The auger goes down, and what comes up tells the story of the site. Clay, cobble, cemented layers, water, or clean gravel each change how the shaft is drilled, how it is cleaned, and how it is poured. A drilled pier foundation is a hole bored into the ground, lined with a steel reinforcing cage and filled with concrete. It is a simple idea that rewards close attention in the field, because everything that matters is happening below where anyone can see.
For industrial work in northern New Mexico, drilled piers are a practical choice. They suit pre-engineered metal buildings with heavy column loads, hangars with large door openings, poles and sign structures for utilities and power sites, tanks, and equipment that needs deep support or resistance to uplift and overturning. They can be installed with compact rigs, in tight sites, and with less vibration than driven piles, which matters near an occupied plant.
We drill, reinforce and pour piers for owners who want a foundation that is documented, inspected and finished without drama. Project crews log each shaft, clean the bottom, place the cage and pour concrete the same day when conditions allow, so open holes are never left standing overnight.
Drilling, cleaning, placing and pouring
Each pier follows the same discipline. We survey the location, set the rig over the mark and drill to the depth called out by the engineer, verifying diameter and plumbness. The bottom is cleaned and inspected before the cage goes in, since loose soil at the base weakens the end bearing. If water enters the hole, we select the right method, whether casing, slurry or tremie placement, to keep the shaft clean and the concrete intact.
The reinforcing cage is built to the drawings and set with spacers so it stays centered, with anchor bolts or embedded plates tied on templates at the top. We pour through a tremie or a chute depending on the conditions and strike off at the specified elevation. Cylinders are cast for testing, and the shaft is protected until the concrete has gained strength. We log depth, volume, concrete delivered and any departures from the plan.
Coordinating drilling and finishing
Drilling is a specialty, and we coordinate the key steps closely. We set out the piers, run the drilling operations, place the cages and finish the pier tops and grade beams. Coordinating layout through the pour under one supervisor reduces the chance of a pier ending up an inch off line or a bolt pattern rotating on its template.
We also coordinate the work that ties piers into the structure: grade beams, pier caps, pedestals and slab connections. These details determine whether the building's columns land where the steel fabricator expects. We coordinate with the fabricator for column spacing, base plate sizes and bolt projection before the first hole is drilled, so the steel goes up without field modification.
Places where piers earn their keep
Airport work is a natural fit. In April 2025 a City of Santa Fe memo proposed leasing 1.57 acres of undeveloped land at the Santa Fe Regional Airport for an aircraft storage hangar, with a 40-year initial term. A hangar has wide door spans, light roof loads and big wind and uplift forces, which suits drilled piers with grade beams. Sites near the airport business park often combine hangar, shop and apron work on one parcel, and a pier foundation can serve all three.
Elsewhere in the metro, history sits beneath the surface. The Galisteo Basin holds abandoned Tanoan villages including Galisteo Pueblo, and Lamy Junction is an archaeological site of fourteen pueblos and other structures dating from AD 1200 to 1325. Projects near Galisteo and Lamy may require cultural resource review, and drilling is more selective than trenching because it disturbs small, discrete areas. We discuss that tradeoff with owners and regulators early.
Open holes and heavy rigs
A drilled shaft is a hazard until it is filled. We keep holes covered or barricaded, never leave one open overnight without engineered covers, and set up exclusion zones around the rig. Spoil is placed away from the opening and hauled or spread as planned. Utility locates are verified before a bit enters the ground, including private lines that do not appear on public records.
The rig itself needs firm, level ground. In wet weather we place mats or crushed stone to carry it and avoid rutting adjacent pavement. We hold a short safety briefing every morning that covers the day's piers, the hazards around them and the signals between the operator and the ground crew. Safety observations are logged and any near-miss is reviewed the same day.
What shapes the price of a pier
Pier cost is driven by diameter, depth, quantity and the conditions encountered. Rock, cobbles and water add time and special methods. Mobilization is significant for small jobs, so grouping pier work with other foundation scope helps. A hangar or pre-engineered metal building may have a few dozen piers, while a light-pole program may have many shallow ones across a site.
We help owners reduce cost through design coordination. Slightly adjusting column spacing can reduce the number of piers, and standardizing diameters speeds drilling. When a geotechnical report shows variable conditions, we price a base depth with unit rates for extra depth, so the final price follows the ground rather than a guess. For related deeper systems and alternatives, see deep foundations and piers.
Tell us about the loads
Send us the foundation plan and the geotechnical report. We will tell you how we would drill it, what the schedule looks like and how we will document the work.
Common Questions
How deep do drilled piers usually go?
Depth depends on the soil, the loads and frost. Shallow piers for poles and small structures may be six to ten feet, while heavy industrial piers may go much deeper to reach a bearing layer. The engineer sets the depth in the foundation design, and we verify it as we drill.
What do we do if we hit water or rock?
We stop and call the engineer. Water may require casing or tremie placement to keep the concrete clean, and rock may need a core barrel or rock auger. Unit pricing for these conditions should be set in the contract so the extra work is clear before it happens.
Can piers be installed next to an occupied building?
Yes, using compact rigs and proper protection. Drilling creates less vibration than driving, but we still survey nearby structures and monitor where required. Access, spoil handling and dust control are planned in advance so operations next door continue.
How soon can steel be erected on new piers?
Typically after the concrete reaches the strength required by the engineer, which is often a week or two. Cylinder breaks confirm it. Once the anchor bolts are surveyed and approved, erection can begin, and we coordinate with the steel crew to keep the gap short.
Are drilled piers a good choice for light poles and signs?
They are the standard choice. A drilled shaft with an anchor bolt cage resists overturning from wind well and uses little ground. We coordinate pole base details with yard lighting contractors so conduits and bolt patterns match the poles on order.