Van Duzen River Bridge, Spanning Van Duzen River at CA State Highway 1...
Significance: The Van Duzen River Bridge, also known as the Alton Bridge, was determined eligible for listing in the National Register of Historic Places in 1986. It represents a transitional design in the evo... More
Van Duzen River Bridge, Spanning Van Duzen River at CA State Highway 1...
Significance: The Van Duzen River Bridge, also known as the Alton Bridge, was determined eligible for listing in the National Register of Historic Places in 1986. It represents a transitional design in the evo... More
Chicago & Alton Railroad Bridge, Spanning South Branch of Chicago Rive...
Significance: The Chicago & Alton Railroad bridge was the first Page bascule erected for railroad use. Patented by John W. Page, a Chicago engineer, the Page bascule was not as extensively built as other paten... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26R, Alton,...
Significance: ...Lock and Dam NO. 26R constitute the first replacements of an original element of the Nine-Foot Channel Project. The new installation will replace Lock and Dam No. 26, located two miles upstrea... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26R, Alton,...
Significance: ...Lock and Dam NO. 26R constitute the first replacements of an original element of the Nine-Foot Channel Project. The new installation will replace Lock and Dam No. 26, located two miles upstrea... More
Alton Bridge, Spanning Mississippi River between IL & MO, Alton, Madis...
See also HAER NE-2 for additional documentation. Survey number: HAER IL-21 Building/structure dates: 1894 Initial Construction
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26, Alton, ...
Significance: The Upper Mississippi River Nine-Foot Channel Project represents one of the largest and most ambitious river improvement projects ever constructed in the United States. The project's origins date... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26, Alton, ...
Significance: The Upper Mississippi River Nine-Foot Channel Project represents one of the largest and most ambitious river improvement projects ever constructed in the United States. The project's origins date... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26, Alton, ...
Significance: The Upper Mississippi River Nine-Foot Channel Project represents one of the largest and most ambitious river improvement projects ever constructed in the United States. The project's origins date... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26, Alton, ...
Significance: The Upper Mississippi River Nine-Foot Channel Project represents one of the largest and most ambitious river improvement projects ever constructed in the United States. The project's origins date... More
Northeast Railroad Corridor, Amtrak route between CT & MA state lines,...
Survey number: HAER RI-19 Public domain photograph - historical image of Connecticut, United States, free to use, no copyright restrictions image - Picryl description Public domain photograph - historical im... More
Northeast Railroad Corridor, Amtrak route between CT & MA state lines,...
Survey number: HAER RI-19 Public domain photograph of railway map, railroad tracks, free to use, no copyright restrictions image - Picryl description
Van Duzen River Bridge, Spanning Van Duzen River at CA State Highway 1...
Significance: The Van Duzen River Bridge, also known as the Alton Bridge, was determined eligible for listing in the National Register of Historic Places in 1986. It represents a transitional design in the evo... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26R, Alton,...
Significance: ...Lock and Dam NO. 26R constitute the first replacements of an original element of the Nine-Foot Channel Project. The new installation will replace Lock and Dam No. 26, located two miles upstrea... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26R, Alton,...
Significance: ...Lock and Dam NO. 26R constitute the first replacements of an original element of the Nine-Foot Channel Project. The new installation will replace Lock and Dam No. 26, located two miles upstrea... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26R, Alton,...
Significance: ...Lock and Dam NO. 26R constitute the first replacements of an original element of the Nine-Foot Channel Project. The new installation will replace Lock and Dam No. 26, located two miles upstrea... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26R, Alton,...
Significance: ...Lock and Dam NO. 26R constitute the first replacements of an original element of the Nine-Foot Channel Project. The new installation will replace Lock and Dam No. 26, located two miles upstrea... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26R, Alton,...
Significance: ...Lock and Dam NO. 26R constitute the first replacements of an original element of the Nine-Foot Channel Project. The new installation will replace Lock and Dam No. 26, located two miles upstrea... More
Alton Bridge, Spanning Mississippi River between IL & MO, Alton, Madis...
See also HAER NE-2 for additional documentation. Survey number: HAER IL-21 Building/structure dates: 1894 Initial Construction
Alton Bridge, Spanning Mississippi River between IL & MO, Alton, Madis...
See also HAER NE-2 for additional documentation. Survey number: HAER IL-21 Building/structure dates: 1894 Initial Construction
Alton Bridge, Spanning Mississippi River between IL & MO, Alton, Madis...
See also HAER NE-2 for additional documentation. Survey number: HAER IL-21 Building/structure dates: 1894 Initial Construction
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26, Alton, ...
Significance: The Upper Mississippi River Nine-Foot Channel Project represents one of the largest and most ambitious river improvement projects ever constructed in the United States. The project's origins date... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26, Alton, ...
Significance: The Upper Mississippi River Nine-Foot Channel Project represents one of the largest and most ambitious river improvement projects ever constructed in the United States. The project's origins date... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26, Alton, ...
Significance: The Upper Mississippi River Nine-Foot Channel Project represents one of the largest and most ambitious river improvement projects ever constructed in the United States. The project's origins date... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26, Alton, ...
Significance: The Upper Mississippi River Nine-Foot Channel Project represents one of the largest and most ambitious river improvement projects ever constructed in the United States. The project's origins date... More
Mill Creek Bridge, Mill Creek, Alton, Crawford County, IN
Significance: A pin-connected Pratt through truss with auxiliary horizontal bracing between vertical members. This bracing is similar to that found on many Pratt trusses built by the Wrought Iron Bridge Co. of... More
Mill Creek Bridge, Mill Creek, Alton, Crawford County, IN
Significance: A pin-connected Pratt through truss with auxiliary horizontal bracing between vertical members. This bracing is similar to that found on many Pratt trusses built by the Wrought Iron Bridge Co. of... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26R, Alton,...
Significance: ...Lock and Dam NO. 26R constitute the first replacements of an original element of the Nine-Foot Channel Project. The new installation will replace Lock and Dam No. 26, located two miles upstrea... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26R, Alton,...
Significance: ...Lock and Dam NO. 26R constitute the first replacements of an original element of the Nine-Foot Channel Project. The new installation will replace Lock and Dam No. 26, located two miles upstrea... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26R, Alton,...
Significance: ...Lock and Dam NO. 26R constitute the first replacements of an original element of the Nine-Foot Channel Project. The new installation will replace Lock and Dam No. 26, located two miles upstrea... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26R, Alton,...
Significance: ...Lock and Dam NO. 26R constitute the first replacements of an original element of the Nine-Foot Channel Project. The new installation will replace Lock and Dam No. 26, located two miles upstrea... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26R, Alton,...
Significance: ...Lock and Dam NO. 26R constitute the first replacements of an original element of the Nine-Foot Channel Project. The new installation will replace Lock and Dam No. 26, located two miles upstrea... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26R, Alton,...
Significance: ...Lock and Dam NO. 26R constitute the first replacements of an original element of the Nine-Foot Channel Project. The new installation will replace Lock and Dam No. 26, located two miles upstrea... More
Alton Bridge, Spanning Mississippi River between IL & MO, Alton, Madis...
See also HAER NE-2 for additional documentation. Survey number: HAER IL-21 Building/structure dates: 1894 Initial Construction
Alton Bridge, Spanning Mississippi River between IL & MO, Alton, Madis...
See also HAER NE-2 for additional documentation. Survey number: HAER IL-21 Building/structure dates: 1894 Initial Construction
Alton Bridge, Spanning Mississippi River between IL & MO, Alton, Madis...
See also HAER NE-2 for additional documentation. Survey number: HAER IL-21 Building/structure dates: 1894 Initial Construction
Alton Bridge, Spanning Mississippi River between IL & MO, Alton, Madis...
See also HAER NE-2 for additional documentation. Survey number: HAER IL-21 Building/structure dates: 1894 Initial Construction
Alton Bridge, Spanning Mississippi River between IL & MO, Alton, Madis...
See also HAER NE-2 for additional documentation. Survey number: HAER IL-21 Building/structure dates: 1894 Initial Construction
Alton Bridge, Spanning Mississippi River between IL & MO, Alton, Madis...
See also HAER NE-2 for additional documentation. Survey number: HAER IL-21 Building/structure dates: 1894 Initial Construction
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26, Alton, ...
Significance: The Upper Mississippi River Nine-Foot Channel Project represents one of the largest and most ambitious river improvement projects ever constructed in the United States. The project's origins date... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26, Alton, ...
Significance: The Upper Mississippi River Nine-Foot Channel Project represents one of the largest and most ambitious river improvement projects ever constructed in the United States. The project's origins date... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26, Alton, ...
Significance: The Upper Mississippi River Nine-Foot Channel Project represents one of the largest and most ambitious river improvement projects ever constructed in the United States. The project's origins date... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26, Alton, ...
Significance: The Upper Mississippi River Nine-Foot Channel Project represents one of the largest and most ambitious river improvement projects ever constructed in the United States. The project's origins date... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26, Alton, ...
Significance: The Upper Mississippi River Nine-Foot Channel Project represents one of the largest and most ambitious river improvement projects ever constructed in the United States. The project's origins date... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26, Alton, ...
Significance: The Upper Mississippi River Nine-Foot Channel Project represents one of the largest and most ambitious river improvement projects ever constructed in the United States. The project's origins date... More
Northeast Railroad Corridor, Amtrak route between CT & MA state lines,...
Survey number: HAER RI-19 Public domain photograph - historical image of Connecticut, United States, free to use, no copyright restrictions image - Picryl description
Northeast Railroad Corridor, Amtrak route between CT & MA state lines,...
Survey number: HAER RI-19 Public domain photograph of train tracks, railroad, free to use, no copyright restrictions image - Picryl description
Northeast Railroad Corridor, Amtrak route between CT & MA state lines,...
Survey number: HAER RI-19 Public domain photograph - historical image of Connecticut, United States, free to use, no copyright restrictions image - Picryl description
Van Duzen River Bridge, Spanning Van Duzen River at CA State Highway 1...
Significance: The Van Duzen River Bridge, also known as the Alton Bridge, was determined eligible for listing in the National Register of Historic Places in 1986. It represents a transitional design in the evo... More
Van Duzen River Bridge, Spanning Van Duzen River at CA State Highway 1...
Significance: The Van Duzen River Bridge, also known as the Alton Bridge, was determined eligible for listing in the National Register of Historic Places in 1986. It represents a transitional design in the evo... More
Van Duzen River Bridge, Spanning Van Duzen River at CA State Highway 1...
Significance: The Van Duzen River Bridge, also known as the Alton Bridge, was determined eligible for listing in the National Register of Historic Places in 1986. It represents a transitional design in the evo... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26R, Alton,...
Significance: ...Lock and Dam NO. 26R constitute the first replacements of an original element of the Nine-Foot Channel Project. The new installation will replace Lock and Dam No. 26, located two miles upstrea... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26R, Alton,...
Significance: ...Lock and Dam NO. 26R constitute the first replacements of an original element of the Nine-Foot Channel Project. The new installation will replace Lock and Dam No. 26, located two miles upstrea... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26R, Alton,...
Significance: ...Lock and Dam NO. 26R constitute the first replacements of an original element of the Nine-Foot Channel Project. The new installation will replace Lock and Dam No. 26, located two miles upstrea... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26, Alton, ...
Significance: The Upper Mississippi River Nine-Foot Channel Project represents one of the largest and most ambitious river improvement projects ever constructed in the United States. The project's origins date... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26, Alton, ...
Significance: The Upper Mississippi River Nine-Foot Channel Project represents one of the largest and most ambitious river improvement projects ever constructed in the United States. The project's origins date... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26, Alton, ...
Significance: The Upper Mississippi River Nine-Foot Channel Project represents one of the largest and most ambitious river improvement projects ever constructed in the United States. The project's origins date... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26, Alton, ...
Significance: The Upper Mississippi River Nine-Foot Channel Project represents one of the largest and most ambitious river improvement projects ever constructed in the United States. The project's origins date... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26, Alton, ...
Significance: The Upper Mississippi River Nine-Foot Channel Project represents one of the largest and most ambitious river improvement projects ever constructed in the United States. The project's origins date... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26, Alton, ...
Significance: The Upper Mississippi River Nine-Foot Channel Project represents one of the largest and most ambitious river improvement projects ever constructed in the United States. The project's origins date... More
Northeast Railroad Corridor, Amtrak route between CT & MA state lines,...
Survey number: HAER RI-19 Public domain photograph of a city streets, cityscape, urban environment, buildings, free to use, no copyright restrictions image - Picryl description
Northeast Railroad Corridor, Amtrak route between CT & MA state lines,...
Survey number: HAER RI-19 Public domain photograph - historical image of Connecticut, United States, free to use, no copyright restrictions image - Picryl description Public domain photograph - historical im... More
Northeast Railroad Corridor, Amtrak route between CT & MA state lines,...
Survey number: HAER RI-19 Public domain photograph of train depot, railroad, free to use, no copyright restrictions image - Picryl description
Northeast Railroad Corridor, Amtrak route between CT & MA state lines,...
Survey number: HAER RI-19 Public domain photograph - historical image of Connecticut, United States, free to use, no copyright restrictions image - Picryl description Public domain photograph - historical im... More
Van Duzen River Bridge, Spanning Van Duzen River at CA State Highway 1...
Significance: The Van Duzen River Bridge, also known as the Alton Bridge, was determined eligible for listing in the National Register of Historic Places in 1986. It represents a transitional design in the evo... More
Mill Creek Bridge, Mill Creek, Alton, Crawford County, IN
Significance: A pin-connected Pratt through truss with auxiliary horizontal bracing between vertical members. This bracing is similar to that found on many Pratt trusses built by the Wrought Iron Bridge Co. of... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26R, Alton,...
Significance: ...Lock and Dam NO. 26R constitute the first replacements of an original element of the Nine-Foot Channel Project. The new installation will replace Lock and Dam No. 26, located two miles upstrea... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26R, Alton,...
Significance: ...Lock and Dam NO. 26R constitute the first replacements of an original element of the Nine-Foot Channel Project. The new installation will replace Lock and Dam No. 26, located two miles upstrea... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26R, Alton,...
Significance: ...Lock and Dam NO. 26R constitute the first replacements of an original element of the Nine-Foot Channel Project. The new installation will replace Lock and Dam No. 26, located two miles upstrea... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26R, Alton,...
Significance: ...Lock and Dam NO. 26R constitute the first replacements of an original element of the Nine-Foot Channel Project. The new installation will replace Lock and Dam No. 26, located two miles upstrea... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26R, Alton,...
Significance: ...Lock and Dam NO. 26R constitute the first replacements of an original element of the Nine-Foot Channel Project. The new installation will replace Lock and Dam No. 26, located two miles upstrea... More
Alton Bridge, Spanning Mississippi River between IL & MO, Alton, Madis...
See also HAER NE-2 for additional documentation. Survey number: HAER IL-21 Building/structure dates: 1894 Initial Construction
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26, Alton, ...
Significance: The Upper Mississippi River Nine-Foot Channel Project represents one of the largest and most ambitious river improvement projects ever constructed in the United States. The project's origins date... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26, Alton, ...
Significance: The Upper Mississippi River Nine-Foot Channel Project represents one of the largest and most ambitious river improvement projects ever constructed in the United States. The project's origins date... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26, Alton, ...
Significance: The Upper Mississippi River Nine-Foot Channel Project represents one of the largest and most ambitious river improvement projects ever constructed in the United States. The project's origins date... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26, Alton, ...
Significance: The Upper Mississippi River Nine-Foot Channel Project represents one of the largest and most ambitious river improvement projects ever constructed in the United States. The project's origins date... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26, Alton, ...
Significance: The Upper Mississippi River Nine-Foot Channel Project represents one of the largest and most ambitious river improvement projects ever constructed in the United States. The project's origins date... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26, Alton, ...
Significance: The Upper Mississippi River Nine-Foot Channel Project represents one of the largest and most ambitious river improvement projects ever constructed in the United States. The project's origins date... More
Northeast Railroad Corridor, Amtrak route between CT & MA state lines,...
Survey number: HAER RI-19 Public domain photograph of the train tunnel, railroad, train track, free to use, no copyright restrictions image - Picryl description
Northeast Railroad Corridor, Amtrak route between CT & MA state lines,...
Survey number: HAER RI-19 Public domain photograph - historical image of Connecticut, United States, free to use, no copyright restrictions image - Picryl description Public domain photograph - historical im... More
Northeast Railroad Corridor, Amtrak route between CT & MA state lines,...
Survey number: HAER RI-19 Public domain photograph of train tracks, railroad works, free to use, no copyright restrictions image - Picryl description
Northeast Railroad Corridor, Amtrak route between CT & MA state lines,...
Survey number: HAER RI-19 Public domain photograph of train tracks, railroad works, free to use, no copyright restrictions image - Picryl description
Van Duzen River Bridge, Spanning Van Duzen River at CA State Highway 1...
Significance: The Van Duzen River Bridge, also known as the Alton Bridge, was determined eligible for listing in the National Register of Historic Places in 1986. It represents a transitional design in the evo... More
Mill Creek Bridge, Mill Creek, Alton, Crawford County, IN
Significance: A pin-connected Pratt through truss with auxiliary horizontal bracing between vertical members. This bracing is similar to that found on many Pratt trusses built by the Wrought Iron Bridge Co. of... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26R, Alton,...
Significance: ...Lock and Dam NO. 26R constitute the first replacements of an original element of the Nine-Foot Channel Project. The new installation will replace Lock and Dam No. 26, located two miles upstrea... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26R, Alton,...
Significance: ...Lock and Dam NO. 26R constitute the first replacements of an original element of the Nine-Foot Channel Project. The new installation will replace Lock and Dam No. 26, located two miles upstrea... More
Alton Bridge, Spanning Mississippi River between IL & MO, Alton, Madis...
See also HAER NE-2 for additional documentation. Survey number: HAER IL-21 Building/structure dates: 1894 Initial Construction
Alton Bridge, Spanning Mississippi River between IL & MO, Alton, Madis...
See also HAER NE-2 for additional documentation. Survey number: HAER IL-21 Building/structure dates: 1894 Initial Construction
Alton Bridge, Spanning Mississippi River between IL & MO, Alton, Madis...
See also HAER NE-2 for additional documentation. Survey number: HAER IL-21 Building/structure dates: 1894 Initial Construction
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26, Alton, ...
Significance: The Upper Mississippi River Nine-Foot Channel Project represents one of the largest and most ambitious river improvement projects ever constructed in the United States. The project's origins date... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26, Alton, ...
Significance: The Upper Mississippi River Nine-Foot Channel Project represents one of the largest and most ambitious river improvement projects ever constructed in the United States. The project's origins date... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26, Alton, ...
Significance: The Upper Mississippi River Nine-Foot Channel Project represents one of the largest and most ambitious river improvement projects ever constructed in the United States. The project's origins date... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26, Alton, ...
Significance: The Upper Mississippi River Nine-Foot Channel Project represents one of the largest and most ambitious river improvement projects ever constructed in the United States. The project's origins date... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26, Alton, ...
Significance: The Upper Mississippi River Nine-Foot Channel Project represents one of the largest and most ambitious river improvement projects ever constructed in the United States. The project's origins date... More
Northeast Railroad Corridor, Amtrak route between CT & MA state lines,...
Survey number: HAER RI-19 Public domain photograph of train tracks, railroad works, free to use, no copyright restrictions image - Picryl description
Northeast Railroad Corridor, Amtrak route between CT & MA state lines,...
Survey number: HAER RI-19 Public domain photograph of railway map, railroad tracks, free to use, no copyright restrictions image - Picryl description
Northeast Railroad Corridor, Amtrak route between CT & MA state lines,...
Survey number: HAER RI-19 Public domain photograph - historical image of Connecticut, United States, free to use, no copyright restrictions image - Picryl description
Van Duzen River Bridge, Spanning Van Duzen River at CA State Highway 1...
Significance: The Van Duzen River Bridge, also known as the Alton Bridge, was determined eligible for listing in the National Register of Historic Places in 1986. It represents a transitional design in the evo... More
Van Duzen River Bridge, Spanning Van Duzen River at CA State Highway 1...
Significance: The Van Duzen River Bridge, also known as the Alton Bridge, was determined eligible for listing in the National Register of Historic Places in 1986. It represents a transitional design in the evo... More
Mill Creek Bridge, Mill Creek, Alton, Crawford County, IN
Significance: A pin-connected Pratt through truss with auxiliary horizontal bracing between vertical members. This bracing is similar to that found on many Pratt trusses built by the Wrought Iron Bridge Co. of... More