Observing Commercial Retaining Wall Systems

just make you go hmm all right so now we're gonna go into two sites return arguably almost virtually impossible to build but yet you're gonna find retaining walls there how tall do you think that wall is 16 to 20 feet right so from what I've taught you so far how long how far back do you think the grid lengths need to be to make that wall right 20 feet so it's a one-to-one ratio for every foot of wall height you should have one foot of geogrid behind it you can kind of you can start to cheat on shorter walls by using a bigger block right but once you get over a certain height which is typically 11 feet you can't cheat anymore cheating doesn't work you've got to go back to the old engineering principles which means you've got to get the right amount of grid in I mean what would and when we look at this wall Frankie do you see anything that would prevent from getting the right amount of grid in like a garage that obviously was never moved the telephone pole was potentially moved because if I look at it I can see that it's a different color than the one next to it but thank courage I don't think was so to get this group this wall in place 18 foot back means that they sacrificed on the geogrid structural these guys I mean aesthetically these guys did a decent job on this retaining wall but structurally you've got a question if everything is in place to make it right and the grid on a wall this high is more important than the block the block actually just becomes a second secondary in the entire structure of the thing in fact when you do this right you can literally take the block off and all the soil will stay in place just from the geogrid as long as you've got it in installed properly so the block itself becomes almost like a facade at that point and what about this wall I'll tall is this wall Frankie five feet and is there a surcharge on this wall yep so you look at this law right here I mean this this is kind of a dead giveaway I mean we've got 18 inches of clearance on a 5 foot tall wall there's no way that this wall has geogrid in it and it's got a surcharge from this building unless the footings of this building go down deep enough that it's not presenting a surcharge and then they wouldn't have needed a retaining wall in the first place they could have just put a stone facade up so it looks to me just from what I can can gather that here's another potential problem area and for sure right here this is a for sure there's no question about it so the…