Detail of a crane at Hoover Dam, Nevada. This crane was one of the original cranes used during construction of the dam in the 1930s.
The two 395-feet-tall water intake towers rise out of the water on the Nevada side of Hoover Dam. Two nearly-identical towers are also on the Arizona side.
These power lines carry freshly-generated electricity away from Hoover Dam to distant destinations.
This metal grate prevents large objects from being swept into the storm drainage system of Uptown Dallas.
This dam, in Allen, Texas, was built in 1874 to provide water for the Houston and Texas Central Railroad to provide water for their steam engines.
The spillway riser at Lake Texoma along the Texas-Oklahoma border.