Power, fiber and cold air decide where a data hall goes. Casper has a cold-climate site story and a power story, and a fiber story that is still being written. We build the shell, the yard and the buried utilities that connect those three, and we say plainly where the metro is thin.
The fiber side is real but young. The Wyoming Business Council approved $617,483 in grant funding for about 30,000 linear feet of fiber optic cable in and around the airport business park. The Town of Mills has signed franchise agreements with several telecom providers to build and operate fiber networks. Operators weighing a small edge site or a hardened colocation hall should talk to the carriers early, and we will plan conduit paths with them.
Our job is the physical work. Slab, structure, roof, generator yard, fuel and fire water, duct bank and security fence. We run it under a permit to work from the first day, because a data hall site holds live electrical gear before the owner ever energizes it. Everyone on our team sits through your safety orientation, and we expect your commissioning agent on site early.
Power, climate and the site
Power is the first question. Two generating sites give a sense of the regional grid: the Dave Johnston Power Plant, a large coal-fired station at Glenrock, and the Alcova powerplant on the North Platte, with two 18 MW Francis turbines and 36 MW installed. Neither tells you what is available at your parcel. Your utility interconnect study does. We build the substation pad, the transformer yard and the switchgear room to match whatever that study allows.
Cold air is the second. The City of Casper lists climate zone 6B and a 3,000 air freezing index. Long cold seasons cut the hours a facility needs mechanical cooling, and they also freeze ground to three feet. Frost heave under a lightly loaded slab, a generator pad or a fuel tank is a real risk. We design footings and pads for that depth and keep drainage away from them.
What goes into a data hall site package
Mass grading and a stable pad first. Then electrical duct banks in concrete encasement, set and surveyed before backfill, because nobody wants to chase a conduit after the slab is down. A site utilities package for water, sewer and fire water. Then the structure, usually steel or tilt-up, with a raised roof loading plan for rooftop chillers and a floor that carries rack weight.
For larger programs we handle the whole build through our data center construction practice. For support buildings, such as an operations office, a warehouse for spares or a generator enclosure, we plan the work as a separate package so it does not hold up the main hall. Fencing, access control and a hardened truck entrance go in at the start, not at the end.
Which buildings we can deliver
The classic data center is a concrete or insulated-panel box with a utility yard. Smaller operators ask for a modular pad and a fenced yard instead. Both are within our work. We also build the operations building, the warehouse and the maintenance bay that surround a campus, and we match their finishes to the main hall so the site looks like one project.
Casper sits at 5,150 feet, and high elevation matters. Air is thinner, so generator output, cooling equipment and fan selection need derating. Your engineer owns that calculation. We make sure the pads, ducts and clearances they draw fit the equipment that ships, and we flag any substitution before it reaches the field.
Codes and review for a hall in Natrona County
The state adopted the 2024 International Codes on June 28, 2024, and its rules incorporate the 2024 Building, Fire, Existing Building, Mechanical and Fuel Gas editions. The fire marshal page names the 2026 National Electrical Code for electrical work, while other Wyoming sources still cite the 2023 edition, so the electrical edition must be confirmed with the state department. That matters on a data hall, where electrical scope is the largest line.
The City of Casper lists the same 2024 family and keeps its amendments in Title 15. Commercial permits often call for a life-safety plan, engineered drawings and zoning approval, and an issued permit runs 180 days. Outside the city, a county or a town may hold the authority. We confirm who that is before design starts, and our commissioning and closeout process keeps inspection records organized for the fire marshal.
Schedule, long-lead gear and shutdown windows
Switchgear, generators and transformers set the schedule, not concrete. Orders go in long before permit issuance, and we hold the structure and the yard to the delivery date. If a transformer arrives late, we can pause erection and keep trades moving on the interior. If it arrives early, we need a laydown area with matting and a rigging plan before it is unloaded.
When your hall ties into an existing plant or a municipal feed, the cut-over is a planned shutdown with a written switching procedure. We stay out of the way of your electricians. Many owners compare data hall sites with other power-hungry segments, such as utilities and power and cold storage. They share the same long-lead gear and the same frost and snow design issues, and we plan accordingly.
Bring us the interconnect study
Send the utility study, the equipment list and the parcel. We will lay out the duct bank, the pads and the schedule around your long-lead gear, with safety orientation for every crew before anyone touches a live panel.
Common Questions
Is Casper realistic for a data center?
It depends on your power and fiber requirements. Cold climate, land in the airport business park and a fiber build under way are points in its favor. Utility capacity at a given parcel is the deciding fact, and it has to come from the serving utility in writing. We can help you frame the right questions before you buy land.
Who handles the utility interconnect?
The owner and the serving utility, with the owner's electrical engineer. We build what they design: the substation pad, the duct bank, the transformer yard and the fence. We schedule excavation around their outage windows and keep a safety watch at any energized crossing.
How do you protect the work from frost and snow?
Footings go below the three foot frost depth the city lists, and we protect fresh concrete in cold weather with blankets and heated enclosures. Snow load comes from the design table and the hazard tool rather than a fixed value, so roof framing is sized to the project. Exposed pads get drainage that moves meltwater away from the foundation.
What goes wrong most often on a first data hall?
Late equipment, and a design that assumes sea-level performance. High elevation derates generators and cooling gear, and a substitution approved late can ripple through pads and duct banks. We ask for the final equipment list early and check clearances and loads against it before pouring.
Can you build in phases as capacity is leased?
Yes. We build the shell and the utility spine in the first phase and leave the next hall pad stubbed with conduit and a stabilized surface. That lets a second phase proceed without disturbing live equipment, under a separate permit to work and a barricaded haul route.