Exchange Schedule

The Exchange features nearly 40 hours of education and over hundreds of exhibitors in the Expo Hall. To search for specific events or session types, please utilize the advanced search option by clicking on the Advanced Search tab with a search-glass image below. Build a personal conference schedule by utilizing the My Sessions tab located to the right of the Advanced Search tab. To view a full summary of scheduled events, utilize the dropdown box that reads summary view and select full view. Also available in the upper right hand corner of the schedule is the ability to export and print information. To view daily schedules, select the conference dates highlighted below in red text.

Subsurface Constructors Inc

Lyle Simonton, PE
101 Angelica St.
St. Louis,  MO  63147

United States
Phone: 314-421-2460-101
Fax: 314-421-2479
  • Booth: 2452

Come visit us at Booth 2278


Subsurface Constructors is a 110-yr old deep foundation and ground improvement contractor located in St. Louis, MO. We design/build aggregate pier ground improvement solutions for support of all types of structures in soft soils. We have completed the foundation stabilization work for dozens of grain bins, handling facilities, fertilizer storage buildings, and other structures in the agricultural industry. We have completed over 700 ground improvment projects in approximately 36 states. Please call or email Lyle Simonton (314-421-2460x101; to discuss a project.

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