US Bridges

Stinson Lake Road over Stinson Brook

Good

Grafton County, New Hampshire · 1.4 MI S Ellsworth Tl · Structure no. 022501430015400

Built
1936
89 years old, rebuilt 1968
Condition
Good
inspected May 2024
Type
Culvert
Concrete Continuous
Length
27 ft
2 main spans
Daily traffic
418
2023 count
Owner
State
State Highway Agency

About this bridge

Stinson Lake Road over Stinson Brook is a concrete continuous culvert carrying Stinson Lake Road over Stinson Brook in Grafton County, New Hampshire. It was built in 1936 and reconstructed in 1968, so it is 89 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 418 vehicles a day, roughly 10% of them trucks, projected to reach 618 by 2043. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 29.8 mi (48 km).

CarriesStinson Lake Road
CrossesStinson Brook
Location1.4 MI S Ellsworth Tl
RouteState Highway 0
Coordinates43.86119, -71.80752
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 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
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating99 US tons
Inventory rating53 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 10
Structure length27 ft (8.2 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic418 (2023)
Projected traffic618 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 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 Stinson Lake Road over Stinson Brook built?

It was built in 1936, making it 89 years old in 2025. It was reconstructed in 1968.

What condition is Stinson Lake Road over Stinson 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 May 2024.

How much traffic does Stinson Lake Road over Stinson Brook carry?

About 418 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Stinson Lake Road over Stinson Brook?

The structure is 27 ft (8.2 m) long with a longest span of 13 ft (4 m).

Who owns Stinson Lake Road over Stinson Brook?

It is owned by the State Highway Agency.