US Bridges

Hadley Road over Contoocook River

Fair

Cheshire County, New Hampshire · 0.9MI. Tl Peterboro · Structure no. 013401890009900

Built
1939
86 years old
Condition
Fair
inspected July 2024
Type
Frame
Concrete
Length
57 ft
1 main span
Daily traffic
68
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Hadley Road over Contoocook River is a concrete frame carrying Hadley Road over Contoocook River in Cheshire County, New Hampshire. It was built in 1939, so it is 86 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 68 vehicles a day, roughly 4% of them trucks, projected to reach 100 by 2043. The structure is 57 ft (17.4 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesHadley Road
CrossesContoocook River
Location0.9MI. Tl Peterboro
CountyCheshire County
StateNew Hampshire
Coordinates42.82561, -71.99122
Functional classRural Local

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating65.9 US tons
Inventory rating21.4 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length57 ft (17.4 m)
Longest span50 ft (15.2 m)
Deck width32 ft (9.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic68 (2023)
Projected traffic100 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Hadley Road over Contoocook River built?

It was built in 1939, making it 86 years old in 2025.

What condition is Hadley Road over Contoocook 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 July 2024.

How much traffic does Hadley Road over Contoocook River carry?

About 68 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Hadley Road over Contoocook River?

The structure is 57 ft (17.4 m) long with a longest span of 50 ft (15.2 m) and a deck 32 ft wide.

Who owns Hadley Road over Contoocook River?

It is owned by the City or Municipal Highway Agency.