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Companies

COMBINED STRENGTH, UNPARALLELED RESOURCES

The SDI family of companies provides its clients with the very best technological innovations and solutions in the world of specialized construction. Built on the principles of hard work, integrity and honesty, SDI has developed a reputation for providing our clients with cost-effective solutions.


ASI Logo with SDI

ASI Construction LLC

  • ASI is a construction leader in the water resources industry, with their personnel having successfully completed more than one-hundred fifty dam and dam rehabilitation projects, including thirty-five new dams and one-hundred ten dam modification and remediation projects. ASI operates throughout the USA and internationally.

Online:

Markets:

  • Heavy/Civil
  • Power
  • Water Resource

Services:

  • Dam Construction & Remediation
  • Design / Build Contractor
  • Underground Construction
  • Spillway & Intake Development
  • Major Water Resource Projects
  • Inspection / Maintenance
  • Hydraulic Structures

Coastal Geotech

Costal Drilling East LLC
Geotechnical Division

  • CDE Geotech offers the industry’s widest range of geotechnical capabilities. Custom-built grout plants, grouting equipment for dam foundation grouting, and custom drilling platforms for anchor work, allows CDE Geotech to service the specialized needs of the geotechnical construction industry.

Resources:

Markets:

  • Civil
  • Mining

Services:

  • Geotechnical Construction
    • Anchors
    • Directional Drilling
    • Micropiles
    • Shoring
    • Grouting

Coastal Well Service

Costal Drilling East LLC
Well Service Division

  • CDE Well Service has developed the widest range of techniques and assembled the most experienced personnel to ensure our clients get the best we have to offer, in solutions, in safety and in service.
  • With more than 2,500 wells serviced, CDE Well Service is the region's service provier of choice for clients and state agencies.

Online:

Markets:

  • Civil
  • Mining
  • Oil & Gas

Services:

  • Well Service
  • New Hole Drilling
  • Site Preparation
  • Wireline Services
  • Water Hauling

Heeter Geotechnical Construction

Heeter Geotechnical Construction LLC

  • Heeter Geotechnical Construction, LLC is a Heavy Civil General Contractor specializing in Dam Rehabilitation, Dam Remediation, Water Resources, and other Heavy Civil Construction projects. HGC partners with the other members of the SDI family to offer exceptional service to its clients.

Online:

Markets:

  • Civil
  • Water Resource

Services:

  • Dam Construction, Dam Remediation, and Dam Rehabilitation
  • Complex Rehabilitation of Concrete and Earthen Dams
  • Major Earthmoving, Excavation Projects
  • Rock Excavation and Processing
  • Complex Cofferdam Construction
  • Marine Lock Structures / Waterways/ Spillways

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North American Drillers LLC

  • North American Drillers is an international leader in mechanically excavated shafts. North American Drillers offers an unprecedented combination of shaft development services that provides its clients with turnkey construction solutions in both rural and urban conditions.

Online:

Markets:

  • Civil
  • Mining
  • Oil & Gas

Services:

  • Blind Bore Shaft Development
    • Large Diameter
    • Small Diameter
  • Raise Bore Shaft Development

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TEK Piles LLC

  • TEKP a Certified Helical Pile Oil and Gas Service Installer who is dedicated to promoting “Energy Independence” through alternative energy projects and energy efficient construction technologies.

Online:

 

Markets:

  • Civil
  • Oil & Gas

Services:

  • Helical Piles