US Bridges

Juniper Hill Road over Brennan Brook

Good

Hillsborough County, New Hampshire · Town RD · Structure no. 008600930008700

Built
2015
10 years old
Condition
Good
inspected October 2024
Type
Frame
Concrete
Length
35 ft
1 main span
Daily traffic
96
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Juniper Hill Road over Brennan Brook is a concrete frame carrying Juniper Hill Road over Brennan Brook in Hillsborough County, New Hampshire. It was built in 2015, so it is 10 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 96 vehicles a day, projected to reach 142 by 2043. The structure is 35 ft (10.7 m) long and 27 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesJuniper Hill Road
CrossesBrennan Brook
LocationTown RD
CountyHillsborough County
StateNew Hampshire
Coordinates42.97452, -71.81873
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 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating67.2 US tons
Inventory rating51.8 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length35 ft (10.7 m)
Longest span32 ft (9.8 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic96 (2023)
Projected traffic142 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Juniper Hill Road over Brennan Brook built?

It was built in 2015, making it 10 years old in 2025.

What condition is Juniper Hill Road over Brennan 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 Juniper Hill Road over Brennan Brook carry?

About 96 vehicles per day (2023 count).

How long is Juniper Hill Road over Brennan Brook?

The structure is 35 ft (10.7 m) long with a longest span of 32 ft (9.8 m) and a deck 27 ft wide.

Who owns Juniper Hill Road over Brennan Brook?

It is owned by the City or Municipal Highway Agency.