NOTES:
1. TRENCHLESS TECHNOLOGY TECHNIQUES ARE THE PREFERRED METHOD FOR ROAD CROSSING SERVICES CONDUITS IN EXISTING ROADWAYS.
2. ASPHALT TO ASPHALT JOINT - SAW CUT EXISTING AC WHERE SHOWN OR AS AGREED WITH COUNCIL REPRESENTATIVE ON SITE TO PROVIDE CLEAN CUT AND SEAL WITH BITUMEN EMULSION CRACK SEALANT. APPLY BITUMEN EMULSION TACK COAT TO ALL OTHER NEWLY EXPOSED ASPHALT SURFACES PRIOR TO PLACEMENT OF REINSTATED ASPHALT PAVEMENT OR SURFACE.
3. ALL EXPOSED FACES OF GRAVEL PAVEMENT TO BE PRIMED DURING SEALING OPERATIONS.
4. WHERE THE TRENCH HAS BEEN CONSTRUCTED LONGITUDINALLY IN THE ROAD, THEN THE FINAL SURFACE REPAIR WIDTH IS TO MATCH THE EXISTING LANE WIDTH AND TERMINATE 50mm CLEAR OF THE ROAD CENTRELINE OR LANE LINE LINEMARKING TO ALLOW FOR THE BITUMEN EMULSION JOINT SEAL. REINSTATEMENT OF SURFACE ADJACENT TO THE KERB OR ROAD PAVEMENT EDGE TO EXTEND FULLY TO THE KERB LINE OR EDGE OF PAVEMENT.
5. A PART LANE RESURFACING MAY BE APPROVED WHERE THE FULL REINSTATEMENT IS ABLE TO BE COMPLETED BETWEEN THE INNER AND/OR OUTER EDGE AND CENTRE OF THE LANE. WHERE THIS IS TO OCCUR THE RESURFACING MAY EXTEND 300 BEYOND THE CENTRE OF THE LANE.
6. THE VERTICAL DEVIATION FROM A 3m STRAIGHT EDGE PARALLEL TO THE CENTRELINE OF THE EXISTING ROAD IS NOT TO EXCEED 5mm.
7. ASPHALT SURFACE REPAIRS ARE TO BE UNDERTAKEN WITHIN 24 HOURS UNLESS APPROVED OTHERWISE BY COUNCIL. FINAL ASPHALT LAYERS TO BE PLACED BY PAVING MACHINE.
8. WHERE BTB IS USED TO REINSTATE EXISTING GRANULAR PAVEMENT, SUBSOIL DRAINAGE IS TO BE INSTALLED ON THE UPHILL SIDE OF THE TRENCH UNLESS APPROVED OTHERWISE BY COUNCIL,
AND SUPPLIED AND PLACED IN ACCORDANCE WITH MRC SUPPLEMENTARY SPECIFICATION No.8401.
9. THIS STANDARD DRAWING TO BE READ IN CONJUNCTION WITH THE FOLLOWING REFERENCE SPECIFICATIONS, ANNEXURES AND SUPPLEMENTARY SPECIFICATIONS
- MRS03, MRS04, MRS05, MRS07B, MRS08, MRS11, MRS30, MRS39, MRS91
10. FOR BACKFILL REQUIREMENTS TO TOP OF OVERLAY ZONE FOR STORMWATER DRAINAGE PIPES, REFER DTMR STD DWG No.1359.
11. FOR LOCATION OF MARKER TAPE AND COVER STRIP FOR TRAFFIC SIGNAL CONDUITS, REFER TO DTMR STD DWG No.1149.
12. ALL DIMENSIONS IN MILLIMETRES (U.N.O.) EXISTING
GRANULAR PAVEMENT EXISTING
ASPHALT PAVEMENT
UNBOUND MATERIAL TO MATCH EXISTING BTB
(NOTE 8)
LEAN MIX CONCRETE LAYER TRANSVERSE TRENCH: 2200 MIN.
LONGITUDINAL TRENCH: TO MATCH ROAD LANE WIDTH AS PER NOTE 4
50
50
300 MIN.
TRENCH WIDTH (VARIES) 750 MIN. (MINOR ROADS) 1200 MIN. (MAJOR ROADS)
EXISTING ROAD SURFACE
BOTTOM PAVEMENT LAYER GRANULAR PAVEMENT EXAMPLE
FULL DEPTH ASPHALT / BTB PAVEMENT EXAMPLE
ROAD CENTRELINE OR LANE LINE LINEMARKING.
REFER NOTE 4
50 THICK LAYER OF BEDDING SAND BETWEEN TOP OF TRENCH BACKFILL AND THE LEAN MIX CONCRETE LAYER
LEAN MIX CONCRETE, FLOWABLE FILL OR STABILISED SAND 100 - 150 THICK TO
SUIT SERVICE PROVIDER REQUIREMENTS
BACKFILL / BEDDING OF SERVICE / CONDUIT TO SERVICE AUTHORITY SPECIFICATION. IF NOT SPECIFIED, BEDDING AND HAUNCH MATERIALS IN ACCORDANCE WITH DTMR STD DWG No.1359
TYPICAL TRENCH REINSTATEMENT CROSS SECTION
IF FLOWABLE FILL CONCRETE OR OTHER LOW PERMEABLE FILL USED TO SURROUND SERVICE, PROVIDE 50 THICK LAYER OF BEDDING SAND
VARIES
SEAL JOINS AND TACK COAT BETWEEN ASPHALT SURFACES. REFER NOTE 2
N.T.S STRUCTURAL ASPHALT TO MATCH
EXISTING
50
VARIES 300 MIN.
50mm DG ASPHALT PAVEMENT RESURFACING
SHEET OF WORKS JOB No.
DRAWING No. AMEND.
LEVEL DATUM
MERIDIAN SURVEY FILE No SURVEY
MANAGER TECHNICAL SERVICES G. HAWES RPEQ 5693 DATE
DRAWN
DESIGNED
CHECKED SIGNED SIGNED SIGNED
AMENDMENTS AND REVISIONS DESCRIPTION
DATE APPVD
ENGINEERING AND
JASON DEVITT DATE DIRECTOR
DATE DATE DATE
COMMERCIAL INFRASTRUCTURE
1 1
-
A3-00899 C STANDARD
UTILITY TRENCH RESTORATION
FLEXIBLE PAVEMENTS
- - -
\STANDARD DRAWINGS\A3-00899 -
- - -
- - -
- - -
ORIGINAL SIGNED BY 22.02.13
ORIGINAL SIGNED BY G.HAWES
22.02.13
A - ORIGINAL ISSUE -
B 18.03.16 REVISED FORMAT AND TITLEBLOCK GH C 16.05.16 DRAWNING NAME AMENDED
