US Bridges

NH113 over Chocorua River

Fair

Carroll County, New Hampshire · 5.1 MI NE JCT 25 & 113 · Structure no. 025200950016200

Built
1925
100 years old, rebuilt 2018
Condition
Fair
inspected May 2023
Type
Slab
Concrete
Length
22 ft
1 main span
Daily traffic
2,159
2023 count
Owner
State
State Highway Agency

About this bridge

NH113 over Chocorua River is a concrete slab carrying NH113 over Chocorua River in Carroll County, New Hampshire. It was built in 1925 and reconstructed in 2018, so it is 100 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,159 vehicles a day, roughly 4% of them trucks, projected to reach 3,195 by 2043. The structure is 22 ft (6.7 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesNH113
CrossesChocorua River
Location5.1 MI NE JCT 25 & 113
RouteState Highway 113
CountyCarroll County
StateNew Hampshire
Coordinates43.87747, -71.22081
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating77.9 US tons
Inventory rating60.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length22 ft (6.7 m)
Longest span20 ft (6.1 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,159 (2023)
Projected traffic3,195 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 NH113 over Chocorua River built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 2018.

What condition is NH113 over Chocorua River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2023.

How much traffic does NH113 over Chocorua River carry?

About 2,159 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is NH113 over Chocorua River?

The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6.1 m) and a deck 32 ft wide.

Who owns NH113 over Chocorua River?

It is owned by the State Highway Agency.