New Hampshire Concrete Prices, Codes & Climate

Ready-mix cost range

$150–$190per cubic yard

Frost depth reference

60″reference only

ACI 318 exposure classes

F3 · C2 · S0

Air entrainment

required for exterior flatwork

How much does concrete cost in New Hampshire?

Ready-mix in New Hampshire runs roughly $150 to $190 per cubic yard. That is an estimated band, not a quote — published US price sources disagree with each other by nearly two to one. How we source price figures.

What does the New Hampshire climate require?

Deep frost, a long freezing season and heavy road salt make ACI 306 cold-weather protection standard from late October into April, with air entrainment on every exterior placement.

Under ACI 318, New Hampshire falls in exposure classes F3, C2, S0. Air entrainment is required for exterior flatwork. Air entrainment is required for classes F1, F2 and F3.

How deep is the frost line in New Hampshire?

Compiled reference tables put New Hampshire at about 60 inches. That figure is orientation only. The footing depth you actually have to build to is determined by your local building department — IRC R403.1.4 requires footings to extend below the locally determined frost line, and there is no national number.

Soil concerns

Shallow ledge and glacial till dominate, with soft marine clay in the seacoast lowlands and frost-susceptible silt in the river valleys that heaves badly under thin slabs.

Seismic

Low to moderate — New England's background seismicity is real but residential flatwork needs no special detailing.

Contractor licensing

We do not publish a licensing determination for New Hampshire without a dated primary source. We do not publish a state licensing determination without a dated primary source. Check the state board directly. Check the official source.

Cities

• Manchester
• Nashua
• Concord
• Dover
• Rochester
• Keene