HEC-HMS and Reaches as Pipes
HEC-HMS and Reaches as Pipes
(OP)
hello,
I've only been using HMS for a little over a year now, so I may not have come across this in the program yet. I have a drainage area flowing through a double 24" RCP. Can I analyze the RCP as a reach in HMS? Once the water flows this double pipe, it combines with water which has flowed out of a detention basin, and continues flowing down the highway ditch and into a large RCB further downstream.
Because I have a detention basin, I'm using the the NRCS or SCS method of computing the volume and peak flow. How can I use this method for the double pipe?
Thank you,
BillsSis
Oklahoma
I've only been using HMS for a little over a year now, so I may not have come across this in the program yet. I have a drainage area flowing through a double 24" RCP. Can I analyze the RCP as a reach in HMS? Once the water flows this double pipe, it combines with water which has flowed out of a detention basin, and continues flowing down the highway ditch and into a large RCB further downstream.
Because I have a detention basin, I'm using the the NRCS or SCS method of computing the volume and peak flow. How can I use this method for the double pipe?
Thank you,
BillsSis
Oklahoma





RE: HEC-HMS and Reaches as Pipes
I'd rather use a culvert model (e.g. HydroCulv, HY-8) and input the peak flow (or else depending on what you're looking for) in it.
RE: HEC-HMS and Reaches as Pipes
RE: HEC-HMS and Reaches as Pipes
Thank you for your thoughts. Sometimes it helps to just blurt out a question and see what happens! In this case, I asked and did additional research afterwards on my own before coming up with this solution.
BillSis