US Bridges

NH113A over Whiteface River

Fair

Carroll County, New Hampshire · 2.1 MI W Tamworth Tl · Structure no. 023302030016100

Built
1941
84 years old
Condition
Fair
inspected July 2024
Type
Tee Beam
Concrete
Length
39 ft
1 main span
Daily traffic
254
2023 count
Owner
State
State Highway Agency

About this bridge

NH113A over Whiteface River is a concrete tee beam carrying NH113A over Whiteface River in Carroll County, New Hampshire. It was built in 1941, so it is 84 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 254 vehicles a day, roughly 10% of them trucks, projected to reach 375 by 2043. The structure is 39 ft (11.9 m) long and 27 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesNH113A
CrossesWhiteface River
Location2.1 MI W Tamworth Tl
RouteState Highway 113A
CountyCarroll County
StateNew Hampshire
Coordinates43.88284, -71.39267
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.1 US tons
Inventory rating29.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length39 ft (11.9 m)
Longest span36 ft (11 m)
Deck width27 ft (8.1 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic254 (2023)
Projected traffic375 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 NH113A over Whiteface River built?

It was built in 1941, making it 84 years old in 2025.

What condition is NH113A over Whiteface 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 July 2024.

How much traffic does NH113A over Whiteface River carry?

About 254 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is NH113A over Whiteface River?

The structure is 39 ft (11.9 m) long with a longest span of 36 ft (11 m) and a deck 27 ft wide.

Who owns NH113A over Whiteface River?

It is owned by the State Highway Agency.