US Bridges

Dupaw Gould Road over Lancy Brook

Poor

Hillsborough County, New Hampshire · 1.4 MI FR Mcintosh RD · Structure no. 003400650008500

Built
1987
38 years old
Condition
Poor
inspected June 2024
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
22 ft
1 main span
Daily traffic
559
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Dupaw Gould Road over Lancy Brook is a aluminum, wrought iron, or cast iron culvert carrying Dupaw Gould Road over Lancy Brook in Hillsborough County, New Hampshire. It was built in 1987, so it is 38 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 559 vehicles a day, roughly 4% of them trucks, projected to reach 827 by 2043. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesDupaw Gould Road
CrossesLancy Brook
Location1.4 MI FR Mcintosh RD
CountyHillsborough County
StateNew Hampshire
Coordinates42.74134, -71.68639
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 16 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.5 US tons
Inventory rating36.4 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans1
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span22 ft (6.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic559 (2023)
Projected traffic827 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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Dupaw Gould Road over Lancy Brook built?

It was built in 1987, making it 38 years old in 2025.

What condition is Dupaw Gould Road over Lancy Brook in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.

How much traffic does Dupaw Gould Road over Lancy Brook carry?

About 559 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Dupaw Gould Road over Lancy Brook?

The structure is 22 ft (6.7 m) long with a longest span of 22 ft (6.7 m).

Who owns Dupaw Gould Road over Lancy Brook?

It is owned by the City or Municipal Highway Agency.