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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 March 12, 1940, Lock and Dam 24 has well exceeded its 50-year design life.

Vital Statistics

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

Annual Tonnage

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