Enlarged Double Lock No. 33 Old Erie Canal is a historic

Erie canal The Erie Canal is a historic canal in upstate New York that runs east-west between the Hudson River and Lake Erie. Completed in 1825, the canal was the first navigable waterway connecting the Atlantic Ocean to the Great Lakes, vastly reducing t ...

lock Lock(s) may refer to: Common meanings *Lock and key, a mechanical device used to secure items of importance *Lock (water navigation), a device for boats to transit between different levels of water, as in a canal Arts and entertainment * ''Lock ...

located at St. Johnsville in

Montgomery County, New York Montgomery County is a county in the U.S. state of New York. As of the 2020 census, the population was 49,532. The county seat is Fonda. The county was named in honor of Richard Montgomery, an American Revolutionary War general killed in 17 ...

. It was built in 1824 and enlarged in 1840. The south lock was enlarged in 1888. It is built entirely of large cut

limestone Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms whe ...

blocks mortared with hydraulic

cement A cement is a binder, a chemical substance used for construction that sets, hardens, and adheres to other materials to bind them together. Cement is seldom used on its own, but rather to bind sand and gravel ( aggregate) together. Cement mi ...

. Lock 33 fell into disuse after the opening of the

New York State Barge Canal New is an adjective referring to something recently made, discovered, or created. New or NEW may refer to: Music * New, singer of K-pop group The Boyz Albums and EPs * ''New'' (album), by Paul McCartney, 2013 * ''New'' (EP), by Regurgitator, ...

in 1918. Since 1997, it has been reclaimed and restored by local volunteers. ''Note:'' This includes an
''Accompanying eight photographs''
/ref> It was added to the

National Register of Historic Places The National Register of Historic Places (NRHP) is the United States federal government's official list of districts, sites, buildings, structures and objects deemed worthy of preservation for their historical significance or "great artistic ...

in 2002.

References

Erie Canal parks, trails, and historic sites Locks on the National Register of Historic Places in New York (state) Infrastructure completed in 1840 Buildings and structures in Montgomery County, New York Infrastructure completed in 1888 National Register of Historic Places in Montgomery County, New York {{MontgomeryCountyNY-NRHP-stub