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psmart, Thank you for your quick response. I was able to use the culative storage method to model the existing pond.

Hi, I'm trying to determine the best way to model the volume of the existing pond (see attached file). The bottom elevation is 242' and the top is 246'. The tricky part for me is this existing pond has a sediment mound built up over time at elevation 244'. I have determine the total pond...

I don't want to have to adjust existing inverts elevations if I can find an alternative solution. Thank you.

Runoff Method: SCS TR-20 Reach Routing Method: Dyn-Stor-Ind Pond Routing Method: Dyn-Stor-Ind I attached the model. The slope of node 5R seems to the issue. 1R through 5R are existing storm pipes. In order to remove the error message, I lowered the invert of 5R to Inlet/Outlet...

I'm encountering the message, "[80] Warning: {node} Exceeded Pond x by x.x' @ x.x hrs (x.x cfs x.x af)" More speciffically to my model, "[80] Warning: Pond 5R Exceeded Pond 6R by 0.10' @ 12.06 hrs (2.16 cfs 0.008 af)" Ponds 5R and 6R are Catch Basins with insignificant storage. There are two...

I have a subcatchment described in the attached photo. The subcatchmet has a roof with five disconnected roof drains that spill onto stone (open graded ASTM #2 stone with no fines) areas. Each stone area has a catch basin. The catch basins are part of a longitudinal network which outfalls into...

psmart, Thank you for your imput. I got my model to import! I switch all of my subcatchments, land uses, and soil types in AutoCAD from Regions to Polylines. It seems Build 15 does not like Regions. I was using Regions in Build 14. I will proceed with using polyines to import areas from...

I'm having a hard time importing my subcatchment information from AutoCAD 2015 (Product Version J.210.0.0, SP2) to HydroCAD (10.00-15). The error message is, "Error 189: Watershed imort failed: Missing Import Column: Node Number While importing data". I tried the follwowing steps for Error...