Heavy Civil Contractor for Your Construction Needs

Dunigan Bros., Inc has completed construction of large, complex underground projects throughout the Midwest. We have extensive experience in handling the most complicated underground projects to meet the owner’s needs.

Water Transmission and Distribution Systems

Our team is skilled in building large and small diameter systems for water transmission and distribution. We have completed miles of water transmission mains as well as local systems that required not only mainline piping but also hundreds of home services on single projects. We can provide:

  • Small and Large diameter distribution and transmission piping, valves, and appurtenances.
  • Water service installation
  • Lead service replacements

Gravity Sewer Systems

We have extensive experience completing construction of gravity sanitary and storm sewer systems including:

  • Small and Large Diameter piping from 4” to 120”
  • Depths From Zero to in Excess of 40 Feet deep
  • Building complete new Sanitary and Storm Sewer Systems
  • Storm sewer management systems such as underground storage and Aqua-swirls
  • Above ground and over water trestle mounted piping 


We can build systems using any pipe product, such as:

  • Fiber-Reinforced Polymer (FRP)
  • Steel , Solid and Spiral Wound
  • Ductile Iron
  • PVC
  • Concrete
  • PCCP

Ground Conditions

We can do work in all ground conditions, including:

  • Sand
  • Clay
  • Muck
  • Bedrock
  • High Groundwater

Pressure Sewer Systems

We provide the construction of the following:

  • Force Mains
  • Grinder Stations
  • Low-Pressure Systems

Combined Sewer Separation

  • Conversion of Existing Combined Systems Into Storm or Sanitary Sewer
  • Construction of Diversion, Overflow Structures, and Screening Structures (Including Precast and Poured in Place)
  • Sewer Discharge Structures (Such As Headwalls and Overflow Structures)
  • Installation of Custom Fabricated Weirs, Screens, and Gates

Water and Wastewater Pumping and Control Systems

Our crew has completed construction of all types of water and wastewater pumping and control systems, including:

  • Lift Stations
  • Booster Stations
  • Flow Control/ Overflow Structures
  • Pressure Reduction Stations

Specialty Underground

We have done work on some of the most difficult ground and access conditions. Our crew is prepared to complete work that requires the most complex protection, shoring, and relocation of existing utilities. These services can be done anywhere including in roadways and along off-road and cross-country easements.

  • Specialty Sheeting and Ground Retention
  • Specialty Pipe Support (Such As Special Bedding and Piling Support)
  • Dewatering

Street Reconstruction

Apart from completing the underground work, rebuilding the surface is also often part of our job. We make sure that our employees have the knowledge and skills to complete roadway and streetscape reconstruction to restore streets, neighborhoods, and other properties to their original or improved conditions.

Site Work and Development

Our team can complete all types of site work and development. We handle projects involving residential and commercial development, industrial facilities, factories, and warehouses. Services include:

  • Site Piping
  • Foundation Excavation
  • Mass Earthmoving
  • Road and Driveway Construction
  • Parking Lot Construction
  • Specialty Foundation Support
  • Pit Construction


We aim to help create a better project for both the owner and the contractor, resulting in a more efficient and economical job. Our professional office staff can provide the guidance you need at all stages of your project, from planning all the way to completion. You can count on us to assist you with the following:

  • Site Layout
  • Pipeline Routing
  • Material Selection
  • Design/Constructability Review

Business Address

911 E. South Street Jackson, MI 49203

Service Areas

We serve all of Michigan, Indiana, and Northwest Ohio.