US Bridges

Nh 26 over Mohawk River

Good

Coos County, New Hampshire · 8MI East of JCT US3 · Structure no. 005002040006200

Built
2007
18 years old
Condition
Good
inspected June 2023
Type
Box Beam or Girders - Multiple
Concrete
Length
43 ft
1 main span
Daily traffic
926
2023 count
Owner
State
State Highway Agency

About this bridge

Nh 26 over Mohawk River is a concrete box beam or girders - multiple carrying Nh 26 over Mohawk River in Coos County, New Hampshire. It was built in 2007, so it is 18 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 926 vehicles a day, roughly 8% of them trucks, projected to reach 1,370 by 2043. The structure is 43 ft (13 m) long and 36 ft wide.

CarriesNh 26
CrossesMohawk River
Location8MI East of JCT US3
RouteState Highway 26
Coordinates44.87004, -71.34105
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating90.2 US tons
Inventory rating54 US tons

Structure

MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length43 ft (13 m)
Longest span40 ft (12.2 m)
Deck width36 ft (11.1 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic926 (2023)
Projected traffic1,370 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Nh 26 over Mohawk River built?

It was built in 2007, making it 18 years old in 2025.

What condition is Nh 26 over Mohawk 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 June 2023.

How much traffic does Nh 26 over Mohawk River carry?

About 926 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Nh 26 over Mohawk River?

The structure is 43 ft (13 m) long with a longest span of 40 ft (12.2 m) and a deck 36 ft wide.

Who owns Nh 26 over Mohawk River?

It is owned by the State Highway Agency.