21. The watershed is small, and covers an area of around 25 km 2 at the diversion dam . 22. To provide power for the site, Reclamation retrofitted The Boise River Diversion Dam with a small powerhouse. 23. It has a fully gated diversion dam at its head and was designed with a width of. 24. By 1922, the diversion dam was completed and named after Hayden and Arizona Senator Henry Fountain Ashurst. 25. In 1923, the concrete diversion dam at Lake Harriet was completed . with a surface area of. 26. The creek is the main source of drinking water for Silverton, which operates a diversion dam upstream. 27. The natural flow of the Segre River is diverted through the course by a diversion dam upstream. 28. A diversion dam southwest of Genoa diverts water to the Loup Canal to hydroelectric facilities in Columbus. 29. _No live bait fish may be transported to the Salt River from the diversion dam above Roosevelt Lake. 30. The San Miguel is more or less free flowing; however, diversion dams dot the river and alter flows.