After much study and meeting with representatives from almost all the government bodies involved with these issues we believe the following:
A genuine fear in the community was what got us together and why we believe 91% of Fargo people voted for flood protection. We all could see that the ENTIRE community was at risk of flooding. They told us in Winnipeg that fear is what motivated them to expand their diversion after the 1997 flood to provide 700 year protection.
The 500 year flood map from the corps shows water from the Red River to Mapleton.
The 700 year flood would look more like a large lake with water many miles wide from Wahpeton to Winnipeg.
Any solution must last 100 plus years.
Ideally the amount of water let through FM would get NO higher than about 30 feet.
A diversion on the North Dakota side would provide a barrier to flooding from the south, west and north.
The flow in a diversion is expected to be below ground level. Spoil banks would be more like a dike on the east side of the diversion.
Any water topping the diversion would flow west and north into fields. If the diversion overflowed in a 700 year flood the inside spoil bank would act as a ring dike around Fargo, West Fargo, etc to protect our cities. A dike would also need to be extended east to protect Moorhead.
Use clay from the diversion to also provide ring dikes for 700 year protection of farmsteads and communities in areas close to the diversion.
A result of the diversion would be to NOT require the buyout of any homes in FM.
It should provide protection to as large an area as is feasible.
It is preferable not to have a control structure in the Red River.
We want to maintain the integrity of the river corridor as well as its beauty and trees.
A diversion on the North Dakota side of the river is the only viable option. As long as the diversion has a favorable cost benefit ratio, the bigger the diversion the better. Based on the Fargo sales tax vote, political comments, etc, the chances look very good to fund a diversion with a favorable cost benefit ratio.
In Winnipeg the contractors preferred to move dirt in the winter. This would shorten the time needed to complete a diversion.