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Highways, Byways, And Bridge Photography
Lock & Dam #25
Mississippi River Lock & Dam
Winfield, Missouri

Lock & Dam #25

• Structure: Lock & Dam #25.
• Location: River Mile 241.4.
• Dam Width: 4,400 Feet Overall, 1,296 Main Structure.
• River Elevation (Pool): 434.1 Feet.
• River Elevation (Outflow): 419.8 Feet.
• Water Fall: 14.3 Feet.
• Annual Lock Traffic: 4,272 Vessels, 29,044 Tons (2005).
• Date Opened: May 18, 1939.
Dam was constructed with a combination of roller gates and Tainter gates. Roller gates are an older proven technology. Tainter gates are a newer invention that has the advantage of being moved completely out of the path of the flowing water. This prevents the gates from being fouled with debris during periods of high water.

There is a toll auto ferry service crossing the Mississippi River just below Lock & Dam #25. The last photo shows a view of the dam from inside a vehicle while crossing the river. This allows once to see directly into the lock. Like the Lock & Dam #24 photos, we see that part of a barge tow is tied up below the lock while the other part of the tow is being pushed through the lock.

The east side of the Mississippi is part of a finger of land that lies between the Mississippi River and the Illinois River. Known as the land between the rivers, it is a highly productive farming area. But at the same time, it is remote and desolate, with little in the line of gas stations or other places to stop while traveling. It is amazing that one can be only a few dozen air miles from a major city like Saint Louis, yet be in an area that feels like the land that time forgot.


Lock & Dam #25
Lock & Dam #25
Lock & Dam #25
Lock & Dam #25
Lock & Dam #25

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