Scg 27099(S) · MCU17/0512

F.2   Site Drainage recommendations




SCG Consulting Engineers              Appendices.C to F: Page 6 of 6


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Site Drainage recommendations

 

 

 

 

 

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DIRECTION OF He ae
GROUND FALL [7 >
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TYPICAL DRAINAGE LAYOUT
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CUT-OFF ORAIN ALONG
HIGH SIDE OF RETAINING

CUT-OFF DRAIN AT HIGH
RETAINING WAL ML

SDE OF ENBANKNENT CUT

 

  
    
 

 
 
 
 

Z
Z
24 GROUND SURFACE FALL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GROUND SURFACE FALL
FOOTING & 20 MIN FOR 15m MN FOOTING 8 7) 1:20 UN FOR NN
$8 SHADED 5 c —
] REAR OF WALL ORAINAGE,
. PROWOE FLUSH OUT
FROUTY
GUT-OFF ORAN AT TOE GUY. DRAW at AS
TAINING WALL
OF EMBANKMENT OUT ORECTED AROUND THE
DVRECTED AROUND THE
PERWETER OF THE
PERIMETER OF THE PORWETE
D¥ELLNG
TYPICAL DRAINAGE « RETAINING WALLS:

TYPICAL DRAINAGE ~ CUT FILL SITE

Guidelines for Site Drainage

1. The site must be prepared prior to construction works that enables the site to drain
throughout construction and not allow flooding of foundation works, temporary pumping
systems could be required existing drainage paths are trapged. Temporary down pipes must
be installed following roof construction and drained away from the construction area.
Drainage tranches should be clay capped to stop moisture entering foundations

2, Upon completion the ground surrounding the dwelling should be graded away from the
dwelling as indicated. Paving and terrace slabs adjacent the dwelling improve this crainage.
Perimeter drainage should be provided arounc the dwelling as indicated and must be
drained to anproved drainage facilities dovnsloge from the dwelling.

3, Rear of wall drainage beyond constructed retaining walls must be drained to approved
drainage facilities downslope from the dialling. These drains should he provided with flush
‘ut facilities at the upstream end of the drainage line and regularly maintained

SITE DRAINAGE RECOMENDATIONS ALL SITES

 

 

 

SCG Consulting Engineers Appendices.C to F: Page 6 of 6