US Bridges

Nh 10 over Sawyer Brook

Fair

Sullivan County, New Hampshire · 2.2 Mi. from Croydon Tl · Structure no. 010001160008100

Built
1968
57 years old
Condition
Fair
inspected April 2023
Type
Frame
Concrete
Length
22 ft
1 main span
Daily traffic
6,896
2023 count
Owner
State
State Highway Agency

About this bridge

Nh 10 over Sawyer Brook is a concrete frame carrying Nh 10 over Sawyer Brook in Sullivan County, New Hampshire. It was built in 1968, so it is 57 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 6,896 vehicles a day, roughly 4% of them trucks, projected to reach 10,206 by 2043. The structure is 22 ft (6.7 m) long and 48 ft wide. If it were closed, the detour would be 18 mi (29 km).

Location

Open in Google Maps
CarriesNh 10
CrossesSawyer Brook
Location2.2 Mi. from Croydon Tl
RouteState Highway 10
CountySullivan County
StateNew Hampshire
Coordinates43.49755, -72.13445
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74 US tons
Inventory rating44.3 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span22 ft (6.7 m)
Deck width48 ft (14.5 m)
Roadway width43 ft (13.1 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 Sawyer Brook built?

It was built in 1968, making it 57 years old in 2025.

What condition is Nh 10 over Sawyer 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 Sawyer Brook carry?

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

How long is Nh 10 over Sawyer Brook?

The structure is 22 ft (6.7 m) long with a longest span of 22 ft (6.7 m) and a deck 48 ft wide.

Who owns Nh 10 over Sawyer Brook?

It is owned by the State Highway Agency.