Client:
West River Lyman-Jones Rural Water Systam
Murdo, SD
Key Features:
- 70 total miles of pipeline, including Phase 2 and 3
- Two stream crossings over 500 ft in length
Key Experience:
- Trenchless technologies used to minimize fish and wildlife disturbance
Pipeline Construction
Construction of the North Core Pipeline project consisted of approximately 70 miles of pipeline from near Ft. Pierre to Philip, four ground storage reservoirs, and four pump stations. The project included 12-inch through 16-inch diameter pipe, valves, stream crossings, and miscellaneous appurtenant work. The pipeline route followed the route of Highways 14/34 with some cross-country segments. Stream crossings were installed using a directional boring method as to avoid disturbance to fish and wildlife. The pipeline system was designed for over 1,700 gpm and brought water service to rural customers and small communities in western South Dakota.
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Site Development
DGR Engineering (DGR) worked with the City and the project architect for all aspects of the project including topographic survey, site design, construction survey, construction observation and administration.
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Sanitary Sewer Rehabilitation
The project was bid and came in under budget. Manhole lids were raised to provide better access in some areas, and rehabilitation of the sewer system was completed to give another 50 years of life to the City’s much-needed infrastructure.
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Wastewater Treatment Facility
MBBR technology was chosen based on cost, operational flexibility and most importantly, limited land availability.
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Floodplain Analysis
DGR employed a Geographic Information System (GIS) in conjunction with the U.S. Army Corps of Engineers to first determine the 100-year flood elevations and delineate the floodway boundaries.
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Distribution Conversion
Due to concerns with the age and condition of the structures, along with safety clearances to energized equipment and conductors, a project was undertaken to replace the old infrastructure with new underground lines and associated padmount equipment.
Redwood Falls, MN
Street & Utility Improvements
Morningside Avenue was reconstructed totaling approximately 1,300 linear feet. The project included new sanitary sewer, water main, storm sewer, fiber conduits, decorative street lighting, and 9-inch concrete paving with colored concrete sidewalks.
Sioux City, IA