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AEG Oregon Chapter - January Meeting (joint with ASCE)
Old Market Pub
Portland, OR
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Event

AEG Oregon Chapter - January Meeting (joint with ASCE)
Abstract:

Over 30 debris flows deposited on the Historic Columbia River Highway (HCRH) during a two month period in the winter of 2020-2021. Debris flows reached the adjacent Union Pacific Railroad and encroached on the shoulder of Interstate I-84. Initial cleanup and containment of debris flow deposits was a cooperative effort between ODOT and UPRR. ODOT performed emergency response to reopen the HCRH and initial mitigation by diverting the creek channel and debris flow paths. The mitigation plan was expanded to further reduce the risk of debris flows reaching the HCRH. This presentation will provide an overview of ODOT response to the debris flows, emergency mitigation efforts during the winter and spring of 2021, and construction of more robust mitigation in 2022.

George Machan, PE George has 48 years of experience in geotechnical engineering and project management. In the early 1970s, George earned a BSCE degree at UCONN and a MSCE degree at Purdue. He started his geotechnical career with Squier & Associates in 1975 in Lake Oswego. He joined ODOT in the statewide geotechnical office in 1984 and worked on many projects with major earthworks, ground improvement, and landslide mitigations. He subsequently transferred in 1991 as the lead project development manager for ODOTs portion of the Westside Corridor project, including widening of the Sunset highway from the zoo to Cedar Hills and the north section of OR-217, as well as the adjacent sections of light rail. George has been with Cornforth / Landslide Technology since 1996, focusing primarily on projects dealing with landslide mitigation and highway earthworks. His landslide projects have included the Beach Road debris flow landslide in Haines (Alaska), the Pioneer Mountain to Eddyville section of US-20 near Newport, Togwotee Pass landslides on US-26 near Yellowstone, the Rattlesnake Hills landslide near Yakima, Bonners Ferry rapid earthflow slide in northern Idaho, Scoby Hill landslide on SR-219 in western New York state, and the Punta Europa landslides in Equatorial Guinea.

Michael Zimmerman, PE, GE, CEG Michael is a Senior Engineering Geologist at Oregon Department of Transportation, Region 1. He has been with ODOT for the past four years after twenty-one years in geotechnical consulting in the Pacific Northwest. Much of his time over the past two years has been dedicated to post-wildfire geohazard cleanup from the Riverside Fire (Clackamas River Highway) and debris flows in the Columbia River Gorge. Growing up in a house built on the end moraine of the Wisconsin glacier in Illinois, his interest in geology started with a sampler of the Canadian Shield collected from the gravel driveway. Michael completed a B.S. in geological engineering at University of Missouri-Rolla (now Missouri S&T) and a M.S. in geological engineering at Michigan Technological University. He is registered in Oregon as both a Certified Engineering Geologist and a Geotechnical Engineer and will gladly tell you that engineering pays the bills, but geology makes it fun.

Location

Old Market Pub (View)
6959 SW Multnomah Blvd.
Portland, OR 97223
United States

Timezone: America/Los_Angeles
Online Access Information
After you have registered for the event, the online access information for the Zoom meeting will be provided on the order confirmation page and email. Please make sure you copy this link prior to the meeting start time.

Categories

Online / Streaming / Virtual

Kid Friendly: No
Dog Friendly: No
Non-Smoking: Yes!

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