US Bridges

Nh 11 Ramp over Sugar River

Fair

Sullivan County, New Hampshire · 0.1 MI from Newport Tl · Structure no. 024700690007900

Built
1923
102 years old, rebuilt 1979
Condition
Fair
inspected April 2023
Type
Tee Beam
Concrete
Length
28 ft
1 main span
Daily traffic
1,110
2023 count
Owner
State
State Highway Agency

About this bridge

Nh 11 Ramp over Sugar River is a concrete tee beam carrying Nh 11 Ramp over Sugar River in Sullivan County, New Hampshire. It was built in 1923 and reconstructed in 1979, so it is 102 years old, older 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 1,110 vehicles a day, roughly 4% of them trucks, projected to reach 1,642 by 2043. The structure is 28 ft (8.5 m) long and 35 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesNh 11 Ramp
CrossesSugar River
Location0.1 MI from Newport Tl
RouteState Highway 103
CountySullivan County
StateNew Hampshire
Coordinates43.37288, -72.12432
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length28 ft (8.5 m)
Longest span24 ft (7.3 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,110 (2023)
Projected traffic1,642 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemYes

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 11 Ramp over Sugar River built?

It was built in 1923, making it 102 years old in 2025. It was reconstructed in 1979.

What condition is Nh 11 Ramp over Sugar River 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 April 2023.

How much traffic does Nh 11 Ramp over Sugar River carry?

About 1,110 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Nh 11 Ramp over Sugar River?

The structure is 28 ft (8.5 m) long with a longest span of 24 ft (7.3 m) and a deck 35 ft wide.

Who owns Nh 11 Ramp over Sugar River?

It is owned by the State Highway Agency.