3/8 Inch Chips and Bulk Aggregates for Kahuku, HI
Hawaii Rock Supply handles gravel and aggregate delivery in Kahuku, HI, by the ton. Base course is the local name for the compacting layer under drives, pads and flatwork, and in Hawaii it is crushed basalt.
This is Windward Oahu and the North Shore, where the trades drop rain on the Koolau almost daily and the ground below drains slowly. That shapes which sizes you want on a job here.
Materials for Kahuku Projects
Washed stone does the drainage work on this side of the island. French drains, drywells and downspout runs all depend on clean, open stone that lets water move instead of holding it.
Many subdivisions here have no street storm drain to tie into, so a drywell carries the roof and yard water. That makes the washed sizes the ones to sort out first.
Start at the coarse end. #4 Crushed Stone is 1-1/2 inch crushed basalt, used for heavy drainage, construction entrances and trench bottoms on soft or wet ground.
#67 Stone is a numbered size named directly in the state highway aggregate section. It suits pipe bedding, crushed rock cradles and drainage.
Drain Rock, also called filter rock or lava rock, is the durable island stone for drywells, rock pits, French drains and foundation drains.
Then the finer washed sizes. #8 Crushed Stone covers fine drainage, concrete aggregate and paver joints, and #89 Crushed Stone is small washed basalt for tight bedding.
For drive surfacing, 3/4 Blue Rock is the island name for clean crushed basalt at that size. It works for drainage beds, trench bottoms and construction entrances.
3F Base Course is the compacting layer. It goes under drives, parking pads and slab or shed bases, and island yards and county public works specifications call it base course.
Under that, Coral Fill is specified as subbase rather than base course. It raises grade and builds bulk fill beneath the base layer.
Above the base, Stone Screenings bed pavers, flagstone and slabs, and fill the joints. Cinder is the island material for paths, garden beds and light drives.
Delivery to Kahuku 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.
Kahuku sits in Honolulu County, and delivery covers the surrounding area, including Kailua, Kaneohe, Pearl City, Waipahu and Kapolei. A dump truck tips the load on site in one pile.
Plan the drop point before the truck arrives, since the pile lands where the truck can reach and stays there. Bulk material is heavy, so a firm, reachable spot keeps the job moving.
Ground and Conditions in Kahuku
Work runs year round here, with the softest ground from October through April. Heavy runoff comes off the pali after any stalled front.
Across the Windward Oahu and the North Shore, the clay below drains slowly and low ground sits close to the water table. Drives and pads need a base course layer thick enough to stay above ground that is rarely fully dry.
That is why the drainage side matters as much as the surface. Washed stone in a drywell or French drain gives the water somewhere to go, and the base course above it holds the load.
Erosion is the other half of the picture on this coast. Steep stream and gulch scour off the Koolau, hillside slips on saturated clay, and shoreline erosion with high winter surf all call for armor stone.
RipRap, also called armor rock or one man rock, is the hand-placeable size for gulch and stream bank armoring, culvert outlets and slope work.
Timing a delivery around the working season helps. Book the date at checkout and have the site reachable before the truck is due.
Order Bulk Aggregates for Your Kahuku Project
Hawaii Rock Supply delivers base course, washed stone, sand, soil and fill across Kahuku and the rest of Honolulu County. Choose your material, set the quantity by the ton or yard, and pick a delivery date at checkout.
Order online when your site is ready.