DENVER, CO For the second consecutive year, CH2M earned the top spot on Trenchless Technology's Top 50 Trenchless Engineering Design Firms list. The firm has topped the list in six of the last seven years.

Trenchless Technology's list is developed by comparing firms based on their trenchless billings in the North American market, as well as numbers of trenchless professionals, completed trenchless projects and a breakdown of what trenchless components made up the projects reported. CH2M reported more than $164 million in trenchless projects over the last fiscal year reflecting over 234 trenchless project components such as auger boring, horizontal directional drilling, microtunneling, pipe bursting, pipeline rehabilitation, utility tunneling and evaluation studies.

"CH2M's client-centric approach allows our internal practice groups with extensive knowledge in Trenchless Technology to add value to our clients' specific projects, concerns and desired outcomes. The result - a successful project for our client," said Susan Moisio, CH2M Conveyance Practice Manager.

An industry leader in developing and deploying trenchless and tunneling technologies, CH2M applies innovative and cost-effective approaches for buried infrastructure assessment, rehabilitation, replacement and new installations for water, wastewater, and energy conveyance projects. North American examples include the El Paso Water Magnolia Storm Drainage Improvement project which was designed to help improve drainage and reduce flooding on Interstate 10, the raw water pipelines for the Davis-Woodland Regional Water Supply Design-Build Project which recently received a National Award of Merit by the Design-Build Institute of America, and the structural rehabilitation of the Taggart Outfall 30 brick sewer in Portland, Oregon.

"Trenchless technologies continue to improve and provide excellent options for clients who are looking to repair or replace aging underground infrastructure or install new buried infrastructure," said Mark Johnson, CH2M's Tunnel Practice Manager. "It is an honor to have our work and expertise recognized by Trenchless Technology again this year."

With more than 40 years of tunnel and trenchless project planning, management, design and construction management experience, CH2M trenchless experts have worked on complex projects around the world to manage and extend the useful service life of existing infrastructure, as well as install new drinking water, wastewater, and energy conveyance systems without disrupting the surrounding communities.