INTERMOUNTAIN RURAL ELECTRIC ASSOC. Share: Utility Contractors INTERMOUNTAIN RURAL ELECTRIC ASSOC. Visit Website 5496 N US Hwy 85 Sedalia, CO 80135 (303) 688-3100 (303) 660-8906 (fax) Rep Info Map Whom to Contact Shannon Kasper Phone: (303) 688-3100 Send an Email Audra Mangus Phone: (303) 688-3100 Send an Email Deanna Petravich Phone: (303) 688-3100 Send an Email Amanda Steiner Phone: (303) 688-3100 Send an Email What's Nearby? Distance: 5 10 15 20 25 50 mi.