Melissa Barbosa, P.E.

Azusa Light & Water
729 N. Azusa Ave.
Azusa CA 91702
(626) 812-5173

Melissa Barbosa, P.E. is a Water System Engineer for Azusa Light & Water and a long-time Azusa resident. She started her ASCE membership and involvement in 2002 when she participated in the Cal Poly Pomona Student Conference tug-o-war competition. For 8 years she was involved with ASCE Younger Members; in 2014 she served as ASCE YMF SBR Past-President and the last 4 years serving on the Branch Board. Always on the go, volunteers for the Azusa Kids Come First golf tournament, K-12 outreach, loves skiing and kayaking; the board game Settlers of Catan and cheers for the Notre Dame Fighting Irish.

Jeff D. Meiter, L.S., R.C.E.

Valued Engineering, Inc.
180 N. Benson Avenue Suite “A”
Upland CA 91702
(909) 982‐4601

Jeff Meiter, LS, RCE, is the President/CEO of Valued Engineering, which is a small business Civil Engineering and Surveying Company in Upland. He has been involved with ASCE since college in the 1990’s when he participated in the ASCE Southwest Regional Conference surveying and concrete canoe competitions. He has been a member of ASCE since 1994, and has been serving on the local ASCE Branch Board for the past 2 years. When not at work, he spends his time with family watching movies and live theater.

Chet Robinson, P.E., G.E.

41571 Corning Place, Suite 101
Murrieta, CA 92562
(951) 304-2300

Chet Robinson, PE, GE, is a Geotechnical Engineer working for Geocon West in their Murrieta Office. He has been involved with ASCE since college in the late 1990’s when he participated in the ASCE Rocky Mountain Student Conference competitions. He has been a member of ASCE since 2000, and has served on the local ASCE Board for 1 year. Even though he works to help fix our roadways, his favorite thing is to get off-road via annual backpacking trips and taking his Jeep up in the mountains of Big Bear.



Andrea Gonzalez, M.P.A., P.E., M.ASCE

Riverside County Flood Control
1995 Market Street
Riverside, Ca 92501
(951) 955-3743


Andrea Gonzalez, PE, is an Assistant Civil Engineer for Riverside County Flood Control and Water Conservation District, working for the Water Quality Compliance (formerly NPDES) section as the Santa Ana Region MS4 Permit Manager. Andrea has been involved with ASCE San Bernardino/Riverside YMF since she graduated from Cal Poly Pomona in 2013 and served as the Cal Poly Pomona Practitioner Advisor for 5 years. This is Andrea’s first year serving in the ASCE SBR Branch as Secretary. Andrea enjoys traveling and one of her traveling goals is to see all the Disneyland’s in the world (she has four down, two left to see).

Newsletter Editor
Entcho Anguelov, P.E.,M.ASCE

Albert A. Webb Associates
3788 Mccray St
Riverside, CA 92506
(951) 320-6074

Entcho Anguelov, PE has been a member of ASCE for many years but became involved in the local branch in 2016 as an assistant newsletter editor. Entcho works as a senior engineer for Albert A. Webb Associates in Riverside in the Stormwater Engineering Department. He finds civil engineering profession challenging and exciting enough to still keep him in its strong embrace for almost 30 years. He is married to a civil engineer, and their son is a civil engineer as well. Entcho loves skiing, woodworking and photography.

YMF President
Christopher Quach, PE

City of Riverside Public Utilities
3750 University Avenue
Riverside, CA 92501
(951) 214-3128

Christopher Quach, PE, is an Assistant Water Engineer for the City of Riverside Public Utilities in the Water Planning & Resources group. Chris has been involved with ASCE San Bernardino-Riverside Younger Member Forum (YMF) since 2015 when he was recruited by Melissa at the After PE Exam Happy Hour. He has served in various positions such as Co-Newsletter Editor, Co-Secretary, and President-Elect. This is his first year serving in the ASCE SBR YMF as President. Chris is most happy when he’s snowboarding, hiking, and traveling the world with his Fiancée (Jing Yang - serving as SBR YMF VP) who is also a Civil Engineer.



Geotechnical Chair
Robbie Warner, PE, GE

Geo-Logic Associates
2777 E. Guasti Rd., Suite 1
Ontario, CA 91761
(909) 772-3824

Robbie Warner, PE, GE, Senior Geotechnical Engineer for Geo-Logic Associates, where he focuses on geotechnical, geologic, and seismic engineering for solid waste landfills. Mr. Warner has been a member of ASCE for over 30 years, attending geotechnical meetings in the San Francisco Bay Area; Pittsburg, Pennsylvania; Los Angeles; and southern California’s Inland Empire. His recent experience serving on the Inland Empire Geo-Institute’s Board is his first ASCE leadership experience. He enjoys traveling in the US and abroad, hiking, skiing, horsing around with his son and friends, and working on projects around his house in the San Gabriel Mountains community of Mt Baldy.

Stormwater Chair
Guillermo (Bill) Flores Jr., PE, ENV SP, CPESC, CPSWQ, QSD

HDR Inc.
2280 Market St., Suite 100
Riverside, CA 92501
(951) 320-7311

Bill Flores, PE, is a Senior Project Manager for HDR Inc. (Riverside office), a national civil engineering consulting company. He was the 2010-2012 ASCE LA Section Vice President of Technical Groups and was President of this Branch for two years in 2005 & 2006. Bill is responsible for projects involving Project Management, and Drainage and Water Quality activities in Southern California. Bill holds a Bachelor of Science degree in Civil Engineering from Cal Poly, Pomona. He is involved with Fundraising for the American Heart Association and is a volunteer at the San Bernardino County Museum.



Steven Ledbetter, P.E.

TKE Engineering, Inc.
2305 Chicago Avenue
Riverside, CA 92507
(951) 680-0440

Steve Ledbetter, PE, is a Project Manager with TKE Engineering, Inc. located in Riverside, CA. He started his ASCE involvement as treasurer with the Cal Poly Pomona Student Chapter in 2009 and has been serving the ASCE SBR Branch for the past 7 years. In his spare time, Steve enjoys off-roading and spending time with his family.

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Past Presidents

ASCE SBR Branch was established and created in 1954. Below is a list of ASCE SBR’s past presidents.

Name ASCE Fiscal year (October 1-September 30)
Albert A. Webb 1954
John L. Merriam 1955
Doyle F. Boen 1956
Jack W. Pierce 1957
Horace P. Hinckley 1958
Lawrence A. Coleman 1959
Omer H. Brodie 1960
Raymond V.B. Stone, Jr. 1961
Walter F. Qurlyin 1962
Walter F. Quillin 1963
William Schlachter, Jr. 1964
William D. Gardner 1965
Victor M. Delkab 1966
Robert W. Austin 1967
Harry J. Krueper 1968
Aaron D. Darnell 1969
Lynwood C. Newton 1970
Galen N. Peterson 1971
Ronald F. Carducci 1972
Bill C. Mann 1973
Douglas M. Isbell 1974
Eugene L. Diepholz 1975
Eugene L. Diepholz 1976
Richard A. Barrett 1977
Allen D. Joy 1978
Roger Teal 1979
Richard S. Titera 1980
C. Glenn Wilson 1981
Eugene Ehe 1982
Douglas H. Mays 1983
Wesley Hylen 1984
Calvin K. Wang 1985
R. Logan Hardison 1986
Dale Wintergerst 1987
Richard W. Corneille 1988
Ray Wellington 1989
Tim Mim-Mack 1990
Adele Dunham 1991
Phil Douglas 1992
Mark Messrersmith 1993
Jeff Endicott 1994
Dennis Heider 1995
Randy Hill 1996
Trudi Loy 1997
Rich Haller 1998
Kevin R. Josker 1999
Michael P. Thornton 2000
Lorenz R. Gonzales 2001
Mark R. Norton 2002
Steven J. Hosford 2003
Theeravut Thaipejr 2004
Guillermo Flores, Jr., P.E. 2005
Guillermo Flores, Jr., P.E., M.ASCE 2006
Christopher S. Turnage, P.E., M.ASCE 2007
Terry M. Renner, A.M.ASCE 2008
Timothy R. Wilson, P.E., R.A., M.ASCE 2009
Brian D. Wolfe, A.M.ASCE 2010
Laurentiu Popescu, P.E., M.ASCE 2011
Rita V. Escobar, A.M.ASCE 2012
William M. Addington, P.E., L.S., M.ASCE 2013
Edwin Quinonez, P.E., M.ASCE 2014
Brandon L. Reyes, P.E., M.ASCE 2015
Steven W. Ledbetter, P.E., M.ASCE 2016
Kenneth E. Cox, P.E., G.E., M.ASCE 2017 (October 1-July 10)
Julianna Adams, P.E., M.ASCE 2017 (July 10-September 19)
Melissa T. Barbosa, P.E., M.ASCE 2017 (September 19-September 30)
Melissa T. Barbosa, P.E., M.ASCE 2018

Social Connection



P.O. Box 1541
Riverside, CA 92502-1541

Phone: 951.532.4510