Ok bought this house about ten years ago. It has a small sloped back yard with a privacy fence. Over the last couple years I have noticed holes opening under a couple spot under the fence, where cats and other nuisance critters have been getting in. More concerning though, it kinda seemed like my yard was very slowly eroding away back there given the holes. I have to drive around back literally to see what was going on. Well these pics show it. My adjacent neighbor, the builders (I assume) put a railroad tie retaining wall. Further down my neighbors have stone retaining walls as needed. In some spots retaining walls arent needed. Their is a ditch that drops off out back But my house has nothing. Great.
Here is pics:
This is a longer shot of behind my neighbors fence. All these shots are from the BACK of my fence, behind it. Since my back yard is completely enclosed by privacy fence besides a gate at the front, I have to drive back there to look.
Here are some shots of mine. One particular problem area is where it joins to the neighbors as you see by the edge of the railroad ties in their retaining wall in that shot. you can see somebody put some kind of now rotting board to try to hold things in there.
Basically I would think I need a retaining wall back there. I put in for a local quote on the internet and only one guy really got back to me via text. I told him over text maybe 30 feet wall needed. He said 1800. The guy came out to look in person and was all over the place. Basically he said he wouldn't bother with a wall, that due to the roots and fence it wasn't going anywhere. I told him I was concerned with further erosion of my backyard, besides the critters getting in. BTW this whole area is very wet and drains a lot. First he said get some aluminum flashing and put it down in those holes under the fence. Then he changed up and said get some sakrete, put it in there...or something. Really didn't make sense to me, and do what with the sakrete? Then he said get some paving stones and turn them on edge, it wouldn't be pretty but it would stop the erosion. I was confused again, he said he'd quote me 350 to do the paving stone thing and would get in touch next week. 350 was a lot better than 1800 so I said sounds good. As I said he didn't seem interested in doing an actual wall at all once he saw it. Another possible issue is I believe my property ends at the fence line, and behind me/the ditch is somebody else's property. However I assume they wouldn't have any issue with me putting a retaining wall next to a ditch...maybe extending a foot into their huge property behind me that's just a field, and all the neighbors already have one. I would check with them first.
Now I'm confused, I really think long term I need something, some type of barrier. I'm also a total noob and not handy. My thinking is, there's really just a couple stretches that look bad. Deepest spot at the corner is like 16 inches I think. I'm trying to do this as easy as possible. My though was, throw 1-2 rail ties (or maybe landscape timber) in each of the 2-3 problem spots, basically. Been watching a lot of youtubes about retaining walls. The roots there will be a pain to go through, as you see in the pics. Weird thing is just a couple weeks ago people came through and cut the brush behind my fence down, hence those chopped roots in the pics.
So anybody have thoughts? For such relatively short walls do I need to worry about drainage? Is this the way to go? I need to put gravel under the ties, right? And behind them, for drainage? I really assume a drainage tube isn't necessary in such small walls...
Just to clarify my though is to put 1 or 2 railroad ties (or anything if anybody has better idea) in each of the 2-3 areas with gaps under the fence. The worst/deepest area being at the corner in the 2nd pic from top. Spike them down. Probably dig some type of base channel, maybe put gravel in it as I've seen done on youtube, to put them in. Just worried about drainage etc.
Anything you advise, please walk me through step by step like I'm 5. I really wont understand anything advanced.