US Bridges

Quinttown Road over Jacobs Brook

Fair

Grafton County, New Hampshire · .45 Mi. So. Mousley Br RD · Structure no. 020301540006600

Built
2007
18 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
37 ft
1 main span
Daily traffic
96
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Quinttown Road over Jacobs Brook is a steel stringer/multi-beam or girder carrying Quinttown Road over Jacobs Brook in Grafton County, New Hampshire. It was built in 2007, so it is 18 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 fair condition with a lowest component rating of 5 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 96 vehicles a day, roughly 3% of them trucks, projected to reach 142 by 2043. The structure is 37 ft (11.4 m) long and 16 ft wide.

Location

Open in Google Maps
CarriesQuinttown Road
CrossesJacobs Brook
Location.45 Mi. So. Mousley Br RD
CountyGrafton County
StateNew Hampshire
Coordinates43.86917, -72.0484
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating39.2 US tons
Inventory rating23.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length37 ft (11.4 m)
Longest span32 ft (9.8 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic96 (2023)
Projected traffic142 by 2043
Trucks3%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Quinttown Road over Jacobs Brook built?

It was built in 2007, making it 18 years old in 2025.

What condition is Quinttown Road over Jacobs 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 April 2024.

How much traffic does Quinttown Road over Jacobs Brook carry?

About 96 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Quinttown Road over Jacobs Brook?

The structure is 37 ft (11.4 m) long with a longest span of 32 ft (9.8 m) and a deck 16 ft wide.

Who owns Quinttown Road over Jacobs Brook?

It is owned by the City or Municipal Highway Agency.