Big Chickies Bridge, Spanning Big Chickies Creek, Lancaster Junction, ...
Significance: The tied-through reinforced concrete arch Big Chickies Bridge, built in 1916, is a historically and technologically significant early and rare example in the Commonwealth of Pennsylvania of a rain... More
Old Harvard Street Bridge, Spanning Rock Creek at National Zoological ...
Significance: This was the largest of the several Melan-arch bridges built in Rock Creek park in the first years of the twentieth century. Its Neoclasscial detailing differentiates the Old Harvard Street Bridg... More
Big Chickies Bridge, Spanning Big Chickies Creek, Lancaster Junction, ...
Significance: The tied-through reinforced concrete arch Big Chickies Bridge, built in 1916, is a historically and technologically significant early and rare example in the Commonwealth of Pennsylvania of a rain... More
Rustic Bridge, NPS Route No. 13 spanning Crum Elbow Creek, Hyde Park, ...
Significance: The Rustic Bridge is an example of the Melan arch system of concrete construction, and as such is an example of the reinforced-concrete bridge systems introduced in the U.S. in the late nineteenth... More
Rustic Bridge, NPS Route No. 13 spanning Crum Elbow Creek, Hyde Park, ...
Significance: The Rustic Bridge is an example of the Melan arch system of concrete construction, and as such is an example of the reinforced-concrete bridge systems introduced in the U.S. in the late nineteenth... More
Canal Road Bridge, Canal Road spanning Delaware Canal Diversion, Locks...
Significance: The Canal Road Bridge is the earliest reinforced concrete deck arch bridge in the Commonwealth of Pennsylvania. Constructed over the head race leading to an early hydroelectric power station, it ... More
Lafayette-Spring Street Bridge, Lafayette & Spring Street, spanning Os...
Significance: An example of early twentieth-century reinforced concrete construction using the "Melan-von Emperger" systems of steel reinforcement. The western two spans were constructed as part of a grade cro... More
Old Harvard Street Bridge, Spanning Rock Creek at National Zoological ...
Significance: This was the largest of the several Melan-arch bridges built in Rock Creek park in the first years of the twentieth century. Its Neoclasscial detailing differentiates the Old Harvard Street Bridg... More
Weaverland Bridge, Quarry Road spanning Conestoga Creek, Terre Hill, L...
Significance: The tied-through reinforced concrete arch Weaverland Bridge, built in 1916m, is a historically and technologically significant early and rare example in the State of Pennsylvania of a rainbow type... More
Canal Road Bridge, Canal Road spanning Delaware Canal Diversion, Locks...
Significance: The Canal Road Bridge is the earliest reinforced concrete deck arch bridge in the Commonwealth of Pennsylvania. Constructed over the head race leading to an early hydroelectric power station, it ... More
Old Harvard Street Bridge, Spanning Rock Creek at National Zoological ...
Significance: This was the largest of the several Melan-arch bridges built in Rock Creek park in the first years of the twentieth century. Its Neoclasscial detailing differentiates the Old Harvard Street Bridg... More
Weaverland Bridge, Quarry Road spanning Conestoga Creek, Terre Hill, L...
Significance: The tied-through reinforced concrete arch Weaverland Bridge, built in 1916m, is a historically and technologically significant early and rare example in the State of Pennsylvania of a rainbow type... More
White Bridge, Spanning Crum Elbow Creek, Hyde Park, Dutchess County, N...
Significance: The White Bridge is one of the first Melan arch bridges built in the United States, and as such is an example of one of the first reinforced-concrete bridge systems introduced in the U.S. in the l... More
Big Chickies Bridge, Spanning Big Chickies Creek, Lancaster Junction, ...
Significance: The tied-through reinforced concrete arch Big Chickies Bridge, built in 1916, is a historically and technologically significant early and rare example in the Commonwealth of Pennsylvania of a rain... More
White Bridge, Spanning Crum Elbow Creek, Hyde Park, Dutchess County, N...
Significance: The White Bridge is one of the first Melan arch bridges built in the United States, and as such is an example of one of the first reinforced-concrete bridge systems introduced in the U.S. in the l... More
Lafayette-Spring Street Bridge, Lafayette & Spring Street, spanning Os...
Significance: An example of early twentieth-century reinforced concrete construction using the "Melan-von Emperger" systems of steel reinforcement. The western two spans were constructed as part of a grade cro... More
Rustic Bridge, NPS Route No. 13 spanning Crum Elbow Creek, Hyde Park, ...
Significance: The Rustic Bridge is an example of the Melan arch system of concrete construction, and as such is an example of the reinforced-concrete bridge systems introduced in the U.S. in the late nineteenth... More
Weaverland Bridge, Quarry Road spanning Conestoga Creek, Terre Hill, L...
Significance: The tied-through reinforced concrete arch Weaverland Bridge, built in 1916m, is a historically and technologically significant early and rare example in the State of Pennsylvania of a rainbow type... More
Weaverland Bridge, Quarry Road spanning Conestoga Creek, Terre Hill, L...
Significance: The tied-through reinforced concrete arch Weaverland Bridge, built in 1916m, is a historically and technologically significant early and rare example in the State of Pennsylvania of a rainbow type... More
White Bridge, Spanning Crum Elbow Creek, Hyde Park, Dutchess County, N...
Significance: The White Bridge is one of the first Melan arch bridges built in the United States, and as such is an example of one of the first reinforced-concrete bridge systems introduced in the U.S. in the l... More
Big Chickies Bridge, Spanning Big Chickies Creek, Lancaster Junction, ...
Significance: The tied-through reinforced concrete arch Big Chickies Bridge, built in 1916, is a historically and technologically significant early and rare example in the Commonwealth of Pennsylvania of a rain... More
Rustic Bridge, NPS Route No. 13 spanning Crum Elbow Creek, Hyde Park, ...
Significance: The Rustic Bridge is an example of the Melan arch system of concrete construction, and as such is an example of the reinforced-concrete bridge systems introduced in the U.S. in the late nineteenth... More
Weaverland Bridge, Quarry Road spanning Conestoga Creek, Terre Hill, L...
Significance: The tied-through reinforced concrete arch Weaverland Bridge, built in 1916m, is a historically and technologically significant early and rare example in the State of Pennsylvania of a rainbow type... More
Weaverland Bridge, Quarry Road spanning Conestoga Creek, Terre Hill, L...
Significance: The tied-through reinforced concrete arch Weaverland Bridge, built in 1916m, is a historically and technologically significant early and rare example in the State of Pennsylvania of a rainbow type... More
Rustic Bridge, NPS Route No. 13 spanning Crum Elbow Creek, Hyde Park, ...
Significance: The Rustic Bridge is an example of the Melan arch system of concrete construction, and as such is an example of the reinforced-concrete bridge systems introduced in the U.S. in the late nineteenth... More
Weaverland Bridge, Quarry Road spanning Conestoga Creek, Terre Hill, L...
Significance: The tied-through reinforced concrete arch Weaverland Bridge, built in 1916m, is a historically and technologically significant early and rare example in the State of Pennsylvania of a rainbow type... More
Weaverland Bridge, Quarry Road spanning Conestoga Creek, Terre Hill, L...
Significance: The tied-through reinforced concrete arch Weaverland Bridge, built in 1916m, is a historically and technologically significant early and rare example in the State of Pennsylvania of a rainbow type... More
Canal Road Bridge, Canal Road spanning Delaware Canal Diversion, Locks...
Significance: The Canal Road Bridge is the earliest reinforced concrete deck arch bridge in the Commonwealth of Pennsylvania. Constructed over the head race leading to an early hydroelectric power station, it ... More
Old Harvard Street Bridge, Spanning Rock Creek at National Zoological ...
Significance: This was the largest of the several Melan-arch bridges built in Rock Creek park in the first years of the twentieth century. Its Neoclasscial detailing differentiates the Old Harvard Street Bridg... More
Weaverland Bridge, Quarry Road spanning Conestoga Creek, Terre Hill, L...
Significance: The tied-through reinforced concrete arch Weaverland Bridge, built in 1916m, is a historically and technologically significant early and rare example in the State of Pennsylvania of a rainbow type... More
White Bridge, Spanning Crum Elbow Creek, Hyde Park, Dutchess County, N...
Significance: The White Bridge is one of the first Melan arch bridges built in the United States, and as such is an example of one of the first reinforced-concrete bridge systems introduced in the U.S. in the l... More
Lafayette-Spring Street Bridge, Lafayette & Spring Street, spanning Os...
Significance: An example of early twentieth-century reinforced concrete construction using the "Melan-von Emperger" systems of steel reinforcement. The western two spans were constructed as part of a grade cro... More
Big Chickies Bridge, Spanning Big Chickies Creek, Lancaster Junction, ...
Significance: The tied-through reinforced concrete arch Big Chickies Bridge, built in 1916, is a historically and technologically significant early and rare example in the Commonwealth of Pennsylvania of a rain... More
Weaverland Bridge, Quarry Road spanning Conestoga Creek, Terre Hill, L...
Significance: The tied-through reinforced concrete arch Weaverland Bridge, built in 1916m, is a historically and technologically significant early and rare example in the State of Pennsylvania of a rainbow type... More
White Bridge, Spanning Crum Elbow Creek, Hyde Park, Dutchess County, N...
Significance: The White Bridge is one of the first Melan arch bridges built in the United States, and as such is an example of one of the first reinforced-concrete bridge systems introduced in the U.S. in the l... More
White Bridge, Spanning Crum Elbow Creek, Hyde Park, Dutchess County, N...
Significance: The White Bridge is one of the first Melan arch bridges built in the United States, and as such is an example of one of the first reinforced-concrete bridge systems introduced in the U.S. in the l... More
Canal Road Bridge, Canal Road spanning Delaware Canal Diversion, Locks...
Significance: The Canal Road Bridge is the earliest reinforced concrete deck arch bridge in the Commonwealth of Pennsylvania. Constructed over the head race leading to an early hydroelectric power station, it ... More
White Bridge, Spanning Crum Elbow Creek, Hyde Park, Dutchess County, N...
Significance: The White Bridge is one of the first Melan arch bridges built in the United States, and as such is an example of one of the first reinforced-concrete bridge systems introduced in the U.S. in the l... More
Weaverland Bridge, Quarry Road spanning Conestoga Creek, Terre Hill, L...
Significance: The tied-through reinforced concrete arch Weaverland Bridge, built in 1916m, is a historically and technologically significant early and rare example in the State of Pennsylvania of a rainbow type... More
Old Harvard Street Bridge, Spanning Rock Creek at National Zoological ...
Significance: This was the largest of the several Melan-arch bridges built in Rock Creek park in the first years of the twentieth century. Its Neoclasscial detailing differentiates the Old Harvard Street Bridg... More
Lafayette-Spring Street Bridge, Lafayette & Spring Street, spanning Os...
Significance: An example of early twentieth-century reinforced concrete construction using the "Melan-von Emperger" systems of steel reinforcement. The western two spans were constructed as part of a grade cro... More