Pond Boss Forums INTRO Questions & Observations building a retaining wall

Years ago Dad and I installed steel retaining wall that's interlocked and looks like a "W". 3' to 4' out of the water and IIRC 3' below the sand. After 34 years it's starting to bow out (towards the lake), but we didn't use any earth anchors. We backfilled a good 2' in depth behind it. I can call him and see if he remembers just how long we cut the pieces, and I can take pics if you want. This is 75' long.