IR SS2 drainage - No Flow found upstreamhttps://communities.bentley.com/products/road___site_design/f/geopak-inroads-mx-openroads-forum/183417/ir-ss2-drainage---no-flow-found-upstreamI am new to the drainage tools in SS2. I have created a small drainage network. When I run Network &gt; Design, the design log states &quot;No flow found upstream&quot;. I have areas defined and attached to inlets. The inlets show 0.00 for all the values on the Editen-USTelligent Community 12RE: IR SS2 drainage - No Flow found upstreamhttps://communities.bentley.com/thread/536304?ContentTypeID=1Fri, 02 Aug 2019 18:08:05 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:9dfc6933-0a69-4e17-a7e7-17fd3902c98fDalek<p>thanks Holly, I have already viewed that learning material and reviewed it again looking for my answer. I cannot figure out why my pipes will not calculate the sizes.</p><div style="clear:both;"></div>RE: IR SS2 drainage - No Flow found upstreamhttps://communities.bentley.com/thread/536290?ContentTypeID=1Fri, 02 Aug 2019 14:18:17 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:717254e9-43f6-4252-af2b-55df2560b8c8Holly Herring<p>If you are new to the drainage tools, I recommend working through our Drainage training to get familiar with them: <a href="https://learn.bentley.com/app/Public/ViewLearningPathDetails?lpId=100137">https://learn.bentley.com/app/Public/ViewLearningPathDetails?lpId=100137</a>.</p><div style="clear:both;"></div>