The project to restore the Provo River delta can be summed up this way: It's not about saving an ugly fish. It's about restoring an ecosystem.
Nevertheless, the effort to save the endangered June sucker (the ugly fish) is driving the project. The sucker was listed as endangered in 1986, and under the Endangered Species Act, federal agencies are obliged to try to save it. An essential element of that program is to recreate a Provo River delta on the east side of Utah Lake so that larvae from fish that spawn in the river can survive to adulthood and re-enter the lake.
This will entail reconfiguring the existing deep, man-made channel where the river now flows into the lake and rerouting the water through shallower meanders and among islands to be created to the north. The existing channel is too deep, too cold and too devoid of aquatic plants to allow the infant fish to survive today.