US Bridges

Stage Road over Suncook River

Good

Belknap County, New Hampshire · Town Rd. · Structure no. 009201440004700

Built
1992
33 years old
Condition
Good
inspected August 2023
Type
Slab
Prestressed Concrete
Length
36 ft
1 main span
Daily traffic
1,172
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Stage Road over Suncook River is a prestressed concrete slab carrying Stage Road over Suncook River in Belknap County, New Hampshire. It was built in 1992, so it is 33 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 1,172 vehicles a day, roughly 4% of them trucks, projected to reach 1,734 by 2043. The structure is 36 ft (11 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesStage Road
CrossesSuncook River
LocationTown Rd.
Coordinates43.41676, -71.29672
Functional classRural Minor 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 protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating87 US tons
Inventory rating52 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length36 ft (11 m)
Longest span32 ft (9.8 m)
Deck width32 ft (9.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,172 (2023)
Projected traffic1,734 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible 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 Stage Road over Suncook River built?

It was built in 1992, making it 33 years old in 2025.

What condition is Stage Road over Suncook 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 August 2023.

How much traffic does Stage Road over Suncook River carry?

About 1,172 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Stage Road over Suncook River?

The structure is 36 ft (11 m) long with a longest span of 32 ft (9.8 m) and a deck 32 ft wide.

Who owns Stage Road over Suncook River?

It is owned by the City or Municipal Highway Agency.