- How thick should a concrete driveway be in Wisconsin?
- Five to six inches where vehicles park or turn. Four inches is walkway and patio spec, and it is the most common place a cheap driveway bid quietly saves money. Six inches with #4 rebar on chairs is the answer for RV parking, boat trailers, or a drive that regularly takes a delivery or dumpster truck. Whatever the number is, it belongs on the estimate in writing.
- Do footings really have to go 48 inches down here?
- For footings and foundations, yes. SPS 321.16(1)(a) of Wisconsin's Uniform Dwelling Code requires them below the frost penetration level or at least 48 inches below adjacent grade, whichever is deeper, and that includes footings under landings and stoops. Flatwork such as a driveway or a patio is not footed to that depth, which is why slabs move seasonally and a properly footed porch does not.
- The city sent me an order to repair my sidewalk. What triggers that?
- Racine's inspection criteria are specific: more than 1 inch of elevation difference between adjacent squares, a crack wider than 3/4 inch, more than 1/2 inch of elevation difference within a square split by a longitudinal crack, or spalling that leaves surface irregularities deeper than 1/2 inch. The same document rules out crack filler, wedges and surface treatments as a permanent repair — mudjacking or a concrete patch needs prior approval from the Commissioner of Public Works. Work in the public right-of-way, including a driveway approach, also needs a permit from the Department of Public Works.
- When can concrete be poured in Racine?
- Roughly April through November for residential flatwork, and the exact window moves with the year. The constraint is not the calendar, it is the subgrade and the curing conditions: clay that has been holding water since March will not compact, and concrete placed in the wrong conditions cures badly. A contractor willing to move a date is protecting the slab, not stalling.
- How long before I can drive on a new slab?
- About seven days for passenger vehicles, and longer in cold weather. Foot traffic is usually fine after roughly 24 hours. Concrete keeps gaining strength for weeks after that, so a moving truck, a loaded dumpster or a delivery of landscape stone in the first month is worth asking about before it shows up.
- Should I seal a new driveway, and what about salt the first winter?
- Keep de-icing salt off a new slab through its first winter. The surface has not finished curing, and chlorides pull moisture into it — sand gives traction without the chemistry. Sealer is maintenance rather than a finish, and it has to be reapplied on a cycle, so ask which product is going on and how often it needs redoing before anyone applies it.