Title: Invitation to Bid Bid/RFP Status: Open - accepting bids and proposals Bid/RFP Due Date: Contact: Administration 1005 25th Avenue NE Great Falls, MT 59404 (406) 727-8390 Engineering 1025 25th Avenue NE Great Falls, MT 59404 (406) 771-1258 Operations 1025 25th Avenue NE Great Falls, MT 59404 (406)