Why don’t they just build a pipeline from the Mississippi River to Lake Powell. They actucally could reverse the flow of the Missouri River from St. Louis to Kansas City and then run a pipeline from there.
After looking as some of the logistics, probably have to run the pipeline from St. Loius to Maob Utah, 1200 miles. From there it would feed into the Lake Powell watershed.
The other option would be to build a pipepline right down the center of Interstate 40 from St. Louis right to Los Angeles. That would be about 1,800 miles. Their would be no land aquisition costs and no eminent domain issues.