Administrative and Engineering Staff
Name	Position	Phone Number
Vicki Dumdei, P.E.	district engineer	641-422-9465
David Little, P.E.	assistant district engineer	641-422-9464
Dave Roeber, P.E.	district construction engineer	641-422-9448
Keith Norris, P.E.	district materials engineer	641-423-7676
Mark Black	district maintenance manager	641-423-8516
Robert Welper, P.E.	local systems engineer	641-422-9467
Nick Humpal, P.E.	design staff engineer	641-422-9446
Mark Callahan, P.E.	design staff engineer	641-422-9442
Krista Rostad	transportation planner	641-423-7584
Pete Hjelmstad	field services coordinator	641-422-9459
Ken Stark, P.L.S.	land surveyor	641-422-9460
Paige Merrill	secretary 2	641-422-9440
April Concepcion	secretary 1	641-423-7676
Thomas Brunscheon	engineering technician senior (construction)	641-422-9451
Dean Wiebke	engineering technician senior (construction)	641-422-9449
Robert Clark	engineering technician senior (traffic technician)	641-423-8516
Christopher Suntken	engineering technician senior (local systems)	641-422-9443
Brent Coggins	engineering technician senior (design)	641-422-9444
Vacant	engineering technician senior (design)	641-422-9445
Dan Mackey	engineering technician senior (right-of-way)	641-422-9455
Dan Chipera	design technician (right-of-way)	641-422-9452
Duane Nie P.L.S.	design technician (right-of-way)	641-422-9454
Miranda Eilders	survey party chief (right-of-way)	641-422-9458
Dave Ramirez	engineering operations technician (Waterloo)	319-235-1832
Kathie Rustad	engineering operations technician (Decorah)	563-382-3631
Craig Wood	engineering operations technician (Mason City)	641-423-8516
Chuck Scholl	construction technician assistant (right-of-way)	641-422-9456