US Bridges

Croydon Brook Road over Beaver Brook

Good

Sullivan County, New Hampshire · 0.5 MI Newport Tl · Structure no. 005601070006800

Built
1974
51 years old
Condition
Good
inspected July 2023
Type
Frame
Concrete
Length
26 ft
1 main span
Daily traffic
178
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Croydon Brook Road over Beaver Brook is a concrete frame carrying Croydon Brook Road over Beaver Brook in Sullivan County, New Hampshire. It was built in 1974, so it is 51 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 178 vehicles a day, roughly 4% of them trucks, projected to reach 263 by 2043. The structure is 26 ft (7.9 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesCroydon Brook Road
CrossesBeaver Brook
Location0.5 MI Newport Tl
CountySullivan County
StateNew Hampshire
Coordinates43.41391, -72.19038
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating36 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span23 ft (7 m)
Deck width32 ft (9.9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic178 (2023)
Projected traffic263 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 Croydon Brook Road over Beaver Brook built?

It was built in 1974, making it 51 years old in 2025.

What condition is Croydon Brook Road over Beaver 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 Croydon Brook Road over Beaver Brook carry?

About 178 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Croydon Brook Road over Beaver Brook?

The structure is 26 ft (7.9 m) long with a longest span of 23 ft (7 m) and a deck 32 ft wide.

Who owns Croydon Brook Road over Beaver Brook?

It is owned by the City or Municipal Highway Agency.