US Bridges

Daisy Hill Road over Great Brook

Fair

Grafton County, New Hampshire · 0.09 MI FR Nh RTE 120 · Structure no. 014401410009300

Built
1955
70 years old
Condition
Fair
inspected July 2024
Type
Culvert
Steel
Length
22 ft
1 main span
Daily traffic
630
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Daisy Hill Road over Great Brook is a steel culvert carrying Daisy Hill Road over Great Brook in Grafton 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 630 vehicles a day, roughly 4% of them trucks, projected to reach 932 by 2043. The structure is 22 ft (6.8 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesDaisy Hill Road
CrossesGreat Brook
Location0.09 MI FR Nh RTE 120
CountyGrafton County
StateNew Hampshire
Coordinates43.62502, -72.23305
Functional classUrban 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadH 15
Structure length22 ft (6.8 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 traffic630 (2023)
Projected traffic932 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Daisy Hill Road over Great Brook built?

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

What condition is Daisy Hill 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 July 2024.

How much traffic does Daisy Hill Road over Great Brook carry?

About 630 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Daisy Hill Road over Great Brook?

The structure is 22 ft (6.8 m) long with a longest span of 22 ft (6.7 m).

Who owns Daisy Hill Road over Great Brook?

It is owned by the City or Municipal Highway Agency.