US Bridges

NH123 over Cold River

Good

Cheshire County, New Hampshire · 1.34MI SE Vt Sl · Structure no. 026200780006600

Built
2008
17 years old
Condition
Good
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
108 ft
1 main span
Daily traffic
2,804
2023 count
Owner
State
State Highway Agency

About this bridge

NH123 over Cold River is a prestressed concrete box beam or girders - multiple carrying NH123 over Cold River in Cheshire County, New Hampshire. It was built in 2008, so it is 17 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 2,804 vehicles a day, roughly 10% of them trucks, projected to reach 4,149 by 2043. The structure is 108 ft (32.9 m) long and 38 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesNH123
CrossesCold River
Location1.34MI SE Vt Sl
RouteState Highway 123
Coordinates43.12182, -72.42649
Functional classRural Major Collector

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 protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating99 US tons
Inventory rating55.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length108 ft (32.9 m)
Longest span105 ft (32 m)
Deck width38 ft (11.7 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,804 (2023)
Projected traffic4,149 by 2043
Trucks10%
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

OwnerState Highway Agency
Maintained byState 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 NH123 over Cold River built?

It was built in 2008, making it 17 years old in 2025.

What condition is NH123 over Cold River 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 June 2024.

How much traffic does NH123 over Cold River carry?

About 2,804 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is NH123 over Cold River?

The structure is 108 ft (32.9 m) long with a longest span of 105 ft (32 m) and a deck 38 ft wide.

Who owns NH123 over Cold River?

It is owned by the State Highway Agency.