Cascade Trenchless Consulting

Delivering custom-fit trenchless solutions from concept through construction. Cascade Trenchless provides trenchless engineering consulting from feasibility assessments, new installation trenchless designs, implementing risk mitigation measures, constructability reviews, owner's construction support, to contractor's submittal support. We partner with clients throughout all stages of trenchless projects, specializing in identifying and mitigating risk while developing alternatives specifically suited to the needs of the owner and the project site with a careful attention to detail. We value collaboration and quality, and we support all sectors including water and wastewater conveyance. We specialize in new installation trenchless technologies including HDD, auger boring, pilot tube guided boring, pipe ramming, microtunneling, and open-shield tunneling. We're based in Portland, Oregon, serving the Pacific Northwest and across the nation. We're proudly woman-owned: COBID (Oregon) certified WBE/ESB #13589 and OMWBE (Washington) certified WBE #W2F0027919. Principal Engineer Diana Worthen is licensed in Oregon, Washington, Idaho, Montana, Texas, and California. Cascade is registered in Texas as TBPE #F-23849.