Contact Information

Engineering Department
Flood Plain Maps and Information
Magnesium Chloride Application
 Ferrin2 County Engineer John Ferrin Crosby is a native of St. Johns, Arizona. He received his Bachelor of Science degree in Civil Engineering from Northern Arizona University. He is a registered Professional Civil Engineer. Ferrin and his wife, Tara have five children . Both of their parents come from pioneer stock who settled in the White Mountains in the late 1800’s.
The Engineering Department is located on the West side of the Apache County Annex Building 75 West Cleveland Street St. Johns.
Office Hours are 6:30 am – 5:30 pm Monday – Thursday.
Engineering Staff
Apache County Engineering
P.O. Box 238
St. Johns, AZ 85936
Phone: (928) 337-7528
FAX: (928) 337-2062
Tamie Herrick,
Executive Assistant
PH: (928) 337-7528
Delos Bond
Flood Plain Manager &
Right of Way Specialist
Phone: (928) 337-7535
Dale Hauser
Safety & Purchasing Agent
Phone: (928) 337-7531
Shad Lindsey
Civil Engineer Aide/911 Addressing
Phone: (928) 337-7597
Dave Swietanski, Roads Manager District III
Phone: (928) 337-7505
Jared Greer, Signs Zach Pemberton, GIS Manager
Phone: (928) 337-7536
Tammy Davis
GIS/911 Addressing
Phone: (928) 337-7666