US Bridges

West Street over California Brook

Good

Cheshire County, New Hampshire · 0.41MI RTE 10 · Structure no. 025100800012400

Built
2005
20 years old
Condition
Good
inspected August 2024
Type
Slab
Prestressed Concrete
Length
35 ft
1 main span
Daily traffic
266
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

West Street over California Brook is a prestressed concrete slab carrying West Street over California Brook in Cheshire County, New Hampshire. It was built in 2005, so it is 20 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 266 vehicles a day, projected to reach 393 by 2043. The structure is 35 ft (10.8 m) long and 28 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesWest Street
CrossesCalifornia Brook
Location0.41MI RTE 10
Coordinates42.87172, -72.34097
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 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 alignment8: Equal to present desirable criteria
Operating rating93.6 US tons
Inventory rating56 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length35 ft (10.8 m)
Longest span34 ft (10.4 m)
Deck width28 ft (8.5 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic266 (2023)
Projected traffic393 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 West Street over California Brook built?

It was built in 2005, making it 20 years old in 2025.

What condition is West Street over California 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 West Street over California Brook carry?

About 266 vehicles per day (2023 count).

How long is West Street over California Brook?

The structure is 35 ft (10.8 m) long with a longest span of 34 ft (10.4 m) and a deck 28 ft wide.

Who owns West Street over California Brook?

It is owned by the City or Municipal Highway Agency.