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<?xml-stylesheet type="text/xsl" href="https://communities.bentley.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/"><channel><title>[ORD] How to set up hydraulic properties of inlets (also Neenah grate question)</title><link>https://communities.bentley.com/products/road___site_design/f/geopak-inroads-mx-openroads-forum/206927/ord-how-to-set-up-hydraulic-properties-of-inlets-also-neenah-grate-question</link><description>I can&amp;#39;t figure out where in the inlet library I would enter the Free Open Area and Weir Perimeter for each inlet type. In GEOPAK this was simple to enter and you could also enter a clogging factor. How do you do this in ORD? 
 I also tried following the</description><dc:language>en-US</dc:language><generator>Telligent Community 12</generator><item><title>RE: [ORD] How to set up hydraulic properties of inlets (also Neenah grate question)</title><link>https://communities.bentley.com/thread/623952?ContentTypeID=1</link><pubDate>Tue, 08 Dec 2020 14:43:04 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:acd7d013-d251-4fd5-86ff-42b110f693c8</guid><dc:creator>Beebe Ray</dc:creator><description>&lt;p&gt;I see you submitted a Service Request too.&amp;nbsp; I responded to that as well.&lt;/p&gt;
&lt;p&gt;&lt;a href="/products/hydraulics___hydrology/w/hydraulics_and_hydrology__wiki/20519/depth-and-spread-calculations-for-grate-inlet-in-sag"&gt;https://communities.bentley.com/products/hydraulics___hydrology/w/hydraulics_and_hydrology__wiki/20519/depth-and-spread-calculations-for-grate-inlet-in-sag&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;I see it as percent clogged as it acts as a reduction.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: [ORD] How to set up hydraulic properties of inlets (also Neenah grate question)</title><link>https://communities.bentley.com/thread/623735?ContentTypeID=1</link><pubDate>Mon, 07 Dec 2020 17:46:52 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:915566ce-b55f-41ad-9cd9-fabc70400c0c</guid><dc:creator>Josh M</dc:creator><description>&lt;p&gt;Dumb question...&amp;nbsp; Is the Clogging Factor (%) the percent clogged or the percent left open?&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: [ORD] How to set up hydraulic properties of inlets (also Neenah grate question)</title><link>https://communities.bentley.com/thread/623703?ContentTypeID=1</link><pubDate>Mon, 07 Dec 2020 15:41:12 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:a284181a-9be7-4013-b1f2-014bcce5d1e8</guid><dc:creator>Josh M</dc:creator><description>&lt;p&gt;Thank you Karl.&amp;nbsp; That is the best answer and information I have seen so far.&amp;nbsp; I&amp;#39;ll keep plugging away at setting up our standards.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: [ORD] How to set up hydraulic properties of inlets (also Neenah grate question)</title><link>https://communities.bentley.com/thread/623681?ContentTypeID=1</link><pubDate>Mon, 07 Dec 2020 14:23:23 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:9b2e1d5b-c696-4737-a1a7-e96b300b3a99</guid><dc:creator>Karl Dauber</dc:creator><description>&lt;p&gt;Hi Josh,&lt;br /&gt;I don&amp;#39;t generally change the grate width and length dimensions to obtain a target open area.&amp;nbsp; I can use the clogging factor to do that.&amp;nbsp; You can combine the desired open area ratio and clogging factor into one composite factor.&amp;nbsp; Note that this all applies only to inlets in sag locations.&amp;nbsp; Open area, perimeter length, and clogging are irrelevant for on-grade inlets.&lt;/p&gt;
&lt;p&gt;If you alter the grate dimensions, then the on-grade interception calculation will not be accurate since frontal flow and side flow are based on those dimensions.&amp;nbsp; FHWA does not recommend a clogging factor for on-grade inlets unless local conditions warrant it.&amp;nbsp; However, perhaps your client requires it.&amp;nbsp; If so, then maybe you&amp;#39;ll need to create separate inlet entries as you suggested.&amp;nbsp; To account for clogging of on-grade inlets, you will need to reduce the grate dimensions.&amp;nbsp; The clogging factor will not apply to your on-grade inlets since it only reduces open area which has no impact on the on-grade calculations.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: [ORD] How to set up hydraulic properties of inlets (also Neenah grate question)</title><link>https://communities.bentley.com/thread/623668?ContentTypeID=1</link><pubDate>Mon, 07 Dec 2020 13:22:48 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:0f09b445-ba3b-4605-abd9-8d2851dfcff1</guid><dc:creator>Josh M</dc:creator><description>&lt;p&gt;Do I understand correctly that for each Neenah grate I would need to create four catalog entries and prototypes (for all four cross-slopes evaluated in the Neenah literature), and then assign the one with the closest cross-slope to my project&amp;#39;s inlets?&amp;nbsp; We have around twelve different inlets that typically use in our organization, which makes this a huge task, and results in a large library / pick list to wade through when building the drainage model.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: [ORD] How to set up hydraulic properties of inlets (also Neenah grate question)</title><link>https://communities.bentley.com/thread/623451?ContentTypeID=1</link><pubDate>Fri, 04 Dec 2020 21:41:06 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:e6048325-cfd8-400e-aec5-0890da0095b2</guid><dc:creator>Beebe Ray</dc:creator><description>&lt;p&gt;&lt;a href="/products/hydraulics___hydrology/w/hydraulics_and_hydrology__wiki/23286/which-dimensions-are-used-when-inputting-grate-information-for-inlets-in-stormcad"&gt;https://communities.bentley.com/products/hydraulics___hydrology/w/hydraulics_and_hydrology__wiki/23286/which-dimensions-are-used-when-inputting-grate-information-for-inlets-in-stormcad&lt;/a&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: [ORD] How to set up hydraulic properties of inlets (also Neenah grate question)</title><link>https://communities.bentley.com/thread/623450?ContentTypeID=1</link><pubDate>Fri, 04 Dec 2020 21:39:50 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:add64804-5cfb-46b4-9f40-2e189a235d64</guid><dc:creator>Beebe Ray</dc:creator><description>&lt;p&gt;here are a few other links to assist&lt;/p&gt;
&lt;p&gt;&lt;a href="/products/hydraulics___hydrology/w/hydraulics_and_hydrology__wiki/18689/modeling-neenah-grate-inlets"&gt;https://communities.bentley.com/products/hydraulics___hydrology/w/hydraulics_and_hydrology__wiki/18689/modeling-neenah-grate-inlets&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href="/products/hydraulics___hydrology/f/haestad-hydraulics-and-hydrology-forum/186816/inlet-type-and-grating/548138#548138"&gt;https://communities.bentley.com/products/hydraulics___hydrology/f/haestad-hydraulics-and-hydrology-forum/186816/inlet-type-and-grating/548138#548138&lt;/a&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: [ORD] How to set up hydraulic properties of inlets (also Neenah grate question)</title><link>https://communities.bentley.com/thread/623439?ContentTypeID=1</link><pubDate>Fri, 04 Dec 2020 20:00:23 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:6530b80b-2079-483c-875c-9362c3bd0488</guid><dc:creator>Josh M</dc:creator><description>&lt;p&gt;Also, since I would like to use different clogging factors for a grate that will be used on grade and in a sag location, should I define two different prototypes for situations like this?&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: [ORD] How to set up hydraulic properties of inlets (also Neenah grate question)</title><link>https://communities.bentley.com/thread/623438?ContentTypeID=1</link><pubDate>Fri, 04 Dec 2020 19:53:31 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:479c344e-8d7c-4e6a-8bab-9bdc5713c056</guid><dc:creator>Josh M</dc:creator><description>&lt;p&gt;Thank you.&lt;/p&gt;
&lt;p&gt;What dimensions are used for the weir length? The structure width and length, or the grate dimensions?&amp;nbsp; On a combination inlet the weir length is the length of the grate plus 2x the width (only three sides of the grate take flow).&lt;/p&gt;
&lt;p&gt;Also, I followed the directions &lt;a href="/products/hydraulics___hydrology/w/hydraulics_and_hydrology__wiki/37886/how-is-the-clear-opening-area-of-a-grate-inlet-determined"&gt;here&lt;/a&gt;.&amp;nbsp; Do I understand that the grate dimensions entered in the bottom section should be modified so that the open area using a specified grate type&amp;#39;s &amp;quot;opening ratio&amp;quot; produces the actual open area specified by the manufacturer?&amp;nbsp; This will be very misleading for anyone looking at the definition in the future.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: [ORD] How to set up hydraulic properties of inlets (also Neenah grate question)</title><link>https://communities.bentley.com/thread/623435?ContentTypeID=1</link><pubDate>Fri, 04 Dec 2020 19:13:04 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:9aadc0f9-9d8b-4eeb-970e-e0c319f9267a</guid><dc:creator>Beebe Ray</dc:creator><description>&lt;p&gt;The area&amp;nbsp; and perimeter is computed using the length and width of the grate that you enter in the catalog.&amp;nbsp; The clogging is applied on the prototype.&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;img alt=" " src="/resized-image/__size/1080x540/__key/communityserver-discussions-components-files/5922/inlet-comparison.jpg" /&gt;&lt;/p&gt;
&lt;p&gt;The clogging is on the prototype under the Inlet Opening section.&lt;/p&gt;
&lt;p&gt;&lt;img alt=" " src="/resized-image/__size/1080x540/__key/communityserver-discussions-components-files/5922/prototype.jpg" /&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>