Dunigan Bros., Inc. Search | Advanced Search | New Members | Coupons and Discounts | All Categories Other >> INDOT Prequalified Contractors as of 11/01/2024 >> E(H) Deep Sewer and/or Excavation Dunigan Bros., Inc. 911 E South StJackson, MI 49203 | map | directions (517) 787-4720 Visit Site Member Since: 2017