Holdrege & Kull – Consulting Engineers and Geologists provides geotechnical engineering services in California, colorado, Washington, Oregon, Nevada, Utah, Arizona, and Hawaii. Our client base and spectrum of geotechnical projects range from foundation design for the individual property owner to investigation and design of large photovoltaic arrays for multinational energy consortiums. High profile projects, such as the new Folsom Dam Auxiliary Spillway and multi-award-winning Bloomer Hill Communication Tower in Butte County, have distinguished H&K as a big player with small-town roots. Our principals and project managers are in-the-field, hands-on, get-dirty professionals, some of whom also help write and grade the professional Geotechnical Engineer and Certified Engineering Geologist exams for the State of California. Our relationships with regulators at the state, county, and municipal levels expedite the review process, saving our clients time and money.