Lock and Dam 25, Winfield, Missouri
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Lock and Dam 25 is equipped the 1,296-foot long dam structure with three submersible roller gates (near the center of the structure, see image at right) and 14 submersible tainter gates. At the time of construction, the submersible gates represented a marked advance in gate design and were seen as an improvement over non-submersible gates because they allowed for the almost unobstructed flow of floodwaters, ice and debris.
Having opened on May 18, 1939, Lock and Dam 25 is well beyond its 50-year design life and is currently undergoing major rehabilitation. |
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Vital Statistics
| Location: Winfield, Mo. |
Mississippi River Mile: 241.4 |
1st Day of Operation:
May 18, 1939 |
Average lift: 15 feet |
| Pool size: 18,000 acres |
Pool length: 27.8 miles |
Lock Characteristics:
Single Lock
600 feet long
110 feet wide |
Dam Characteristics:
1,296 feet long
14 Tainter Gates
3 Roller Gates |
| Phone number: (636) 566-8120 |
Marine Radio: Channel 12 |
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Annual Tonnage |
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Year |
Tonnage |
Lockages |
| 2009 |
26,926,504 |
4,545 |
| 2007 |
30,204,744 |
5,314 |
2005 |
29,043,655 |
4,886 |
2003 |
33,749,527 |
5,614 |
2001 |
34,858,294 |
6,008 |
1999 |
39,536,830 |
6,777 |
1997 |
33,638,634 |
6,132 |
1995 |
37,432,909 |
6,654 |
1993 |
26,560,658 |
4,687 |
1991 |
37,758,657 |
7,394 |
1989 |
36,218,686 |
7,118 |
1987 |
35,319,224 |
6,720 |
1985 |
26,109,104 |
5,389 |
1983 |
37,439,016 |
7,319 |
1981 |
34,309,187 |
7,067 |
1979 |
28,638,386 |
Na |
1977 |
25,093,200 |
5,671 |
1975 |
23,712,446 |
5,336 |
1973 |
22,706,350 |
5,085 |
1971 |
21,430,888 |
5,580 |
1969 |
18,622,522 |
4,715 |
1967 |
16,355,932 |
4,906 |
1965 |
13,425,723 |
4,287 |
1963 |
12,599,623 |
4,345 |
1961 |
9,762,001 |
3,866 |
1959 |
9,154,872 |
3,834 |
1957 |
7,460,929 |
3,383 |
1955 |
6,530,038 |
2,974 |
1953 |
5,072,640 |
2,870 |
1951 |
4,225,148 |
2,187 |
1949 |
3,654,954 |
2,634 |
1947 |
3,120,342 |
2,068 |
1945 |
2,033,557 |
1,695 |
1943 |
1,608,788 |
1,687 |
1941 |
1,974,121 |
2,189 |
1939 |
1,122,824 |
1,645 |
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Year |
Tonnage |
Lockages |
2008 |
23,244,934 |
3,929 |
2006 |
31,026,288 |
4,971 |
2004 |
27,894,562 |
4,795 |
2002 |
38,916,145 |
6,601 |
2000 |
39,177,450 |
6,623 |
1998 |
34,819,845 |
6,110 |
1996 |
36,088,709 |
6,652 |
1994 |
30,758,651 |
5,658 |
1992 |
39,378,151 |
7,282 |
1990 |
42,339,143 |
7,923 |
1988 |
37,875,033 |
7,326 |
1986 |
28,159,960 |
5,681 |
1984 |
36,167,255 |
7,027 |
1982 |
32,767,055 |
6,586 |
1980 |
32,519,470 |
6,770 |
1978 |
29,041,957 |
6,100 |
1976 |
24,781,578 |
5,708 |
1974 |
24,292,547 |
5,374 |
1972 |
24,611,927 |
5,785 |
1970 |
22,175,609 |
5,327 |
1968 |
16,547,642 |
5,146 |
1966 |
15,857,490 |
4,803 |
1964 |
13,408,798 |
4,664 |
1962 |
10,814,046 |
4,023 |
1960 |
9,686,116 |
3,737 |
1958 |
8,464,618 |
3,646 |
1956 |
6,792,648 |
2,884 |
1954 |
5,675,246 |
2,914 |
1952 |
4,044,774 |
2,276 |
1950 |
4,323,837 |
2,571 |
1948 |
3,252,308 |
2,341 |
1946 |
2,989,198 |
2,570 |
1944 |
1,875,881 |
1,624 |
1942 |
1,987,289 |
2,447 |
1940 |
1,570,167 |
2,188 |
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Lock & Dam 
