Elevated Concrete Slabs and Decks in Casper, Wyoming

A slab that hangs in the air weighs the same as one on the ground, and every pound of it rides on shoring, forms and a pump line until the concrete gains strength. A four-inch topping on a metal deck over a 10,000 square foot floor is roughly 125 cubic yards, and it has to arrive, lift and finish before the batch stiffens. That is why we plan elevated pours backward from the pump, not forward from the drawings.

We place structural slabs, composite metal deck toppings, stair and landing pours and parking deck levels around Casper and Natrona County. Most of the work is supported on steel or on cast-in-place columns, and the slab thickness, the shoring plan and the strength you need before stripping all come from the engineer of record. Our job is to build exactly that and prove it.

Elevated work is less forgiving than flatwork. A missed shore, a rebar mat that sits on the deck instead of in the slab, or a pour that gets rained on in the middle of the placement can mean coring and repairs two floors up. We keep the sequence short, the crew small enough to coordinate and the safety rules posted at the access point.

What goes into a deck pour

The pour starts weeks before the truck. We check the metal deck for fastening and edge forms, set the reinforcing on chairs at the specified cover, and confirm embeds, sleeves and slab openings against the trade drawings. Post-pour coring through a slab you just finished costs more than moving a sleeve while the forms are still open.

Placement follows a planned pattern with the pump positioned for the full reach. We strike off to screed rails or laser screed height, finish to the flatness your floor covering needs, and cure with wet cover or curing compound as the specification calls for. Shores stay in until cylinder breaks say they can come out, and we do not strip on a hunch.

Pump access is part of the scope, not an afterthought. A boom pump needs a firm, level pad and clearance from overhead lines, and a line pump needs a route that does not cross open floors. We walk the route with the driver during planning and tie it to our pumping and placement plan, then confirm the testing and quality control schedule so slump, air and cylinders are taken from the trucks that actually pour the deck.

Working over open edges

Elevated concrete means people working near edges with hoses, vibrators and screeds in their hands. Edge protection goes up before the first bar is set, openings are covered and marked, and the pump hose gets a clear path that is not shared with foot traffic. Nobody stands under a deck while it is being placed.

Shoring is inspected before the pour and during it. We keep reshoring and stripping dates written down and tied to strength results, so a foreman can answer the question "can we pull this yet" with a number. Heavy wind on an open deck can bring a pour to a stop, and we will stop it. Gusts can swing the pump boom and throw a crew off balance.

What the permit office wants to see

Casper commercial permits often call for a life-safety plan, engineered building and site drawings and Planning and Zoning approval. Casper plan review covers structural calculations and engineering reports, and an issued permit is good for 180 days, so the foundation, steel and deck schedule has to fit inside that window or be extended.

The city also lists the 2024 International Codes, with Title 15 of the municipal code carrying local amendments. We read the structural general notes for the required concrete strength, the stripping criteria and any special inspection hold points, and we schedule the special inspector and testing lab before the pour date is firm. Missing a hold point turns a Tuesday pour into a following Monday.

Embedded conduit and plumbing sleeves in an elevated slab have size and spacing limits set by the engineer. We do not field-cut a beam or core a slab for a late pipe without written approval. If a trade shows up with a change, we ask for the revised drawing first and move the pour only if the revision is real.

Pour windows and plant capacity

Wyoming Medical Center in Casper added a four-story, 46-room tower with about 750 tons of structural steel and sky bridges to an occupied hospital, which shows what elevated work next to live operations looks like: tight laydown, noise limits and haul times that cannot cross patient entrances. The same logic applies to every occupied site we pour beside.

We confirm the batch plant's load rate against the slab area, lock in a pump and a backup, and set the start time so finishing ends before dark. Winter placements get heated enclosures and blankets before the pour, not after. A quiet morning in Casper can turn windy by noon, and a deck is more exposed than a slab at ground level. See our notes on cold-weather concrete for how we protect elevated work in the freezing months.

Where elevated slabs show up

Medical buildings, offices, parking structures and multi-level storage need elevated floors, and the owners behind them tend to be hospitals, school districts, developers and public works departments. We work for schools and healthcare owners who need pours around occupied space, and for general contractors who need a concrete sub that keeps its own schedule.

A parking structure has long spans, drainage slopes and joints that have to survive de-icing salt. A hospital has vibration limits, embeds for equipment and tough access. Both want the same discipline: a pour plan, a testing plan and a stripping plan, all written down before the first load of concrete leaves the plant.

Send us the structural set

Elevated work needs a conversation before the bid. Send the drawings, the target start and the access plan, and we will return a sequence, a pour count and the questions that need answers first.

Questions Owners Ask

How long before the shores can come out?

It depends on the engineer's criteria, which are usually a strength percentage verified by field-cured cylinders, plus time. We do not strip on a calendar date alone. Cold weather slows strength gain, so winter decks stay shored longer than summer ones, and we build that into the schedule.

Can you pump a deck pour in the winter here?

Yes, with preparation. We heat the deck from below or enclose it, warm the subgrade surfaces the concrete touches, order a mix with the right air content and temperature, and blanket right after finishing. If the forecast shows a hard drop in the first day, we move the pour.

Who sets the slab thickness and reinforcing?

The structural engineer of record does. We read the drawings, flag clashes with sleeves or embeds, and build to them. If a field condition forces a change, we send a request for information and wait for the answer before pouring.

What happens if a truck sits too long at the pump?

Concrete that has stiffened beyond its allowed time is rejected, not retempered with water. That is why we coordinate plant output with the pump rate. For a larger deck we stage trucks at the batch plant, not at the site, so the site never has a line of trucks burning time.

Do you coordinate with the steel erector and deck installer?

Yes. We need the deck fastened, edge forms set and any stud welding done before we place steel. We walk the deck with the erector and the special inspector before the pour so each trade signs off on its own work.

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