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<div>Hi Ron</div><div>Welcome to QGIS! </div><div><br></div><div>There is a huge wealth of knowledge out there but for Hydrological Applications from the amazing <a href="https://www.youtube.com/@HansvanderKwast">Hans van der Kwast</a> for future reference. </div>
<br clear="all"></div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div>Kind regards</div><div>Em</div><div><br></div><div style="margin-bottom:20px;font-family:verdana,sans-serif;color:#444444">Emma Hain — Product Manager/Senior GIS Analyst<br>
<a href="mailto:emma@north-road.com" style="color:#4e8daf!important;text-decoration:none!important" target="_blank">emma@north-road.com</a> <br></div>
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<td><font color="#444444"><font face="verdana, sans-serif"><b>North Road</b><br>Cartography • Development • Spatial Analysis</font><br><hr style="height:1px;background-color:#dbd28f;color:#dbd28f;border:none">
<span><font face="verdana, sans-serif"><a href="http://north-road.com" style="color:#4e8daf!important;text-decoration:none!important" target="_blank"><b>north-road.com</b></a><span></span><br><a href="https://twitter.com/northroadgeo" target="_blank"><img src="https://ci3.googleusercontent.com/mail-sig/AIorK4xbsQ72BNIM2cWMZcuEKVer1Bwaq_gqYkdbtrjK2ifrqv-4o7aWjcvilgYXtNGpXLNgD00xgmQ"></a></font></span></font><a href="https://www.linkedin.com/company/north-road-studios" target="_blank"><img src="https://ci3.googleusercontent.com/mail-sig/AIorK4zEBWGJKio8gqmFT0h_51t4ZnmoGgbmV7SeL-4FKvwWApFWDWyK7p-c0-cSskUe7pjQzjEZj9Q"></a><a href="https://www.facebook.com/North-Road-997236690392419/home" target="_blank"><img src="https://ci3.googleusercontent.com/mail-sig/AIorK4wlMciFPm8hqQZB_Qi57PUCv1dJqUC1A2i9qEMzWRFLcJ7Jil30YnULdJLxT6-qMfI6J4kcac4"></a><font color="#444444"><span><font face="verdana, sans-serif"><br></font></span></font><a href="https://2025.foss4g.org/" target="_blank">FOSS4G 2025</a><br>17-23 November, Auckland, New Zealand<br><br></td></tr></tbody></table></div></div></div><br></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Thu, 18 Sept 2025 at 08:22, Sébastien LAGARDE via QGIS-User <<a href="mailto:qgis-user@lists.osgeo.org">qgis-user@lists.osgeo.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class="msg-6449864823451274670">
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<p class="MsoNormal"><span style="font-size:11pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt">Hello.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11pt">Have a look a this plugin
<a href="https://plugins.qgis.org/plugins/CivilEng/" target="_blank">https://plugins.qgis.org/plugins/CivilEng/</a><u></u><u></u></span></p>
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<p style="margin:0cm"><b><span style="font-size:11.5pt;font-family:"Arial",sans-serif;color:rgb(22,28,52)">Sébastien LAGARDE</span></b><span style="font-size:10pt;font-family:"Arial",sans-serif;color:black"><u></u><u></u></span></p>
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<span style="font-size:10pt;font-family:"Arial",sans-serif;color:black"><u></u> <u></u></span></p>
<p style="margin:0cm"><span style="font-size:10pt;font-family:"Arial",sans-serif;color:rgb(22,28,52)">Portable : (+687) 76 82 24</span><span style="font-size:10pt;font-family:"Arial",sans-serif;color:black"><u></u><u></u></span></p>
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<p id="m_-6449864823451274670banner-replace"><span style="font-size:6pt;font-family:"Arial",sans-serif;color:rgb(135,138,135)">Agissons au quotidien pour préserver notre environnement. N’imprimez ce courrier et les documents joints que si nécessaire<u></u><u></u></span></p>
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<p class="MsoNormal"><b><span style="font-size:11pt;font-family:"Calibri",sans-serif">De :</span></b><span style="font-size:11pt;font-family:"Calibri",sans-serif"> QGIS-User <<a href="mailto:qgis-user-bounces@lists.osgeo.org" target="_blank">qgis-user-bounces@lists.osgeo.org</a>>
<b>De la part de</b> GPS Admin via QGIS-User<br>
<b>Envoyé :</b> jeudi 18 septembre 2025 09:05<br>
<b>À :</b> <a href="mailto:qgis-user@lists.osgeo.org" target="_blank">qgis-user@lists.osgeo.org</a><br>
<b>Objet :</b> [Qgis-user] How do I add a dam to a project then calculate its volume<u></u><u></u></span></p>
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<p class="MsoNormal">Greetings!<br>
<br>
This is my first question for this list and I am new to qgis, so be gentle!<br>
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We are building a 20 acre (8 hectare) lake and need to design an earthen dam and calculate the amount of fill dirt needed to build the dam.<br>
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We are starting with lidar data of the entire watershed and have created contours, then mapped the shoreline of the lake. I would like to add a dam to the model and then calculate the volume of the fill needed to construct the dam.<br>
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1) What is the best general workflow for this project?<br>
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2) How can I add the dam as 3D feature? The dam is not straight, it is arched. <br>
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3) What is the best way to calculate the fill required?<br>
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Thanks!<br>
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- Ron<br>
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