Benedictine Campus Mapping Project	Platte Easement Surveys	Fort Randall Boundary Surveys	USBR Survey Contract	L&C Lake Boundary Survey	Mni Wiconi Rural Water System Surveys	Lake Sakakawea Subdivision Surveys	NORAD Boundary Survey

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Surveying & Mapping Services for Mni Wiconi Rural Water System

central South Dakota

Eisenbraun and Associates was requested to perform complete surveying and mapping services for the raw water intake, pump station site, and water treatment plant for the Mni Wiconi Rural Water System. The site is located along the bank of the Missouri River just below Oahe Dam in Central South Dakota. The project would involve hydrographic surveying of the Missouri River at the proposed intake site as well as topographic and boundary surveying of the pump station and water treatment plant sites. The survey would also involve piping alignment surveys with complete plan and profile data acquisition necessary. Eisenbraun and Associates completed the hydrographic survey work with our fully automated hydrographic survey vessel and GPS positioning methodologies. An Odom Echotrac Mark II dual frequency fathometer was utilized for the soundings. The data were captured in both digital format and on a continuous strip chart. A complete topographic map of the channel bottom was developed from the data that were acquired.

Boundaries were established on both the treatment plant site and the pumping station site. Property corners were tied to sectional control that was recovered in the field and also tied to existing government boundary in the area. State plane coordinates were used to provide a consistent coordinate system throughout the entire project area.

Topographic data were collected on all sites using a combination of GPS real-time kinematic (RTK) techniques and conventional total station methodologies. Topographic maps were developed of both sites with one (1) foot contour intervals. Plan and profile sheets were also prepared for the pipeline corridor. At the client’s request, the maps were prepared at different scales and with different contour intervals to best suit their design purposes. The project was completed within budget and ahead of schedule, allowing the enormous rural water system to move forward without delays.