Attachment C - SCG Soil test and Footing report

G.2   Site Drainage recommendations




SCG Consulting Engineers              Appendices C to G: Page 6 of 6


[OCR of page images]
G.2 Site Drainage recommendations

 

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DIRECTION OF -& ~>s
GROUND FALL [7 >

 

 

 

 

DRAIN
UN ge — Se

  
 
 
    
 

 

 

 

gl IVRECTN OF
“a, | ROUND FAL

 

 

 

 

 

 

CUT-OFF ORAIN ALONG
HIGH SIDE OF RETAINING
RETAINING WAL ML

CUT-OFF DRAIN AT HIGH
SDE OF ENBANKNENT CUT

 

  
    
 

 
 
 
 

GROUND SURFACE FALL

SSS sans

 

 

 

 

 

 

GROUND SURFACE FALL
FOOTING & 1:20 MIN FOR 15m MIN FOUN ///] 1:20 WN FOR Sm NA
8 SHADED —s
REAR OF WALL DRAINAGE,

 

 

 

— x» / See

 

PROWDE FLUSH OUT
FACUTY

 

 

 

 

 

|

‘CUT-OFF DRAIN AT BASE

 

 

 

QUT-OFF ORAIN AT TOE OF RETAINING MALL
OF ENBANKMENT QUT ORECTED AROUND THE
DIRECTED AROUND. THE

PERINETER OF THE
PERIMETER OF THE D¥ELUNG
DVELUNG

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 G: Page 6 of 6