US Bridges

Nh 16 over Pine River

Fair

Carroll County, New Hampshire · 2.4 MI from Wakefield Tl · Structure no. 020402380011200

Built
1930
95 years old, rebuilt 1977
Condition
Fair
inspected June 2023
Type
Arch - Deck
Concrete
Length
25 ft
1 main span
Daily traffic
7,537
2023 count
Owner
State
State Highway Agency

About this bridge

Nh 16 over Pine River is a concrete arch - deck carrying Nh 16 over Pine River in Carroll County, New Hampshire. It was built in 1930 and reconstructed in 1977, so it is 95 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 7,537 vehicles a day, roughly 7% of them trucks, projected to reach 11,154 by 2043. The structure is 25 ft (7.6 m) long and 56 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesNh 16
CrossesPine River
Location2.4 MI from Wakefield Tl
RouteState Highway 16
Coordinates43.66946, -71.07339
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating64 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length25 ft (7.6 m)
Longest span22 ft (6.7 m)
Deck width56 ft (17.2 m)
Roadway width52 ft (16 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,537 (2023)
Projected traffic11,154 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes

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 Nh 16 over Pine River built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1977.

What condition is Nh 16 over Pine 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 June 2023.

How much traffic does Nh 16 over Pine River carry?

About 7,537 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Nh 16 over Pine River?

The structure is 25 ft (7.6 m) long with a longest span of 22 ft (6.7 m) and a deck 56 ft wide.

Who owns Nh 16 over Pine River?

It is owned by the State Highway Agency.