I ordered some class 3 channel liner. Supposed to be 9" to 12" in size. I was sent shot rock. I was there for the first load and questioned it. The following loads were worse. One pic I have the rock is 32" long. The engineer is kicking on it , so is the owner leaving me to deal with the quarry , its on my account and done paid for. The problem the owner and NRCS people don't want to compensate me for it. The rock sent was not screened , the operator told me it was picked by an excavator. I sure hope I don't have to eat 3k in shot rock/class III liner for Christmas.
I take it your working in some kind of waterway & this is an erosion control project ?
From what I understand you had to over dig to get the " shot rock" in . Now need a 2 or 3 more truck loads to finish up the project and that's the $ 1,500.00 .
I might take some time & explain to the engineer that " shot rock " is the best & most cost effective when dealing with moving water .
It's got a little bit of everything in it from small boulders to rip rap ,gravel & fines . It all locks together & the boulders help shield the fines from water currant and the fines help lock the boulders in place .
Army Corps of Engineers use shot rock any where there is high current & wave action . It works .
Probably best bet is ask the land owner or NRCS to help meet you in the middle somewhere on the extra cost & move on .
Sounds like if anything you did your best and now the job is really over specifications.