US Bridges

Sand Hill Road over Brook

Good

Sullivan County, New Hampshire · 1.4 Mi. Croydon Tl · Structure no. 019201540012900

Built
1984
41 years old, rebuilt 2023
Condition
Good
inspected July 2024
Type
Slab
Prestressed Concrete
Length
37 ft
1 main span
Daily traffic
157
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Sand Hill Road over Brook is a prestressed concrete slab carrying Sand Hill Road over Brook in Sullivan County, New Hampshire. It was built in 1984 and reconstructed in 2023, so it is 41 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 157 vehicles a day, roughly 4% of them trucks, projected to reach 232 by 2043. The structure is 37 ft (11.3 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSand Hill Road
CrossesBrook
Location1.4 Mi. Croydon Tl
Coordinates43.38041, -72.15386
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length37 ft (11.3 m)
Longest span33 ft (10.1 m)
Deck width26 ft (7.8 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic157 (2023)
Projected traffic232 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Sand Hill Road over Brook built?

It was built in 1984, making it 41 years old in 2025. It was reconstructed in 2023.

What condition is Sand Hill Road over 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 2024.

How much traffic does Sand Hill Road over Brook carry?

About 157 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Sand Hill Road over Brook?

The structure is 37 ft (11.3 m) long with a longest span of 33 ft (10.1 m) and a deck 26 ft wide.

Who owns Sand Hill Road over Brook?

It is owned by the City or Municipal Highway Agency.