Concrete Contractors Serving West Des Moines, Iowa — Built for central Iowa frost and freeze-thaw

Why do West Des Moines slabs crack the way they do?

Most of the city sits on Des Moines Lobe glacial till, clay-heavy ground left by the last glacier. Building codes here set frost depth at 42 inches, and this ground lifts as it freezes and settles back as it thaws, so a slab on loose or uneven ground moves with it and cracks where it's weakest.

So most of the work happens before the concrete arrives. JLB compacts and grades the base so the slab bears evenly, adds rebar or mesh where the load needs it, and pours a 5–7% air-entrained mix, whose tiny air bubbles help the surface resist flaking through freeze and thaw. Control joints, cuts that tell the slab where to crack, keep the shrinkage cracks every slab gets in straight lines.

The age of the neighborhood matters too: the blocks around Valley Junction are the city's oldest, from the 1900s, the split-level neighborhoods followed in the 1970s, and the executive estates around Jordan Creek Town Center, the regional shopping center, went up in the 2000s on the hillier west side.

Who has to fix the sidewalk in front of a West Des Moines home, and by when?

The owner of the property next to a sidewalk keeps it in repair at their own expense, except for damage from a tree in the public right-of-way (the public strip along the street that holds the sidewalk), which the city fixes for free.

Under its sidewalk inspection and repair program, the city works through eight zones on an eight-year cycle, marks sections that need work with white paint, and acts on defects outside that year's zone too.

The city's notice comes by certified mail and gives 75 days to finish the work.

When does West Des Moines concrete work need a city permit?

The city's repair policy says owners fixing a sidewalk the city has marked don't need its Sidewalk & Driveway Approach Permit. Other sidewalk work, and work on a driveway approach (the stretch of driveway between the street and the sidewalk), goes through the city's right-of-way permit. The city's permit form lists a $50 fee for sidewalk and approach work and a $200 deposit, refunded after the city inspects the finished work; inspections need 24 hours' notice to its engineering department.