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L & M Underground, Inc. was founded in 2000 by Mike Slater who brings more than 20 years of utility construction experience to every job.
Slater is closely involved with each project, ensuring thorough planning, safety and quality performance. Our knowledgeable crew leaders have experience with directional boring in diverse environments including residential, congested roadways, railroad crossings and highways. We have a proven track record of completing large scale projects including directional bore installations as large as 14 miles. Contact us for a list of references.


Past projects include installation of the following:

• AT&T fiber optics and cable in Westminster, Broomfield, Arvada and Denver, Colorado
• Qwest Fiber to the Node and Fiber backbone projects - CO
• Verizon Fiber to the Home - CA
• Metro Media fiber optics in Denver, CO and Phoenix, AZ
• Adelphia cable TV and fiber optic loops in Denver and Colorado Springs, Colorado
• Gas, electric and water sleeves for the construction of the E470 toll way in Denver, Colorado
• Cell tower phone and power conduits for all of the wireless carriers in Colorado
• Comcast fiber optics and coax using rock saw, directional boring, trenching and
   plowing throughout Colorado
• Conduit and fiber for US Cable
• Water and Sewer mains and services throughout Colorado
• Williams Communication fiber optics in Seattle, WA
• CDOT Fiber and signal projects throughout Colorado
• Air lines, signal lines and various utility pipeline along and crossing railroads
• Electrical conduit and storm drains for various airport taxiway projects
• Electrical bores for solar energy panels
• Underground installations for geoexchange (geothermal) lines

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L & M Underground, Inc.

TEL: 303-933-1970
FAX: 303-200-7235