US Bridges

Barnet Road over Connecticut River

Fair

Grafton County, New Hampshire · Vermont State Line · Structure no. 017401100012500

Built
1937
88 years old, rebuilt 2000
Condition
Fair
inspected June 2023
Type
Truss - Thru
Steel
Length
389 ft
2 main spans
Daily traffic
992
2023 count
Owner
State
State Highway Agency

About this bridge

Barnet Road over Connecticut River is a steel truss - thru carrying Barnet Road over Connecticut River in Grafton County, New Hampshire. It was built in 1937 and reconstructed in 2000, so it is 88 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 992 vehicles a day, roughly 10% of them trucks, projected to reach 1,468 by 2043. The structure is 389 ft (118.6 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesBarnet Road
CrossesConnecticut River
LocationVermont State Line
RouteState Highway 0
CountyGrafton County
StateNew Hampshire
Coordinates44.28697, -72.05716
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating43 US tons
Inventory rating25.7 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckClosed grating
Main spans2
Design loadH 15
Structure length389 ft (118.6 m)
Longest span261 ft (79.6 m)
Deck width29 ft (8.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deck15 ft (4.5 m)

Traffic and service

Average daily traffic992 (2023)
Projected traffic1,468 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad and waterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible 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)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Barnet Road over Connecticut River built?

It was built in 1937, making it 88 years old in 2025. It was reconstructed in 2000.

What condition is Barnet Road over Connecticut River 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 June 2023.

How much traffic does Barnet Road over Connecticut River carry?

About 992 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Barnet Road over Connecticut River?

The structure is 389 ft (118.6 m) long with a longest span of 261 ft (79.6 m) and a deck 29 ft wide.

Who owns Barnet Road over Connecticut River?

It is owned by the State Highway Agency.