Specifications include, but are not limited to:General Services, Purchasing Division, will receive sealed bids for the following. Bid No. 101 Pavement Markings - Annual Refurbishment Bid No. 140 2015 Hot Mix Asphalt Resurfacing Program Bid No. 178 Rock Salt for Ice Removal Bid No. 179 Calcium Chloride Pellets for Ice Removal Bid No. 259 2015 PVC Subdrain Sealed bids will be received by the Polk County Department of General Services, Purchasing Division, Room 365, Polk County Administrative Office Building, 111 Court Avenue, Des Moines, Iowa, until 2:00 p.m., Thursday, March 26, 2015. Bids will be publicly opened and read at 2:05 p.m. on Thursday, March 26, 2015. Interested vendors may obtain bid packets from Room 365, Polk County Administrative Office Building, 111 Court Avenue, Des Moines, Iowa, between the hours of 8:00 a.m. and 5:00 p.m., weekdays