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lift locks

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Lehigh Canal, Lock 10, 2,300 feet south of Weissport-Lehighton Bridge, Weissport, Carbon County, PA

Lehigh Canal, Lock 10, 2,300 feet south of Weissport-Lehighton Bridge,...

Significance: 22 by 100 foot lock constructed in 1829 by the Lehigh Coal and Navigation Company. The tenth of twelve locks in the 5.5 mile Section One between Dam 1 at Jim Thorpe and the outlet lock at Parryvi... More

Lehigh Canal, Lock 40, Lehigh Canal where River & Canal turn North, Allentown, Lehigh County, PA

Lehigh Canal, Lock 40, Lehigh Canal where River & Canal turn North, Al...

Significance: 22 by 100 foot lock constructed in 1829 by the Lehigh Coal and Navigation Company. The second of eight locks in the long 11.1 mile Section Seven between Dam 7, a half mile to the north, and the o... More

Lehigh Canal, Lock 25, 800 feet south of Walnutport-Slatington Bridge, Walnutport, Northampton County, PA

Lehigh Canal, Lock 25, 800 feet south of Walnutport-Slatington Bridge,...

Significance: 22 by 100 foot lock constructed by the Lehigh Coal and Navigation Company. The third of seven locks (originally eight) in the four mile Section Three between the Lehigh Gap Dam and the outlet loc... More

Lehigh Canal, Lock 44, North end of Freemansburg Borough, Freemansburg, Northampton County, PA

Lehigh Canal, Lock 44, North end of Freemansburg Borough, Freemansburg...

Significance: The lock was constructed in 1829 by the Lehigh Coal and Navigation Company. The adjacent two and one-half story lockhouse (title is in dispute at present) is believed to be the last original lock... More

Lehigh Canal, Outlet Lock, Canal Street, Easton, Northampton County, PA
Illinois & Michigan Canal, Lift Lock No. 10, West of Chicago Street, Marseilles, La Salle County, IL
Monongahela Navigation Company Lock & Dam No. 7, River Mile No. 82.5, Greensboro, Greene County, PA

Monongahela Navigation Company Lock & Dam No. 7, River Mile No. 82.5, ...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-299, Monongahela Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Improvements. Individ... More

Monongahela Navigation Company Lock & Dam No. 7, River Mile No. 82.5, Greensboro, Greene County, PA

Monongahela Navigation Company Lock & Dam No. 7, River Mile No. 82.5, ...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-299, Monongahela Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Improvements. Individ... More

Monongahela Navigation Company Lock & Dam No. 7, River Mile No. 82.5, Greensboro, Greene County, PA

Monongahela Navigation Company Lock & Dam No. 7, River Mile No. 82.5, ...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-299, Monongahela Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Improvements. Individ... More

Monongahela Navigation Company Lock & Dam No. 7, River Mile No. 82.5, Greensboro, Greene County, PA

Monongahela Navigation Company Lock & Dam No. 7, River Mile No. 82.5, ...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-299, Monongahela Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Improvements. Individ... More

Monongahela Navigation Company Lock & Dam No. 7, River Mile No. 82.5, Greensboro, Greene County, PA

Monongahela Navigation Company Lock & Dam No. 7, River Mile No. 82.5, ...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-299, Monongahela Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Improvements. Individ... More

Illinois & Michigan Canal, Lift Lock No. 15, Canal Station 5087+00, La Salle, La Salle County, IL

Illinois & Michigan Canal, Lift Lock No. 15, Canal Station 5087+00, La...

Significance: Lock No. 15 in LaSalle was one of the original locks designed by William Gooding, Chief Engineer, for the I&M Canal. Survey number: HAER IL-72 Building/structure dates: 1848 Initial Construction... More

Illinois & Michigan Canal, Lift Lock No. 15, Canal Station 5087+00, La Salle, La Salle County, IL

Illinois & Michigan Canal, Lift Lock No. 15, Canal Station 5087+00, La...

Significance: Lock No. 15 in LaSalle was one of the original locks designed by William Gooding, Chief Engineer, for the I&M Canal. Survey number: HAER IL-72 Building/structure dates: 1848 Initial Construction... More

Illinois & Michigan Canal, Lift Lock No. 15, Canal Station 5087+00, La Salle, La Salle County, IL

Illinois & Michigan Canal, Lift Lock No. 15, Canal Station 5087+00, La...

Significance: Lock No. 15 in LaSalle was one of the original locks designed by William Gooding, Chief Engineer, for the I&M Canal. Survey number: HAER IL-72 Building/structure dates: 1848 Initial Construction... More

Illinois & Michigan Canal, Lift Lock No. 15, Canal Station 5087+00, La Salle, La Salle County, IL

Illinois & Michigan Canal, Lift Lock No. 15, Canal Station 5087+00, La...

Significance: Lock No. 15 in LaSalle was one of the original locks designed by William Gooding, Chief Engineer, for the I&M Canal. Survey number: HAER IL-72 Building/structure dates: 1848 Initial Construction... More

Illinois & Michigan Canal, Lift Lock No. 15, Canal Station 5087+00, La Salle, La Salle County, IL

Illinois & Michigan Canal, Lift Lock No. 15, Canal Station 5087+00, La...

Significance: Lock No. 15 in LaSalle was one of the original locks designed by William Gooding, Chief Engineer, for the I&M Canal. Survey number: HAER IL-72 Building/structure dates: 1848 Initial Construction... More

Illinois & Michigan Canal, Lift Lock No. 15, Canal Station 5087+00, La Salle, La Salle County, IL

Illinois & Michigan Canal, Lift Lock No. 15, Canal Station 5087+00, La...

Significance: Lock No. 15 in LaSalle was one of the original locks designed by William Gooding, Chief Engineer, for the I&M Canal. Survey number: HAER IL-72 Building/structure dates: 1848 Initial Construction... More

Schuylkill Canal, Bausman's Lock No. 12, Coal Street & Garfield Creek, Schuylkill Haven, Schuylkill County, PA

Schuylkill Canal, Bausman's Lock No. 12, Coal Street & Garfield Creek,...

Significance: As an important part of the Schuylkill Canal system, Bausman's Lock played a significant role in the history of Pennsylvania until 1888 when competition from the railroads forced it to close. Alm... More

Schuylkill Canal, Bausman's Lock No. 12, Coal Street & Garfield Creek, Schuylkill Haven, Schuylkill County, PA

Schuylkill Canal, Bausman's Lock No. 12, Coal Street & Garfield Creek,...

Significance: As an important part of the Schuylkill Canal system, Bausman's Lock played a significant role in the history of Pennsylvania until 1888 when competition from the railroads forced it to close. Alm... More

Schuylkill Canal, Bausman's Lock No. 12, Coal Street & Garfield Creek, Schuylkill Haven, Schuylkill County, PA

Schuylkill Canal, Bausman's Lock No. 12, Coal Street & Garfield Creek,...

Significance: As an important part of the Schuylkill Canal system, Bausman's Lock played a significant role in the history of Pennsylvania until 1888 when competition from the railroads forced it to close. Alm... More

Schuylkill Canal, Bausman's Lock No. 12, Coal Street & Garfield Creek, Schuylkill Haven, Schuylkill County, PA

Schuylkill Canal, Bausman's Lock No. 12, Coal Street & Garfield Creek,...

Significance: As an important part of the Schuylkill Canal system, Bausman's Lock played a significant role in the history of Pennsylvania until 1888 when competition from the railroads forced it to close. Alm... More

Schuylkill Canal, Bausman's Lock No. 12, Coal Street & Garfield Creek, Schuylkill Haven, Schuylkill County, PA

Schuylkill Canal, Bausman's Lock No. 12, Coal Street & Garfield Creek,...

Significance: As an important part of the Schuylkill Canal system, Bausman's Lock played a significant role in the history of Pennsylvania until 1888 when competition from the railroads forced it to close. Alm... More

Schuylkill Canal, Bausman's Lock No. 12, Coal Street & Garfield Creek, Schuylkill Haven, Schuylkill County, PA

Schuylkill Canal, Bausman's Lock No. 12, Coal Street & Garfield Creek,...

Significance: As an important part of the Schuylkill Canal system, Bausman's Lock played a significant role in the history of Pennsylvania until 1888 when competition from the railroads forced it to close. Alm... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Greene County, PA

Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More

Chicago Sanitary and Ship Canal, Lockport Lock, 2502 Channel Drive, Lockport, Will County, IL

Chicago Sanitary and Ship Canal, Lockport Lock, 2502 Channel Drive, Lo...

Significance: Located at the terminus of the Chicago Sanitary and Ship Canal, the Lockport Lock has a 40' lift, reportedly making it the highest lift lock at the time of its completion in 1910. The Lockport Lo... More

Chicago Sanitary and Ship Canal, Lockport Lock, 2502 Channel Drive, Lockport, Will County, IL

Chicago Sanitary and Ship Canal, Lockport Lock, 2502 Channel Drive, Lo...

Significance: Located at the terminus of the Chicago Sanitary and Ship Canal, the Lockport Lock has a 40' lift, reportedly making it the highest lift lock at the time of its completion in 1910. The Lockport Lo... More

Chicago Sanitary and Ship Canal, Lockport Lock, 2502 Channel Drive, Lockport, Will County, IL

Chicago Sanitary and Ship Canal, Lockport Lock, 2502 Channel Drive, Lo...

Significance: Located at the terminus of the Chicago Sanitary and Ship Canal, the Lockport Lock has a 40' lift, reportedly making it the highest lift lock at the time of its completion in 1910. The Lockport Lo... More

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mile point 18.6, along State Route 65, Ambridge, Beaver County, PA

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mi...

Significance: Ohio Slack Water Dams, Lock and Dam No. 4, HAER No. PA-227-A was part of the fifty-two slackwater locks and dams constructed by the U.S. Army Corps of Engineers on the Ohio River, between 1877-191... More

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mile point 18.6, along State Route 65, Ambridge, Beaver County, PA

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mi...

Significance: Ohio Slack Water Dams, Lock and Dam No. 4, HAER No. PA-227-A was part of the fifty-two slackwater locks and dams constructed by the U.S. Army Corps of Engineers on the Ohio River, between 1877-191... More

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mile point 18.6, along State Route 65, Ambridge, Beaver County, PA

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mi...

Significance: Ohio Slack Water Dams, Lock and Dam No. 4, HAER No. PA-227-A was part of the fifty-two slackwater locks and dams constructed by the U.S. Army Corps of Engineers on the Ohio River, between 1877-191... More

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mile point 18.6, along State Route 65, Ambridge, Beaver County, PA

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mi...

Significance: Ohio Slack Water Dams, Lock and Dam No. 4, HAER No. PA-227-A was part of the fifty-two slackwater locks and dams constructed by the U.S. Army Corps of Engineers on the Ohio River, between 1877-191... More

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mile point 18.6, along State Route 65, Ambridge, Beaver County, PA

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mi...

Significance: Ohio Slack Water Dams, Lock and Dam No. 4, HAER No. PA-227-A was part of the fifty-two slackwater locks and dams constructed by the U.S. Army Corps of Engineers on the Ohio River, between 1877-191... More

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mile point 18.6, along State Route 65, Ambridge, Beaver County, PA

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mi...

Significance: Ohio Slack Water Dams, Lock and Dam No. 4, HAER No. PA-227-A was part of the fifty-two slackwater locks and dams constructed by the U.S. Army Corps of Engineers on the Ohio River, between 1877-191... More

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mile point 18.6, along State Route 65, Ambridge, Beaver County, PA

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mi...

Significance: Ohio Slack Water Dams, Lock and Dam No. 4, HAER No. PA-227-A was part of the fifty-two slackwater locks and dams constructed by the U.S. Army Corps of Engineers on the Ohio River, between 1877-191... More

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mile point 18.6, along State Route 65, Ambridge, Beaver County, PA

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mi...

Significance: Ohio Slack Water Dams, Lock and Dam No. 4, HAER No. PA-227-A was part of the fifty-two slackwater locks and dams constructed by the U.S. Army Corps of Engineers on the Ohio River, between 1877-191... More

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mile point 18.6, along State Route 65, Ambridge, Beaver County, PA

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mi...

Significance: Ohio Slack Water Dams, Lock and Dam No. 4, HAER No. PA-227-A was part of the fifty-two slackwater locks and dams constructed by the U.S. Army Corps of Engineers on the Ohio River, between 1877-191... More

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mile point 18.6, along State Route 65, Ambridge, Beaver County, PA

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mi...

Significance: Ohio Slack Water Dams, Lock and Dam No. 4, HAER No. PA-227-A was part of the fifty-two slackwater locks and dams constructed by the U.S. Army Corps of Engineers on the Ohio River, between 1877-191... More

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mile point 18.6, along State Route 65, Ambridge, Beaver County, PA

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mi...

Significance: Ohio Slack Water Dams, Lock and Dam No. 4, HAER No. PA-227-A was part of the fifty-two slackwater locks and dams constructed by the U.S. Army Corps of Engineers on the Ohio River, between 1877-191... More

Davis Island Dam & Lock No. 1, Ohio River, mile 4.7 on right bank, Pittsburgh, Allegheny County, PA

Davis Island Dam & Lock No. 1, Ohio River, mile 4.7 on right bank, Pit...

Includes index to related materials in National Archives RG 77. Significance: As the first lock and dam on the Ohio River, the Davis Island Lock and Dam was an experimental project testing the skills of the 19t... More

Davis Island Dam & Lock No. 1, Ohio River, mile 4.7 on right bank, Pittsburgh, Allegheny County, PA

Davis Island Dam & Lock No. 1, Ohio River, mile 4.7 on right bank, Pit...

Includes index to related materials in National Archives RG 77. Significance: As the first lock and dam on the Ohio River, the Davis Island Lock and Dam was an experimental project testing the skills of the 19t... More

Davis Island Dam & Lock No. 1, Ohio River, mile 4.7 on right bank, Pittsburgh, Allegheny County, PA

Davis Island Dam & Lock No. 1, Ohio River, mile 4.7 on right bank, Pit...

Includes index to related materials in National Archives RG 77. Significance: As the first lock and dam on the Ohio River, the Davis Island Lock and Dam was an experimental project testing the skills of the 19t... More

Davis Island Dam & Lock No. 1, Ohio River, mile 4.7 on right bank, Pittsburgh, Allegheny County, PA

Davis Island Dam & Lock No. 1, Ohio River, mile 4.7 on right bank, Pit...

Includes index to related materials in National Archives RG 77. Significance: As the first lock and dam on the Ohio River, the Davis Island Lock and Dam was an experimental project testing the skills of the 19t... More

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, Savannah, Chatham County, GA

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, S...

For additional documentation, see also HALS GA-5 (Savannah-Ogeechee Canal) Significance: The Savannah and Ogeechee Canal was the first barge canal built in Georgia. Built during the 'canal building' era of Ame... More

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, Savannah, Chatham County, GA

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, S...

For additional documentation, see also HALS GA-5 (Savannah-Ogeechee Canal) Significance: The Savannah and Ogeechee Canal was the first barge canal built in Georgia. Built during the 'canal building' era of Ame... More

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, Savannah, Chatham County, GA

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, S...

For additional documentation, see also HALS GA-5 (Savannah-Ogeechee Canal) Significance: The Savannah and Ogeechee Canal was the first barge canal built in Georgia. Built during the 'canal building' era of Ame... More

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, Savannah, Chatham County, GA

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, S...

For additional documentation, see also HALS GA-5 (Savannah-Ogeechee Canal) Significance: The Savannah and Ogeechee Canal was the first barge canal built in Georgia. Built during the 'canal building' era of Ame... More

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, Savannah, Chatham County, GA

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, S...

For additional documentation, see also HALS GA-5 (Savannah-Ogeechee Canal) Significance: The Savannah and Ogeechee Canal was the first barge canal built in Georgia. Built during the 'canal building' era of Ame... More

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, Savannah, Chatham County, GA

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, S...

For additional documentation, see also HALS GA-5 (Savannah-Ogeechee Canal) Significance: The Savannah and Ogeechee Canal was the first barge canal built in Georgia. Built during the 'canal building' era of Ame... More

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, Savannah, Chatham County, GA

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, S...

For additional documentation, see also HALS GA-5 (Savannah-Ogeechee Canal) Significance: The Savannah and Ogeechee Canal was the first barge canal built in Georgia. Built during the 'canal building' era of Ame... More

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, Savannah, Chatham County, GA

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, S...

For additional documentation, see also HALS GA-5 (Savannah-Ogeechee Canal) Significance: The Savannah and Ogeechee Canal was the first barge canal built in Georgia. Built during the 'canal building' era of Ame... More

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, Savannah, Chatham County, GA

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, S...

For additional documentation, see also HALS GA-5 (Savannah-Ogeechee Canal) Significance: The Savannah and Ogeechee Canal was the first barge canal built in Georgia. Built during the 'canal building' era of Ame... More

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, Savannah, Chatham County, GA

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, S...

For additional documentation, see also HALS GA-5 (Savannah-Ogeechee Canal) Significance: The Savannah and Ogeechee Canal was the first barge canal built in Georgia. Built during the 'canal building' era of Ame... More

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, Savannah, Chatham County, GA

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, S...

For additional documentation, see also HALS GA-5 (Savannah-Ogeechee Canal) Significance: The Savannah and Ogeechee Canal was the first barge canal built in Georgia. Built during the 'canal building' era of Ame... More

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, Savannah, Chatham County, GA

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, S...

For additional documentation, see also HALS GA-5 (Savannah-Ogeechee Canal) Significance: The Savannah and Ogeechee Canal was the first barge canal built in Georgia. Built during the 'canal building' era of Ame... More

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, Savannah, Chatham County, GA

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, S...

For additional documentation, see also HALS GA-5 (Savannah-Ogeechee Canal) Significance: The Savannah and Ogeechee Canal was the first barge canal built in Georgia. Built during the 'canal building' era of Ame... More

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, Savannah, Chatham County, GA

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, S...

For additional documentation, see also HALS GA-5 (Savannah-Ogeechee Canal) Significance: The Savannah and Ogeechee Canal was the first barge canal built in Georgia. Built during the 'canal building' era of Ame... More

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, Savannah, Chatham County, GA

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, S...

For additional documentation, see also HALS GA-5 (Savannah-Ogeechee Canal) Significance: The Savannah and Ogeechee Canal was the first barge canal built in Georgia. Built during the 'canal building' era of Ame... More

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, Savannah, Chatham County, GA

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, S...

For additional documentation, see also HALS GA-5 (Savannah-Ogeechee Canal) Significance: The Savannah and Ogeechee Canal was the first barge canal built in Georgia. Built during the 'canal building' era of Ame... More

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, Savannah, Chatham County, GA

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, S...

For additional documentation, see also HALS GA-5 (Savannah-Ogeechee Canal) Significance: The Savannah and Ogeechee Canal was the first barge canal built in Georgia. Built during the 'canal building' era of Ame... More

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, Savannah, Chatham County, GA

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, S...

For additional documentation, see also HALS GA-5 (Savannah-Ogeechee Canal) Significance: The Savannah and Ogeechee Canal was the first barge canal built in Georgia. Built during the 'canal building' era of Ame... More

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, Savannah, Chatham County, GA

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, S...

For additional documentation, see also HALS GA-5 (Savannah-Ogeechee Canal) Significance: The Savannah and Ogeechee Canal was the first barge canal built in Georgia. Built during the 'canal building' era of Ame... More

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, Savannah, Chatham County, GA

Savannah & Ogeechee Barge Canal, Between Ogeechee & Savannah Rivers, S...

For additional documentation, see also HALS GA-5 (Savannah-Ogeechee Canal) Significance: The Savannah and Ogeechee Canal was the first barge canal built in Georgia. Built during the 'canal building' era of Ame... More

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