For project or qualifications inquiries, please contact:

Douglas Fell, PE, Executive Vice President and Chief Operating Officer
Email: dfell@clark-eng.com
Phone: (763) 545-9196
Toll Free: (877) 246-9196

Minneapolis, MN Office:
	621 Lilac Drive North Minneapolis, MN 55422-4609 Phone: (763) 545-9196 Fax: (763) 541-0056 Toll Free: (877) 246-9196 Emergency Services Hotline: (877) 572-3609 Click here for map

Aberdeen, SD Office:
	2301 8th Avenue NE Suite 125 Aberdeen, SD 57401 Phone: (605) 225-3494 Fax: (605) 225-5433 Toll Free: (888) 225-3494 Click here for map

Sioux Falls, SD Office:
	1410 West Russell Street Sioux Falls, SD 57104-1328 Phone: (605) 331-2505 Fax: (605) 331-2602 Toll Free: (877) 331-2505 Click here for map

Brookings, SD Office:
	214  5th Avenue Brookings, SD 57006 Phone: (605) 692-8799     Click here for map