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MCU14/0056 - Attachment G - Engineering Report & Stormwater Management Plan
Plans and drawings
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Log in to see the plans as drawn MATERIALS NECESSARY TO ALLOW ACCESS FOR 18. COVER PIPE/S WITH SUFFICIENT ROCK MAINTENANCE
CONSTRUCTION. CLEAR THE REMAINDER OF (MINIMUM 300mm LAYER) TO SATISFY
CULVERTS: ANY COMMERCIAL CONDUIT THAT
THE APPROACH RAMPS ONLY WHEN MANUFACTURER’S LOADING REQUIREMENTS 1. TEMPORARY WATERCOURSE CROSSINGS
IS SUITABLE FOR THE REQUIRED TRAFFIC
ADEQUATE DRAINAGE AND SEDIMENT TO AVOID DAMAGE TO THE PIPE/S RESULTING SHOULD BE INSPECTED WEEKLY AND AFTER
LOADING.
CONTROLS ARE IN PLACE. FROM THE EXPECTED TRAFFIC LOAD. SLOPE ANY SIGNIFICANT CHANGE IN STREAM FLOW.
ROCK: MINIMUM 150mm NOMINAL ROCK SIZE. OF ROCK FACE UPSTREAM AND DOWNSTREAM
7. IF FLOW DIVERSION SYSTEMS CANNOT BE OF THE CULVERT NO STEEPER THAN 3:1 (H:V). 2. DEBRIS TRAPPED ON OR UPSTREAM OF THE
AGGREGATE: 50–75mm CLEAN AGGREGATE.
INSTALLED, THEN CONDUCT BANK CROSSING SHOULD BE REMOVED.
GEOTEXTILE FABRIC: HEAVY-DUTY, EXCAVATIONS BY PULLING THE SOIL AWAY 19. FORM THE SHAPE OF THE ROAD SURFACE
NEEDLE-PUNCHED, NON-WOVEN FILTER FROM THE CHANNEL. IN ACCORDANCE WITH THE PLANS AND/OR 3. REPAIR ANY DAMAGE CAUSED BY
CLOTH (MINIMUM BIDIM A34 OR EQUIVALENT). STANDARD DRAWINGS. CONSTRUCTION TRAFFIC. IF TRAFFIC HAS
8. WHERE PRACTICABLE, CONSTRUCT THE EXPOSED BARE SOIL, STABILISED AS
INSTALLATION WATERCOURSE CROSSING PERPENDICULAR 20. APPLY A SUITABLE COVER OF AGGREGATE APPROPRIATE. MAINTAIN A MINIMUM 200mm
TO THE CHANNEL. OVER THE ROCK FILL TO FORM THE COVER OVER THE CULVERTS.
1. PRIOR TO COMMENCING ANY WORKS, TRAFFICABLE ROAD SURFACE.
OBTAIN ALL NECESSARY APPROVALS AND 9. WHERE PRACTICABLE, THE APPROACH 4. CHECK FOR EROSION OF THE FORMED
PERMITS REQUIRED TO CONSTRUCT THE RAMPS SHOULD BE STRAIGHT FOR AT LEAST 21. FINISH CONSTRUCTION AND STABILISATION EMBANKMENT, CHANNEL SCOUR, OR ROCK
TEMPORARY WATERCOURSE CROSSING, 10m AND SHOULD BE ALIGNED WITH THE OF THE APPROACH ROADS INCLUDING THE DISPLACEMENT. MAKE ALL NECESSARY
INCLUDING PERMITS FOR THE DISTURBANCE CROSSING. APPROACH RAMPS EACH SIDE OF THE BRIDGE REPAIRS IMMEDIATELY.
OF BANK VEGETATION, AQUATIC VEGETATION CROSSING.
(e.g. MANGROVES) AND ANY TEMPORARY 10. WHERE PRACTICABLE, DIRECT 5. CHECK THE BYPASS FLOODWAY MAKING
INSTREAM FLOW DIVERSION BARRIERS OR STORMWATER RUNOFF FROM THE APPROACH 22. TAKE ALL REASONABLE MEASURES TO SURE THE BANKS ARE STABLE.
SEDIMENT CONTROL MEASURES. RAMPS INTO STABLE DRAINS, ADJACENT PREVENT EXCESS ROCK, DEBRIS AND
VEGETATION, OR APPROPRIATE SEDIMENT CONSTRUCTION MATERIAL FROM ENTERING 6. CHECK FOR EXCESSIVE EROSION ON THE
2. REFER TO APPROVED PLANS FOR LOCATION TRAPS TO MINIMISE THE RELEASE OF THE WATERCOURSE, ESPECIALLY ANY STILL APPROACH ROADS.
AND CONSTRUCTION DETAILS. IF THERE ARE SEDIMENT INTO THE WATERCOURSE. OR FLOWING WATER.
QUESTIONS OR PROBLEMS WITH THE 7. CHECK THE CONDITIONS OF ANY FLOW
LOCATION OR METHOD OF INSTALLATION, 11. SHAPE THE CHANNEL, IF NECESSARY, TO 23. IF IT IS NOT PRACTICABLE TO STABILISE DIVERSION CHANNELS/BANKS AND THE
CONTACT THE ENGINEER OR RESPONSIBLE RECEIVE THE PIPE/S. THE ACCESS RAMPS AGAINST EROSION, THEN OPERATING CONDITIONS OF ASSOCIATED
ON-SITE OFFICER FOR ASSISTANCE. INSTALL FLOW DIVERSION BANKS ACROSS SEDIMENT TRAPS.
12. IF HIGHLY EROSIVE SOILS ARE DETECTED, THE WIDTH OF EACH ACCESS RAMP
3. ENSURE THAT THE LOCATION OF THE THEN APPROPRIATELY STABILISE SUCH SOILS ADJACENT THE TOP OF THE CHANNEL BANK, REMOVAL
CROSSING WILL NOT INTERFERE WITH AS SOON AS PRACTICABLE. AND AT REGULAR INTERVALS DOWN THE
FUTURE CONSTRUCTION WORKS. RAMPS (AS REQUIRED) TO PREVENT OR 1. TEMPORARY WATERCOURSE CROSSINGS
13. COVER THE CROSSING FOOTING WITH MINIMISE SEDIMENT-LADEN RUNOFF FLOWING SHOULD BE REMOVED AS SOON AS POSSIBLE
4. PRIOR TO SIGNIFICANT LAND CLEARING OR HEAVY-DUTY FILTER CLOTH. DIRECTLY INTO THE WATERCOURSE. AFTER ALTERNATIVE ACCESS IS ACHIEVED OR
CONSTRUCTION OF THE APPROACH RAMPS, THE CULVERT IS NO LONGER NEEDED.
ESTABLISH ALL NECESSARY SEDIMENT 14. COVER THE FILTER CLOTH WITH A 24. APPROPRIATELY STABILISE ANY
CONTROL MEASURES AND FLOW DIVERSION MINIMUM 150mm OF CLEAN, 50 TO 75mm DISTURBED WATERCOURSE BANKS. 2. REMOVE ALL SPECIFIED MATERIALS AND
WORKS (INSTREAM AND OFF-STREAM AS AGGREGATE. DISPOSE OF IN A SUITABLE MANNER THAT WILL
REQUIRED), CLEARING ONLY THOSE AREAS 25. STABILISE ALL DISTURBED AREAS THAT NOT CAUSE AN EROSION OR POLLUTION
NECESSARY FOR INSTALLATION OF THESE 15. PLACE THE SPECIFIED SIZE AND NUMBER ARE LIKELY TO BE SUBJECTED TO FLOWING HAZARD.
MEASURES. OF CULVERT CELLS AND ALIGN THEM WITH WATER, INCLUDING BYPASS AND OVERFLOW
THE DIRECTION OF THE DOWNSTREAM AREAS, WITH ROCK OR OTHER SUITABLE 3. RESTORE THE WATERCOURSE CHANNEL TO
5. TO THE MAXIMUM DEGREE PRACTICABLE, CHANNEL. MATERIALS. ITS ORIGINAL CROSS-SECTION, AND SMOOTH
CONSTRUCTION ACTIVITIES AND EQUIPMENT AND APPROPRIATELY STABILISE AND
Catchments & Creeks Pty Ltd
MUST NOT OPERATE WITHIN OPEN FLOWING 16. ENSURE THE PIPES EXTEND AT LEAST REVEGETATE ALL DISTURBED AREAS.
WATERS. 300mm BEYOND THE PROPOSED EXTEND OF
ROCK FILL.
6. MAINTAIN CLEARING AND EXCAVATION OF
THE WATERCOURSE BED AND BANKS TO A 17. FILL BETWEEN THE PIPE/S WITH 75 TO Drawn: Date:
MINIMUM. INITIALLY CLEAR ONLY THE AREA 100mm AGGREGATE.
GMW Dec-09 Temporary Culvert Crossing TCC-02
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