https://epgtest3.modot.org/index.php?action=history&feed=atom&title=Talk%3A646.1_ManholesTalk:646.1 Manholes - Revision history2026-04-29T14:35:22ZRevision history for this page on the wikiMediaWiki 1.42.3https://epgtest3.modot.org/index.php?title=Talk:646.1_Manholes&diff=18540&oldid=prevSmithk: article construction2008-09-15T15:30:28Z<p>article construction</p>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>I was asked, "How do you know when to use a Type 2 vs. a Type 3 Manhole Frame & Cover". The standard drawing shows the weight difference for these but I can not find any other information on these.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>I was asked, "How do you know when to use a Type 2 vs. a Type 3 Manhole Frame & Cover". The standard drawing shows the weight difference for these but I can not find any other information on these.</div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[[USER:smithk|Keith L. Smith:]]Good question. The Type 2 Frame & Lid are rated for H-20 loading and are for pouring into a concrete slab. Std. Plan 604.30 shows 1A, 1B and Type 2 used in the Cast-in-place manholes. Type 2 is used for paved areas, 1A and 1B are used for unpaved areas. In Std. Plan 731.00, Type 2 is also used on unpaved areas where the Alternate Flat Slab Manhole is used (instead of a typical manhole, which is deeper). See also Std. Plan 604.30.</ins></div></td></tr>
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<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">Type Type 3 Frame & Lid are not traffic rated and are for pouring into a concrete slab. Basically, use Type 3 for sidewalks. See Std. Plan 731.10, Sheet 6 of 8.</ins></div></td></tr>
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<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">Type Type 4 Frame & Lid are rated for H-20 loading and can be used as a slab type of casting (poured into concrete slabe), set into corrugated pipe vertically or flip the frame upside down and it will set on top of a structure like the Type 1-C. Although it can be used like a Type 1-C, although we are unsure whether MoDOT uses it that way. Type 4 can be used for sidewalks and precast drop inlets (ex. Type T) where traffic is expected. See Std. Plan 731.00.</ins></div></td></tr>
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<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">After additional discussion (involving MoDOT possibly revising the choices of manhole frames and covers), you may expect some cover selection guidance in the EPG along these lines.</ins></div></td></tr>
</table>Smithkhttps://epgtest3.modot.org/index.php?title=Talk:646.1_Manholes&diff=18528&oldid=prevEPG-Admin: Type 2 vs. Type 3 Manhole Frame & Cover2008-09-09T13:51:18Z<p>Type 2 vs. Type 3 Manhole Frame & Cover</p>
<p><b>New page</b></p><div>I was asked, "How do you know when to use a Type 2 vs. a Type 3 Manhole Frame & Cover". The standard drawing shows the weight difference for these but I can not find any other information on these.</div>EPG-Admin