Rock Rapids Municipal Utilities
Rock Rapids, IA
- Repair of leaking underdrain
- Installation of new 30-year interior coating
- Installation of corrosion proof stainless steel underdrains.
- Recoat filter exterior
- Convert from water only to air and water backwash
- Cathodic protection
- Economical rehabilitation of existing gravity sand filters
- Installation of extended life coating systems
- Staging rehabilitation to maintain service during the project
Gravity Filter Rehabilitation
Rock Rapids Municipal Utilities operated a 35-year old gravity sand filter that had been repaired and recoated multiple times in the past. DGR Engineering evaluated replacement of the filters and construction of a new water treatment plant. However, rehabilitation of the existing filters was significantly more economical.
Work included: removal and replacement of existing filter wash troughs, media and underdrain and installation of new air wash blower system. Recoating of interior and exterior of filter, catwalk and process piping and miscellaneous appurtenant work. Interior coating consisting of a 30 mil polyurethane high strength coating system.
- Electrical Power
Fuel System, Terminal, Hangars
Design and construction services for support facilities at the new Sioux County Regional Airport.
Sioux County, 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.
Sioux County, IA
DGR Engineering collaborated with a long-standing airport engineering partner at the Watertown, SD Regional Airport to provide electrical design and construction services for the airport including runway and taxiway lights, lighted signs and airport electrical systems upgrades.
Pump Station & Storage Reservoirs
The new Edgerton Pump Station (EPS) was constructed to facilitate bringing purchased water from Lewis & Clark Regional Water System (L&C) to the LPRW system.
Sanitary Sewer Rehabilitation
DGR Engineering has experience in sanitary sewer rehabilitation including: CIPP sewer main lining, service line grouting or lining (top hat), structure rehabilitation, and other related techniques.
Ellsworth, Balaton & Hendricks, MN