What Antelope ground means for concrete driveways
Expansive clay with notable seasonal movement, a consistent driver of slab cracking here.
Driveways near the American and Sacramento river corridors sit on sandy alluvium that drains well and compacts predictably. Move east toward Rancho Cordova, south to Elk Grove or north to Antelope and expansive clay takes over. The same slab detail is not appropriate in both places, which is why we look at the ground before quoting a section rather than after.
- Builder-grade driveways from this era commonly lack adequate reinforcement for clay movement.
- Tight lot spacing makes staging and material delivery a planning item.
- Patio slabs poured hard against foundations without isolation joints are a frequent found condition.
- Drainage between closely spaced homes needs attention during any side-yard work.
