Sixteenth Street Bridge, Spanning Piney Branch Parkway, Washington, Di...
Significance: This bridge was the first parabolic arch constructed in the United States. Its concrete masonry, faced with sandstone and pebble aggregate, conforms with the model for park crossings established ... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Sixteenth Street Bridge, Spanning Piney Branch Parkway, Washington, Di...
Significance: This bridge was the first parabolic arch constructed in the United States. Its concrete masonry, faced with sandstone and pebble aggregate, conforms with the model for park crossings established ... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Sixteenth Street Bridge, Spanning Piney Branch Parkway, Washington, Di...
Significance: This bridge was the first parabolic arch constructed in the United States. Its concrete masonry, faced with sandstone and pebble aggregate, conforms with the model for park crossings established ... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Sixteenth Street Bridge, Spanning Piney Branch Parkway, Washington, Di...
Significance: This bridge was the first parabolic arch constructed in the United States. Its concrete masonry, faced with sandstone and pebble aggregate, conforms with the model for park crossings established ... More
Sixteenth Street Bridge, Spanning Piney Branch Parkway, Washington, Di...
Significance: This bridge was the first parabolic arch constructed in the United States. Its concrete masonry, faced with sandstone and pebble aggregate, conforms with the model for park crossings established ... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Sixteenth Street Bridge, Spanning Piney Branch Parkway, Washington, Di...
Significance: This bridge was the first parabolic arch constructed in the United States. Its concrete masonry, faced with sandstone and pebble aggregate, conforms with the model for park crossings established ... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Sixteenth Street Bridge, Spanning Piney Branch Parkway, Washington, Di...
Significance: This bridge was the first parabolic arch constructed in the United States. Its concrete masonry, faced with sandstone and pebble aggregate, conforms with the model for park crossings established ... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... 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
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
U.S. Army Reserve centers, Washington D.C. and vicinity /
Base map "Prepared under the direction of the District of Columbia Department of Highways and Traffic, Office of Planning and Programming ... by Air Survey Corporation, 1964." Includes text, street address dire... 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
Sixteenth Street Bridge, Spanning Piney Branch Parkway, Washington, Di...
Significance: This bridge was the first parabolic arch constructed in the United States. Its concrete masonry, faced with sandstone and pebble aggregate, conforms with the model for park crossings established ... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... 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
Sixteenth Street Bridge, Spanning Piney Branch Parkway, Washington, Di...
Significance: This bridge was the first parabolic arch constructed in the United States. Its concrete masonry, faced with sandstone and pebble aggregate, conforms with the model for park crossings established ... More
Sixteenth Street Bridge, Spanning Piney Branch Parkway, Washington, Di...
Significance: This bridge was the first parabolic arch constructed in the United States. Its concrete masonry, faced with sandstone and pebble aggregate, conforms with the model for park crossings established ... More
Sixteenth Street Bridge, Spanning Piney Branch Parkway, Washington, Di...
Significance: This bridge was the first parabolic arch constructed in the United States. Its concrete masonry, faced with sandstone and pebble aggregate, conforms with the model for park crossings established ... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... 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
Sixteenth Street Bridge, Spanning Piney Branch Parkway, Washington, Di...
Significance: This bridge was the first parabolic arch constructed in the United States. Its concrete masonry, faced with sandstone and pebble aggregate, conforms with the model for park crossings established ... More
Sixteenth Street Bridge, Spanning Piney Branch Parkway, Washington, Di...
Significance: This bridge was the first parabolic arch constructed in the United States. Its concrete masonry, faced with sandstone and pebble aggregate, conforms with the model for park crossings established ... More
Sixteenth Street Bridge, Spanning Piney Branch Parkway, Washington, Di...
Significance: This bridge was the first parabolic arch constructed in the United States. Its concrete masonry, faced with sandstone and pebble aggregate, conforms with the model for park crossings established ... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Sixteenth Street Bridge, Spanning Piney Branch Parkway, Washington, Di...
Significance: This bridge was the first parabolic arch constructed in the United States. Its concrete masonry, faced with sandstone and pebble aggregate, conforms with the model for park crossings established ... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Sixteenth Street Bridge, Spanning Piney Branch Parkway, Washington, Di...
Significance: This bridge was the first parabolic arch constructed in the United States. Its concrete masonry, faced with sandstone and pebble aggregate, conforms with the model for park crossings established ... 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
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More