Delaware Concrete Prices, Codes & Climate

Ready-mix cost range

$145–$180per cubic yard

Frost depth reference

32″reference only

ACI 318 exposure classes

F3 · C2 · S0

Air entrainment

required for exterior flatwork

How much does concrete cost in Delaware?

Ready-mix in Delaware runs roughly $145 to $180 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 Delaware climate require?

Winters are mild by Northeast standards but still deliver reliable freeze-thaw cycling, and New Castle County roads are salted heavily, so air entrainment is standard on all exterior flatwork.

Under ACI 318, Delaware 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 Delaware?

Compiled reference tables put Delaware at about 32 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

Atlantic coastal plain sand and silt cover the state with a narrow Piedmont fringe above Wilmington; a high water table near the Delaware Bay complicates subgrade drainage and compaction.

Seismic

Very low seismicity with only rare small events. No special seismic detailing is required for residential concrete.

Contractor licensing

We do not publish a licensing determination for Delaware without a dated primary source. We do not publish a state licensing determination without a dated primary source.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

• Wilmington
• Dover
• Newark
• Middletown
• Bear
• Smyrna