2399 Riverside Parkway
Grand Junction, CO 81505


Deep Foundation Systems

Foundation Underpinnings

Foundation underpinning is a process of modifying the foundation system of a structure that is unable to carry existing loads or additional loads within the existing soil conditions. Methods of underpinning include the construction of new or larger footings, driven piles, drilled piers, and hydraulic driven piers. Piering systems are typically drilled or driven deep into the soil and supported into load-bearing strata.


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"We found the employees
of Mays Construction to
be very friendly,
knowledgeable, easy to work with, professional ,
helpful, hard-working
and just basically
everything you would
look for from a
construction company."

Matt Grenfell,
Director; Western
Rio Blanco Recreation
and Park District


Mays Construction Specialties, Inc. utilizes many different techniques and systems such as micro piles, resistance piers, helical piers, compaction grouting and conventional underpinning with concrete footings to raise and provide stabilization of many different types of structures.

From underpinning multi-story buildings and bridges to small commercial buildings and residential structures, MCSI has the experience and proven record to handle a wide range of foundation mitigation and underpinning.

Mays Construction Specialties Inc., is a proud dealer/installer of Atlas Systems Inc., foundation support products. (www.atlassys.com)

Atlas Pier Systems can be installed in either an interior or exterior location. Every Atlas Pier System provides for a two-stage system of initially driving the manufactured piers to load bearing support, then using hydraulics, restoring the structure to the desired elevation. Atlas Piers not only stop settlement, but also raise the structures, closing cracks and correcting other structural flaws caused by the settlement and/or ground movement.

Atlas Resistance Pier Systems actually restore the foundation and the structure in most cases to their original or desired position. They are ideal for hard access and low overhead areas where foundation underpinning is needed.

The Atlas Pier is an assembly of structural steel components that include a pier head assembly attached to the foundation or column, which is then mounted on a steel pier that is installed to bedrock or load bearing stratum.

The unique Friction Reduction Collar on the lead section of the pier reduces skin friction on the Pier Pipe during installation.

The Atlas Pier does not rely on skin friction for support! The Atlas Pier has been successfully driven to depths of 200 feet to insure proper and verified support!

The Atlas Pier is a manufactured, two-stage product designed specifically to produce structural support.

First, the pier pipe is hydraulically driven to a load-bearing stratum, and then the lifting equipment is combined to a hydraulic pump and manifold system to lift the structure.

The Atlas Pier System procedure provides measured support strength. Piers are spaced at pre-determined centers where each pier is driven to a suitable stratum and then tested to a force greater than required to lift the structure.

This procedure effectively load tests each pier prior to lift and provides a measured Factor of Safety on each pier at lift.

Benefits / Advantages:

  • Capacities to 110 kips
  • Certified materials
  • Corrosion protected
  • Engineered system
  • Environmentally friendly
  • Fast installation
  • Least costly method
  • Load carried on top of pier
  • Measured design load (each pier)
  • Measured factors of safety
  • No angled support
  • No guesswork
  • No heavy equipment
  • No lateral movement of pier assembly
  • No vibration
  • Unified non-rust galvanized steel composition

Roy Moore Elementary School. Silt, CO

Installation of Helical piers for
construction of new water tank
foundation. Grand Junction, CO

Illustration of Atlas resistance
Pier. Image courtesy of
Atlas Systems, Inc.

1st American Title Company.
Grand Junction, CO


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