Concrete Repair in Woodbury, Minnesota.

Under Minn. Stat. 429.101 a Minnesota city can charge sidewalk repair against the property it benefits as a special assessment, payable in a single installment or in up to ten equal annual ones. Woodbury takes a right-of-way permit from its Engineering Division for work in city right of way, and installing or repairing a commercial driveway apron is on that list by name. Commercial sites here put their driveway aprons in concrete to the city's own details, and Woodbury republishes its detail plates and standard project manual every year. That lands on the entrance walks at Tamarack Village and the Woodbury Lakes and CityPlace centers off Radio Drive, on the hospital campus on Woodwinds Drive, and on the approaches into the northeast industrial side.

Four things take concrete apart here, and each one goes after a different part of a property. A sidewalk panel sits on saturated ground or over a root. The water under it freezes, expands and lifts the panel. In spring the ground thaws and settles, and the panel does not go all the way back down with it, so what was flush in October is a lip in April. Then a plow blade catches that lip every storm for five months and breaks the leading edge off it. A curb takes the plow head on. The blade rides up the gutter, catches the curb face and takes the nose off in chunks. Salted slush sits in the gutter longer than anywhere else on the lot, because the gutter is where everything on the lot drains to, so the gutter is where the surface scales first. De-icer does the same thing to flat concrete. Chloride pulls water into the surface and runs more freeze and thaw cycles through it in a season than the weather would on its own. The mortar skin comes off in flakes and the aggregate stands proud. The approach at the street is a joint between two slabs that belong to different people. The street sits on a road section and a deep base; the drive sits on whatever was there. Frost gets under the shallower one first, the apron cracks along the gutter line, and that crack takes water into the base under both of them.