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Covers multiple kerb and channel types, including mountable and semi-mountable kerbs, depth/allowance designations, and channel tray configurations. Provides reference position guidance such as kerb line and height reference, plus governing construction notes on channel throat thickness, transitions over minimum distances, concrete and asphalt requirements, and dimensional units in millimetres. Includes associated and referenced departmental and Australian standards.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":30,"@type":76,"position":81},"https://docshare.wps.com/document/technology/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/barrier-kerb-and-tray-type-4-to-type-28-reference-positions-notes/664946/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/barrier-kerb-and-tray-type-4-to-type-28-reference-positions-notes/664946.png","ImageObject",300,407,{"name":92,"@type":93},"Sarah ","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-10-29",true,{"@type":102,"interactionType":103,"userInteractionCount":8},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is the minimum channel throat thickness requirement?","Question",{"text":112,"@type":113},"The channel throat thickness is 150 mm, and the portion of kerbs below the finished surface shown is a minimum.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"Over what minimum distance must transitions between kerb types be made?",{"text":117,"@type":113},"Transitions between kerb types must be carried out over a minimum distance of 1.5 m.",{"name":119,"@type":110,"acceptedAnswer":120},"How are concrete and asphalt allowance (AA) requirements defined?",{"text":121,"@type":113},"Concrete must follow the stated MRTS70 requirements, including manual or machine placement conditions. Asphalt allowance 'AA' is for the initial asphalt layer and/or future overlay and may include asphalt corrector course, initial layers, and estimated future asphalt overlay thicknesses as indicated.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},664946,1793280425,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":8,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":8,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":129,"read_time":81},962085320529,"https://ap-avatar.wpscdn.com/davatar_9964176cb1d06d4a9deccf72a44ae3dc","ON ROAD SURFACE  \nBELOW ROAD SURFACE  \nWITH CHANNEL  \nTYPE 4  \nTYPE 1  \nTYPE 2  \nMOUNTABLE KERBS  \nBELOW ROAD SURFACE  \nON ROAD SURFACE-WITH BACKING STRIP  \nTYPE 8(DEPTH 125)  \nTYPE 10(DEPTH 125)  \nTYPE 12(DEPTH 125)  \nTYPE 9(DEPTH 125+'AA')  \nTYPE 11(DEPTH 125+'AA')  \nTYPE 13(DEPTH 125+'AA')  \nSEMI MOUNTABLE KERBS  \n'AA'Refer Note 4.  \nTYPE 3  \nTYPE 22  \nCHANNELS  \nTYPE 25(300 TRAY)  \nTYPE 23(300 TRAY)  \nTYPE 24(450 TRAY)  \nTYPE 26(450 TRAY)  \n# BARRIER KERB AND TRAY\n\nBELOW ROAD SURFACE  \nBARRIER KERBS  \nWITH CHANNEL  \nTYPE 28  \nTYPE 27  \nWITH CHANNEL  \nTYPE 5  \nTYPE 6(300 CHANNEL)  \nTYPE 7(450 CHANNEL)  \n# REFERENCE POSITIONS\n\nA Line of kerb  \n⑧Line of chonel Ip  \nHeight reference  \n# NOTES:\n\n1.CHANNEL THROAT THICKNESS of 150mm and portion of kerbs belowfinished surface shown is a minimum.The underside of the section shouldpreferably coincide with the top of a pavement layer in evel and slope.  \nTYPE 14(300 CHANNEL)  \nTYPE 15(450 CHANNEL)  \n2.TRANSITIONING between kerb types to be carried out over 1.5m(min).  \n3.CONCRETE  \n-Manually placed concrete to be N32/10,to MRTS70.-Machine-paced concrete to MRTS70,Clause 17.20,minimumcementitious content of 320 kg/m³(no compressive strength testingrequired).  \n4.ASPHALT ALLOWANCE 'AA'provides for initial asphalt layer and/or futureoverlay as indicated in the documents.'AA'may include the thickness ofany combination of:-asphalt corrector course -initial asphalt layers -estimated future asphalt overlay.  \n5.DIMENSIONS are in millimetres unless shown otherwise.  \n# ASSOCIATED DEPARTMENTAL DOCUMENTS:\n\nStandard Drawings  \nSpecifications  \nREFERENCED DOCUMENTS:  \nDepartmental Specificotions:  \nMRTSO3 Drainage,Retaining Structures and Protective Treatments  \nMRTS70 Concrete  \n# Australian Standards:\n\nAS 2876Concrete Kerbs and Channels(Gutters)-Manually orMachine Placed  \n\n| Department of Transport and Main Roads   | Qucensland  \u003Cbr>Govenment   |  |  |  | UY  \u003Cbr>◎The Stote of Queersland (Depotment  \u003Cbr>of Tronsport and Main Roods)2020  \u003Cbr>http://cedtivecommons.org/  \u003Cbr>licenses/by/3.0/ou   |  |  |  |  |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |\n| KERB AND CHANNEL   |  |  |  |  |  |  |  |  |  |\n| PROFILES   |  |  |  |  |  |  |  |  |  |\n|  | A3   |  | Standard Drawing No  \u003Cbr>1033  \u003Cbr>Date 7/2020   |  |  |  |  |  |  |\n|  | Not  \u003Cbr>to  \u003Cbr>Scale   |  |  |  |  |  |  |  |  |\n|  | F   | 8   |  | H   |  |  |  | K   | L   |","cbCaimX8Jqp446n8","https://ap.wps.com/l/cbCaimX8Jqp446n8","pdf",201251,"English","# Barrier Kerb and Tray\n## Reference Positions\n## Notes","[{\"question\":\"What is the minimum channel throat thickness requirement?\",\"answer\":\"The channel throat thickness is 150 mm, and the portion of kerbs below the finished surface shown is a minimum.\"},{\"question\":\"Over what minimum distance must transitions between kerb types be made?\",\"answer\":\"Transitions between kerb types must be carried out over a minimum distance of 1.5 m.\"},{\"question\":\"How are concrete and asphalt allowance (AA) requirements defined?\",\"answer\":\"Concrete must follow the stated MRTS70 requirements, including manual or machine placement conditions. Asphalt allowance 'AA' is for the initial asphalt layer and/or future overlay and may include asphalt corrector course, initial layers, and estimated future asphalt overlay thicknesses as indicated.\"}]","BARRIER KERB AND TRAY - Type 4 to Type 28 - Reference Positions - Notes | PDF"]