City of Dike Utilities For after hours emergencies contact Shane at (319) 989-2610. If Shane is unavailable please contact the Grundy Country Sheriff at (319) 824-6933 Grundy County Sheriff General Questions: (319) 824-6933Emergency: 911 Dike Fire Department General Questions: (319) 989-2291Emergency: 911Email: fire@dikeia.com Black Hills Energy (Natural Gas) Emergency Assistance: 1-800-694-8989 General Customer Service: 1-888-890-5554 Alliant Energy Phone: 1-800-ALLIANT IA One Call Phone: 811 or (800) 292-8989 Poison Control Phone: (800) 222-1222