I'm not changing the size or shape; but I might have to adjust the elevation. I wish I could figure out how to attach a picture. It is like having a frame and grate embedded into the top lid of a septic tank. Thinking out loud here, maybe a way to adjust the grate elevation is to set rebar...
I am working with a municipality to improve an intersection and a drainage issue at the intersection. At the intersection is an inlet with a frame and grate. However the structure is a large concrete box, almost like a septic tank, instead of a typical manhole structure. The frame and grate...
Thanks for the heads up on the water balance. I'm familiar with that. This stream does have decent flow, though, from a spring. I'm afraid the trout will die, regardless.
While I have designed many ponds for storm water control such as detention/retention ponds, I have been asked for the first time to design a pond for recreational purposes. It is basically a small farm pond in extreme northeast GA (silty clay soils) in which the owner wishes to stock with...
The trail will be left natural (no grass or additional surfacing). I don't think GA EPD will go for the perimeter dikes, although the trail builder will probably do that anyway. Thanks for the post.
I wasn't looking to use the spreadsheet or try to use this as sediment storage. I just mentioned it from a theoretical point. I am also looking at soil loss and transport to technically show that the sediment, which would be topsoil, would become part of the native ground at a certain point.
Thanks for the assistance. You did give me an idea to maybe try to tie this in somehow with the water quality spreadsheet and TSS loading. The woods could be recognized as as undisturbed filter.
I totally understand what you are saying about the EPD. Yes, normally I would just follow the checklist and be done with it. This erosion control design is for miles of 3' wide trails in which the disturbance for installing silt fence may be more than the trail itself. On this particular...
Thanks for replying. I am in GA and this project is atypical for the EPD. They are allowing me some freedom in this design; not just following a checklist. If I can justify that silt fence is not needed when minor disturbance is a particular distance from a stream, I think they will go along...
I am working on an erosion control plan for construction within a national forest. It would seem that at some point silt would dissipate before reaching a creek or stream if it is a certain distance from the construction. Could there be a rule of thumb based on the distance, slope and...
I am in Georgia and yes, I am a banjo player (paddle faster, I hear a banjo). Thanks for the valuable posts. I have learned that this issue might have happened for several reasons. I am planning to recommend further geotechnical testing to determine the cause. However the owner believes it...
LukasJ, if you are talking about the project I posted, unfortunately I don't have much more information other than what i have provided in this thread. Let me know if there is something else I could do.
Thanks for the pics. That looks to be very similar to what I am experiencing. As I mentioned before, the fill slope looks to be steeper than 2:1. That might be part of the problem.
