US Bridges

US 3 NH116 NH142 over Johns River

Fair

Coos County, New Hampshire · 2.3 MI from Carroll Tl · Structure no. 027401100010500

Built
1938
87 years old
Condition
Fair
inspected June 2023
Type
Frame
Concrete
Length
68 ft
1 main span
Daily traffic
9,718
2023 count
Owner
State
State Highway Agency

About this bridge

US 3 NH116 NH142 over Johns River is a concrete frame carrying US 3 NH116 NH142 over Johns River in Coos County, New Hampshire. It was built in 1938, so it is 87 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 5 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 9,718 vehicles a day, roughly 7% of them trucks, projected to reach 14,382 by 2043. The structure is 68 ft (20.7 m) long and 43 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesUS 3 NH116 NH142
CrossesJohns River
Location2.3 MI from Carroll Tl
RouteU.S. Route 3
CountyCoos County
StateNew Hampshire
Coordinates44.37271, -71.61178
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating43 US tons
Inventory rating31 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length68 ft (20.7 m)
Longest span60 ft (18.3 m)
Deck width43 ft (13.1 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,718 (2023)
Projected traffic14,382 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible 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 US 3 NH116 NH142 over Johns River built?

It was built in 1938, making it 87 years old in 2025.

What condition is US 3 NH116 NH142 over Johns 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 US 3 NH116 NH142 over Johns River carry?

About 9,718 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is US 3 NH116 NH142 over Johns River?

The structure is 68 ft (20.7 m) long with a longest span of 60 ft (18.3 m) and a deck 43 ft wide.

Who owns US 3 NH116 NH142 over Johns River?

It is owned by the State Highway Agency.