Yellow Mill Bridge, Spanning Yellow Mill Channel at Stratford Avenue, ...
Significance: Constructed in 1927-1929, the Yellow Mill Bridge is a rare and relatively intact example of a bascule highway bridge. Located on a site that has been bridged since the late eighteenth century, th... More
Upper Mississippi River Nine-Foot Channel Project, Lock & Dam No. 24, ...
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 Nine-Foot Channel Project, Lock & Dam No. 24, ...
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
Lady Bird Johnson Park Eastern Cottonwood , Lady Bird Johnson Park, So...
For related documentation, see also HALS VA-12 (Lady Bird Johnson Park 1932 Crabapple), HALS VA-13 (Lady Bird Johnson Park 1932 Ornamental Pear), HALS VA-15 ("Methuselah" Willow Oak), HALS VA-66 (Mount Vernon M... More
Summer Street Bridge, Spanning Reserved Channel, Boston, Suffolk Count...
Significance: The Summer Street Bridge (over Reserved Channel) is the older of two known retractile drawbridges surviving in Massachusetts, and one of only four known to survive in the United States. The Summe... More
Northern Avenue Swing Bridge, Spanning Fort Point Channel at boundary ...
Significance: The Northern Avenue Swing Bridge, built in 1908, is one of only three surviving swing bridges built by the city of Boston in the late 19th and early 20th century. Today, still operated infrequent... More
Northern Avenue Swing Bridge, Spanning Fort Point Channel at boundary ...
Significance: The Northern Avenue Swing Bridge, built in 1908, is one of only three surviving swing bridges built by the city of Boston in the late 19th and early 20th century. Today, still operated infrequent... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississip...
See HAER MN-20, Upper Mississippi River Nine-Foot Channel Project History, Locks and Dams 3-10, for additional information. Significance: The Upper Mississippi River Lock and Dam Project represents one of the l... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississip...
See HAER MN-20, Upper Mississippi River Nine-Foot Channel Project History, Locks and Dams 3-10, for additional information. Significance: The Upper Mississippi River Lock and Dam Project represents one of the l... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississip...
See HAER MN-20, Upper Mississippi River Nine-Foot Channel Project History, Locks and Dams 3-10, for additional information. Significance: The Upper Mississippi River Lock and Dam Project represents one of the l... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississip...
See HAER MN-20, Upper Mississippi River Nine-Foot Channel Project History, Locks and Dams 3-10, for additional information. Significance: The Upper Mississippi River Lock and Dam Project represents one of the l... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississip...
See HAER MN-20, Upper Mississippi River Nine-Foot Channel Project History, Locks and Dams 3-10, for additional information. Significance: The Upper Mississippi River Lock and Dam Project represents one of the l... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississip...
See HAER MN-20, Upper Mississippi River Nine-Foot Channel Project History, Locks and Dams 3-10, for additional information. Significance: The Upper Mississippi River Lock and Dam Project represents one of the l... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississip...
See HAER MN-20, Upper Mississippi River Nine-Foot Channel Project History, Locks and Dams 3-10, for additional information. Significance: The Upper Mississippi River Lock and Dam Project represents one of the l... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississip...
See HAER MN-20, Upper Mississippi River Nine-Foot Channel Project History, Locks and Dams 3-10, for additional information. Significance: The Upper Mississippi River Lock and Dam Project represents one of the l... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississip...
See HAER MN-20, Upper Mississippi River Nine-Foot Channel Project History, Locks and Dams 3-10, for additional information. Significance: The Upper Mississippi River Lock and Dam Project represents one of the l... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississip...
See HAER MN-20, Upper Mississippi River Nine-Foot Channel Project History, Locks and Dams 3-10, for additional information. Significance: The Upper Mississippi River Lock and Dam Project represents one of the l... More
Picryl description: Public domain image of a ship hull, port, harbor, ...
Public domain image with Picryl description as title Public domain photograph of ship docs, shipyard, harbor, free to use, no copyright restrictions image - Picryl description
Henry Ford Bridge, Spanning Cerritos Channel, Los Angeles-Long Beach H...
Public domain photograph - historical image of California, United States, free to use, no copyright restrictions image - Picryl description
Henry Ford Bridge, Spanning Cerritos Channel, Los Angeles-Long Beach H...
Public domain scan of architectural drawing, architecture, free to use, no copyright restrictions image - Picryl description
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
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
Mississippi River 9-Foot Channel, Lock & Dam No. 19, Upper Mississippi...
Significance: Rare, intact example of nationally significant historic engineering listed on the National Register of Historic Places as part of the Lock 19 National Register District. The U.S. Army Corps of ... More
Mississippi River 9-Foot Channel, Lock & Dam No. 19, Upper Mississippi...
Significance: Rare, intact example of nationally significant historic engineering listed on the National Register of Historic Places as part of the Lock 19 National Register District. The U.S. Army Corps of ... More
Mississippi River 9-Foot Channel, Lock & Dam No. 19, Upper Mississippi...
Significance: Rare, intact example of nationally significant historic engineering listed on the National Register of Historic Places as part of the Lock 19 National Register District. The U.S. Army Corps of ... More
Mississippi River 9-Foot Channel, Lock & Dam No. 19, Upper Mississippi...
Significance: Rare, intact example of nationally significant historic engineering listed on the National Register of Historic Places as part of the Lock 19 National Register District. The U.S. Army Corps of ... More
Mississippi River 9-Foot Channel, Lock & Dam No. 19, Upper Mississippi...
Significance: Rare, intact example of nationally significant historic engineering listed on the National Register of Historic Places as part of the Lock 19 National Register District. The U.S. Army Corps of ... More
Mississippi River 9-Foot Channel, Lock & Dam No. 19, Upper Mississippi...
Significance: Rare, intact example of nationally significant historic engineering listed on the National Register of Historic Places as part of the Lock 19 National Register District. The U.S. Army Corps of ... More
Mississippi River 9-Foot Channel, Lock & Dam No. 19, Upper Mississippi...
Significance: Rare, intact example of nationally significant historic engineering listed on the National Register of Historic Places as part of the Lock 19 National Register District. The U.S. Army Corps of ... More
Mississippi River 9-Foot Channel, Lock & Dam No. 19, Upper Mississippi...
Significance: Rare, intact example of nationally significant historic engineering listed on the National Register of Historic Places as part of the Lock 19 National Register District. The U.S. Army Corps of ... More
Mississippi River 9-Foot Channel, Lock & Dam No. 19, Upper Mississippi...
Significance: Rare, intact example of nationally significant historic engineering listed on the National Register of Historic Places as part of the Lock 19 National Register District. The U.S. Army Corps of ... More
Mississippi River 9-Foot Channel, Lock & Dam No. 19, Upper Mississippi...
Significance: Rare, intact example of nationally significant historic engineering listed on the National Register of Historic Places as part of the Lock 19 National Register District. The U.S. Army Corps of ... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 27, Granite...
Significance: ...Lock and Dam No. 27 constitute additions to the original Upper Mississippi Nine-Foot Channel Project, constructed after World War II. Lock No. 27, located on the Chain of Rocks Canal, provided... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 27, Granite...
Significance: ...Lock and Dam No. 27 constitute additions to the original Upper Mississippi Nine-Foot Channel Project, constructed after World War II. Lock No. 27, located on the Chain of Rocks Canal, provided... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 27, Granite...
Significance: ...Lock and Dam No. 27 constitute additions to the original Upper Mississippi Nine-Foot Channel Project, constructed after World War II. Lock No. 27, located on the Chain of Rocks Canal, provided... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 27, Granite...
Significance: ...Lock and Dam No. 27 constitute additions to the original Upper Mississippi Nine-Foot Channel Project, constructed after World War II. Lock No. 27, located on the Chain of Rocks Canal, provided... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam 27, Granite...
Significance: ...Lock and Dam No. 27 constitute additions to the original Upper Mississippi Nine-Foot Channel Project, constructed after World War II. Lock No. 27, located on the Chain of Rocks Canal, provided... More
Coraopolis Bridge, Spanning Ohio River back channel at Ferree Street &...
See also HAER PA-490 for related documentation. Includes drawings, photographs & written data. Significance: The Coraopolis Bridge comprises two Pennsylvania through truss spans designed by Theodore Cooper and ... More
Coraopolis Bridge, Spanning Ohio River back channel at Ferree Street &...
See also HAER PA-490 for related documentation. Includes drawings, photographs & written data. Significance: The Coraopolis Bridge comprises two Pennsylvania through truss spans designed by Theodore Cooper and ... More
Coraopolis Bridge, Spanning Ohio River back channel at Ferree Street &...
See also HAER PA-490 for related documentation. Includes drawings, photographs & written data. Significance: The Coraopolis Bridge comprises two Pennsylvania through truss spans designed by Theodore Cooper and ... More
Oakland Harbor Training Walls, Mouth of Federal Channel to Inner Harbo...
Significance: The North Training Wall is one component of the Oakland Harbor Training Walls, which defined Oakland's basic harbor footprint and are the oldest surviving remnants of nineteenth-century harbor imp... More
Oakland Harbor Training Walls, Mouth of Federal Channel to Inner Harbo...
Significance: The North Training Wall is one component of the Oakland Harbor Training Walls, which defined Oakland's basic harbor footprint and are the oldest surviving remnants of nineteenth-century harbor imp... More
Oakland Harbor Training Walls, Mouth of Federal Channel to Inner Harbo...
Significance: The North Training Wall is one component of the Oakland Harbor Training Walls, which defined Oakland's basic harbor footprint and are the oldest surviving remnants of nineteenth-century harbor imp... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 4, Alma, Buffal...
Significance: This lock and dam was the first constructed as part of the Upper Mississippi River Nine-Foot Channel Project. It contains the standard items on most of the lock and dam structures in this project... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 4, Alma, Buffal...
Significance: This lock and dam was the first constructed as part of the Upper Mississippi River Nine-Foot Channel Project. It contains the standard items on most of the lock and dam structures in this project... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 4, Alma, Buffal...
Significance: This lock and dam was the first constructed as part of the Upper Mississippi River Nine-Foot Channel Project. It contains the standard items on most of the lock and dam structures in this project... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 4, Alma, Buffal...
Significance: This lock and dam was the first constructed as part of the Upper Mississippi River Nine-Foot Channel Project. It contains the standard items on most of the lock and dam structures in this project... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 4, Alma, Buffal...
Significance: This lock and dam was the first constructed as part of the Upper Mississippi River Nine-Foot Channel Project. It contains the standard items on most of the lock and dam structures in this project... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 3, Red ...
Picryl description: Public domain image of an industrial equipment, workshop, assembly line, factory, power engine, 19th-20th century, free to use, no copyright restrictions.
Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 3, Red ...
Picryl description: Public domain image of a basement, underground, lobby, free to use, no copyright restrictions.
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 9, Lynxville, C...
See HAER MN-20, Upper Mississippi River Nine-Foot Channel Project History, Locks and Dams 3-10, for additional information. Significance: The Upper Mississippi River Lock and Dam Project represents one of the l... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 9, Lynxville, C...
See HAER MN-20, Upper Mississippi River Nine-Foot Channel Project History, Locks and Dams 3-10, for additional information. Significance: The Upper Mississippi River Lock and Dam Project represents one of the l... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 9, Lynxville, C...
See HAER MN-20, Upper Mississippi River Nine-Foot Channel Project History, Locks and Dams 3-10, for additional information. Significance: The Upper Mississippi River Lock and Dam Project represents one of the l... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 9, Lynxville, C...
See HAER MN-20, Upper Mississippi River Nine-Foot Channel Project History, Locks and Dams 3-10, for additional information. Significance: The Upper Mississippi River Lock and Dam Project represents one of the l... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 9, Lynxville, C...
See HAER MN-20, Upper Mississippi River Nine-Foot Channel Project History, Locks and Dams 3-10, for additional information. Significance: The Upper Mississippi River Lock and Dam Project represents one of the l... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 9, Lynxville, C...
See HAER MN-20, Upper Mississippi River Nine-Foot Channel Project History, Locks and Dams 3-10, for additional information. Significance: The Upper Mississippi River Lock and Dam Project represents one of the l... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 7, Dres...
Significance: The Upper Mississippi River Lock and Dam Project represents one of the largest and most ambitious of such undertakings. With root in the Progressive Era, the project was adopted by New Deal propo... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 7, Dres...
Significance: The Upper Mississippi River Lock and Dam Project represents one of the largest and most ambitious of such undertakings. With root in the Progressive Era, the project was adopted by New Deal propo... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 7, Dres...
Significance: The Upper Mississippi River Lock and Dam Project represents one of the largest and most ambitious of such undertakings. With root in the Progressive Era, the project was adopted by New Deal propo... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 7, Dres...
Significance: The Upper Mississippi River Lock and Dam Project represents one of the largest and most ambitious of such undertakings. With root in the Progressive Era, the project was adopted by New Deal propo... More
Seddon Island Scherzer Rolling Lift Bridge, Spanning Garrison Channel ...
Significance: The Seddon Island Scherzer Rolling Lift Bridge is the oldest, longest-span Scherzer rolling lift bridge in Florida. It is a well-preserved example of a popular type of patented movable bridge, fa... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 5A, Win...
Significance: The Upper Mississippi River Lock and Dam Project represents one of the largest and most ambitious of such undertakings. With root in the Progressive Era, the project was adopted by New Deal propo... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 5A, Win...
Significance: The Upper Mississippi River Lock and Dam Project represents one of the largest and most ambitious of such undertakings. With root in the Progressive Era, the project was adopted by New Deal propo... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 5A, Win...
Significance: The Upper Mississippi River Lock and Dam Project represents one of the largest and most ambitious of such undertakings. With root in the Progressive Era, the project was adopted by New Deal propo... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 5A, Win...
Significance: The Upper Mississippi River Lock and Dam Project represents one of the largest and most ambitious of such undertakings. With root in the Progressive Era, the project was adopted by New Deal propo... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 5, Minn...
Significance: The Upper Mississippi River Lock and Dam Project represents one of the largest and most ambitious of such undertakings. With root in the Progressive Era, the project was adopted by New Deal propo... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 5, Minn...
Significance: The Upper Mississippi River Lock and Dam Project represents one of the largest and most ambitious of such undertakings. With root in the Progressive Era, the project was adopted by New Deal propo... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 5, Minn...
Significance: The Upper Mississippi River Lock and Dam Project represents one of the largest and most ambitious of such undertakings. With root in the Progressive Era, the project was adopted by New Deal propo... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 5, Minn...
Significance: The Upper Mississippi River Lock and Dam Project represents one of the largest and most ambitious of such undertakings. With root in the Progressive Era, the project was adopted by New Deal propo... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 5, Minn...
Significance: The Upper Mississippi River Lock and Dam Project represents one of the largest and most ambitious of such undertakings. With root in the Progressive Era, the project was adopted by New Deal propo... More
Upper Mississippi River Nine-Foot Channel Project, Lock & Dam Complex ...
Significance: The U.S. Army Corps of Engineers Nine-Foot Channel Project (1927-1940) represents the culmination of a 100-year effort to improve the navigability of the Upper Mississippi River between the mouth ... More
Illinois Waterway, Lockport Lock, Dam and Power House, 2502 Channel Dr...
Significance: The Lockport Lock, Dam and Power House Historic District is significant both for its role in navigation of the Chicago Sanitary and Ship Canal and the Illinois Waterway and for the vertical lift l... More
![[Charleston, S.C. Palmetto reinforcements on the channel side of Fort Sumter]](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE4NjUvMDEvMDEvY2hhcmxlc3Rvbi1zYy1wYWxtZXR0by1yZWluZm9yY2VtZW50cy1vbi10aGUtY2hhbm5lbC1zaWRlLW9mLWZvcnQtc3VtdGVyLTEwMjQuanBn/40/46/webp "[Charleston, S.C. Palmetto reinforcements on the channel side of Fort Sumter]")
[Charleston, S.C. Palmetto reinforcements on the channel side of Fort ...
Photograph of the Federal Navy, and seaborne expeditions against the Atlantic Coast of the Confederacy, specifically of Charleston, S.C., 1863-1865.
NASA Langley Research Center, Seaplane Towing Channel, 108 Andrews Str...
Significance: This facility performed an essential function in solving design problems that are unique to seaplanes. Several major principles of seaplane hull configuration were developed at this facility. The... More
NASA Langley Research Center, Seaplane Towing Channel, 108 Andrews Str...
Significance: This facility performed an essential function in solving design problems that are unique to seaplanes. Several major principles of seaplane hull configuration were developed at this facility. The... More
NASA Langley Research Center, Seaplane Towing Channel, 108 Andrews Str...
Significance: This facility performed an essential function in solving design problems that are unique to seaplanes. Several major principles of seaplane hull configuration were developed at this facility. The... More
Bridgeport Bridge, Spanning West Channel of Ohio River, U.S. Route 40,...
Picryl description: Public domain image of a bridge, water, historic structure, free to use, no copyright restrictions.
Bridgeport Bridge, Spanning West Channel of Ohio River, U.S. Route 40,...
Picryl description: Public domain image of a quarry, mine, excavation, or mining site, free to use, no copyright restrictions.
Mississippi River 9-Foot Channel Project, Lock & Dam No. 18, Upper Mis...
Public domain photograph - historical image of Illinois, United States, free to use, no copyright restrictions image - Picryl description
Mississippi River 9-Foot Channel Project, Lock & Dam No. 18, Upper Mis...
Public domain scan of architectural drawing, architecture, free to use, no copyright restrictions image - Picryl description
Upper Mississippi River Nine-Foot Channel Project, Lock & Dam No. 25, ...
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 Nine-Foot Channel Project, Lock & Dam No. 25, ...
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 Nine-Foot Channel Project, Lock & Dam No. 25, ...
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 Nine-Foot Channel Project, Lock & Dam No. 25, ...
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 Nine-Foot Channel Project, Lock & Dam No. 25, ...
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 Nine-Foot Channel Project, Lock & Dam No. 25, ...
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 Nine-Foot Channel Project, Lock & Dam No. 25, ...
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 Nine-Foot Channel Project, Lock & Dam No. 25, ...
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 Nine-Foot Channel Project, Lock & Dam No. 25, ...
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, Lock & Dam No. 10, Guttenberg,...
Significance: The Upper Mississippi River Lock and Dam Project represents one of the largest and most ambitious of such undertakings. With roots in the Progressive Era, the project was adopted by New Deal prop... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 10, Guttenberg,...
Significance: The Upper Mississippi River Lock and Dam Project represents one of the largest and most ambitious of such undertakings. With roots in the Progressive Era, the project was adopted by New Deal prop... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 10, Guttenberg,...
Significance: The Upper Mississippi River Lock and Dam Project represents one of the largest and most ambitious of such undertakings. With roots in the Progressive Era, the project was adopted by New Deal prop... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 10, Guttenberg,...
Significance: The Upper Mississippi River Lock and Dam Project represents one of the largest and most ambitious of such undertakings. With roots in the Progressive Era, the project was adopted by New Deal prop... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 10, Guttenberg,...
Significance: The Upper Mississippi River Lock and Dam Project represents one of the largest and most ambitious of such undertakings. With roots in the Progressive Era, the project was adopted by New Deal prop... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 10, Guttenberg,...
Significance: The Upper Mississippi River Lock and Dam Project represents one of the largest and most ambitious of such undertakings. With roots in the Progressive Era, the project was adopted by New Deal prop... More