US Bridges

Nh 10 over Stocker Brook

Fair

Sullivan County, New Hampshire · 1.6 Mi. from Croydon Tl · Structure no. 010001140006900

Built
1936
89 years old, rebuilt 1969
Condition
Fair
inspected April 2023
Type
Frame
Concrete
Length
30 ft
1 main span
Daily traffic
6,896
2023 count
Owner
State
State Highway Agency

About this bridge

Nh 10 over Stocker Brook is a concrete frame carrying Nh 10 over Stocker Brook in Sullivan County, New Hampshire. It was built in 1936 and reconstructed in 1969, so it is 89 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 6,896 vehicles a day, roughly 4% of them trucks, projected to reach 10,206 by 2043. The structure is 30 ft (9.1 m) long and 36 ft wide. If it were closed, the detour would be 18 mi (29 km).

Location

Open in Google Maps
CarriesNh 10
CrossesStocker Brook
Location1.6 Mi. from Croydon Tl
RouteState Highway 10
CountySullivan County
StateNew Hampshire
Coordinates43.48971, -72.13692
Functional classRural Major Collector

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 inspectionApril 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 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 rating46.1 US tons
Inventory rating25.2 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length30 ft (9.1 m)
Longest span30 ft (9.1 m)
Deck width36 ft (10.9 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,896 (2023)
Projected traffic10,206 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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 Nh 10 over Stocker Brook built?

It was built in 1936, making it 89 years old in 2025. It was reconstructed in 1969.

What condition is Nh 10 over Stocker Brook 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 April 2023.

How much traffic does Nh 10 over Stocker Brook carry?

About 6,896 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Nh 10 over Stocker Brook?

The structure is 30 ft (9.1 m) long with a longest span of 30 ft (9.1 m) and a deck 36 ft wide.

Who owns Nh 10 over Stocker Brook?

It is owned by the State Highway Agency.