Concrete Contractors in Sloan, IA

Sloan sits on the Missouri River floodplain near Interstate 29, and for concrete contractors that one fact shapes every job. The town was platted in 1870 by the president of the Sioux City and Pacific Railway and named for railroad official Samuel Sloan. Its population was 1,032 in 2000, 973 in 2010 and 1,042 in 2020. Housing has been nearly constant: 449 units in 2000, 447 in 2010 and 451 in 2020. Almost every home in town is decades old.

What floodplain ground means for a slab

River-bottom soil is often silty and holds water. It can stay saturated well into spring. When saturated soil freezes, it expands and lifts whatever sits on it. When it thaws, it softens and lets slabs settle. That cycle is why old driveways and walks in low towns tend to have heaved panels, tipped steps and sunken spots.

Our answer is a better base: 1. Dig out soft, organic soil under the old slab. 2. Bring in crushed gravel and compact it in layers. 3. Set forms so the finished slab sheds water. 4. Pour air-entrained concrete and cut joints the same day.

A thicker base costs more at the start, but it is the part of the job that keeps a slab flat on wet ground.

High water in 2011

During the 2011 Missouri River flood, the WinnaVegas Casino near Sloan became inaccessible in June, and people were ferried across the water by an amphibious vehicle. When water stands near homes for weeks, soil under slabs can wash out. If your driveway, patio or garage floor has settled or cracked since a high-water year, a check of the base is the place to start. The town itself is on the Missouri River floodplain, at about 1,073 feet, so the water table and spring runoff are worth checking on any lot here.

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Older homes, practical fixes

With housing this stable, most of our Sloan work is repair and replacement:

• Driveways that have broken into sections
• Front steps that have settled away from the door
• Sidewalks with lifted or sunken panels
• Garage floors pitted by salt or cracked by settling

We will tell you which items are worth fixing now and which can wait. If several slabs need work, doing them together saves on setup.

Patios and outdoor space

A plain patio or a stamped one both work in Sloan. On low ground we keep the patio slightly higher than the surrounding lawn and slope it away from the house, so rain and melt run off into the yard.

How deep should the base be?

There is no single answer on floodplain ground. We probe the soil during the estimate to see how firm it is and how close moisture sits to the surface. Firm, dry ground may need only a standard gravel layer. Soft or wet spots may need more excavation and more gravel, sometimes with a fabric underneath to keep the gravel from mixing into the soil. We list the base depth on your quote so you can compare it with other bids.

Downspouts and sump lines

Many slab problems in low towns start at a downspout or a sump pump outlet that drains right next to the concrete. Every time it runs, water soaks the base. Moving that water a few feet out into the yard costs little and protects the new slab for years. We point these out on every visit.

Scheduling your estimate

We check whether the city needs a permit and arrange utility locates before digging. Call (712) 482-2303 to set up a visit.