US Bridges

Fairgrounds Road over West Branch Brook

Fair

Merrimack County, New Hampshire · 1.9 MI from Newbury Tl · Structure no. 002800640014000

Built
2001
24 years old
Condition
Fair
inspected September 2023
Type
Slab
Prestressed Concrete
Length
53 ft
1 main span
Daily traffic
386
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Fairgrounds Road over West Branch Brook is a prestressed concrete slab carrying Fairgrounds Road over West Branch Brook in Merrimack County, New Hampshire. It was built in 2001, so it is 24 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 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 386 vehicles a day, projected to reach 571 by 2043. The structure is 53 ft (16.3 m) long and 24 ft wide.

Location

Open in Google Maps
CarriesFairgrounds Road
CrossesWest Branch Brook
Location1.9 MI from Newbury Tl
CountyMerrimack County
StateNew Hampshire
Coordinates43.2598, -72.02584
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating95 US tons
Inventory rating57 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length53 ft (16.3 m)
Longest span50 ft (15.2 m)
Deck width24 ft (7.4 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic386 (2023)
Projected traffic571 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-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 Fairgrounds Road over West Branch Brook built?

It was built in 2001, making it 24 years old in 2025.

What condition is Fairgrounds Road over West Branch 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 September 2023.

How much traffic does Fairgrounds Road over West Branch Brook carry?

About 386 vehicles per day (2023 count).

How long is Fairgrounds Road over West Branch Brook?

The structure is 53 ft (16.3 m) long with a longest span of 50 ft (15.2 m) and a deck 24 ft wide.

Who owns Fairgrounds Road over West Branch Brook?

It is owned by the City or Municipal Highway Agency.