Missouri’s Oxbow Lakes. Georganne Bowman Water Protection Program DNR January 24, 2006. Oxbow Lakes. How do oxbows form? Missouri’s oxbows: What’s the water like? What are they good for? How should we manage oxbows?. Large river flood plains. Snake-like meanders.
Water Protection Program
January 24, 2006
Maintains gradient and velocity.How Do Oxbows Form?
1) The water on the inside of the loop, travels slower than the water on the outside edge. This leads to deposition of sediment in the corners.
2) Meanwhile, water on the outside of the turn flows faster, which erodes the banks making the meander even wider.
3) The neck of the “yoke” closes in.
4) During a high flow event, the meander cuts off from the main channel. A horseshoe shaped oxbow lake forms.
Approximately 24 classifiedMissouri’s Oxbows
Big Lake State Park:
“As a part of the Page Avenue Extension, MoDOT will dredge the main body of the lake. The dredging will restore the lake to a minimum depth of 10 feet.” -Creve Coeur ($10,000,000)
“The state will spend up to $2,000 per year — to ease the costs of pumping — at some oxbow lakes.” - St Joseph News Press
Water level control for waterfowl hunting.
Oxbow lakes united
State officials should work
St. Joseph News-Press (11/20/05)
Oxbow lakes pose a very tricky conundrum for the state of Missouri and the people who live on the shores of those lakes.
The lakes belong technically to the state. But when it comes to keeping the lakes from drying up, the burden lands mainly on local landowners.