Congress Street Bascule Bridge, Spanning Fort Point Channel at Congres...
Significance: The Congress Street Bridge, built in 1930, is a trunnion bascule bridge and the most recent of the five movable-truss bridges spanning the Fort Point Channel. It replaced a steam operated swing d... More
Congress Street Bascule Bridge, Spanning Fort Point Channel at Congres...
Significance: The Congress Street Bridge, built in 1930, is a trunnion bascule bridge and the most recent of the five movable-truss bridges spanning the Fort Point Channel. It replaced a steam operated swing d... More
Congress Street Bascule Bridge, Spanning Fort Point Channel at Congres...
Significance: The Congress Street Bridge, built in 1930, is a trunnion bascule bridge and the most recent of the five movable-truss bridges spanning the Fort Point Channel. It replaced a steam operated swing d... More
Congress Street Bascule Bridge, Spanning Fort Point Channel at Congres...
Significance: The Congress Street Bridge, built in 1930, is a trunnion bascule bridge and the most recent of the five movable-truss bridges spanning the Fort Point Channel. It replaced a steam operated swing d... More
Entrance to Aquia Creek, the Channel runs past the batteries
Landscape along creek. Title inscribed below image. Inscribed above image from left to right: camps behind the woods; split rock battery; funnels fish houses; South battery; camp behind the woods; camps behind ... More
Entrance to Aquia Creek, the Channel runs past the batteries
Landscape along creek. Title inscribed below image. Inscribed above image from left to right: camps behind the woods; split rock battery; funnels fish houses; South battery; camp behind the woods; camps behind ... More
Market Street Bridge, Spanning East channel of Susquehanna River at Ma...
Significance: The river crossing where the bridge now stands had historically been the western gateway into Harrisburg. For over a century, spans here were operated by the Harrisburg Bridge Company, including t... More
Market Street Bridge, Spanning East channel of Susquehanna River at Ma...
Significance: The river crossing where the bridge now stands had historically been the western gateway into Harrisburg. For over a century, spans here were operated by the Harrisburg Bridge Company, including t... More
Kachess Dam, Inlet Channel, Kachess River, 1.5 miles north of Intersta...
Survey number: HAER WA-79-F Public domain photograph of quarry, mining industry, miners, free to use, no copyright restrictions image - Picryl description
Boundary Channel Bridge, Spanning Boundary Channel, Washington, Distri...
Significance: Boundary Channel Bridge is unique among the other bridges erected along the Mount Vernon Memorial Highway. It consists of seven reinforced concrete cantilever girders and two exterior girders of ... More
Boundary Channel Bridge, Spanning Boundary Channel, Washington, Distri...
Significance: Boundary Channel Bridge is unique among the other bridges erected along the Mount Vernon Memorial Highway. It consists of seven reinforced concrete cantilever girders and two exterior girders of ... More
The Lost Channel, Thousand Islands
Picryl description: Public domain vintage artistic photograph, free to use, no copyright restrictions image.
Washington Water Power Company Post Falls Power Plant, Middle Channel ...
Significance: It is significant as the first power production and transmission facility constructed on the Spokane River outside Spokane. The historic property consists of the connected, but irregular shaped "o... More
Washington Water Power Company Post Falls Power Plant, Middle Channel ...
Significance: It is significant as the first power production and transmission facility constructed on the Spokane River outside Spokane. The historic property consists of the connected, but irregular shaped "o... More
Washington Water Power Company Post Falls Power Plant, Middle Channel ...
Significance: It is significant as the first power production and transmission facility constructed on the Spokane River outside Spokane. The historic property consists of the connected, but irregular shaped "o... More
Mississippi River 9-Foot Channel Project, Lock & Dam No. 16, Upper Mis...
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
Mississippi River 9-Foot Channel Project, Lock & Dam No. 16, Upper Mis...
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
Mississippi River 9-Foot Channel Project, Lock & Dam No. 16, Upper Mis...
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
Mississippi River 9-Foot Channel Project, Lock & Dam No. 16, Upper Mis...
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
Jones Beach State Parkway Channel Bascule Bridge MP-3, Route 908 E, sp...
Significance: This bridge is one of the original Meadowbrook State Parkway bridges. Survey number: HAER NY-178 Building/structure dates: 1934 Initial Construction
Jones Beach State Parkway Channel Bascue Bridge LP-2, Route 908 C, spa...
Significance: One of the original Loop State Parkway bridges. Survey number: HAER NY-177 Building/structure dates: 1934 Initial Construction
Puente del Rio Grande de Arecibo, Spanning Rio Grande de Arecibo Chann...
Picryl description: Public domain image of a bridge, water, historic structure, free to use, no copyright restrictions.
Puente del Rio Grande de Arecibo, Spanning Rio Grande de Arecibo Chann...
Public domain scan of a technical diagram, plan, or drawing, free to use, no copyright restrictions - Picryl description.
New York, New Haven & Hartford Railroad, Fort Point Channel Rolling Li...
Significance: The construction of South Station in 1896-98, involved the rerouting of several of the old lines from the west and south. The New York, New Haven & Hartford Railroad constructed a six-track rollin... More
New York, New Haven & Hartford Railroad, Fort Point Channel Rolling Li...
Significance: The construction of South Station in 1896-98, involved the rerouting of several of the old lines from the west and south. The New York, New Haven & Hartford Railroad constructed a six-track rollin... More
New York, New Haven & Hartford Railroad, Fort Point Channel Rolling Li...
Significance: The construction of South Station in 1896-98, involved the rerouting of several of the old lines from the west and south. The New York, New Haven & Hartford Railroad constructed a six-track rollin... More
New York, New Haven & Hartford Railroad, Fort Point Channel Rolling Li...
Significance: The construction of South Station in 1896-98, involved the rerouting of several of the old lines from the west and south. The New York, New Haven & Hartford Railroad constructed a six-track rollin... More
New York, New Haven & Hartford Railroad, Fort Point Channel Rolling Li...
Significance: The construction of South Station in 1896-98, involved the rerouting of several of the old lines from the west and south. The New York, New Haven & Hartford Railroad constructed a six-track rollin... More
New York, New Haven & Hartford Railroad, Fort Point Channel Rolling Li...
Significance: The construction of South Station in 1896-98, involved the rerouting of several of the old lines from the west and south. The New York, New Haven & Hartford Railroad constructed a six-track rollin... More
Steel Arch Bridge, Hennepin Avenue spanning west channel of Mississipp...
Significance: The Steel Arch bridge falls within the boundaries of the nationally registered St. Anthony Falls Historic District. The bridge was built in two longitudinal halves. The north half was constructed... More
Steel Arch Bridge, Hennepin Avenue spanning west channel of Mississipp...
Significance: The Steel Arch bridge falls within the boundaries of the nationally registered St. Anthony Falls Historic District. The bridge was built in two longitudinal halves. The north half was constructed... More
Steel Arch Bridge, Hennepin Avenue spanning west channel of Mississipp...
Significance: The Steel Arch bridge falls within the boundaries of the nationally registered St. Anthony Falls Historic District. The bridge was built in two longitudinal halves. The north half was constructed... More
Kachess Dam, Cutoff Channel and Crib Structures, Kachess River, 1.5 mi...
Survey number: HAER WA-79-G Public domain photograph - historical image of Washington State, United States, free to use, no copyright restrictions image - Picryl description
Mississippi River 9-Foot Channel, Lock & Dam No. 14, Upper Mississippi...
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
Mississippi River 9-Foot Channel, Lock & Dam No. 14, Upper Mississippi...
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
Mississippi River 9-Foot Channel, Lock & Dam No. 14, Upper Mississippi...
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
Mississippi River 9-Foot Channel, Lock & Dam No. 14, Upper Mississippi...
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
Mississippi River 9-Foot Channel, Lock & Dam No. 14, Upper Mississippi...
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
Mississippi River 9-Foot Channel, Lock & Dam No. 14, Upper Mississippi...
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
Mississippi River 9-Foot Channel, Lock & Dam No. 14, Upper Mississippi...
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
Puente Ferroviario San Antonio, Spanning San Antonio Channel at PR-1, ...
Significance: The San Antonio railroad bridge is a concrete structure built between 1922 and 1932, consisting of arch-framed slab spans with art-deco railings and spandrel walls. It was designed to replace a 1... More
Puente Ferroviario San Antonio, Spanning San Antonio Channel at PR-1, ...
Significance: The San Antonio railroad bridge is a concrete structure built between 1922 and 1932, consisting of arch-framed slab spans with art-deco railings and spandrel walls. It was designed to replace a 1... More
Puente Ferroviario San Antonio, Spanning San Antonio Channel at PR-1, ...
Significance: The San Antonio railroad bridge is a concrete structure built between 1922 and 1932, consisting of arch-framed slab spans with art-deco railings and spandrel walls. It was designed to replace a 1... More
Southwest Washington, Urban Renewal Area, Bounded by Independence Aven...
Significance: Southwest Washington, D.C., was the site of one of the earliest urban renewal efforts in the United States, and the first such renewal effort in the Nation's Capitol. While not the largest urban r... More
Box Elder Creek Arch Bridge, Spanning former channel of South fork of ...
Picryl description: Public domain image of a park, trees, outdoors, free to use, no copyright restrictions.
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
Mississippi River 9-Foot Channel, Lock & Dam No. 1, In Mississippi Riv...
Significance: Lock and Dam No. 1 is significant because it symbolizes important local and national events and trends, and because it possesses a rare and unique design. In 1894, Congress authorized two locks a... More
Mississippi River 9-Foot Channel, Lock & Dam No. 1, In Mississippi Riv...
Significance: Lock and Dam No. 1 is significant because it symbolizes important local and national events and trends, and because it possesses a rare and unique design. In 1894, Congress authorized two locks a... More
Thompson Falls Hydroelectric Project, Power Foreman's Bungalow, On isl...
Significance: The building is representative of turn-of-the-century hydroelectric companies' custom of providing employee housing to ensure the efficient operation and maintenance of their facilities. The bunga... More
Thompson Falls Hydroelectric Project, Power Foreman's Bungalow, On isl...
Significance: The building is representative of turn-of-the-century hydroelectric companies' custom of providing employee housing to ensure the efficient operation and maintenance of their facilities. The bunga... More
Mississippi River 9-Foot Channel Project, Lock & Dam No. 11, Upper Mis...
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
Mississippi River 9-Foot Channel Project, Lock & Dam No. 11, Upper Mis...
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
Mississippi River 9-Foot Channel Project, Lock & Dam No. 11, Upper Mis...
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
Mississippi River 9-Foot Channel Project, Lock & Dam No. 11, Upper Mis...
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
Mississippi River 9-Foot Channel Project, Lock & Dam No. 11, Upper Mis...
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
Mississippi River 9-Foot Channel Project, Lock & Dam No. 11, Upper Mis...
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
Mississippi River 9-Foot Channel Project, Lock & Dam No. 11, Upper Mis...
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
Wheeling Suspension Bridge, Spanning East channel of Ohio River at U.S...
Significance: Oldest vehicular suspension bridge still in operation in the world; span in excess of 1,0000 feet. First bridge built crossing the Ohio River. Originally designed and built by Charles Ellet in 1... More
Wheeling Suspension Bridge, Spanning East channel of Ohio River at U.S...
Significance: Oldest vehicular suspension bridge still in operation in the world; span in excess of 1,0000 feet. First bridge built crossing the Ohio River. Originally designed and built by Charles Ellet in 1... More
Wheeling Suspension Bridge, Spanning East channel of Ohio River at U.S...
Significance: Oldest vehicular suspension bridge still in operation in the world; span in excess of 1,0000 feet. First bridge built crossing the Ohio River. Originally designed and built by Charles Ellet in 1... More
Broadway Bridge, Spanning Foundry Street, MBTA Yard, Fort Point Channe...
Picryl description: Public domain vintage artistic photograph, free to use, no copyright restrictions image.
Broadway Bridge, Spanning Foundry Street, MBTA Yard, Fort Point Channe...
Picryl description: Public domain image of a train station, railroad tracks, railway depot, 19th-20th century, free to use, no copyright restrictions.
Town of Atlantic City, North end of Absecon Island, South of Absecon C...
Significance: Atlantic City, the most famous of the speculative New Jersey resorts, conceived in the 1850s, was the first resort created in conglomeration with the railroad industry and signaled the opening of ... More
Nineveh Bridge, Spanning Old Channel of Chariton River, Connelsville, ...
Significance: A well preserved example of an early high Pratt through truss bridge with an unmodified main span including plate iron with angle iron flange constructed floor beams and wood stringers. Survey nu... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 6, Trempealeau,...
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. 6, Trempealeau,...
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. 6, Trempealeau,...
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
Keechelus Dam, Outlet Channel, Yakim River, 10 miles northwest of East...
Survey number: HAER WA-80-A Public domain photograph of river bank, water, free to use, no copyright restrictions image - Picryl description Public domain photograph of a park, lake, pond, free to use, no co... More
Puente del Caño Carate, Spanning Cano Carate Channel, Arecibo, Arecibo...
Significance: Puente del Cano Carate (Bridge No. 53) is a two-lane, 3-span, 29.15-meter long and 8.03-meter wide steel beam bridge. Its ornamentation consists of balustrades and exposed aggregate art deco geom... More
Summer Street Retractile Bridge, Spanning Fort Point Channel at Summer...
Significance: The Summer St. bridge is a rare movable type of bridge known as a retractile draw, in which the moving span is pulled diagonally away from the navigable channel on several sets of rails. Only fou... More
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
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
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
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
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
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
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
Aurora Avenue Bridge, Spanning Lake Washington Ship Channel, Seattle, ...
Significance: The Aurora Avenue Bridge, a nearly 3,000-foot steel cantilever structure is one of Seattle's longest and tallest spans. It provided an important early crossing of the Lake Washington Ship Canal f... 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
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
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
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
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
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
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
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