Rose Creek Neighborhood Flood Protection, North Side of Coulee
Residents who currently reside along the north side of the Rose Coulee represent another neighborhood that is located along the front line of defense against Red River flooding. The City of Fargo has assembled a project team that includes Ultieg Engineers, SEH, and Stanley Consulting to design a solution with the ultimate goal of flood protection to a river level of 43’ without any sandbag deployment.
The first step was a geotechnical analysis in order to determine what our constraints are in terms of the type of structures that could be allowed. This analysis indicated to the City of Fargo that a combination of earthen levees and concrete structural walls at suitable locations would provide the level of protection desired.
The most desirable solution was to construct earthen levees along the entire length of this neighborhood, however, due to soil instability issues at certain locations the consequent solution was to construct concrete structural walls at those unstable locations. The final design and the one presented to the property owners was a combination earthen and structural flood walls to be constructed with an interior storm sewer system that when completed would offer flood protection to a river level of 43.0’ for earthen levee and 45.0’ for structural walls and would be built to FEMA’s standards required to be accepted as an accredited levee system.
This phase was bid during the fall of 2011. This project entailed the construction of all the earthen levees at location along the alignment determined during design. Along with the levee construction, storm sewer was installed behind the earthen levees and a storm sewer structure was installed with a sluice gate that will be closed during high water events.
The City has held multiple neighborhood meetings with the residents to develop and refine an acceptable project to the neighborhood. The most recent meeting was held on October 9, 2012 and the presentation from this meeting can be viewed by clicking on the link on the right side of this webpage. As a result of these meetings, the City has developed a plan that consists of a concrete floodwall being proposed. The design of this project is in its final phase and the easement descriptions have been created. In early 2013 the City will be working with the residents to acquire the necessary easements. Once all the easements are acquired the project will be bid, which is expected to occur in the spring of 2013. The construction of this project will take place in the summer of 2013 and hopefully be completed in the fall of 2013.