Counties
Winnebago County
District: 2
County Engineer: Joseph A. Vanderwerff, Sr.
Appointment Date: 1/26/1998
Address: 424 N. Springfield Ave.
Rockford, IL 61101
Telephone: (815) 319-4000
Fax: (815) 319-4001
Email: jvanderwerff@co.winnebago.il.us


Engineer Bio:
Joe received his B.S. in Civil Engineering from the University of Illinois in 1972, and M.B. from Northern Illinois University in 1978. Joe began his career with IDOT, District 2 where he worked for 7 years. He then joined Ciorba Group, a civil engineering consulting firm in Chicago, holding the position of Vice President. He has been the County Engineer for Winnebago since 1998.


County Background:
Established on January 16, 1836, Winnebago County bears an Indian name that was later transferred to the County.


County Population: 295266
Land Area (Sq. Miles): 520
Assessed Valuation: 5450075175
State Highway Mileage: 177
County Highway Mileage: 303
Township Highway Mileage: 628
Municipal Highway Mileage: 969
County Seat: Rockford
State House District(s): 67, 68, 69, 89
State Senate District(s): 34, 35, 45
U.S. Congressional Distict(s): 16


Past Engineers
NameStartFinish
A.R. Carter3/3/19148/6/1953
George R. Schroeder8/7/19532/28/1974
Eugene T. Wieland3/1/19742/28/1985
William G. "Bill" Lorence5/9/19855/10/1991
John T. Kretzer1/6/19928/14/1995
Ronald J. Heinen11/21/19959/30/1997