US Bridges

NH152 over North River

Good

Rockingham County, New Hampshire · .3MI from Jct. Rte. 156 · Structure no. 020101490008500

Built
1970
55 years old
Condition
Good
inspected April 2024
Type
Frame
Concrete Continuous
Length
31 ft
2 main spans
Daily traffic
3,719
2023 count
Owner
State
State Highway Agency

About this bridge

NH152 over North River is a concrete continuous frame carrying NH152 over North River in Rockingham County, New Hampshire. It was built in 1970, so it is 55 years old, younger than the New Hampshire average of 56.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,719 vehicles a day, roughly 4% of them trucks, projected to reach 5,504 by 2043. The structure is 31 ft (9.5 m) long and 37 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesNH152
CrossesNorth River
Location.3MI from Jct. Rte. 156
RouteState Highway 152
Coordinates43.11827, -71.10272
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating71.7 US tons
Inventory rating42.8 US tons

Structure

Structure typeFrame
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length31 ft (9.5 m)
Longest span15 ft (4.6 m)
Deck width37 ft (11.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,719 (2023)
Projected traffic5,504 by 2043
Trucks4%
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 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 NH152 over North River built?

It was built in 1970, making it 55 years old in 2025.

What condition is NH152 over North River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2024.

How much traffic does NH152 over North River carry?

About 3,719 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is NH152 over North River?

The structure is 31 ft (9.5 m) long with a longest span of 15 ft (4.6 m) and a deck 37 ft wide.

Who owns NH152 over North River?

It is owned by the State Highway Agency.