topic How do i create mini catchments/basins that don't need to rely on snap pour point? in ArcGIS Spatial Analyst Questions https://community.esri.com/t5/arcgis-spatial-analyst-questions/how-do-i-create-mini-catchments-basins-that-don-t/m-p/273287#M3884 <HTML><HEAD></HEAD><BODY><P>I want to see the area that would drain into a sewer lift station. These are small stations scattered throughout the city. I'm able to use my DEM and create a flow direction and accumulation. But i want to use my point feature of all the lift stations like a "sink hole". I was hoping i could extract cells from the DEM that overlapped my lift station feature and change the DEM valve from No Data to 0 elevation. </P><P>I'm having difficulty because everything i've researched says to treat these lift stations as pour points, but that i have to snap my pour points to streams...? I don't want to do this because it moves the lift station points way too far, defeating the purpose.</P><P></P><P>Is&nbsp; there a way to create funnels or false watersheds?</P></BODY></HTML> Fri, 29 Apr 2016 16:16:52 GMT Shannonwilder 2016-04-29T16:16:52Z How do i create mini catchments/basins that don't need to rely on snap pour point? https://community.esri.com/t5/arcgis-spatial-analyst-questions/how-do-i-create-mini-catchments-basins-that-don-t/m-p/273287#M3884 <HTML><HEAD></HEAD><BODY><P>I want to see the area that would drain into a sewer lift station. These are small stations scattered throughout the city. I'm able to use my DEM and create a flow direction and accumulation. But i want to use my point feature of all the lift stations like a "sink hole". I was hoping i could extract cells from the DEM that overlapped my lift station feature and change the DEM valve from No Data to 0 elevation. </P><P>I'm having difficulty because everything i've researched says to treat these lift stations as pour points, but that i have to snap my pour points to streams...? I don't want to do this because it moves the lift station points way too far, defeating the purpose.</P><P></P><P>Is&nbsp; there a way to create funnels or false watersheds?</P></BODY></HTML> Fri, 29 Apr 2016 16:16:52 GMT https://community.esri.com/t5/arcgis-spatial-analyst-questions/how-do-i-create-mini-catchments-basins-that-don-t/m-p/273287#M3884 Shannonwilder 2016-04-29T16:16:52Z