US Bridges

Hermit Woods Road over Hermit Brook

Good

Belknap County, New Hampshire · 0.3 MI from Nh RTE 132 · Structure no. 023101340014300

Built
2017
8 years old
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Multiple
Concrete
Length
34 ft
1 main span
Daily traffic
387
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Hermit Woods Road over Hermit Brook is a concrete box beam or girders - multiple carrying Hermit Woods Road over Hermit Brook in Belknap County, New Hampshire. It was built in 2017, so it is 8 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 387 vehicles a day, roughly 4% of them trucks, projected to reach 572 by 2043. The structure is 34 ft (10.4 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesHermit Woods Road
CrossesHermit Brook
Location0.3 MI from Nh RTE 132
Coordinates43.55392, -71.60552
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating43 US tons
Inventory rating26 US tons

Structure

MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length34 ft (10.4 m)
Longest span29 ft (8.7 m)
Deck width24 ft (7.3 m)
Roadway width15 ft (4.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic387 (2023)
Projected traffic572 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
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 Hermit Woods Road over Hermit Brook built?

It was built in 2017, making it 8 years old in 2025.

What condition is Hermit Woods Road over Hermit 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 October 2023.

How much traffic does Hermit Woods Road over Hermit Brook carry?

About 387 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Hermit Woods Road over Hermit Brook?

The structure is 34 ft (10.4 m) long with a longest span of 29 ft (8.7 m) and a deck 24 ft wide.

Who owns Hermit Woods Road over Hermit Brook?

It is owned by the City or Municipal Highway Agency.