Illinois Waterway, Thomas J. O'Brien Lock and Control Works, East 130t...
Significance: The Thomas J. O'Brien Lock and Control Works is significant as a component of the Illinois Waterway, a navigable route linking Lake Michigan with the Mississippi River and beyond. The lock and co... More
Narraguagus Light Station, On eastern side of Pond Island at entrance ...
Survey number: HABS ME-195
U.S. Coast Guard Cutter BRAMBLE, Waterfront at Lincoln Avenue, Port Hu...
Significance: This vessel was built to serve as a 180' U.S. Coast Guard cutter. The federal government purchased or built thirty-nine of these vessels, built in three sub-classes, from 1942-1944. The United S... More
U.S. Coast Guard Cutter FIR, Puget Sound Area, Seattle, King County, W...
Photos 1-33 were taken while the FIR was mothballed at the Suisun Bay Reserve Fleet in Benicia, California. Significance: Designed a National Historic Landmark for her exceptional national significance, the FIR... More
U.S. Coast Guard Cutter FIR, Puget Sound Area, Seattle, King County, W...
Photos 1-33 were taken while the FIR was mothballed at the Suisun Bay Reserve Fleet in Benicia, California. Significance: Designed a National Historic Landmark for her exceptional national significance, the FIR... More
U.S. Coast Guard Cutter FIR, Puget Sound Area, Seattle, King County, W...
Photos 1-33 were taken while the FIR was mothballed at the Suisun Bay Reserve Fleet in Benicia, California. Significance: Designed a National Historic Landmark for her exceptional national significance, the FIR... More
U.S. Coast Guard Cutter FIR, Puget Sound Area, Seattle, King County, W...
Photos 1-33 were taken while the FIR was mothballed at the Suisun Bay Reserve Fleet in Benicia, California. Significance: Designed a National Historic Landmark for her exceptional national significance, the FIR... More
U.S. Coast Guard Cutter PLANETREE, San Francisco, San Francisco County...
Public domain photograph of Vietnam War, the 1960s, 1970s, free to use, no copyright restrictions image - Picryl description
Portsmouth Coast Guard Station, Storage Shed, Portsmouth, Carteret Cou...
Significance: As a minor storage facility, this small outbuilding contributed to the general historic scene of Portsmouth Village, an historic district entered on the National Register of Historic Places for it... More
Faro de Punta Higuero, Punta Higuero, Centro Puntas, Rincon Municipio,...
Significance: In 1892 the original light was built as a fixed white 6th order station with a 6 mile range light beam. It was a singular piece of design and construction similar to Guanica Light. The most stri... More
Wilson Dam & Hydroelectric Plant, Navigation Lock, Spanning Tennessee ...
Survey number: HAER AL-47-E National Register of Historic Places NRIS Number: 66000147
Faro de los Morillos de Arecibo, Punta Morillos,end of Rt. 655, Arecib...
Picryl description: Public domain image of historical building ruins, free to use, no copyright restrictions.
Ham's Bluff Lighthouse, Keeper's Quarters, Marron Ridge of Ham's Bluff...
Significance: The significance of the two auxiliary buildings is their association with the Ham's Bluff Lighthouse. The Lighthouse was put into operation in 1913 by the Danish government in response to the bui... 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
Northern Canal, Pawtucket & Ford Streets vicinity, Lowell, Middlesex C...
Significance: The Northern Canal was constructed to bring more water into the canal system in order that the demands for power made by increasingly large mills could be met. The Northern Canal supplemented the... More
Rapide Croche Lock & Dam, At 22.8 mile marker on Lower Fox River, Wrig...
Significance: The Rapide Croche Lock and Dam Complex allowed water navigation around rapids in the Fox River for boats traveling between Kaukauna and Green Bay. This complex served as an integral part of the Lo... More
Faro de Punta Mulas, Punta Mulas, Isabel Segunda, Vieques Municipio, P...
Significance: The structure was built in 1895. Its background is the capital city of Vieques, Isabel II, and the central hills of the island. Survey number: HAER PR-15 Building/structure dates: 1895 Initial ... More
Perkin's Island Light Station, East side of Kennebec River just south ...
Survey number: HABS ME-190 Public domain photograph - historic landmark, free to use, no copyright restrictions image - Picryl description
Gage Irrigation Canal, Running from Santa Ana River to Arlington Heigh...
Significance: The Gage Irrigation Canal was instrumental in the development of citrus production and the settlement of the Riverside area. At the time of its completion, the canal was the most ambitious irriga... More
Presque Isle Lighthouse, Peninsula Drive, Presque Isle State Park, Eri...
Survey number: HABS PA-624 Building/structure dates: 1872 Initial Construction
Presque Isle Lighthouse, Peninsula Drive, Presque Isle State Park, Eri...
Survey number: HABS PA-624 Building/structure dates: 1872 Initial Construction
Illinois Waterway, Peoria Lock and Dam, 1071 Wesley Road, Creve Coeur,...
Significance: The Peoria Lock and Dam site is significant as a component of the Illinois Waterway, which provided a navigable route from Lake Michigan to the Mississippi River and beyond. Peoria Dam is also si... More
Burlington Northern Railroad Bridge, Spanning Willamette River at Rive...
Significance: Willamette River Bridge 5.1 is the south end part of a 4-3/4 mile-long network of railroad bridges, causeways, and cut system linking the mainlines north and south of Portland. The bridge is one ... More
Burlington Northern Railroad Bridge, Spanning Willamette River at Rive...
Significance: Willamette River Bridge 5.1 is the south end part of a 4-3/4 mile-long network of railroad bridges, causeways, and cut system linking the mainlines north and south of Portland. The bridge is one ... More
Burlington Northern Railroad Bridge, Spanning Willamette River at Rive...
Significance: Willamette River Bridge 5.1 is the south end part of a 4-3/4 mile-long network of railroad bridges, causeways, and cut system linking the mainlines north and south of Portland. The bridge is one ... More
Burlington Northern Railroad Bridge, Spanning Willamette River at Rive...
Significance: Willamette River Bridge 5.1 is the south end part of a 4-3/4 mile-long network of railroad bridges, causeways, and cut system linking the mainlines north and south of Portland. The bridge is one ... More
Burlington Northern Railroad Bridge, Spanning Willamette River at Rive...
Significance: Willamette River Bridge 5.1 is the south end part of a 4-3/4 mile-long network of railroad bridges, causeways, and cut system linking the mainlines north and south of Portland. The bridge is one ... More
Burlington Northern Railroad Bridge, Spanning Willamette River at Rive...
Significance: Willamette River Bridge 5.1 is the south end part of a 4-3/4 mile-long network of railroad bridges, causeways, and cut system linking the mainlines north and south of Portland. The bridge is one ... More
Faro de Punta Borinquen, Punta Borinquen, Borinquen, Ponce Municipio, ...
Significance: The original lighthouse was built in 1889 in position 18* 29' 26" N - 67* 9' 43" W, very close to the sea in a low sandy point. In 1918 Puerto Rico experienced an earthquake which had its epicente... More
Faro de Punta Borinquen, Punta Borinquen, Borinquen, Ponce Municipio, ...
Significance: The original lighthouse was built in 1889 in position 18* 29' 26" N - 67* 9' 43" W, very close to the sea in a low sandy point. In 1918 Puerto Rico experienced an earthquake which had its epicente... More
Portulan de Charles-Quint donné à Philippe II, accompagné d'une notice...
Available also through the Library of Congress Web site as a raster image.
Haig Point Tabby Ruins, Haig Point Road, Daufuskie Landing, Beaufort C...
Significance: Before its destruction during, or soon after, the Civil War the main house at Haig Point plantation was the largest tabby domestic building erected in coastal South Carolina. Today, the north slav... More
Haig Point Tabby Ruins, Haig Point Road, Daufuskie Landing, Beaufort C...
Significance: Before its destruction during, or soon after, the Civil War the main house at Haig Point plantation was the largest tabby domestic building erected in coastal South Carolina. Today, the north slav... More
Haig Point Tabby Ruins, Haig Point Road, Daufuskie Landing, Beaufort C...
Significance: Before its destruction during, or soon after, the Civil War the main house at Haig Point plantation was the largest tabby domestic building erected in coastal South Carolina. Today, the north slav... More
Haig Point Tabby Ruins, Haig Point Road, Daufuskie Landing, Beaufort C...
Significance: Before its destruction during, or soon after, the Civil War the main house at Haig Point plantation was the largest tabby domestic building erected in coastal South Carolina. Today, the north slav... 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
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
U.S. Coast Guard Cutter WHITE SAGE, U.S. Coast Guard 1st District Base...
Significance: WHITE SAGE was originally constructed as a yard lighter YF 444 for the U.S. Navy YF 257 class. This class of vessel provided logistical support to naval operations during World War II. Following... More
U.S. Coast Guard Cutter WHITE SAGE, U.S. Coast Guard 1st District Base...
Significance: WHITE SAGE was originally constructed as a yard lighter YF 444 for the U.S. Navy YF 257 class. This class of vessel provided logistical support to naval operations during World War II. Following... More
U.S. Coast Guard Cutter WHITE SAGE, U.S. Coast Guard 1st District Base...
Significance: WHITE SAGE was originally constructed as a yard lighter YF 444 for the U.S. Navy YF 257 class. This class of vessel provided logistical support to naval operations during World War II. Following... More
Illinois Waterway, Dresden Island Lock and Dam , 7521 North Lock Road,...
Significance: The Dresden Island Lock and Dam site is significant as a component of the Illinois Waterway, which was developed to provide a navigable route from Lake Michigan to the Mississippi River and beyond... 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
Bridgeport Swing Span Bridge, Spanning Tennessee River, Bridgeport, Ja...
Significance: The Bridgeport Swing Span Railroad Bridge embodies the distinctive characteristics of a type, period and method of construction. Its method of construction (pin-connected) is rare for a swing bri... More
Faro de Punta Tuna, Punta Tuna, Emajagua, Maunabo Municipio, PR
Significance: The Punta Tuna Lighthouse was constructed as a third order lighthouse that showed a white light with a group of two flashes. It served as the most eastern primary light that terminated the Island... More
Faro de Punta Tuna, Punta Tuna, Emajagua, Maunabo Municipio, PR
Significance: The Punta Tuna Lighthouse was constructed as a third order lighthouse that showed a white light with a group of two flashes. It served as the most eastern primary light that terminated the Island... More
U.S. Coast Guard Cutter WHITE HOLLY, U.S. Coast Guard 8th District Bas...
Significance: WHITE HOLLY was originally constructed as a yard lighter YF 341 for the U.S. Navy YF 257 class. This class of vessel provided logistical support to naval operations during World War II. Followin... More
U.S. Coast Guard Cutter WHITE HOLLY, U.S. Coast Guard 8th District Bas...
Significance: WHITE HOLLY was originally constructed as a yard lighter YF 341 for the U.S. Navy YF 257 class. This class of vessel provided logistical support to naval operations during World War II. Followin... More
U.S. Coast Guard Cutter WHITE HOLLY, U.S. Coast Guard 8th District Bas...
Significance: WHITE HOLLY was originally constructed as a yard lighter YF 341 for the U.S. Navy YF 257 class. This class of vessel provided logistical support to naval operations during World War II. Followin... More
U.S. Coast Guard Cutter WHITE HOLLY, U.S. Coast Guard 8th District Bas...
Significance: WHITE HOLLY was originally constructed as a yard lighter YF 341 for the U.S. Navy YF 257 class. This class of vessel provided logistical support to naval operations during World War II. Followin... More
U.S. Coast Guard Cutter WHITE HOLLY, U.S. Coast Guard 8th District Bas...
Significance: WHITE HOLLY was originally constructed as a yard lighter YF 341 for the U.S. Navy YF 257 class. This class of vessel provided logistical support to naval operations during World War II. Followin... More
U.S. Coast Guard Cutter WHITE HOLLY, U.S. Coast Guard 8th District Bas...
Significance: WHITE HOLLY was originally constructed as a yard lighter YF 341 for the U.S. Navy YF 257 class. This class of vessel provided logistical support to naval operations during World War II. Followin... More
U.S. Coast Guard Cutter WHITE HOLLY, U.S. Coast Guard 8th District Bas...
Significance: WHITE HOLLY was originally constructed as a yard lighter YF 341 for the U.S. Navy YF 257 class. This class of vessel provided logistical support to naval operations during World War II. Followin... More
Detroit & Cleveland Navigation Company Warehouse, Wayne Street, Detroi...
Unprocessed Field note material exists for this structure: FN-38 Survey number: HABS MI-119 Building/structure dates: 1854 Initial Construction Building/structure dates: 18h2 Subsequent Work
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
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
Starved Rock Locks & Dam, Illinois Waterway River mile 231, Peru, La S...
Significance: Starved Rock Lock and Dam consists of a 1,310' straight-crested, reinforced-concrete gravity dam and a 110' x 600' Ohio River Standard lock with horizontally framed miter gates. A 518' headgate s... More
Bonneville Project, Navigation Lock No. 1, Oregon shore of Columbia Ri...
Survey number: HAER OR-11-D Building/structure dates: 1937 Initial Construction
Bonneville Project, Navigation Lock No. 1, Oregon shore of Columbia Ri...
Survey number: HAER OR-11-D Building/structure dates: 1937 Initial Construction
Bonneville Project, Navigation Lock No. 1, Oregon shore of Columbia Ri...
Survey number: HAER OR-11-D Building/structure dates: 1937 Initial Construction
Bonneville Project, Navigation Lock No. 1, Oregon shore of Columbia Ri...
Survey number: HAER OR-11-D Building/structure dates: 1937 Initial Construction
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.
Pawtucket Canal, Guard Locks, Lowell, Middlesex County, MA
Significance: The Guard Locks were the first set of locks constructed in the Lowell System which are still in existence. They have, however, been altered and added to since first put into use. The Guard Locks... More
Pawtucket Canal, Guard Locks, Lowell, Middlesex County, MA
Significance: The Guard Locks were the first set of locks constructed in the Lowell System which are still in existence. They have, however, been altered and added to since first put into use. The Guard Locks... More
Pawtucket Canal, Guard Locks, Lowell, Middlesex County, MA
Significance: The Guard Locks were the first set of locks constructed in the Lowell System which are still in existence. They have, however, been altered and added to since first put into use. The Guard Locks... More
Pawtucket Canal, Guard Locks, Lowell, Middlesex County, MA
Significance: The Guard Locks were the first set of locks constructed in the Lowell System which are still in existence. They have, however, been altered and added to since first put into use. The Guard Locks... More
Dredge CINCINNATI, Docked on Ohio River at foot of Lighthill Street, P...
Significance: The Cincinnati is a "dipper dredge," particularly suited to the shallow, rocky conditions of American inland waterways. The dredge operated for 78 years on the Ohio River and its tributaries. Th... More
Dredge CINCINNATI, Docked on Ohio River at foot of Lighthill Street, P...
Significance: The Cincinnati is a "dipper dredge," particularly suited to the shallow, rocky conditions of American inland waterways. The dredge operated for 78 years on the Ohio River and its tributaries. Th... More
Dredge CINCINNATI, Docked on Ohio River at foot of Lighthill Street, P...
Significance: The Cincinnati is a "dipper dredge," particularly suited to the shallow, rocky conditions of American inland waterways. The dredge operated for 78 years on the Ohio River and its tributaries. Th... More
Union Canal Locks, Bernville, Berks County, PA
Significance: The ruins of these locks document 19th-century canal technology, and illustrate the importance of water transportation in the first half of the century. Although the Union Canal failed to become ... More
Union Canal Locks, Bernville, Berks County, PA
Significance: The ruins of these locks document 19th-century canal technology, and illustrate the importance of water transportation in the first half of the century. Although the Union Canal failed to become ... More
Isla de Mona Light, Mona Island, Cabo Rojo, Cabo Rojo Municipio, PR
Significance: Mona Island Light is the only existing lighthouse for which two entirely different plans were drawn between 1885-1886. The first plan called for a 2nd class light, 22 miles range light beam, 3 ke... More
Isla de Mona Light, Mona Island, Cabo Rojo, Cabo Rojo Municipio, PR
Significance: Mona Island Light is the only existing lighthouse for which two entirely different plans were drawn between 1885-1886. The first plan called for a 2nd class light, 22 miles range light beam, 3 ke... More
Isla de Mona Light, Mona Island, Cabo Rojo, Cabo Rojo Municipio, PR
Significance: Mona Island Light is the only existing lighthouse for which two entirely different plans were drawn between 1885-1886. The first plan called for a 2nd class light, 22 miles range light beam, 3 ke... More
Isla de Mona Light, Mona Island, Cabo Rojo, Cabo Rojo Municipio, PR
Significance: Mona Island Light is the only existing lighthouse for which two entirely different plans were drawn between 1885-1886. The first plan called for a 2nd class light, 22 miles range light beam, 3 ke... 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