https://epgtest.modot.org/index.php?action=history&feed=atom&title=620.15_Construction_Inspection_for_Sec_620 2026-04-30T14:23:52Z Revision history for this page on the wiki MediaWiki 1.42.3 https://epgtest.modot.org/index.php?title=620.15_Construction_Inspection_for_Sec_620&diff=59618&oldid=prev 2025-11-19T23:09:53Z

<p><span dir="auto"><span class="autocomment">620.15.2.2 Permanent Pavement Marking (Sec 620.2.2)</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 18:09, 19 November 2025</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l84">Line 84:</td> <td colspan="2" class="diff-lineno">Line 84:</td></tr> <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>The location of the stop bars and traffic signal loop detectors at intersections are critical. Improper location of these two features in relation to each other can cause operational problems with the traffic signals. Ideally, the two features are located so that when a vehicle stops at the stop bar, the stopped vehicle is fully in the detection zone of the loop. Care also needs to be taken when side street left turns are present. Locating the stop bars too far forward in these situations can either make it difficult for the side street traffic to execute their left turn or the turning traffic could clip the loop, thereby putting a false detection into the signal.</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>The location of the stop bars and traffic signal loop detectors at intersections are critical. Improper location of these two features in relation to each other can cause operational problems with the traffic signals. Ideally, the two features are located so that when a vehicle stops at the stop bar, the stopped vehicle is fully in the detection zone of the loop. Care also needs to be taken when side street left turns are present. Locating the stop bars too far forward in these situations can either make it difficult for the side street traffic to execute their left turn or the turning traffic could clip the loop, thereby putting a false detection into the signal.</div></td></tr> <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;"><br></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;"><br></td></tr> <tr><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: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>When intersection markings using durable materials<del style="font-weight: bold; text-decoration: none;">, such as the 3M tape, </del>are to be installed at intersections with traffic signals, the installation sequence of the detector loops and permanent pavement marking is important. Coordination of the layout of stop bars and loops with traffic personnel is encouraged for proper placement of both. The detection loops should be cut and sealed first, followed by placement of the stop bars. This sequence is recommended so that the durable pavement marking tape is not cut or damaged by the saw cutting process for the detector loops. The grooving required for installing the tape should not damage the loop detectors, since the loop cuts are significantly deeper than the grooving. Following these steps will provide the good, clean look that we want on projects and will allow the permanent pavement marking<del style="font-weight: bold; text-decoration: none;">, such as 3M tape, </del>to provide the durability that we are expecting.</div></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>When intersection markings using durable materials are to be installed at intersections with traffic signals, the installation sequence of the detector loops and permanent pavement marking is important. Coordination of the layout of stop bars and loops with traffic personnel is encouraged for proper placement of both. The detection loops should be cut and sealed first, followed by placement of the stop bars. This sequence is recommended so that the durable pavement marking tape is not cut or damaged by the saw cutting process for the detector loops. The grooving required for installing the tape should not damage the loop detectors, since the loop cuts are significantly deeper than the grooving. Following these steps will provide the good, clean look that we want on projects and will allow the permanent pavement marking to provide the durability that we are expecting.</div></td></tr> <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;"><br></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;"><br></td></tr> <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>===620.15.2.3 Inspection ([http://www.modot.org/business/standards_and_specs/SpecbookEPG.pdf#page=9 Sec 620.2.3])===  </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>===620.15.2.3 Inspection ([http://www.modot.org/business/standards_and_specs/SpecbookEPG.pdf#page=9 Sec 620.2.3])===  </div></td></tr> </table>

WilkeJ https://epgtest.modot.org/index.php?title=620.15_Construction_Inspection_for_Sec_620&diff=57698&oldid=prev 2025-10-29T18:29:28Z

<p><span dir="auto"><span class="autocomment">620.15.2 Construction Requirements (Sec 620.2)</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 13:29, 29 October 2025</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l48">Line 48:</td> <td colspan="2" class="diff-lineno">Line 48:</td></tr> <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>(Sec 620.2.1.7)</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>(Sec 620.2.1.7)</div></td></tr> <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;"><br></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;"><br></td></tr> <tr><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: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Application rates are checked by calculating the yield. This is done by determining the amount of material used versus the amount of line placed. Yields for different materials can be obtained from the suppliers. Yield is determined by dividing the quantity of material used by the amount of line placed. The amounts of material used can be determined from the striper. The amount of line placed can be determined either from the foot counter on the striper or estimates of the amount placed. Foot counters on stripers are only active when the guns are actually applying material. If foot counters are used, either the foot counter should be reset to zero at the start or the initial reading needs to be recorded. The results are in gallons per mile (refer to [[620.<del style="font-weight: bold; text-decoration: none;">1 General (MUTCD Chapter 3A)</del>#<del style="font-weight: bold; text-decoration: none;">620</del>.<del style="font-weight: bold; text-decoration: none;">1</del>.<del style="font-weight: bold; text-decoration: none;">11 Traffic Marking Paint Application Rates</del>|<del style="font-weight: bold; text-decoration: none;">Yield </del>Table <del style="font-weight: bold; text-decoration: none;">for Liquid Pavement Marking Materials</del>]].</div></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>Application rates are checked by calculating the yield. This is done by determining the amount of material used versus the amount of line placed. Yields for different materials can be obtained from the suppliers. Yield is determined by dividing the quantity of material used by the amount of line placed. The amounts of material used can be determined from the striper. The amount of line placed can be determined either from the foot counter on the striper or estimates of the amount placed. Foot counters on stripers are only active when the guns are actually applying material. If foot counters are used, either the foot counter should be reset to zero at the start or the initial reading needs to be recorded. The results are in gallons per mile (refer to [[620.<ins style="font-weight: bold; text-decoration: none;">11 MoDOT Pavement Marking Materials </ins>#<ins style="font-weight: bold; text-decoration: none;">tab620</ins>.<ins style="font-weight: bold; text-decoration: none;">11</ins>.<ins style="font-weight: bold; text-decoration: none;">2</ins>|Table <ins style="font-weight: bold; text-decoration: none;">620.11.2</ins>]]<ins style="font-weight: bold; text-decoration: none;">)</ins>.</div></td></tr> <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;"><br></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;"><br></td></tr> <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>Another way to check the application rate is on the fly with a wet film thickness gauge. The gauge, which is typically a rectangular piece of metal or plastic with serrated edges of different depths, is placed on a test plate immediately after the material has been placed. Test plates, which are thin metal squares and can be the same test plates used for concrete thickness testing, are placed in front of the striper during production. When doing a test the beads should be turned off when the striper passes over the plate to get an accurate reading of the wet thickness. The number of test plates used is dependent on the amount of line being placed and the discretion of the inspector.</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>Another way to check the application rate is on the fly with a wet film thickness gauge. The gauge, which is typically a rectangular piece of metal or plastic with serrated edges of different depths, is placed on a test plate immediately after the material has been placed. Test plates, which are thin metal squares and can be the same test plates used for concrete thickness testing, are placed in front of the striper during production. When doing a test the beads should be turned off when the striper passes over the plate to get an accurate reading of the wet thickness. The number of test plates used is dependent on the amount of line being placed and the discretion of the inspector.</div></td></tr> </table>

HogsettC https://epgtest.modot.org/index.php?title=620.15_Construction_Inspection_for_Sec_620&diff=57697&oldid=prev 2025-10-29T18:25:21Z

<p><span dir="auto"><span class="autocomment">620.15.1 Description</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 13:25, 29 October 2025</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l16">Line 16:</td> <td colspan="2" class="diff-lineno">Line 16:</td></tr> <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>General guidelines that apply to pavement marking contracts are:</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>General guidelines that apply to pavement marking contracts are:</div></td></tr> <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>*Surface preparation is required on all new surfaces.</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>*Surface preparation is required on all new surfaces.</div></td></tr> <tr><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: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*See [[620.<del style="font-weight: bold; text-decoration: none;">1 General (MUTCD Chapter 3A)</del>#620.1.<del style="font-weight: bold; text-decoration: none;">6 Permanent Pavement Markings|Permanent Pavement Markings</del>]] for the current material selection guidelines.</div></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>*See [[620.<ins style="font-weight: bold; text-decoration: none;">11 MoDOT Pavement Marking Materials </ins>#620<ins style="font-weight: bold; text-decoration: none;">.11</ins>.1<ins style="font-weight: bold; text-decoration: none;">| EPG 620.11</ins>.<ins style="font-weight: bold; text-decoration: none;">1</ins>]] for the current material selection guidelines.</div></td></tr> <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>*Retroreflectivity readings of painted curbs are not required.</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>*Retroreflectivity readings of painted curbs are not required.</div></td></tr> <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>*The alignment standards for the installation of milled rumbles are in [[626.3 Construction Inspection Guidelines for Sec 626|Construction Inspection Guidelines for Sec 626]].</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>*The alignment standards for the installation of milled rumbles are in [[626.3 Construction Inspection Guidelines for Sec 626|Construction Inspection Guidelines for Sec 626]].</div></td></tr> <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>*Milled rumbles shall be clean and dry before the installation of permanent pavement marking. No payment will be made for this cleaning.</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>*Milled rumbles shall be clean and dry before the installation of permanent pavement marking. No payment will be made for this cleaning.</div></td></tr> <tr><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: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*Edgeline rumble "stripes" will be installed according to the guidelines in [[:Category:626 Rumble Strips|<del style="font-weight: bold; text-decoration: none;">Rumble Strips</del>]].</div></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>*Edgeline rumble "stripes" will be installed according to the guidelines in [[:Category:626 Rumble Strips|<ins style="font-weight: bold; text-decoration: none;">EPG 626</ins>]].</div></td></tr> <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>*When temporary paint is used the temporary markings will meet the following:</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>*When temporary paint is used the temporary markings will meet the following:</div></td></tr> <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>:*Minimum Initial Retroreflectivity – 150 mcd/m&lt;sup&gt;2&lt;/sup&gt;/lux</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>:*Minimum Initial Retroreflectivity – 150 mcd/m&lt;sup&gt;2&lt;/sup&gt;/lux</div></td></tr> </table>

HogsettC https://epgtest.modot.org/index.php?title=620.15_Construction_Inspection_for_Sec_620&diff=57562&oldid=prev 2025-10-28T20:00:07Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 15:00, 28 October 2025</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l206">Line 206:</td> <td colspan="2" class="diff-lineno">Line 206:</td></tr> <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;"><br></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;"><br></td></tr> <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>It is recommended a Type III epoxy mixed with aggregate in accordance with [http://www.modot.org/business/standards_and_specs/SpecbookEPG.pdf#page=14 Sec 1039.50.1] be used to patch holes left by the removal of a SRPM.</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>It is recommended a Type III epoxy mixed with aggregate in accordance with [http://www.modot.org/business/standards_and_specs/SpecbookEPG.pdf#page=14 Sec 1039.50.1] be used to patch holes left by the removal of a SRPM.</div></td></tr> <tr><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: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2" class="diff-side-added"></td></tr> <tr><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: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">[[Category:620 Pavement Marking]]</del></div></td><td colspan="2" class="diff-side-added"></td></tr> </table>

TaracksA https://epgtest.modot.org/index.php?title=620.15_Construction_Inspection_for_Sec_620&diff=57561&oldid=prev 2025-10-28T19:59:46Z

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TaracksA