a narrow shelf, path, or ledge typically at the top or bottom of a slope; also : a mound or wall of earth or sand.It sounded much like a dam to me except I think it has to be built up against something solid. Notice the words "I think". I'm not going to claim to know much of anything on this subject but I'll show you what is being built on campus and perhaps you'll get a fuller picture of what a berm really is.
You may remember that a portion of the wall around our campus collapsed. This is what it looked like directly after the flooding.
That section of the wall has now been rebuilt.
As you can see, a shorter wall has been built about six feet away from the outer wall. This does not extend all around the campus but does stretch from corner to corner in the areas that were under the most pressure from the flood waters.
The short inner wall varies in height based on the height to which the flood waters rose. In the above picture the wall was at knee level. The duplex built just in front of this wall experienced very little flooding. Whereas our soccer field is lower ground so the wall comes to about chest level on me.
Once the short inner wall is completed...
the area between it and the outer wall is being filled with dirt.
The idea is that should the river flood again this berm will reinforce the wall and hold back the water.
Please continue to pray for the completion of this project and wisdom for those who are working on it.