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Mouse River Enhanced Flood Protection Project Preliminary Engineering Report Released
Post Date: Feb 29 2012
Tags: 27th Street SE diversionapproved planflood planmaple diversionMouse River Enhanced Flood Protection Projectmouse river planPreliminary Engineering ReportRyan Ackerman
Minot, N.D. – The ND State Water Commission and Barr Engineering team presented the Mouse River Enhanced Flood Protection Project Preliminary Engineering Report to the Souris River Joint Board at a meeting of their Advisory Committee today. The Preliminary Engineering Report is a summary of the efforts undertaken to develop a preliminary alignment, as well as engineering, environmental, and cost considerations for plan implementation. In addition, the report includes detailed project maps outlining the recommended alignment footprint.
The preliminary alignment described in this report was developed through an extremely detailed, iterative process consisting of: (1) obtaining stakeholder input, (2) developing a conceptual alignment, (3) performing detailed hydraulic modeling of the alignment, and (4) engineering analysis and design. The Mouse River Enhanced Flood Protection Project objectives and constraints used to prepare the final report are outlined below:
  • Reduce the risk of flood damage to as many homes as reasonably possible
  • Minimize the project footprint and number of residential acquisitions required
  • Minimize increases in flood level water surface, flow rates, and duration
  • Develop a project that can be implemented at the lowest practical cost
  • Establish key transportation corridors that can remain open during the design flood event
  • Minimize environmental impacts to facilitate necessary regulatory approvals
  • Design a project that is consistent with the long-range objectives of the affected communities
The implementation of the plan outlined in the Preliminary Engineering Report would require the acquisition of approximately 278 residential properties within the City of Minot and 105 residences upstream and downstream of Minot.
The proposed plan incorporates 21.6 miles of earthen levees, 2.8 miles of floodwalls, 30 transportation closure structures and 33 stormwater pump stations.
The estimated cost of the project detailed in the Preliminary Engineering Report is  $820 million. Of the estimated cost, $565 million is the estimated construction cost of project features, $154 million is the estimated cost of  property acquisition, and the remaining $101 million is the estimated administrative cost of the project, including  planning, engineering, and program management costs.
The estimated project time frame for planning, engineering, environmental, and regulatory steps could be five years – or longer. Select components, which do not affect the existing flood risk reduction system and have minimal environmental impacts, could proceed on a separate path and at a faster pace. Construction of a project similar to the plan described in the report is likely to take a minimum of five years, and could be phased over an extended period, if necessary.
The executive summary, main report body, and Appendix A of the Preliminary Engineering Report can be found on the Mouse River Enhanced Flood Protection website at A full printed version of the Preliminary Engineering Report, including the executive summary and all appendices can be viewed at the Minot Public Library located at 516 2nd Ave SW in Minot.
For more information about the Mouse River Enhanced Flood Protection Plan, visit