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It also specifies checklist items to verify drainage components, NPDES requirements, environmental sensitivity identification, and designer/engineering responsibilities.",{"@graph":14,"@context":72},[15,34,55],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/document/","Document",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/document/research-report/","Research & 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preparing a drainage plan sheet?","Question",{"text":62,"@type":63},"The checklist requires verifying drainage elements against estimate/plan/profile materials, confirming staging storm sewer layouts, ensuring consistent inlet/outlet elevations and locations, showing high/low point stations, and directing flow for ditches, culverts, and storm sewer.","Answer",{"name":65,"@type":60,"acceptedAnswer":66},"How should safety aprons and grates be handled?",{"text":67,"@type":63},"Clear zone must be checked to determine the need for safety aprons and grates, using flared end aprons when pipe ends are outside the clear zone and safety aprons and/or grates when pipe is within the clear zone.",{"name":69,"@type":60,"acceptedAnswer":70},"Which permit and compliance processes are referenced?",{"text":71,"@type":63},"The manual includes coordination steps for initiating the NPDES process and notes that construction will submit the Notice of Intent to MPCA, alongside obtaining necessary permits such as DNR, CORPS, MCES, and MPCA after coordination.","https://schema.org",{"og:url":32,"og:type":74,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":76,"canonical":32},"index,follow",{"doc_id":78,"site_id":7},662890,1793223083,{"code":4,"msg":81,"data":82},"success",[83,87,91,95,100,105,110,114,119,122,126],{"id":22,"doc_module":4,"doc_module_name":25,"category_name":84,"show_sort_weight":85,"slug":86},"Story & 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Ign Manual:Chapter 4(Clear Zone),8-1 to 8-4,8-6  \nREVISION DATE 122816  \n# Drainage Manual\n\nMnDOT Policy Manual:  Chapter 6-Policy for Procedure for Cooperat ive Construct ion Projects with LocalUnits of Government  \nTechn ical Memorandum:  No.12-01-B-01 Use of Plast1c PIpe for Storm Sewer and Culverts on Trunk HIghways  \nNo.14-04-B-02 Requirements for the Use of Metal Box Culverts  \nNo.15-03-TS-01 Design Guidelines for Locat ing Wet Ponds with Permanent WaterDepths Along Freeways and H1gh Speed HIghways  \nStandard Plans:5-297.430 Subsurface Drains5-297.431 Subsurface Drains5-297.432 Subsurface Drains5-297.433 Subsurface Drains -Outlet Pipes For Edge and Subcut Drains  \nh++p://ihub.metro/des ign/coordinat ion.h+ml Design/WRE Respons ibili+1es for Plan  \n# Miscellaneous:\n\nPreparat lon Activitles  \nGeneral Informat Ion:  \nProposed pond names are assigned by WRE.  \nCons Ider catch bas ins near corners of bridges at curb ends to prevent eros Ion of abutment embankments.  \nThe outlets shall be drained to the toe of the slope.  \nShow creek realignments.  \nThe necessary perm1ts(DNR,CORPS,  MCES,MPCA,etc.)wilI be applled for by the Water Resources Un1+after coordinat ing with Des ign.  Water Resources will also coordinate the des ign with the applIcableWatershed Distriots.  Des ign wIII ini+1ate the NPDES process.Water Resources wll complete and subml+it to Central Office Construct ion.Construct ion will submit the Not ice of Intent to the MPCA.  \nCons Ider placing trunk storm sewers outsIde of the roadbed,+o minimize roadbed disrup+lon whenp ipes deter iorate and need rep lacement.  \nAII permanent drainage structures,ponds and bas ins should be within R/W I imi+s or permanentdrainage easements and should be access ible to Maintenance.  \nTemporary drainage should be incorporated Into the staged construct ion plan.  \n26-JAN-2017 08:53  \nWater bodles should be delineated on drainage plan sheets(lakes,wetlands,etc.).If areas areenv Ironmentally sensi+Ive,note as such and include wetland +ype.  Informat Ion can be obtained fromMetro DIstrict's Wetlands Project Speclalist.  \nInplace drainage patterns should be ma intained where possible.  \nEros lon control and superelevat Ions may be shown on the drainage plan sheet rather than on a separatesheet 1f the plan sheet will not appear too cluttered.If so,the sheet should be +i+led as such;andrefer to the assoclated narrat ives and checkI1sts when preparing this sheet.  \nCons Ider us ing Input gutters In med ian areas to min1mlze sheet flow and Icing and output gutters inmed ians to minimize the number of structures.Consult with the Water Resources Eng ineering Unit.  \nOn smaller projects that do not include roadway profiles,di+ch grades may be shown ondrainage plan sheets.  \nCheck clear zone to determine need for safety aprons and grates.Use flared end aprons when pipe endis outs ide of the clear zone.  Use safety apron and/or grate when pipe is within the clear zone.Prov ide 1:10 slopes for med ian pipes parallel to roadway and include the deta1l in the plan.AII pipesIzes In medlan requIre safety aprons and grates.  \nGeneral Informat lon Cont.:  \nWhen placing a catch basin along the insIde ring of a roundabou+,try +o place I+on the Southor Southwest side where It w1II be more I Ikely +o catch any meltwater in the winter months andless Iikely to rema in covered in snow or ice.  \nTo prevent birdbaths and ensure proper drainage of the gu+ter along the outside edge ofa roundabout,add a note +o the construc+1on plan to slope the gut+er along the end of thespl1+ter islands at the same cross slope as the adj acent roundabout pavement.  \nCoordinate with the Water Resources Eng ineering Unit.  \nWhen prov iding Mater ials recommended edge and/or subcut drains,revlew 2502 Speclal Provislonsto determine correct pay items.  Edge drains are usually paid for as perforated PE pipe.Subcutdrains","cbCaidwLKNJUjblN","https://ap.wps.com/l/cbCaidwLKNJUjblN","pdf",389636,"English","# Drainage Manual\n## Drainage\n## Miscellaneous: Preparation Activities\n## Checklist\n## Revision Information","[{\"question\":\"What must be checked when preparing a drainage plan sheet?\",\"answer\":\"The checklist requires verifying drainage elements against estimate/plan/profile materials, confirming staging storm sewer layouts, ensuring consistent inlet/outlet elevations and locations, showing high/low point stations, and directing flow for ditches, culverts, and storm sewer.\"},{\"question\":\"How should safety aprons and grates be handled?\",\"answer\":\"Clear zone must be checked to determine the need for safety aprons and grates, using flared end aprons when pipe ends are outside the clear zone and safety aprons and/or grates when pipe is within the clear zone.\"},{\"question\":\"Which permit and compliance processes are referenced?\",\"answer\":\"The manual includes coordination steps for initiating the NPDES process and notes that construction will submit the Notice of Intent to MPCA, alongside obtaining necessary permits such as DNR, CORPS, MCES, and MPCA after coordination.\"}]","Drainage Manual - Chapter 12 - Drainage - Planning and Construction Guidance | PDF"]