IRA-MAC, Inc. IRA-MAC, Inc. Search | Advanced Search | New Members | Coupons and Discounts | All Categories Other >> Division 31 - Earthwork >> 31 25 00 Erosion and Sedimentation Controls IRA-MAC, Inc. 2785 S Liberty StBoise, ID 83709 | map | directions Robert Irusta (208) 362-3877 | fax: (208) 362-3928 Connect With Us Structural excavation, utilities, grading, and trenching. Member Since: 1995