Help! Paver Sidewalk Cut-out: Erosion Problems. Retaining Wall?
I've posted a separate entry in this forum regarding my sidewalk pavers:
Long story short:
I pulled-up and re-laid 18" hex concrete pavers on our city sidewalk due to cracked/broken pavers, uneven surface, etc. It's a sloping hill there, about 4-5%.
As part of this, I had to narrow the sidewalk around a mature pecan tree. I reduced the width there from 6' to 3' to accommodate roots. This left a 3-foot by 15-foot bed around the tree (around 7.5' on either side of the tree). I mulched this area and planted it with hostas and liriope. (shady area)
The problem came with the rain yesterday--I didn't have any kind of border next to the sidewalk pavers. The rain came down the hill, washed-out the mulch, and eroded the sand under some of the pavers, thus compromising the sidewalk.
The question is--can I simply install a wooden border next to the pavers, such as a 1x4 rail or do I need to build a retaining wall and make a level, rather than sloping, bed around the tree to prevent wash-out?
Thanks--rapid replies appreciated, as the rain is returning in a few days!
1. Problem AreaÂFlooded, Before Resetting Pavers
2. SidewalkÂAfter Resetting Pavers, Looking Down (pavers at tree were raised subsequent to this photo)
3. SidewalkÂAfter Resetting Pavers, Looking Up (pavers at tree were raised subsequent to this photo)
4. Plan (Note: bed around tree expanded during construction due to addl. tree roots discovered; now it's approx 3'x15')
5. Sidewalk after rain: mulch washed-out, bed sand at end
6. Sidewalk after rain: top edge, sand & dirt
7. Sidewalk after rain: side edge, erosion, compromised pavers
8. Compromised paver