Jacobs Associates has announced the promotions of Isabelle Lamb, Gregg Davidson, Dan Dobbels, and Mark Havekost to the position of principal.

Isabelle Lamb, LG is the firm’s first female principal. Her career as a practicing engineering geologist spans more than 20 years and includes tunnel design and geotechnical consulting projects in the United States, Australia, and New Zealand. Isabelle is based out of Seattle and is currently serving as project manager for the North Link Light Rail project and Project Director for NTP JV in the ongoing design support of the University Link Light Rail project. She joined Jacobs Associates in 2003 and is a vice president of Jacobs Associates New Zealand Ltd.

Gregg Davidson, PE, CEng has worked in the firm’s Seattle office since 2003 and has 24 years of experience in design, program, and construction management of tunnel and underground projects around the world. These projects have covered transportation, water and wastewater conveyance, and hydropower schemes, using various types of excavation methods. Gregg is currently project manager for the Gorge 2nd Hydropower Tunnel project and works full time on the final design phase of the North Link Light Rail project. He serves as a vice president of Jacobs Associates Canada Corporation.

Dan Dobbels, PE has 28 years of technical and management experience in planning, design, and construction of a variety of geotechnical and underground engineering projects. His experience covers conceptual-level planning and feasibility studies, implementation and reporting of geotechnical investigation programs, detailed design studies and preparation of contract documents, construction phase services, trenchless technology, and claims analysis and evaluation. Dan is project manager for the Ottawa Light Rail Transit project and vice president of Jacobs Associates Canada Corporation. He joined our Boston office in 2009.

Mark Havekost, PE has 19 years of underground industry experience. Mark has extensive project management experience and expertise in design and geotechnical engineering in both rock and soil; pipeline evaluation and design; and conventional tunneling, microtunneling, and directional drilling. He joined Jacobs Associates in 2000 and opened the firm’s Portland office in 2007, where he has been involved in design and construction of several underground components of the City of Portland’s CSO Program. Mark is active in the development of the firm’s hydropower services and currently leads the engineering teams on several hydropower projects, including the Lower Baker Unit 4 Powerhouse, the Gorge 2nd Hydropower Tunnel, and the Boundary Dam Rockfall Mitigation Project.

Jacobs Associates is an engineering firm that provides solutions for difficult underground projects in the water, wastewater, and transportation sectors. With an emphasis on tunnels and shafts, they offer design and construction management capabilities. They also offer the broader heavy civil construction industry claims and dispute resolution services. Jacobs Associates has offices in San Francisco; Seattle; Boston; Pasadena; Portland; New York; Walnut Creek; San Diego; Vancouver, Canada; Auckland, New Zealand; and Melbourne, Australia. For more information, visit www.jacobssf.com.