US Bridges

Drewsville Road over Great Brook

Fair

Sullivan County, New Hampshire · 1.49 Mi. N. Walpole Tl · Structure no. 014301120008400

Built
1955
70 years old
Condition
Fair
inspected May 2024
Type
Culvert
Steel
Length
31 ft
1 main span
Daily traffic
883
2023 count
Owner
State
State Highway Agency

About this bridge

Drewsville Road over Great Brook is a steel culvert carrying Drewsville Road over Great Brook in Sullivan County, New Hampshire. It was built in 1955, so it is 70 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 883 vehicles a day, roughly 4% of them trucks, projected to reach 1,306 by 2043. The structure is 31 ft (9.4 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesDrewsville Road
CrossesGreat Brook
Location1.49 Mi. N. Walpole Tl
RouteState Highway 0
CountySullivan County
StateNew Hampshire
Coordinates43.15307, -72.39359
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadH 15
Structure length31 ft (9.4 m)
Longest span31 ft (9.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic883 (2023)
Projected traffic1,306 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Drewsville Road over Great Brook built?

It was built in 1955, making it 70 years old in 2025.

What condition is Drewsville Road over Great Brook 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 May 2024.

How much traffic does Drewsville Road over Great Brook carry?

About 883 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Drewsville Road over Great Brook?

The structure is 31 ft (9.4 m) long with a longest span of 31 ft (9.4 m).

Who owns Drewsville Road over Great Brook?

It is owned by the State Highway Agency.