What stone should I use for drainage in Kula?

For a drywell, rock pit or French drain, Drain Rock is the island filter stone and it lets water move through the bed. For a drainage bed or trench bottom that needs clean, open stone, 3/4 Blue Rock is crushed basalt at that size. Both drain because they carry little fine material. A fines-bearing material like base course compacts instead, so it belongs under flatwork, not in a drain.

What should I have ready when the truck arrives?

Have the drop spot clear and reachable, with room for a dump truck to tip its load in one pile. Decide where that pile goes before the truck shows up, since the driver tips the material and does not spread or place it. Order your quantity by the ton or the yard and pick your delivery date at checkout.

Do you deliver outside Kula itself?

Yes. We deliver across Hawaii, and the surrounding towns and rural addresses around Kula are covered the same way as addresses in town. If you are not sure whether your address is reachable, send it over and we will confirm before you order.

Erosion Control Material Delivery in Kula, HI

Hawaii Rock Supply brings gravel and aggregate delivery in Kula, HI, to upcountry yards and job sites. Base course is the compacting layer here, and in Hawaii that means crushed basalt.

Kula sits on ash-derived soils across the Haleakala slopes. Those soils hold water and stay soft under load, so the base layer has to carry what the ground will not.

Materials for Kula Projects

Slope, swale and bank work on this side of Maui starts with coarse stone. Coarse, open-graded rock is what armors ground that water moves across, and it lets that water pass instead of pushing the soil downhill.

Riprap is the heaviest option. One man rock is the island name for the hand-placeable sizes, and it goes on gulch banks, culvert outlets and slope faces where the stone has to stay put.

RipRap is sized for armoring, not for walking on. Below that, #4 Crushed Stone works in trench bottoms and on soft, wet ground where a large open stone keeps the trench open.

For drainage beds and drywells, Drain Rock is the island filter stone, a durable lava rock that lets water move through a rock pit. Many subdivisions here have no street storm drain to tie into, so drywells do that work instead.

3/4 Blue Rock is clean crushed basalt at that size, used for drainage beds, trench bottoms and drive surfacing. It is washed rock, so it drains rather than binds.

When you need a layer that compacts instead of drains, the fines-bearing materials take over. 3F Base Course is crushed basalt base course for driveways, parking pads and slab bases.

Above a compacted base, 3/8" Crushed Stone is the chip size island quarries list, and it tops driveways, beds pipes and finishes paths.

Delivery to Kula and the Surrounding Area

You order online, choose a quantity by the ton or by the yard, and pick a delivery date at checkout. Each product page has a calculator if you want to size the load before you order.

A dump truck tips the material in one pile at the site. Coverage reaches Kula and the rest of Maui County, including Kahului, Kihei, Wailuku, Lahaina and Makawao.

Ground and Conditions in Kula

Work here runs year round, and the ground is softest from October through April. Ash soils hold water, so a base layer placed on ground that is rarely dry has to be built for that.

Erosion shows up as slips on saturated ash slopes and sheet erosion across cleared pasture. That is why coarse stone belongs on banks and swales, where it slows water and holds soil in place.

Gulches cut through these soils and carry runoff away fast. Drainage stone and filter rock give that water a path down and out instead of across your drive.

Order Rip Rap and Aggregate for Kula

Hawaii Rock Supply delivers riprap, drain rock, base course and the rest of the aggregate range across Kula and Maui County. Choose your material, size the load, and pick a delivery date at checkout to get your order on the way.

Rip Rap and Bulk Aggregates for Kula, HI