BARRIER KERB AND TRAY - Type 4 to Type 28 - Reference Positions - Notes

Oct 29, 2026

Upload by Sarah

Engineering standard drawing detailing barrier kerb and tray profiles and their placement relative to road and below-road surfaces. 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.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages1

Reading Time3 min

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Barrier Kerb and Tray

Reference Positions

Notes

ON ROAD SURFACE BELOW ROAD SURFACE WITH CHANNEL TYPE 4 TYPE 1 TYPE 2 MOUNTABLE KERBS BELOW ROAD SURFACE ON ROAD SURFACE-WITH BACKING STRIP TYPE 8(DEPTH 125) TYPE 10(DEPTH 125) TYPE 12(DEPTH 125) TYPE 9(DEPTH 125+'AA') TYPE 11(DEPTH 125+'AA') TYPE 13(DEPTH 125+'AA') SEMI MOUNTABLE KERBS 'AA'Refer Note 4. TYPE 3 TYPE 22 CHANNELS TYPE 25(300 TRAY) TYPE 23(300 TRAY) TYPE 24(450 TRAY) TYPE 26(450 TRAY) # BARRIER KERB AND TRAY BELOW ROAD SURFACE BARRIER KERBS WITH CHANNEL TYPE 28 TYPE 27 WITH CHANNEL TYPE 5 TYPE 6(300 CHANNEL) TYPE 7(450 CHANNEL) # REFERENCE POSITIONS A Line of kerb ⑧Line of chonel Ip Height reference # NOTES: 1.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. TYPE 14(300 CHANNEL) TYPE 15(450 CHANNEL) 2.TRANSITIONING between kerb types to be carried out over 1.5m(min). 3.CONCRETE -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). 4.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. 5.DIMENSIONS are in millimetres unless shown otherwise. # ASSOCIATED DEPARTMENTAL DOCUMENTS: Standard Drawings Specifications REFERENCED DOCUMENTS: Departmental Specificotions: MRTSO3 Drainage,Retaining Structures and Protective Treatments MRTS70 Concrete # Australian Standards: AS 2876Concrete Kerbs and Channels(Gutters)-Manually orMachine Placed | Department of Transport and Main Roads | Qucensland
Govenment | | | | UY
◎The Stote of Queersland (Depotment
of Tronsport and Main Roods)2020
http://cedtivecommons.org/
licenses/by/3.0/ou | | | | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | KERB AND CHANNEL | | | | | | | | | | | PROFILES | | | | | | | | | | | | A3 | | Standard Drawing No
1033
Date 7/2020 | | | | | | | | | Not
to
Scale | | | | | | | | | | | F | 8 | | H | | | | K | L |

FAQs

What is the minimum channel throat thickness requirement?

The channel throat thickness is 150 mm, and the portion of kerbs below the finished surface shown is a minimum.

Over what minimum distance must transitions between kerb types be made?

Transitions between kerb types must be carried out over a minimum distance of 1.5 m.

How are concrete and asphalt allowance (AA) requirements defined?

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.

Oct 29, 2026

Upload by Sarah