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VOLUME 5 <br />ISSUE 1 <br />May 2017 <br /> <br /> <br /> <br /> <br /> <br /> <br />In this Issue <br />Introduction……………………………………..…….….. 1 <br />Thinking Fast – Emergency Response to Seepage <br />and Internal Erosion…………………...……….………. 2 <br />Calibration, Validation, and Verification: Bringing More Certainty to the <br />Uncertainty of Hydrologic Modeling Results…………………………..…………. 12 <br />Inspecting Corrugated Metal Pipes in Embankment Dams…………………….. 20 <br />1 <br />A SEMI-ANNUAL PUBLICATION FOR WESTERN DAM ENGINEERS <br /> FEMA Training Aids for Dam Safety (TADS): A Self-Instructional <br />Study Course in Dam Safety Practices <br />ASDSO NATIONAL DAM SAFETY CONFERENCE, Sept <br />10-14, San Antonio, TX <br />Upcoming ASDSO Webinar Dam Safety Training: <br /> Introduction to Embankment Dams by John W. France, <br />P.E. (AECOM); June 13, 2017 <br /> How to Make Your Emergency Action Plan More <br />Effective by Steve W. Jamieson, P.E.; Bill McCormick, <br />P.E.; and Kerry Kimble; July 11, 2017 <br /> <br />Upcoming ASDSO Classroom Technical Seminars <br /> Dam Failures and Lessons Learned, Chicago, IL <br />May 16-18, 2017 <br /> HEC-HMS, Austin, TX, June 27-29, 2017 <br /> Soil Mechanics for Earth Dam Design and Analysis, <br />Denver, CO, July 26-28, 2017 <br /> <br />ASDSO Training Website Link <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />In this issue of the Western Dam Engineering , Technical Note <br />we present articles on emergency response to seepage and <br />internal erosion, certainty and uncertainty of hydrologic <br />modeling results, and inspections of corrugated metal pipes. <br />This semi-annual newsletter is meant as an educational resource <br />for civil engineers who practice primarily in rural areas of the <br />western United States. This publication focuses on technical <br />articles specific to the design, inspection, safety, and <br />construction of small to medium sized dams. It provides general <br />information. The reader is encouraged to use the references <br />cited and engage other technical experts as appropriate. <br /> <br />The material in this publication has been prepared in accordance with generally recognized engineering principles and practices, and is for general information only. The information presented should not be used without first securing competent advice from qualified professionals with respect to its suitability for any general or specific application. No reference made in this publication constitutes an endorsement or warranty thereof by AECOM or sponsors of this newsletter. Anyone using the information presented in this newsletter assumes all liability arising from such use. <br /> The Western Dam Engineering Technical <br /> Note is sponsored by the following <br /> agencies: <br /> Colorado Division of Water Resources <br /> Montana Department of Natural Resources <br /> Wyoming State Engineer’s Office <br /> New Mexico Office of the State Engineer <br /> This Technical Note was compiled, written, <br /> and edited by AECOM in Denver, <br /> Colorado <br /> Funding for the Technical Note has been <br /> provided by the FEMA National Dam Safety <br /> Act Assistance to States grant program. <br /> <br /> Article Authors: <br /> AECOM: Doug Yadon, PE, Chad Vensel, PE; <br /> Hui-Ming “Max” Shih, PhD, PE, CFM; <br /> Josh Shackelford, PE; Jennifer Williams, PE; <br /> Jason Boomer, PE; John France, PE <br /> <br /> Editorial Review Board: <br /> Michele Lemieux, PE, Montana Dam Safety <br />Program Supervisor; Bill McCormick, PE, PG, <br />Colorado Chief Dam Safety Branch; <br />Mike Hand, PE, Wyoming Dam Safety <br /> Program; Mark Ogden, PE, Association <br /> of State Dam Safety Officials; <br /> and Matthew Lindon, PE, Loughlin Water <br /> Associates; Charles Thompson, PE, Chief, <br /> Dam Safety Bureau, New Mexico <br /> <br />GOOD TO KNOW