US Bridges

NH113 over Chandler Brook

Fair

Carroll County, New Hampshire · 3.0 MI S of Maine Sl · Structure no. 004301010012500

Built
1931
94 years old
Condition
Fair
inspected July 2024
Type
Frame
Concrete
Length
25 ft
1 main span
Daily traffic
232
2023 count
Owner
State
State Highway Agency

About this bridge

NH113 over Chandler Brook is a concrete frame carrying NH113 over Chandler Brook in Carroll County, New Hampshire. It was built in 1931, so it is 94 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 232 vehicles a day, roughly 4% of them trucks, projected to reach 343 by 2043. The structure is 25 ft (7.6 m) long and 28 ft wide. If it were closed, the detour would be 52.2 mi (84 km).

Location

Open in Google Maps
CarriesNH113
CrossesChandler Brook
Location3.0 MI S of Maine Sl
RouteState Highway 113
CountyCarroll County
StateNew Hampshire
Coordinates44.2263, -71.01153
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.9 US tons
Inventory rating44.5 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length25 ft (7.6 m)
Longest span22 ft (6.7 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic232 (2023)
Projected traffic343 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed52.2 mi (84 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 NH113 over Chandler Brook built?

It was built in 1931, making it 94 years old in 2025.

What condition is NH113 over Chandler 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 July 2024.

How much traffic does NH113 over Chandler Brook carry?

About 232 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is NH113 over Chandler Brook?

The structure is 25 ft (7.6 m) long with a longest span of 22 ft (6.7 m) and a deck 28 ft wide.

Who owns NH113 over Chandler Brook?

It is owned by the State Highway Agency.