US Bridges

Broad Brook Road over Broad Brook

Good

Cheshire County, New Hampshire · 0.4 Mi. from Jct. Nh 10 · Structure no. 027900700010600

Built
1900
125 years old, rebuilt 2014
Condition
Good
inspected August 2024
Type
Slab
Prestressed Concrete
Length
27 ft
1 main span
Daily traffic
96
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Broad Brook Road over Broad Brook is a prestressed concrete slab carrying Broad Brook Road over Broad Brook in Cheshire County, New Hampshire. It was built in 1900 and reconstructed in 2014, so it is 125 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 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 27 ft (8.3 m) long and 16 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesBroad Brook Road
CrossesBroad Brook
Location0.4 Mi. from Jct. Nh 10
CountyCheshire County
StateNew Hampshire
Coordinates42.79122, -72.43382
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating99 US tons
Inventory rating93.8 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length27 ft (8.3 m)
Longest span20 ft (6.2 m)
Deck width16 ft (4.9 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic96 (2023)
Projected traffic142 by 2043
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Broad Brook Road over Broad Brook built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 2014.

What condition is Broad Brook Road over Broad 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 August 2024.

How much traffic does Broad Brook Road over Broad Brook carry?

About 96 vehicles per day (2023 count).

How long is Broad Brook Road over Broad Brook?

The structure is 27 ft (8.3 m) long with a longest span of 20 ft (6.2 m) and a deck 16 ft wide.

Who owns Broad Brook Road over Broad Brook?

It is owned by the City or Municipal Highway Agency.