US Bridges

Nh 26 over Corser Brook

Good

Coos County, New Hampshire · 3.0 MI W of RTE 16 · Structure no. 008000520015100

Built
1954
71 years old
Condition
Good
inspected April 2024
Type
Frame
Concrete
Length
26 ft
1 main span
Daily traffic
981
2023 count
Owner
State
State Highway Agency

About this bridge

Nh 26 over Corser Brook is a concrete frame carrying Nh 26 over Corser Brook in Coos County, New Hampshire. It was built in 1954, so it is 71 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 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 981 vehicles a day, roughly 4% of them trucks, projected to reach 1,451 by 2043. The structure is 26 ft (7.9 m) long and 33 ft wide. If it were closed, the detour would be 55.9 mi (90 km).

CarriesNh 26
CrossesCorser Brook
Location3.0 MI W of RTE 16
RouteState Highway 26
Coordinates44.80117, -71.19315
Functional classRural Minor Arterial

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 evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating21.1 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length26 ft (7.9 m)
Longest span24 ft (7.3 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic981 (2023)
Projected traffic1,451 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed55.9 mi (90 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 26 over Corser Brook built?

It was built in 1954, making it 71 years old in 2025.

What condition is Nh 26 over Corser Brook 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 Nh 26 over Corser Brook carry?

About 981 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Nh 26 over Corser Brook?

The structure is 26 ft (7.9 m) long with a longest span of 24 ft (7.3 m) and a deck 33 ft wide.

Who owns Nh 26 over Corser Brook?

It is owned by the State Highway Agency.