US Bridges

NH112 over Sabbaday Brook

Fair

Grafton County, New Hampshire · 0.8 MI West of Albany Tl · Structure no. 026602480017500

Built
1953
72 years old, rebuilt 1993
Condition
Fair
inspected August 2024
Type
Tee Beam
Concrete
Length
43 ft
1 main span
Daily traffic
5,352
2023 count
Owner
State
State Highway Agency

About this bridge

NH112 over Sabbaday Brook is a concrete tee beam carrying NH112 over Sabbaday Brook in Grafton County, New Hampshire. It was built in 1953 and reconstructed in 1993, so it is 72 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 5,352 vehicles a day, roughly 4% of them trucks, projected to reach 7,920 by 2043. The structure is 43 ft (13.1 m) long and 31 ft wide. If it were closed, the detour would be 55.9 mi (90 km).

CarriesNH112
CrossesSabbaday Brook
Location0.8 MI West of Albany Tl
RouteState Highway 112
Coordinates43.99748, -71.3918
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37 US tons
Inventory rating27 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length43 ft (13.1 m)
Longest span39 ft (11.9 m)
Deck width31 ft (9.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,352 (2023)
Projected traffic7,920 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed55.9 mi (90 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 NH112 over Sabbaday Brook built?

It was built in 1953, making it 72 years old in 2025. It was reconstructed in 1993.

What condition is NH112 over Sabbaday Brook 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 August 2024.

How much traffic does NH112 over Sabbaday Brook carry?

About 5,352 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is NH112 over Sabbaday Brook?

The structure is 43 ft (13.1 m) long with a longest span of 39 ft (11.9 m) and a deck 31 ft wide.

Who owns NH112 over Sabbaday Brook?

It is owned by the State Highway Agency.