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Lock and Dam 24

Lock & Dam 24


Lock and Dam 24 was the first dam on the Upper Mississippi River 9-Foot Channel Project constructed without roller gates. It was designed with the highest level of tainter gate technology available and incorporated 15, 80-foot long, fully submersible tainter gates into the 1,340-foot long dam. These tainter gates were innovative that they rendered roller gate technology, the principle engineering feature in dam construction at the time, obsolete. Having opened on May 12, 1940, Lock and Dam 24 has well exceeded its 50-year design life and is currently undergoing major rehabilitation.

Location: Clarksville, Mo.
Mississippi River Mile: 273.4
1st Day of Operation: Mar. 12, 1940
Average lift: 15 feet
Pool size: 29,750 acre feet
Pool length: 27.8 miles
Lock characteristics:
Single Lock, 600 feet long, 110 feet wide
Dam Characteristics:
1,340 feet long, 15 Tainter Gates
Phone number: (573) 242-3524
Marine Radio: 14
Year Tonnage Lockages
2009
26,682,701
4,282
2008
23,133,551
3,616
2007
30,145,700
4,816
2006
31,061,559
4,642
2005
28,932,976
4,403
2004
27,883,604
4,370
2003
33,761,938
5,268
2002
38,864,614
6,196
2001
34,785,352
5,601
2000
38,697,993
6,282
1999
39,296,994
6,504
1998
34,747,480
5,767
1997
33,614,330
5,835
1996
36,181,599
6,481
1995
37,540,528
6,537
1994
30,735,288
5,331
1993
26,581,272
4,657
1992
39,423,782
7,078
1991
37,595,771
6,897
1990
42,352,920
7,670
1989
36,137,676
6,719
1988
37,885,828
7,060
1987
35,313,874
6,459
1986
28,162,425
5,199
1985
26,101,054
5,040
1984
35,962,865
6,536
1983
37,345,441
7,039
1982
32,731,049
6,264
1981
34,002,095
6,729
1980
32,731,049
6,601
1979
28,562,788
Na
1978
28,928,612
5,893
1977
25,057,500
5,248
1976
24,588,373
5,386
1975
23,713,451
5,058
1974
24,522,995
5,157
1973
22,940,935
4,914
1972
24,941,149
5,384
1971
21,563,788
5,250
1970
22,209,505
4,938
1969
18,371,594
4,344
1968
16,663,104
4,688
1967
16,312,126
4,211
1966
15,915,016
4,078
1965
13,312,470
3,585
1964
13,312,470
4,084
1963
12,611,627
3,827
1962
10,865,245
3,801
1961
9,638,452
3,367
1960
9,711,261
3,408
1959
9,180,898
3,398
1958
8,446,256
3,386
1957
7,437,070
3,288
1956
6,783,763
3,146
1955
6,505,230
2,001
1954
5,649,694
2,437
1953
5,053,533
2,337
1952
4,042,095
2,028
1951
4,199,346
1,991
1950
4,305,665
2,260
1949
3,645,372
2,553
1948
3,224,357
2,179
1947
3,149,689
1,706
1946
2,977,872
1,818
1945
2,029,925
1,214
1944
1,878,290
1,120
1943
1,669,539
1,051
1942
1,968,730
1,410
1941
1,975,878
2,214
1940
1,578,624
1,719