New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
Maclay's Mill Twin Bridge (East & West), Spanning Conodoguinet Creek a...
Significance: The bridges are outstanding examples of surviving stone arch bridges constructed by a 19th century designer craftsperson. Before the appearance of professional engineers and architects during the ... More
Maclay's Mill Twin Bridge (East & West), Spanning Conodoguinet Creek a...
Significance: The bridges are outstanding examples of surviving stone arch bridges constructed by a 19th century designer craftsperson. Before the appearance of professional engineers and architects during the ... More
Lake Whitney Water Filtration Plant, Lake Whitney Dam, East side of Wh...
Significance: The site offers an interesting view of water power history and development. A dam existed at a nearby site as early as 1798 and provided water to power a grist mill. The dam has undergone severa... More
Lake Whitney Water Filtration Plant, Armory Street Pumphouse, North si...
Significance: This pump station represents a novel engineering solution to a problem. Reduced water supplies forced partial conversion to a more efficient pumping system. The station was originally built to s... More
Lake Whitney Water Filtration Plant, Filtration Plant, South side of A...
Significance: Use of the slow sand filtration process for purifying water dates back to a plant in Paisley, Scotland which was built in 1804. The first United States plant was built in Louisville, Kentucky in ... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
Lake Whitney Water Filtration Plant, Lake Whitney Dam, East side of Wh...
Significance: The site offers an interesting view of water power history and development. A dam existed at a nearby site as early as 1798 and provided water to power a grist mill. The dam has undergone severa... More
Lake Whitney Water Filtration Plant, Filtration Plant, South side of A...
Significance: Use of the slow sand filtration process for purifying water dates back to a plant in Paisley, Scotland which was built in 1804. The first United States plant was built in Louisville, Kentucky in ... More
Lake Whitney Water Filtration Plant, Filtration Plant, South side of A...
Significance: Use of the slow sand filtration process for purifying water dates back to a plant in Paisley, Scotland which was built in 1804. The first United States plant was built in Louisville, Kentucky in ... More
Lake Whitney Water Filtration Plant, Filtration Plant, South side of A...
Significance: Use of the slow sand filtration process for purifying water dates back to a plant in Paisley, Scotland which was built in 1804. The first United States plant was built in Louisville, Kentucky in ... More
Lake Whitney Water Filtration Plant, Filtration Plant, South side of A...
Significance: Use of the slow sand filtration process for purifying water dates back to a plant in Paisley, Scotland which was built in 1804. The first United States plant was built in Louisville, Kentucky in ... More
Lake Whitney Water Filtration Plant, Filtration Plant, South side of A...
Significance: Use of the slow sand filtration process for purifying water dates back to a plant in Paisley, Scotland which was built in 1804. The first United States plant was built in Louisville, Kentucky in ... More
McConnell's Mill Bridge, Spanning Slippery Rock Creek at McConnell's M...
Significance: One of 4 extant Howe-truss covered bridges in Pennsylvania. It is the longest of these that has not been completely rebuilt. Erected originally to transport cargo from a grist mill, the bridge sti... More
McConnell's Mill Bridge, Spanning Slippery Rock Creek at McConnell's M...
Significance: One of 4 extant Howe-truss covered bridges in Pennsylvania. It is the longest of these that has not been completely rebuilt. Erected originally to transport cargo from a grist mill, the bridge sti... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
Maclay's Mill Twin Bridge (East & West), Spanning Conodoguinet Creek a...
Significance: The bridges are outstanding examples of surviving stone arch bridges constructed by a 19th century designer craftsperson. Before the appearance of professional engineers and architects during the ... More
Lake Whitney Water Filtration Plant, Filtration Plant, South side of A...
Significance: Use of the slow sand filtration process for purifying water dates back to a plant in Paisley, Scotland which was built in 1804. The first United States plant was built in Louisville, Kentucky in ... More
Lake Whitney Water Filtration Plant, Filtration Plant, South side of A...
Significance: Use of the slow sand filtration process for purifying water dates back to a plant in Paisley, Scotland which was built in 1804. The first United States plant was built in Louisville, Kentucky in ... More
Lake Whitney Water Filtration Plant, Filtration Plant, South side of A...
Significance: Use of the slow sand filtration process for purifying water dates back to a plant in Paisley, Scotland which was built in 1804. The first United States plant was built in Louisville, Kentucky in ... More
McConnell's Mill Bridge, Spanning Slippery Rock Creek at McConnell's M...
Significance: One of 4 extant Howe-truss covered bridges in Pennsylvania. It is the longest of these that has not been completely rebuilt. Erected originally to transport cargo from a grist mill, the bridge sti... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
Maclay's Mill Twin Bridge (East & West), Spanning Conodoguinet Creek a...
Significance: The bridges are outstanding examples of surviving stone arch bridges constructed by a 19th century designer craftsperson. Before the appearance of professional engineers and architects during the ... More
Lake Whitney Water Filtration Plant, Lake Whitney Dam, East side of Wh...
Significance: The site offers an interesting view of water power history and development. A dam existed at a nearby site as early as 1798 and provided water to power a grist mill. The dam has undergone severa... More
Lake Whitney Water Filtration Plant, Armory Street Pumphouse, North si...
Significance: This pump station represents a novel engineering solution to a problem. Reduced water supplies forced partial conversion to a more efficient pumping system. The station was originally built to s... More
Lake Whitney Water Filtration Plant, Filtration Plant, South side of A...
Significance: Use of the slow sand filtration process for purifying water dates back to a plant in Paisley, Scotland which was built in 1804. The first United States plant was built in Louisville, Kentucky in ... More
Lake Whitney Water Filtration Plant, Filtration Plant, South side of A...
Significance: Use of the slow sand filtration process for purifying water dates back to a plant in Paisley, Scotland which was built in 1804. The first United States plant was built in Louisville, Kentucky in ... More
Lake Whitney Water Filtration Plant, Filtration Plant, South side of A...
Significance: Use of the slow sand filtration process for purifying water dates back to a plant in Paisley, Scotland which was built in 1804. The first United States plant was built in Louisville, Kentucky in ... More
Lake Whitney Water Filtration Plant, Filtration Plant, South side of A...
Significance: Use of the slow sand filtration process for purifying water dates back to a plant in Paisley, Scotland which was built in 1804. The first United States plant was built in Louisville, Kentucky in ... More
Lake Whitney Water Filtration Plant, Filtration Plant, South side of A...
Significance: Use of the slow sand filtration process for purifying water dates back to a plant in Paisley, Scotland which was built in 1804. The first United States plant was built in Louisville, Kentucky in ... More
Lake Whitney Water Filtration Plant, Filtration Plant, South side of A...
Significance: Use of the slow sand filtration process for purifying water dates back to a plant in Paisley, Scotland which was built in 1804. The first United States plant was built in Louisville, Kentucky in ... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
Maclay's Mill Twin Bridge (East & West), Spanning Conodoguinet Creek a...
Significance: The bridges are outstanding examples of surviving stone arch bridges constructed by a 19th century designer craftsperson. Before the appearance of professional engineers and architects during the ... More
Maclay's Mill Twin Bridge (East & West), Spanning Conodoguinet Creek a...
Significance: The bridges are outstanding examples of surviving stone arch bridges constructed by a 19th century designer craftsperson. Before the appearance of professional engineers and architects during the ... More
Lake Whitney Water Filtration Plant, Filtration Plant, South side of A...
Significance: Use of the slow sand filtration process for purifying water dates back to a plant in Paisley, Scotland which was built in 1804. The first United States plant was built in Louisville, Kentucky in ... More
Lake Whitney Water Filtration Plant, Filtration Plant, South side of A...
Significance: Use of the slow sand filtration process for purifying water dates back to a plant in Paisley, Scotland which was built in 1804. The first United States plant was built in Louisville, Kentucky in ... More
Lake Whitney Water Filtration Plant, Filtration Plant, South side of A...
Significance: Use of the slow sand filtration process for purifying water dates back to a plant in Paisley, Scotland which was built in 1804. The first United States plant was built in Louisville, Kentucky in ... More
Lake Whitney Water Filtration Plant, Filtration Plant, South side of A...
Significance: Use of the slow sand filtration process for purifying water dates back to a plant in Paisley, Scotland which was built in 1804. The first United States plant was built in Louisville, Kentucky in ... More
Lake Whitney Water Filtration Plant, Filtration Plant, South side of A...
Significance: Use of the slow sand filtration process for purifying water dates back to a plant in Paisley, Scotland which was built in 1804. The first United States plant was built in Louisville, Kentucky in ... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
Maclay's Mill Twin Bridge (East & West), Spanning Conodoguinet Creek a...
Significance: The bridges are outstanding examples of surviving stone arch bridges constructed by a 19th century designer craftsperson. Before the appearance of professional engineers and architects during the ... More
Lake Whitney Water Filtration Plant, Lake Whitney Dam, East side of Wh...
Significance: The site offers an interesting view of water power history and development. A dam existed at a nearby site as early as 1798 and provided water to power a grist mill. The dam has undergone severa... More
Lake Whitney Water Filtration Plant, Armory Street Pumphouse, North si...
Significance: This pump station represents a novel engineering solution to a problem. Reduced water supplies forced partial conversion to a more efficient pumping system. The station was originally built to s... More
Lake Whitney Water Filtration Plant, Filtration Plant, South side of A...
Significance: Use of the slow sand filtration process for purifying water dates back to a plant in Paisley, Scotland which was built in 1804. The first United States plant was built in Louisville, Kentucky in ... More
Lake Whitney Water Filtration Plant, Filtration Plant, South side of A...
Significance: Use of the slow sand filtration process for purifying water dates back to a plant in Paisley, Scotland which was built in 1804. The first United States plant was built in Louisville, Kentucky in ... More
Lake Whitney Water Filtration Plant, Filtration Plant, South side of A...
Significance: Use of the slow sand filtration process for purifying water dates back to a plant in Paisley, Scotland which was built in 1804. The first United States plant was built in Louisville, Kentucky in ... More
Lake Whitney Water Filtration Plant, Filtration Plant, South side of A...
Significance: Use of the slow sand filtration process for purifying water dates back to a plant in Paisley, Scotland which was built in 1804. The first United States plant was built in Louisville, Kentucky in ... More
McConnell's Mill Bridge, Spanning Slippery Rock Creek at McConnell's M...
Significance: One of 4 extant Howe-truss covered bridges in Pennsylvania. It is the longest of these that has not been completely rebuilt. Erected originally to transport cargo from a grist mill, the bridge sti... More
McConnell's Mill Bridge, Spanning Slippery Rock Creek at McConnell's M...
Significance: One of 4 extant Howe-truss covered bridges in Pennsylvania. It is the longest of these that has not been completely rebuilt. Erected originally to transport cargo from a grist mill, the bridge sti... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
Lake Whitney Water Filtration Plant, Lake Whitney Dam, East side of Wh...
Significance: The site offers an interesting view of water power history and development. A dam existed at a nearby site as early as 1798 and provided water to power a grist mill. The dam has undergone severa... More
Lake Whitney Water Filtration Plant, Armory Street Pumphouse, North si...
Significance: This pump station represents a novel engineering solution to a problem. Reduced water supplies forced partial conversion to a more efficient pumping system. The station was originally built to s... More
Lake Whitney Water Filtration Plant, Armory Street Pumphouse, North si...
Significance: This pump station represents a novel engineering solution to a problem. Reduced water supplies forced partial conversion to a more efficient pumping system. The station was originally built to s... More
Lake Whitney Water Filtration Plant, Filtration Plant, South side of A...
Significance: Use of the slow sand filtration process for purifying water dates back to a plant in Paisley, Scotland which was built in 1804. The first United States plant was built in Louisville, Kentucky in ... More
Lake Whitney Water Filtration Plant, Filtration Plant, South side of A...
Significance: Use of the slow sand filtration process for purifying water dates back to a plant in Paisley, Scotland which was built in 1804. The first United States plant was built in Louisville, Kentucky in ... More
Lake Whitney Water Filtration Plant, Filtration Plant, South side of A...
Significance: Use of the slow sand filtration process for purifying water dates back to a plant in Paisley, Scotland which was built in 1804. The first United States plant was built in Louisville, Kentucky in ... More
McConnell's Mill Bridge, Spanning Slippery Rock Creek at McConnell's M...
Significance: One of 4 extant Howe-truss covered bridges in Pennsylvania. It is the longest of these that has not been completely rebuilt. Erected originally to transport cargo from a grist mill, the bridge sti... More
McConnell's Mill Bridge, Spanning Slippery Rock Creek at McConnell's M...
Significance: One of 4 extant Howe-truss covered bridges in Pennsylvania. It is the longest of these that has not been completely rebuilt. Erected originally to transport cargo from a grist mill, the bridge sti... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
Maclay's Mill Twin Bridge (East & West), Spanning Conodoguinet Creek a...
Significance: The bridges are outstanding examples of surviving stone arch bridges constructed by a 19th century designer craftsperson. Before the appearance of professional engineers and architects during the ... More
Lake Whitney Water Filtration Plant, Armory Street Pumphouse, North si...
Significance: This pump station represents a novel engineering solution to a problem. Reduced water supplies forced partial conversion to a more efficient pumping system. The station was originally built to s... More
Lake Whitney Water Filtration Plant, Armory Street Pumphouse, North si...
Significance: This pump station represents a novel engineering solution to a problem. Reduced water supplies forced partial conversion to a more efficient pumping system. The station was originally built to s... More
Lake Whitney Water Filtration Plant, Armory Street Pumphouse, North si...
Significance: This pump station represents a novel engineering solution to a problem. Reduced water supplies forced partial conversion to a more efficient pumping system. The station was originally built to s... More
Lake Whitney Water Filtration Plant, Armory Street Pumphouse, North si...
Significance: This pump station represents a novel engineering solution to a problem. Reduced water supplies forced partial conversion to a more efficient pumping system. The station was originally built to s... More
Lake Whitney Water Filtration Plant, Filtration Plant, South side of A...
Significance: Use of the slow sand filtration process for purifying water dates back to a plant in Paisley, Scotland which was built in 1804. The first United States plant was built in Louisville, Kentucky in ... More
Lake Whitney Water Filtration Plant, Filtration Plant, South side of A...
Significance: Use of the slow sand filtration process for purifying water dates back to a plant in Paisley, Scotland which was built in 1804. The first United States plant was built in Louisville, Kentucky in ... More
Lake Whitney Water Filtration Plant, Filtration Plant, South side of A...
Significance: Use of the slow sand filtration process for purifying water dates back to a plant in Paisley, Scotland which was built in 1804. The first United States plant was built in Louisville, Kentucky in ... More
Lake Whitney Water Filtration Plant, Filtration Plant, South side of A...
Significance: Use of the slow sand filtration process for purifying water dates back to a plant in Paisley, Scotland which was built in 1804. The first United States plant was built in Louisville, Kentucky in ... More
Lake Whitney Water Filtration Plant, Filtration Plant, South side of A...
Significance: Use of the slow sand filtration process for purifying water dates back to a plant in Paisley, Scotland which was built in 1804. The first United States plant was built in Louisville, Kentucky in ... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More
New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Sh...
Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad... More