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At DGR Engineering, we build the foundation for every day. From roads and power lines to where parks and water intersect your life, we make it all work, and we’ve been doing it for more than 65 years. Our projects in civil engineering, water systems, electrical distribution and surveying can be found all across the Midwest.

We build projects that both our clients and our employees can be proud of, because we live where we work. We have offices in Rock Rapids, Sioux City, and Ankeny, IA as well as Sioux Falls and Yankton, SD and we share that foundation with our clients.

As one of the top engineering firms in the country, DGR received notice that it was selected as a repeat honoree by PSMJ Resources, Inc. for inclusion in its 2018 “Circle of Excellence”. DGR has earned this honor every year since 2014.

Treatment Plant & Well Exploration

DGR Engineering (DGR) worked closely with OCRWS to design a new Water Treatment Plant to target iron and manganese removal from a shallow groundwater source near the site.

Treatment Plant & Well Exploration
Northwest IA

Airport Electrical Expertise

DGR led the design and construction of the $2.5 million airport electrical and instrument landing system as part of the $20 million reconstruction of the airport as a subconsultant to Helms and Associates.

Airport Electrical Expertise
Brookings, SD

West Substation Conversion

DGR provided design, procurement, construction administration services for conversion of the existing substation needed to accommodate generation interconnection from the new Red Rock Hydro Project.  Project increased area transmission reliability and local load serving capability. 

West Substation Conversion
Pella, IA

Runway Rehab / Apron Expansion

This multi-phase project included apron expansion, runway rehabilitation, hangar area expansion, as well as design and construction services for a new runway and taxiway.

Runway Rehab / Apron Expansion
Luverne, MN

Street Reconstruction

A multi-phase, multiple-year project to replace paving and aging utilities, install new sidewalks, decorative street lights and traffic signals.

Street Reconstruction
Sioux City, IA

New Airport Development

DGR led the design and construction phase engineering for the development of a new $30 million airport. Tasks included all phases of design and construction engineering activities.

New Airport Development
Sioux County, IA