Tags: Dam.

Lock and Dam No. 21 is a lock and dam located at Quincy Illinois on the Upper Mississippi River around river mile 324.9. The movable portion of the dam is 1265 feet (385.6 m) long and consists of three roller gates and ten tainter gates. A 1400 feet (426.7 m) long submersible dike continues to the Missouri shore. The main lock is 110 feet (33.5 m) wide by 600 feet (182.9 m) long and there is also an incomplete auxiliary lock.

Mississippi_River_Lock_and_Dam_number_21_HAER.jpg
length (km)
385.572
building start year
1933-01-01T00:00:00+02:00
location
Adams County Illinois, Marion County Missouri, Quincy Illinois, Melrose Township Adams County Illinois, United States
opening date
1938-07-23
opening year
1938-01-01T00:00:00+02:00
operator
United States Army Corps of Engineers
river
Upper Mississippi River
latitude
39.9061
longitude
-91.4322

Loading...

This page contains content from the copyrighted Wikipedia article "Lock and Dam No. 21"; that content is used under the GNU Free Documentation License (GFDL). You may redistribute it, verbatim or modified, providing that you comply with the terms of the GFDL.