US Bridges

Hummingbird Lane over Sand Brook

Good

Hillsborough County, New Hampshire · 0.4 MI Fr. Henniker T/L · Structure no. 012201690008100

Built
2013
12 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete
Length
26 ft
1 main span
Daily traffic
300
2007 count
Owner
Local
Other Local Agency

About this bridge

Hummingbird Lane over Sand Brook is a concrete culvert carrying Hummingbird Lane over Sand Brook in Hillsborough County, New Hampshire. It was built in 2013, so it is 12 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 300 vehicles a day, roughly 4% of them trucks, projected to reach 444 by 2027. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesHummingbird Lane
CrossesSand Brook
Location0.4 MI Fr. Henniker T/L
Coordinates43.15001, -71.88087
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating99 US tons
Inventory rating60.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length26 ft (7.9 m)
Longest span24 ft (7.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2007)
Projected traffic444 by 2027
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther Local Agency
Maintained byOther Local 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 Hummingbird Lane over Sand Brook built?

It was built in 2013, making it 12 years old in 2025.

What condition is Hummingbird Lane over Sand 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 2024.

How much traffic does Hummingbird Lane over Sand Brook carry?

About 300 vehicles per day (2007 count), of which roughly 4% are trucks.

How long is Hummingbird Lane over Sand Brook?

The structure is 26 ft (7.9 m) long with a longest span of 24 ft (7.3 m).

Who owns Hummingbird Lane over Sand Brook?

It is owned by the Other Local Agency.