Showalter Construction Company, Inc. Showalter Construction Company, Inc. Search | Advanced Search | New Members | Coupons and Discounts | All Categories Other >> Division 31 - Earthwork >> 31 00 00 Earthwork Showalter Construction Company, Inc. 5101 Joy LnMarsing, ID 83639 | map | directions Brion G. Showalter (208) 896-4331 | fax: (208) 896-5151 Visit Site Specializing in earth work, ponds, lagoons, irrigation systems, roads, and site work. Member Since: 2001