Headquartered in the beautiful foothills of the Sierra Nevada Mountain Range, Sierra Mountain Construction, Inc. is one of California’s premier heavy civil contractors. As a signatory to the Operating Engineers Local Union No. 3, the Northern California Laborers Local No. 1130 and the Carpenters Union, SMCI’s extensive experience includes, but is not limited to: underground utilities, water treatment, bridge construction, hydro facilities including work on dams, tunnel repairs, structural concrete, mass excavation, as well as emergency response. Our diverse portfolio encompasses an array of projects- such as those requiring specialty construction methods that are often in remote locations with difficult access-resulting in continual growth of our expansive knowledge and expertise in the industry. Client satisfaction is our number one goal and SMCI is dedicated to building lifelong relationships by striving to ensure all projects are completed within scheduled timeframes and on budget, delivering the highest quality of work while adhering to the utmost workplace safety. Sierra Mountain Construction, Inc. prides itself on an excellent safety rating, having won the 2014 United Contractors 250,000 Man Hour Award. SMCI has created a culture based on core values and with the readiness to tackle the most challenging projects head on.

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Sierra Mountain Construction, Inc.
13919 Mono Way
Sonora, CA 95370

(209) 928-1900