AnsweredAssumed Answered

Streams not exiting DEM

Question asked by xela3185@gmail.com on Feb 6, 2019
Latest reply on Feb 12, 2019 by xela3185@gmail.com

Hello,

 

I'm quite new to hydrological analyses and Arc Hydro and trying to get my head around dealing with streams (artificial ditches rather) not exiting my DEM. I would like to "burn" these ditches into my DEM using "DEM reconditioning" but what I'm wondering is: will I need to apply some kind of sink structure as my ditches are not exiting the DEM? I believe the issue (i.e. the reason the ditches are not exiting the DEM) is that I am working in a semi-urban area and the ditches may actually be ending up in storm water systems. Could these somehow be considered sinks? 

 

I apologize if the questions is a stupid one...I'm just really confused and any help would be really appreciated.

 

Thanks,

 

Alex.

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