US Bridges

Nh 10 over Croydon Branch Sugar R

Fair

Sullivan County, New Hampshire · 0.06 Mi. from Newport Tl · Structure no. 005601130007000

Built
1973
52 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
131 ft
1 main span
Daily traffic
3,612
2023 count
Owner
State
State Highway Agency

About this bridge

Nh 10 over Croydon Branch Sugar R is a steel stringer/multi-beam or girder carrying Nh 10 over Croydon Branch Sugar R in Sullivan County, New Hampshire. It was built in 1973, so it is 52 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 3,612 vehicles a day, roughly 4% of them trucks, projected to reach 5,345 by 2043. The structure is 131 ft (39.9 m) long and 47 ft wide. If it were closed, the detour would be 18 mi (29 km).

Location

Open in Google Maps
CarriesNh 10
CrossesCroydon Branch Sugar R
Location0.06 Mi. from Newport Tl
RouteState Highway 10
CountySullivan County
StateNew Hampshire
Coordinates43.41484, -72.18609
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.3 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length131 ft (39.9 m)
Longest span121 ft (36.9 m)
Deck width47 ft (14.2 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,612 (2023)
Projected traffic5,345 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Nh 10 over Croydon Branch Sugar R built?

It was built in 1973, making it 52 years old in 2025.

What condition is Nh 10 over Croydon Branch Sugar R 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 May 2024.

How much traffic does Nh 10 over Croydon Branch Sugar R carry?

About 3,612 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Nh 10 over Croydon Branch Sugar R?

The structure is 131 ft (39.9 m) long with a longest span of 121 ft (36.9 m) and a deck 47 ft wide.

Who owns Nh 10 over Croydon Branch Sugar R?

It is owned by the State Highway Agency.