https://forums.autodesk.com/t5/civil-3d-customization-forum/storm-and-sanitary-analysis-not-computing-spread/m-p/7755194#M11719 <P><SPAN>The analysis output is telling me that my spread at an on-grade inlet is 0.00. When I use the calculator (I've used 3 different spread calculators: Neenah, Hydraulic Toolbox by FHWA, and the one contained within SSA), the spread is actually &gt;0. The spread at sag inlets seems to be working, but the spread at on-grade inlets is not. I am using a user-defined gutter cross section, but I can't figure out if or how that cross-section would be preventing the gutter spread from calculating. What am I missing? I feel like there must be some glitch that I'm not catching. There are no warnings in the ASCII Output report. Thank you.</SPAN></P> Tue, 06 Feb 2018 13:48:13 GMT Anonymous 2018-02-06T13:48:13Z https://forums.autodesk.com/t5/civil-3d-customization-forum/storm-and-sanitary-analysis-not-computing-spread/m-p/7755194#M11719 <P><SPAN>The analysis output is telling me that my spread at an on-grade inlet is 0.00. When I use the calculator (I've used 3 different spread calculators: Neenah, Hydraulic Toolbox by FHWA, and the one contained within SSA), the spread is actually &gt;0. The spread at sag inlets seems to be working, but the spread at on-grade inlets is not. I am using a user-defined gutter cross section, but I can't figure out if or how that cross-section would be preventing the gutter spread from calculating. What am I missing? I feel like there must be some glitch that I'm not catching. There are no warnings in the ASCII Output report. Thank you.</SPAN></P> Tue, 06 Feb 2018 13:48:13 GMT https://forums.autodesk.com/t5/civil-3d-customization-forum/storm-and-sanitary-analysis-not-computing-spread/m-p/7755194#M11719 Anonymous 2018-02-06T13:48:13Z