US Bridges

South Road over S Br Ashuelot River

Fair

Cheshire County, New Hampshire · .12MI JCT Nh 32 · Structure no. 025101460008600

Built
1936
89 years old, rebuilt 1983
Condition
Fair
inspected June 2024
Type
Tee Beam
Concrete
Length
54 ft
1 main span
Daily traffic
1,100
2023 count
Owner
State
State Highway Agency

About this bridge

South Road over S Br Ashuelot River is a concrete tee beam carrying South Road over S Br Ashuelot River in Cheshire County, New Hampshire. It was built in 1936 and reconstructed in 1983, so it is 89 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 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 1,100 vehicles a day, roughly 10% of them trucks, projected to reach 1,628 by 2043. The structure is 54 ft (16.5 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSouth Road
CrossesS Br Ashuelot River
Location.12MI JCT Nh 32
RouteState Highway 0
Coordinates42.84444, -72.27639
Functional classRural Minor 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating26.5 US tons
Inventory rating15.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 10
Structure length54 ft (16.5 m)
Longest span50 ft (15.2 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2023)
Projected traffic1,628 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 South Road over S Br Ashuelot River built?

It was built in 1936, making it 89 years old in 2025. It was reconstructed in 1983.

What condition is South Road over S Br Ashuelot 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 June 2024.

How much traffic does South Road over S Br Ashuelot River carry?

About 1,100 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is South Road over S Br Ashuelot River?

The structure is 54 ft (16.5 m) long with a longest span of 50 ft (15.2 m) and a deck 27 ft wide.

Who owns South Road over S Br Ashuelot River?

It is owned by the State Highway Agency.