US Bridges

Nh 26 over Androscoggin River

Good

Coos County, New Hampshire · 0.2 MI East of RTE 16 · Structure no. 008001140011900

Built
1996
29 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
155 ft
1 main span
Daily traffic
1,084
2023 count
Owner
State
State Highway Agency

About this bridge

Nh 26 over Androscoggin River is a steel stringer/multi-beam or girder carrying Nh 26 over Androscoggin River in Coos County, New Hampshire. It was built in 1996, so it is 29 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 1,084 vehicles a day, roughly 10% of them trucks, projected to reach 1,604 by 2043. The structure is 155 ft (47.1 m) long and 51 ft wide. If it were closed, the detour would be 52.2 mi (84 km).

Location

Open in Google Maps
CarriesNh 26
CrossesAndroscoggin River
Location0.2 MI East of RTE 16
RouteState Highway 26
CountyCoos County
StateNew Hampshire
Coordinates44.77821, -71.13183
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 inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating87.5 US tons
Inventory rating52.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length155 ft (47.1 m)
Longest span150 ft (45.7 m)
Deck width51 ft (15.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,084 (2023)
Projected traffic1,604 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed52.2 mi (84 km)
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 Androscoggin River built?

It was built in 1996, making it 29 years old in 2025.

What condition is Nh 26 over Androscoggin 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 May 2024.

How much traffic does Nh 26 over Androscoggin River carry?

About 1,084 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Nh 26 over Androscoggin River?

The structure is 155 ft (47.1 m) long with a longest span of 150 ft (45.7 m) and a deck 51 ft wide.

Who owns Nh 26 over Androscoggin River?

It is owned by the State Highway Agency.