Course of the Colorado River into the Virgin River, which ran southward through what is now Overton Arm to join the Colorado River near the now-ghost town of St. Thomas, Nevada. At Hoover Dam, the Colorado turns due south through Black Canyon, a direction it will follow for the remainder of its course to the Gulf of California. It passes under the Mike O'Callaghan–Pat Tillman Memorial Bridge (Hoover Dam Bypass), the highest concrete arch bridge in the world, carrying U.S. Route 93 at a height of above the Colorado River. At the end of Black Canyon the Colorado widens into Lake Mohave, created by the
Cabril Dam by CPPE, but operated by EDP. The plant has a nameplate capacity of 108 (97) MW. Its average annual generation is 304.8 (301 or 312) GWh. The power station contains 2 Francis turbine-generators with 47 MW (61 MVA) each in a surface powerhouse at the toe of the dam. The turbine rotation is 214.3 rpm. The minimum hydraulic head is 84.6 m, the maximum 121.5 m. Maximum flow per turbine is 54 m³/s. Cabril Dam Cabril Dam () is a concrete double curvature arch dam on the Zêzere River, where the river forms the border line between the districts of