Crushed Stone, Sand and Gravel in Cobb, WI

Plan gravel and aggregate delivery in Cobb, WI around the working season, not around the calendar. Base work runs from the end of the spring thaw into late fall. Once frost comes out, silty ground on a steep grade ruts fast under a loaded truck.

Wisconsin Rock Supply sells bulk material by the ton. Traffic bond is the base most drives here start with, and it needs dry, settled ground to pack hard.

Materials for Cobb Projects

Start with the base, then pick the surface and the drainage stone that sit on top of it. The materials below cover most driveways, pads and walks in this part of Iowa County.

Traffic bond, also called 3/4 inch traffic bond or 3/4 inch dense graded base, is the crushed dense-graded base sold across much of Wisconsin. It packs hard and holds an edge.

Where the ground is soft or heavy with clay, breaker run goes down first as a coarse sub-base, then traffic bond caps it. Breaker run is specified under Section 311. If your drive already has a compacted traffic bond base, driveway gravel refreshes the surface.

Screenings, also called stone screenings or stone dust, bed pavers and pack into a walkable surface. For drainage, drain rock, also called clear drain stone, carries water away from a foundation or a downspout. Clear stone is crushed stone with the fines screened out, so water moves through it instead of pooling.

Ground and Conditions in Cobb

Rain and snowmelt run fast off the steep ridges into narrow valleys. Heavy storms can flood the valley floor, so low sites need to allow for high water after a big one.

Where limestone and dolomite bedrock sits shallow, water also drains through cracks, sinkholes and springs. Runoff on steep slopes and ridge-top fields washes loess downhill and cuts gullies. That is why a thin base on a slope, or at a hillside seep, ruts so easily.

Frost depth runs at least 48 inches for footings under the Uniform Dwelling Code and 48 to 72 inches under pavement by late winter. Silty soil holds water and softens as frost comes out, so build base depth for that. Class II state highways and posted county, town and village roads carry spring weight limits while frost comes out.

Delivery to Cobb and the Surrounding Area

Bulk material arrives by the truckload, so have the drop spot clear and reachable before the truck rolls in. Mark anything you do not want driven over. If the ground is soft, pick a firm staging area near the work.

Order online by the ton or the yard. Measure your area and depth first, then choose the quantity. A driveway base usually needs a minimum depth of a few inches once compacted, and loose material spreads deeper than that. Tell us the site conditions when you order so the right truck and material show up.

We deliver across Iowa County, including Dodgeville, Mineral Point, Barneveld, Highland and Arena. Cobb sits in Iowa County, and the same routes serve the surrounding towns.

Questions About Ordering in Cobb

Do you supply contractors working in Cobb?

Yes. Contractors working in Cobb and the rest of Iowa County order traffic bond, breaker run, washed stone and sand by the ton. Base work here runs from the end of the spring thaw into late fall, so schedule material around that window and around spring weight limits on posted roads.

Do you deliver traffic bond to Cobb, WI?

Yes. Traffic bond is the base most Cobb drives start with, and it comes by the truckload. Have the drop area clear and firm, and tell us about slope or soft ground when you order, because silty soil on a steep grade ruts easily under a loaded truck.

Order Base and Driveway Material for Your Cobb Project

Wisconsin Rock Supply stocks traffic bond, breaker run, driveway gravel, screenings and drain rock for driveways, parking pads and shed bases in Cobb and nearby Iowa County towns. Order online by the ton or the yard and set your delivery. Place your order when the ground is ready.