US Bridges

Nh 16 over New River

Fair

Coos County, New Hampshire · .3 Mi. N. of Jackson Tl · Structure no. 020950580004800

Built
1955
70 years old
Condition
Fair
inspected July 2023
Type
Slab
Concrete
Length
23 ft
1 main span
Daily traffic
3,464
2023 count
Owner
State
State Highway Agency

About this bridge

Nh 16 over New River is a concrete slab carrying Nh 16 over New River in Coos County, New Hampshire. It was built in 1955, so it is 70 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 3,464 vehicles a day, roughly 7% of them trucks, projected to reach 5,126 by 2043. The structure is 23 ft (7 m) long and 47 ft wide. If it were closed, the detour would be 44.1 mi (71 km).

Location

Open in Google Maps
CarriesNh 16
CrossesNew River
Location.3 Mi. N. of Jackson Tl
RouteState Highway 16
CountyCoos County
StateNew Hampshire
Coordinates44.23804, -71.25663
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.8 US tons
Inventory rating36.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length23 ft (7 m)
Longest span20 ft (6.1 m)
Deck width47 ft (14.2 m)
Roadway width47 ft (14.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,464 (2023)
Projected traffic5,126 by 2043
Trucks7%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed44.1 mi (71 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 New River built?

It was built in 1955, making it 70 years old in 2025.

What condition is Nh 16 over New 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 2023.

How much traffic does Nh 16 over New River carry?

About 3,464 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Nh 16 over New River?

The structure is 23 ft (7 m) long with a longest span of 20 ft (6.1 m) and a deck 47 ft wide.

Who owns Nh 16 over New River?

It is owned by the State Highway Agency.