CrossesBeaver Brook
LocationAt Hudson Tl
RouteState Highway 111
Coordinates42.7941, -71.364
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length38 ft (11.6 m)
Longest span35 ft (10.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,203 (2023)
Projected traffic21,020 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$314,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was NH111 over Beaver Brook built?

It was built in 1961, making it 64 years old in 2025.

What condition is NH111 over Beaver 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 2023.

How much traffic does NH111 over Beaver Brook carry?

About 14,203 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is NH111 over Beaver Brook?

The structure is 38 ft (11.6 m) long with a longest span of 35 ft (10.7 m).

Who owns NH111 over Beaver Brook?

It is owned by the State Highway Agency.