
Overview
Oklahoma's clays move with the weather, and a pavement is only as good as the subgrade beneath it. First Water modifies and stabilizes subgrade with lime, flyash, cement, and cement kiln dust, then proof rolls and compacts it to the geotechnical spec so the section holds up under load and through the seasons.
We treat subgrade as its own trade, not an afterthought wedged between dirt and paving, because it is the difference between a road that lasts and one that cracks in its first few winters.
What We Self-Perform
Subgrade Modification scope
- Lime, Flyash & Cement Stabilization
- Cement Kiln Dust Applications
- Moisture Conditioning
- Proof Rolling & Compaction
- Geogrid & Geotextile Reinforcement
- Built to the Geotech Report

A pavement is only as good as the subgrade beneath it. We build that layer like the whole road depends on it, because it does.

The rest of the scope
We self-perform all five, sequenced crew to crew on one schedule.
Build With Us
Have a site that needs to become a project? Send us the plans. You'll get one number, one schedule, and one accountable partner, from raw ground to final pavement. Call 405-664-6200 or reach our estimating team at estimating@fwcis.com.


