Drying up the grass above a retaining wall

[Slade]

I have 140 ft. long 4ft. high retaining wall. I built a french drain along the wall that empties into a drainage system. But since the soil is pretty much clay, other than standing water it is slow to drain, leaving that area of grass wet most of the time. I'm looking for ideas to amend the soil to improve the speed of drainage. I have a few tons of sand left over from some projects. Would slowly adding sand to the area, say 1/2 inch every 3-6 months help, or would it just wash away? Any other ideas?

Thanks

 

[KennyV]

Slade if you core aerate and then top dress with the sand, like you suggest.... it will help the drainage some, it will help the soil a lot:smile:. KennyV.

 

[rekees]

Could the drain pipe be clogged with clay and soil particles?