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Platte
Sanitary Sewer Study


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West Yankton Sewer Feasibility Study
Platte Sanitary Sewer Project

Platte, South Dakota

The Platte Sanitary Sewer Master Study identified infrastructure deficiencies in the City of Platte after it was initiated following sewer surcharges into residential basements and poor performance of the treatment system. The City of Platte commissioned Eisenbraun and Associates to lead an effort to remediate the sanitary sewer infrastructure in the city.

The E/A Approach
E/A first took a comprehensive inventory of the sewer system and analyzed collected data. Utilizing a multi-function flow meter, E/A documented sewer flows in the trunk sewer line. Through computer modeling, E/A determined that the existing sewer had insufficient capacity and recommended that an independent contractor clean and make a video record of the City’s sewer system. Replacement of the City’s sewer mains became a priority after reviewing the results of E/A’s study and the televideo record. E/A produced a short video that enabled the City of Platte to graphically demonstrate the urgency to funding agencies and to explain the need of this project to the general population of the community.

The Outcome
In total, the study completed by E/A included or supported:
  • Detailed information on the overall condition of the City’s sewer system
  • Public acceptance of the rehabilitation project
  • Substantiation of need to various funding sources
  • Identification of those sections of sewer main in most imminent danger
The study resulted in the City of Platte receiving 1.25 million from grants and low interest loans for the project. A total of 7,500 feet of trunk sewer main had been found to be in critical condition. The second phase of the construction project included the replacement of approximately 17,500 feet of arterial sewer main. E/A’s prompt and professional analysis of the City’s sewer infrastructure directly led to a successful and well-funded public works project.