Mississippi River 9-Foot Channel Project, Lock & Dam No. 21, 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
Cape Canaveral Air Station, Launch Complex 17, Facility 36009, East en...
Survey number: HAER FL-8-5-V Building/structure dates: 1956 Initial Construction National Register of Historic Places NRIS Number: 84003872
Mississippi River 9-Foot Channel Project, Lock & Dam No. 21, 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
Fort Pike, 27100 Chef Menteur Highway, New Orleans, Orleans Parish, LA
2014 Charles E. Peterson Prize, Second Place Significance: Fort Pike was the first of the Third System Fortifications. Considered part of the "Monroe forts of the 1st class," the fort was one of the many forts ... More
Crater Lake National Park Roads, Klamath Falls, Klamath County, OR
Significance: The primary roads in Crater Lake National Park were designed and constructed to provide visitor access to the park's scenic features, which are largely concentrated along the rim of Crater Lake. ... More
Crater Lake National Park Roads, Klamath Falls, Klamath County, OR
Significance: The primary roads in Crater Lake National Park were designed and constructed to provide visitor access to the park's scenic features, which are largely concentrated along the rim of Crater Lake. ... More
Crater Lake National Park Roads, Klamath Falls, Klamath County, OR
Significance: The primary roads in Crater Lake National Park were designed and constructed to provide visitor access to the park's scenic features, which are largely concentrated along the rim of Crater Lake. ... More
Crater Lake National Park Roads, Klamath Falls, Klamath County, OR
Significance: The primary roads in Crater Lake National Park were designed and constructed to provide visitor access to the park's scenic features, which are largely concentrated along the rim of Crater Lake. ... More
Chickamauga National Military Park Tour Roads, Fort Oglethorpe, Catoos...
Significance: The Chickamauga and Chattanooga National Military Park tour roads provide access to select areas of the park that commemorate and interpret the conflict between Union and Confederate forces over c... More
Chickamauga National Military Park Tour Roads, Fort Oglethorpe, Catoos...
Significance: The Chickamauga and Chattanooga National Military Park tour roads provide access to select areas of the park that commemorate and interpret the conflict between Union and Confederate forces over c... More
Chickamauga National Military Park Tour Roads, Fort Oglethorpe, Catoos...
Significance: The Chickamauga and Chattanooga National Military Park tour roads provide access to select areas of the park that commemorate and interpret the conflict between Union and Confederate forces over c... More
Chickamauga National Military Park Tour Roads, Fort Oglethorpe, Catoos...
Significance: The Chickamauga and Chattanooga National Military Park tour roads provide access to select areas of the park that commemorate and interpret the conflict between Union and Confederate forces over c... More
Chickamauga National Military Park Tour Roads, Fort Oglethorpe, Catoos...
Significance: The Chickamauga and Chattanooga National Military Park tour roads provide access to select areas of the park that commemorate and interpret the conflict between Union and Confederate forces over c... More
Mississippi River 9-Foot Channel Project, Lock & Dam No. 15, 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
Jet Propulsion Laboratory Edwards Facility, Edwards Air Force Base, Bo...
Significance: Operated by the California Institute of Technology, the Jet Propulsion Laboratory Edward Facility was the United States' first university-sponsored research and testing facility for the developmen... More
Arlington National Cemetery, USS Maine Memorial, Arlington, Arlington ...
Significance: "Remember the Maine" was the popular call of the "yellow" or sensational press, Congress, and private citizens throughout the United States as they rallied around the tragedy of 1898. The sinking ... More
Arlington National Cemetery, USS Maine Memorial, Arlington, Arlington ...
Significance: "Remember the Maine" was the popular call of the "yellow" or sensational press, Congress, and private citizens throughout the United States as they rallied around the tragedy of 1898. The sinking ... More
MacDill Air Force Base, Base Headquarters, 2413 Florida Keys Avenue, T...
Significance: The Base Headquarters building, due to its architectural integrity and its contribution to the Second World War-era infrastructure, is an integral part of the MacDill Air Force Base's historic cha... More
St. Mary's Falls Canal, Soo Locks, St. Mary's River at Falls, Sault St...
Significance: The locks of the St. Mary's Falls Canal reflect a national level of significance in settlement, transportation, industrial, and engineering history. The completion of the State Locks in 1855 effe... More
Arlington National Cemetery, Old Amphitheater, Arlington, Arlington Co...
Significance: In 1868, General John Logan from the Headquarters of the Grand Army of the Republic (G.A.R.) declared May 30th a day of remembrance for Union soldiers who had died in the Civil War. President Joh... More
Arlington National Cemetery, Old Amphitheater, Arlington, Arlington Co...
Significance: In 1868, General John Logan from the Headquarters of the Grand Army of the Republic (G.A.R.) declared May 30th a day of remembrance for Union soldiers who had died in the Civil War. President Joh... More
Arlington National Cemetery, Old Amphitheater, Arlington, Arlington Co...
Significance: In 1868, General John Logan from the Headquarters of the Grand Army of the Republic (G.A.R.) declared May 30th a day of remembrance for Union soldiers who had died in the Civil War. President Joh... More
Cape Canaveral Air Station, Launch Complex 17, Facility 36006, East en...
Survey number: HAER FL-8-5-U Building/structure dates: 1956 Initial Construction National Register of Historic Places NRIS Number: 84003872
Mississippi River 9-Foot Channel Project, Lock & Dam No. 17, 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. 17, 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
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
Mark Twain Memorial Bridge, Spanning Mississippi River at US Route 36,...
Significance: The Mark Twain Memorial Bridge is significant as one of the state's most monumental examples of cantilevered steel truss construction. Also, it has served as a pivotal link for regional transport... More
Stanley R. Mickelsen Safeguard Complex, Perimeter Acquisition Radar Bu...
Significance: It is believed that the plans for deployment and initiation of construction of this facility were instrumental in obtaining Soviet agreement to the Anti-Ballistic Missile Treaty and a subsequent d... More
Stanley R. Mickelsen Safeguard Complex, Perimeter Acquisition Radar Bu...
Significance: It is believed that the plans for deployment and initiation of construction of this facility were instrumental in obtaining Soviet agreement to the Anti-Ballistic Missile Treaty and a subsequent d... More
Cape Canaveral Air Station, Launch Complex 17, Facility 28502, East en...
Survey number: HAER FL-8-5-N Building/structure dates: 1956 Initial Construction National Register of Historic Places NRIS Number: 84003872
Chicago Sanitary and Ship Canal, Lockport Power House and Dam, 2502 Ch...
Significance: The Lockport Power House and Dam were built as part of an extension to the Chicago Sanitary and Ship Canal after the Illinois State Legislature authorized the Sanitary District to develop a water ... More
Chicago Sanitary and Ship Canal, Lockport Power House and Dam, 2502 Ch...
Significance: The Lockport Power House and Dam were built as part of an extension to the Chicago Sanitary and Ship Canal after the Illinois State Legislature authorized the Sanitary District to develop a water ... More
Loring Air Force Base, Weapons Storage Area, Northeastern corner of ba...
Significance: The Weapons Storage Area (WSA) stands as the first operational storage site constructed for the storage of atomic weapons under control of Strategic Air Command (SAC) during the Cold War, and has ... More
Washington Monument, High ground West of Fifteenth Street, Northwest, ...
See also HAER DC-5 for additional documentation. Significance: Built to commemorate the first president of the United States, the monument has also become a hallowed symbol of the nation's government and the ci... More
Washington Monument, High ground West of Fifteenth Street, Northwest, ...
See also HAER DC-5 for additional documentation. Significance: Built to commemorate the first president of the United States, the monument has also become a hallowed symbol of the nation's government and the ci... More
Washington Monument, High ground West of Fifteenth Street, Northwest, ...
See also HAER DC-5 for additional documentation. Significance: Built to commemorate the first president of the United States, the monument has also become a hallowed symbol of the nation's government and the ci... More
Washington Monument, High ground West of Fifteenth Street, Northwest, ...
See also HAER DC-5 for additional documentation. Significance: Built to commemorate the first president of the United States, the monument has also become a hallowed symbol of the nation's government and the ci... More
Washington Monument, High ground West of Fifteenth Street, Northwest, ...
See also HAER DC-5 for additional documentation. Significance: Built to commemorate the first president of the United States, the monument has also become a hallowed symbol of the nation's government and the ci... More
Prado Dam, Santa Ana River near junction of State Highways 71 & 91, Co...
Significance: The construction of Prado Dam was a significant event in the history of flood control in southern California and specifically Orange County. The Dam has played a vital role in the economies and d... 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
Chicago Sanitary and Ship Canal, Extends 33.9 miles from Chicago to Lo...
Significance: To deal with Chicago's water supply and pollution issues, the engineers of the Sanitary District devised an innovative approach that involved diluting the city's sewage with water drawn from Lake ... More
MacDill Air Force Base, Base Theater, 2420 Florida Keys Avenue, Tampa,...
Significance: The Base Theater, due to its architectural integrity and its contribution to the Second World War-era infrastructure, is an integral part of MacDill Air Force Base's historic character. The build... More
Prado Dam, Outlet Works, Santa Ana River near junction of State Highwa...
Significance: The construction of Prado Dam was a significant event in the history of flood control in southern California and specifically Orange County. The Dam has played a vital role in the economies and d... 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
Mississippi River 9-Foot Channel Project, Lock & Dam No. 13, 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, 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, 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
Cape Canaveral Air Station, Launch Complex 17, Facility 28501, East en...
Survey number: HAER FL-8-5-B Building/structure dates: 1956 Initial Construction National Register of Historic Places NRIS Number: 84003872
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
Holston Army Ammunition Plant, RDX-and-Composition-B Manufacturing Lin...
Significance: Line 9 is highly representative of the 10 production lines constructed at HSAAP during WWII for the manufacture of the military high explosive Composition B, and its chief ingredient RDX. These bu... 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
Nike Missile Battery MS-40, County Road No. 260, Farmington, Dakota Co...
Significance: The Nike missile system, first developed in the 1950s, was the United States' first and most widely deployed air defense missile system. Nike installations were a critical element in national air... More
Nike Missile Battery MS-40, County Road No. 260, Farmington, Dakota Co...
Significance: The Nike missile system, first developed in the 1950s, was the United States' first and most widely deployed air defense missile system. Nike installations were a critical element in national air... More
Rock Creek Park Road System, Washington, District of Columbia, DC
Significance: Rock Creek Park was created in 1890 to preserve a large section of the wooded valley formed by Rock Creek as a "public park and pleasuring ground" for the nation's capital. Rock Creek Park is one... 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
Cape Canaveral Air Station, Launch Complex 17, East end of Lighthouse ...
Significance: Launch Complex 17 has played a key role in the American space program by supporting over 260 launches since 1957. Constructed in 1956 and 1957, the complex originally supported the Air Force's Th... More