Concrete Driveways in Sioux City, IA

A concrete driveway in Sioux City is usually a replacement, not a first pour. With a median home built in 1957 and about a third of houses dating to 1939 or earlier, many driveways in town are old, patched, sunk at the garage or cracked across the apron. We tear out the old slab, rebuild the base and pour a new driveway made for loess soil, steep lots and winter salt.

When a driveway is past fixing

• Cracks you can fit a quarter inch into, or cracks that get longer every spring
• Panels that have sunk or tilted, leaving a lip to trip on or a spot where water sits
• Large patches of flaking, pitted surface (scaling)
• Runoff heading toward the garage door or the house
• A broken apron at the curb or where the drive crosses the public walk

A single bad panel can sometimes be cut out and replaced by itself. Once most of the drive shows these signs, a full replacement is usually cheaper in the long run than patching it year after year.

Why the base matters so much here

Loess, the silt that makes up the Loess Hills, is very hard when dry and loses its strength when wet. If runoff gets under a driveway, it softens that soil or washes it away, and the slab settles. We excavate, remove soft spots, compact the subgrade and place a compacted gravel base before any forms go up. On sloped lots we grade the driveway so water drains off the sides or down to the street instead of under the slab or toward the house.

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How thick, and what goes inside

HomeGuide's driveway guide calls for a 4-inch minimum on a normal residential drive, 5 to 6 inches where heavy vehicles such as RVs park, and edges thickened to 6 to 8 inches. What you park decides the number we use. Steel (rebar or wire) goes in where the load or the soil needs it, and joints are cut on a regular grid so drying cracks land in the joint lines.

The apron and the city

The part of the driveway between the street and your property line sits in the public right-of-way. In Sioux City, the Engineering Division issues sidewalk and driveway installation and replacement permits, and where the driveway crosses the public sidewalk, that walk has to meet city standards. We check permit needs before scheduling, so the apron and walk are done right the first time.

The first months

People can walk on it after a day or two; cars should wait about a week. Use sand, not salt, the first winter, which is what the city's Engineering Division recommends based on Iowa Concrete Paving Association guidance. Put on a sealer once it has cured; HomeGuide's guide suggests a fresh coat every 2 to 3 years and gives a well-built driveway a life of up to about 30 years.