DENVER — CH2M HILL was ranked as number one on Trenchless Technology magazine's 2013 list of the Top 50 Trenchless Engineering Design Firms for the fourth consecutive year, according to a press release.

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The list was based on 2012 revenue and results from an annual survey measuring overall billings, trenchless billings, numbers of trenchless professionals and total number of completed projects, noted the release.

“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 Rick Nelson, CH2M HILL Water market conveyance service team leader. “Our experts have worked on complex projects around the world to manage and extend the useful service life of existing infrastructure, as well as build new drinking water and wastewater systems without disrupting the surrounding communities. It is an honor to have our work and expertise recognized by Trenchless Technology again this year.”

CH2M HILL was also recently recognized by the International Tunnelling and Underground Space Association, which named it the Global Tunnelling Design Firm of the Year at the NCE International Tunnelling Awards in London, the release reported.

“CH2M HILL recently aligned its tunneling, trenchless and geotechnical experts within a dedicated global practice to capitalize on our collective experience serving both traditional clients, as well as design-build contractors and funding agencies,” said Andrew Finney, CH2M HILL’s western team lead for tunneling within North America. “Our unparalleled technical resources allow us to solve the most difficult infrastructure challenges faced by our clients."