Significance: This plant represents L.L. Nunn's first major hydroelectric generating facility outside of Colorado. At the time of completion (1898), it generated three-phase AC power at a pressure of 40,000 vo More
Significance: This plant represents L.L. Nunn's first major hydroelectric generating facility outside of Colorado. At the time of completion (1898), it generated three-phase AC power at a pressure of 40,000 vo More
Significance: This plant represents L.L. Nunn's first major hydroelectric generating facility outside of Colorado. At the time of completion (1898), it generated three-phase AC power at a pressure of 40,000 vo More
Significance: This plant represents L.L. Nunn's first major hydroelectric generating facility outside of Colorado. At the time of completion (1898), it generated three-phase AC power at a pressure of 40,000 vo More
Significance: This plant represents L.L. Nunn's first major hydroelectric generating facility outside of Colorado. At the time of completion (1898), it generated three-phase AC power at a pressure of 40,000 vo More
Significance: This plant represents L.L. Nunn's first major hydroelectric generating facility outside of Colorado. At the time of completion (1898), it generated three-phase AC power at a pressure of 40,000 vo More
Significance: This plant represents L.L. Nunn's first major hydroelectric generating facility outside of Colorado. At the time of completion (1898), it generated three-phase AC power at a pressure of 40,000 vo More
Significance: This plant represents L.L. Nunn's first major hydroelectric generating facility outside of Colorado. At the time of completion (1898), it generated three-phase AC power at a pressure of 40,000 vo More
Significance: This plant represents L.L. Nunn's first major hydroelectric generating facility outside of Colorado. At the time of completion (1898), it generated three-phase AC power at a pressure of 40,000 vo More
Significance: This plant represents L.L. Nunn's first major hydroelectric generating facility outside of Colorado. At the time of completion (1898), it generated three-phase AC power at a pressure of 40,000 vo More
Significance: This plant represents L.L. Nunn's first major hydroelectric generating facility outside of Colorado. At the time of completion (1898), it generated three-phase AC power at a pressure of 40,000 vo More
Significance: The Provo River Bridge is a significant example of a Pratt through-truss bridge and is assumed to be built all of wrought iron. The bridge surveyed was originally one of three spans built in 1884 More
Significance: The Provo River Bridge is a significant example of a Pratt through-truss bridge and is assumed to be built all of wrought iron. The bridge surveyed was originally one of three spans built in 1884 More
Significance: The Provo River Bridge is a significant example of a Pratt through-truss bridge and is assumed to be built all of wrought iron. The bridge surveyed was originally one of three spans built in 1884 More
Significance: The Provo River Bridge is a significant example of a Pratt through-truss bridge and is assumed to be built all of wrought iron. The bridge surveyed was originally one of three spans built in 1884 More
Significance: The Provo River Bridge is a significant example of a Pratt through-truss bridge and is assumed to be built all of wrought iron. The bridge surveyed was originally one of three spans built in 1884 More
Significance: The Provo River Bridge is a significant example of a Pratt through-truss bridge and is assumed to be built all of wrought iron. The bridge surveyed was originally one of three spans built in 1884 More
Significance: The Provo River Bridge is a significant example of a Pratt through-truss bridge and is assumed to be built all of wrought iron. The bridge surveyed was originally one of three spans built in 1884 More
Significance: The Provo River Bridge is a significant example of a Pratt through-truss bridge and is assumed to be built all of wrought iron. The bridge surveyed was originally one of three spans built in 1884 More
Significance: The Olmstead Bridge is an excellent, unaltered example of a pin connected, steel Howe Truss railroad bridge, typical of the late nineteenth and early twentieth centuries. Although originally cons More
Significance: The Olmstead Bridge is an excellent, unaltered example of a pin connected, steel Howe Truss railroad bridge, typical of the late nineteenth and early twentieth centuries. Although originally cons More
Significance: The Olmstead Bridge is an excellent, unaltered example of a pin connected, steel Howe Truss railroad bridge, typical of the late nineteenth and early twentieth centuries. Although originally cons More
Significance: The Olmstead Bridge is an excellent, unaltered example of a pin connected, steel Howe Truss railroad bridge, typical of the late nineteenth and early twentieth centuries. Although originally cons More
Significance: The Olmstead Bridge is an excellent, unaltered example of a pin connected, steel Howe Truss railroad bridge, typical of the late nineteenth and early twentieth centuries. Although originally cons More
Significance: The Olmstead Bridge is an excellent, unaltered example of a pin connected, steel Howe Truss railroad bridge, typical of the late nineteenth and early twentieth centuries. Although originally cons More
Significance: The Olmstead Bridge is an excellent, unaltered example of a pin connected, steel Howe Truss railroad bridge, typical of the late nineteenth and early twentieth centuries. Although originally cons More
Significance: The Vivian Park Bridge has been determined to be eligible for inclusion on the National Register of Historic Places. It is considered to be a contributing element to the significant Bridal Veil F More
Significance: The Vivian Park Bridge has been determined to be eligible for inclusion on the National Register of Historic Places. It is considered to be a contributing element to the significant Bridal Veil F More
Significance: The Vivian Park Bridge has been determined to be eligible for inclusion on the National Register of Historic Places. It is considered to be a contributing element to the significant Bridal Veil F More
Significance: The Vivian Park Bridge has been determined to be eligible for inclusion on the National Register of Historic Places. It is considered to be a contributing element to the significant Bridal Veil F More