About Depatco

Eastern Idaho’s Supplier of Choice

Depatco was founded in St. Anthony, Idaho in 1978 by the Stoddard family, and now, it is one of the largest privately owned and operated construction companies in southern Idaho. With the recent acquisition of Depatco by Sunroc Corporation, Depatco will expand and continue to offer services in the Snake River region. We have decades of experience in construction, asphalt paving, concrete work, sand and gravel, and deep foundations. While servicing Eastern Idaho and Western Wyoming, we are committed to delivering the best materials, expert service, and unmatched satisfaction to our customers on every project. We take that promise seriously, and we will work tirelessly to see your job through.

Aggregate Products Catalog

View our Aggregate Products Catalog. Conveniently browse Sunroc's sand and gravel products from the region's best sources. Click the link below to browse our aggregates products by location, type, and more.

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We produce a variety of aggregate products from multiple gravel pit locations – we can even set up mobile crushing and screening equipment on the project site.

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You can trust Depatco’s commercial concrete services to be high quality and straightforward. We have the tools and expertise to conquer any concrete job.

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Foundation construction and earthwork


We are dedicated to offering a premier level of construction products and services. From mass grading to utility installation, we have the experience and professionalism to complete your project properly.

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Asphalt Paving crew installing new road


Depatco’s asphalt paving is the top-performing in the industry. Our asphalt mixes produce extremely smooth pavement that improves the performance of any finished surface and lowers the average annual cost for road maintenance throughout its life cycle.

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“Depatco has completed numerous pipe installation projects including water and sewer projects. We have never had problems with their scheduling, project management, construction work, required paperwork and other aspects of complicated construction projects. They are not change-order driven and have always maintained a workable and professional attitude during and after construction.”

John Millar / City of Rexburg Public Works Director

"Depatco has worked flawlessly with our firm to accomplish a multitude of various general contracting projects in southeast Idaho from Western States Cat to The Cheyenne Connector to Stewart Additions in Chubbuck. Promises made, promises met."

Lloyd Merrill, President / JK Merrill and Sons Inc

“Based on Depatco's past performance with the city, we appreciate the timely responses and professionalism they bring with them on every job. The city highly recommends them to any entity for their thoroughness and accommodations they make to the city and our residents.”

David Swager / Clerk/Treasurer City of Rigby