Significance: The Four Mile Bridge is one of only two rigid connected Pennsylvania Through trusses with substruts still functional on the state and county roads in Wyoming. With a simple span of 175 feet, it i More
Significance: The Four Mile Bridge is one of only two rigid connected Pennsylvania Through trusses with substruts still functional on the state and county roads in Wyoming. With a simple span of 175 feet, it i More
Significance: The Four Mile Bridge is one of only two rigid connected Pennsylvania Through trusses with substruts still functional on the state and county roads in Wyoming. With a simple span of 175 feet, it i More
Significance: The Four Mile Bridge is one of only two rigid connected Pennsylvania Through trusses with substruts still functional on the state and county roads in Wyoming. With a simple span of 175 feet, it i More
Significance: The Four Mile Bridge is one of only two rigid connected Pennsylvania Through trusses with substruts still functional on the state and county roads in Wyoming. With a simple span of 175 feet, it i More
Significance: The Four Mile Bridge is one of only two rigid connected Pennsylvania Through trusses with substruts still functional on the state and county roads in Wyoming. With a simple span of 175 feet, it i More
Significance: The Four Mile Bridge is one of only two rigid connected Pennsylvania Through trusses with substruts still functional on the state and county roads in Wyoming. With a simple span of 175 feet, it i More
Significance: The Four Mile Bridge is one of only two rigid connected Pennsylvania Through trusses with substruts still functional on the state and county roads in Wyoming. With a simple span of 175 feet, it i More
Significance: The Four Mile Bridge is one of only two rigid connected Pennsylvania Through trusses with substruts still functional on the state and county roads in Wyoming. With a simple span of 175 feet, it i More
Significance: The Four Mile Bridge is one of only two rigid connected Pennsylvania Through trusses with substruts still functional on the state and county roads in Wyoming. With a simple span of 175 feet, it i More
Significance: The Four Mile Bridge is one of only two rigid connected Pennsylvania Through trusses with substruts still functional on the state and county roads in Wyoming. With a simple span of 175 feet, it i More
Significance: The site was the location of the Union Pacific Transcontinental Railroad snowshed construction plant. The plant was built after the unusually severe blizzards during the winter of 1916-17 that ne More
Significance: The site was the location of the Union Pacific Transcontinental Railroad snowshed construction plant. The plant was built after the unusually severe blizzards during the winter of 1916-17 that ne More
Significance: The site was the location of the Union Pacific Transcontinental Railroad snowshed construction plant. The plant was built after the unusually severe blizzards during the winter of 1916-17 that ne More
Significance: The site was the location of the Union Pacific Transcontinental Railroad snowshed construction plant. The plant was built after the unusually severe blizzards during the winter of 1916-17 that ne More
Significance: The site was the location of the Union Pacific Transcontinental Railroad snowshed construction plant. The plant was built after the unusually severe blizzards during the winter of 1916-17 that ne More
Significance: The site was the location of the Union Pacific Transcontinental Railroad snowshed construction plant. The plant was built after the unusually severe blizzards during the winter of 1916-17 that ne More
Significance: The site was the location of the Union Pacific Transcontinental Railroad snowshed construction plant. The plant was built after the unusually severe blizzards during the winter of 1916-17 that ne More
Significance: The site was the location of the Union Pacific Transcontinental Railroad snowshed construction plant. The plant was built after the unusually severe blizzards during the winter of 1916-17 that ne More
Significance: The site was the location of the Union Pacific Transcontinental Railroad snowshed construction plant. The plant was built after the unusually severe blizzards during the winter of 1916-17 that ne More
Significance: The site was the location of the Union Pacific Transcontinental Railroad snowshed construction plant. The plant was built after the unusually severe blizzards during the winter of 1916-17 that ne More
Significance: The site was the location of the Union Pacific Transcontinental Railroad snowshed construction plant. The plant was built after the unusually severe blizzards during the winter of 1916-17 that ne More
Significance: The site was the location of the Union Pacific Transcontinental Railroad snowshed construction plant. The plant was built after the unusually severe blizzards during the winter of 1916-17 that ne More
Significance: The site was the location of the Union Pacific Transcontinental Railroad snowshed construction plant. The plant was built after the unusually severe blizzards during the winter of 1916-17 that ne More