US Bridges

Fling Road over Clay Brook

Good

Sullivan County, New Hampshire · .35 Mi. East of Route 12 · Structure no. 004201550006200

Built
2011
14 years old
Condition
Good
inspected July 2023
Type
Slab
Concrete
Length
30 ft
1 main span
Daily traffic
96
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Fling Road over Clay Brook is a concrete slab carrying Fling Road over Clay Brook in Sullivan County, New Hampshire. It was built in 2011, so it is 14 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 good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 96 vehicles a day, roughly 4% of them trucks, projected to reach 142 by 2043. The structure is 30 ft (9.1 m) long and 35 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesFling Road
CrossesClay Brook
Location.35 Mi. East of Route 12
CountySullivan County
StateNew Hampshire
Coordinates43.24644, -72.41773
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating99.5 US tons
Inventory rating59.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length30 ft (9.1 m)
Longest span25 ft (7.6 m)
Deck width35 ft (10.6 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic96 (2023)
Projected traffic142 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 Fling Road over Clay Brook built?

It was built in 2011, making it 14 years old in 2025.

What condition is Fling Road over Clay Brook in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does Fling Road over Clay Brook carry?

About 96 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Fling Road over Clay Brook?

The structure is 30 ft (9.1 m) long with a longest span of 25 ft (7.6 m) and a deck 35 ft wide.

Who owns Fling Road over Clay Brook?

It is owned by the City or Municipal Highway Agency.