Site Development and Utilities in Amarillo

Playa lakes decide where the water goes. Amarillo sits on a flat plain with shallow basins that fill in a hard rain and drain slowly, if at all. In June 2023 the city was pumping six playa lakes at maximum pump capacity, sending water to creeks, the Canadian River and then Lake Meredith, and the emergency management director said the playa lakes and drainage were at capacity. A site plan that ignores that is a site plan that floods.

We do the work that comes before and around the building: clearing, grading, drainage, detention, water and sewer service, storm lines, electrical and gas trenching, paving, curbs and truck courts. Developers hire us to turn raw ground into pad-ready lots. Owners hire us to prepare the ground for a building that has already been designed.

The work is mostly invisible when it is done well, and very visible when it is not. We explain what each part costs, what the soil and the weather could do to it, and who has to approve it.

The soil conditions on the Panhandle shape every site package. The USDA's Randall series describes soils on playa floors 10 to 50 feet below the surrounding plain, poorly drained and very slowly permeable, with shrink cracks of 1 to 5 centimeters wide when dry, and says they are frequently ponded for very long periods in most years. The Pullman soils on the surrounding plain are about 35 to 50 percent clay with slow permeability. Elsewhere on the Southern High Plains the Kimberson series has hard caliche only 4 to 20 inches down.

A site can contain two or three of these. Clay wants moisture control, playa soils want drainage and removal, and caliche wants heavy equipment or blasting. We recommend a geotechnical investigation early, and we write the findings into earthwork quantities, pavement sections and the building pad design.

City utility projects tell you where development is going. The Amarillo City Council approved nearly $3 million for about 14,000 feet of 12-inch water pipe near North Western Street and West Hastings Avenue to support growth of over 1,000 new homes and multiple businesses, funded with bond proceeds. A developer who can tie into that line saves time and money. A developer who cannot must pay to extend services.

Streets matter too. The council approved more than $30 million in certificates of obligation for street construction and maintenance in 2026, including $16 million for Osage Street between 34th and 58th Street, projected to take two years. Construction zones change access and schedule for neighboring sites. Industrial users looking at the south Amarillo business park near I-27 and Loop 335 should add that road work to their access study. We check city and state projects at the start so you know what will be torn up next to your lot.

Our site packages include clearing and demolition of old pavement, mass earthwork and fine grading, subgrade stabilization, storm sewers, inlets, culverts, detention and retention basins, water and sanitary lines with tie-ins, and fire lines. We also place curbs, parking, drives, and heavy-duty concrete in truck courts and dock aprons.

The work often connects to other services on this site. For example, warehouse construction needs a flat, drained pad and a deep truck court, and a distribution center multiplies that by the number of docks. Flex buildings need small-lot drainage and utility stubs. Large industrial and energy projects need the heavy haul roads and laydown areas we describe under data center construction.

Land rules differ by location. Inside Amarillo, utilities and streets follow city standards and permits go through the city. Randall County states that the city has exclusive authority to approve or deny plats for streets, alleys and drainage in its extraterritorial jurisdiction. Potter County's revised subdivision regulations, adopted December 11, 2023, require a comprehensive drainage plan identifying any 100-year flood plain, city approval first for plats in the extraterritorial jurisdiction and sewage plans sent to the Amarillo Bi-City-County Health District and the Texas Commission on Environmental Quality.

Randall County's 2023 regulations require drainage easements to the limit of the 100-year floodplain and state that the county will not maintain retention and detention facilities. A perpetual entity such as a homeowners association must. Randall County also requires a Floodplain Development Permit before construction can begin, with Class A and Class B permits depending on the mapped floodplain. We handle the plans and filings, and we tell owners what will fall on them after construction ends.

Site work is where close trade management pays. We schedule the earthwork, utility and paving trade partners together wherever practical so that the sequence stays under our control. Trench safety, compaction testing and pipe bedding are checked by our superintendent and verified by the owner's testing agency.

Distance matters on the plains. We plan equipment moves, fuel and water supply, and aggregate sources with attention to haul cost. When wind and dust threaten adjacent property, we run water trucks, stabilize stockpiles and limit open ground. For related drainage, see how preconstruction estimating treats site risks, and how the commercial real estate developers we serve plan their parcels.

Trenching and excavation are among the most dangerous construction activities. We use trench boxes or sloping on every deep trench, call utility locates before digging, and keep competent persons on site. Work zone traffic control protects crews and drivers on public roads.

Weather adds its own checks. After heavy rain, trenches and basins fill, and playa areas can stay wet for weeks. We watch the forecast and move equipment to higher ground before storms. Hail, wind and dust each trigger stop-work and cleanup steps. A safe site is also a dry, controlled site, and we budget.

Send the address or the legal description. We will return a site plan outline, a list of approvals and a price range.

Do I need a drainage study before I buy land?

Yes. A drainage study tells you where water flows, whether detention is needed and how much land it uses. It can change the value of the parcel. We can coordinate with an engineer before closing.

Who maintains a detention pond after construction?

In Randall County outside the cities of Amarillo and Canyon, the county says it will not maintain retention and detention facilities, so a perpetual entity such as a homeowners association must. Inside the city, the rules differ, so confirm with the city.

Can I build in a floodplain?

Sometimes, with the right permit and design. Randall County requires a Floodplain Development Permit before construction, and residential development in an identified floodway is prohibited. We review the mapped floodplain before you commit to a site.

What if a utility line is not near my lot?

Extending a line adds cost and time, and may require easements and approvals. We price the extension and show the effect on the schedule.

How does caliche affect cost?

Hard caliche slows excavation and may need larger equipment or rock-breaking. We carry an allowance until test pits or borings confirm the depth.