Departmental Advisory Board

Advisory Board Chair

Douglas R. Barkley, M.S., P.E., President
• Barkley Consulting Engineers Inc.
• Structural & Civil Engineers
• 2804 Remington Green Circle, Suite 1
• Tallahassee, FL 32308
• Tel: 850.297.0440
• Fax: 850.297.0697
• Email: dbarkley[@]barkleyengineering.com

Current Members

Sastry Putcha, Ph.D., P.E.
• State Construction Geotechnical Engineer:
• State Construction Office
• Florida Department of Transportation
• 605 Suwannee Street
• Tallahassee, Florida 32399-0450
• Tel: 850.414.4148
• Email: sastry.putcha[at]dot.state.fl.us

Mark C. Wilson, P.E.
• Deputy State Traffic Operations Engineer
• Florida Department of Transportation
• 605 Suwannee Street
• Tallahassee, Florida 32399-0450
• Email: mark.wilson[@]dot.state.fl.us
• Website: www.dot.state.fl.us/trafficoperations

Gene Martin, P.E.
• PBSJ
• Project Director
• Transportation Services
• 120 Beckrich Road, Suite 230
• Panama City Beach, Florida 32407-2516
• Tel: 850.236.8675
• Fax: 850.236.8676
• Cell: 850.527.2124
• Email: gmartin[@]pbsj.com

Judith Hayden, P.E.
• Environmental and Geotechnical Specialists, Inc.
• Consulting Engineers
• 3154 Eliza Road
• Tallahassee, FL 32308-6229
• Tel: 850.386.1253
• Fax: 850.385.8050
• Email: egsjmh@cs.com

Sal G. Arnaldo, P.E.
• Civil Engineer
• City of Tallahassee
• Water Utility
• 300 S. Adams Street, B-26
• Tallahassee, FL 32301
• Tel: 850.891.6170
• Fax: 850.891.6170
• Cell: 850.694.8167
• Email: arnaldos[@]talgov.com

Peter Okonkwo, M.S., P.E.
• President
• Spectra Engineering & Research, Inc.
• Civil.Environmental.Planning.Land Surveying
• 345 S. Magnolia St., Suite E-25
• Tallahassee, FL 32301
• Tel: 850.656.9834
• Fax: 850.942.2717
• Email: pokonkwo[@]spectraengr.com
• Website: www.spectraengr.com

Jacques Registe, P.E.
• Register Engineering Group
• 1427 N Bronough St.
• Tallahassee, FL 32303
• Tel: 850.894.4521
• Email: registerj[@]reng.biz

John Bell, P.E.
• President
• Coloney Bell Engineering
• 1624 Village Square Blvd., Suite 101
• Tallahassee, FL 32309
• Tel: 850.222.8193
• Email: JTB[@]ColoneyBell.com

Mark Nelson, P.E.
• Assistant Chief
• US Army Corps of Engineers
• Jacksonville District
• 701 San Marco Blvd.
• Jacksonville, FL 32207
• Tel: 904.232.2253
• Mark.h.nelson[@]usace.army.mil

Edward E. Middleton, Ph. D., P.E.
• Sr. Water Resource Engineer
• Gannett Fleming, Inc.
• 10751 Deerwood Park Blvd. Suite 140
• Jacksonville, FL 32256-6912
• Tel: 904.998.9809 ext#11
• Email: emiddleton[@]gfnet.com

Victor H. Herrera, E.I.
• Engineer II
• PBS&J
• 2639 N. Monroe Street, Building C
• Tallahassee, Florida 32303
• Tel: 850.575.1800 ext#7822
• Cell: 786.412.4447
• Fax: 850.575.1099
• Email: vhherrera[@]pbsj.com
• www.pbsj.com