QB1910553 - STG 1 19 Ind Units - Lot 13 (#64) - QB1910553 - MISC - Form 11 Final & Supporting Certificates - 26.11.2021 KW

 

accordance with design drawings and specifications, The earthworks and structures dictate the movement of stormwater through
the bioretention system and are a critical element in the function of the system,

 

Items Checked Satisfactory Action (if unsatisfactory) | Initial

 

DR- site check only | Yes

with tape measure -
As constructed survey completed and no survey - concrete

attached to this form foor and retaining
walls

 

 

Photos taken and attached to this form

 

 

 

 

 

 

 

 

 

 

Set-out of system is correct DR Yes
Base levels are at correct elevation (450 | DR Yes
mm)

Base at correct grading (0.5%) DR Yes
Punch out holes in overflow pit are DR Yes
correct size, correct level and above

invert level of outlet pipe (+25 mm)

Overflow pit is correct size and crest and OR Yes
invert is at correct level (+25 mm)

Outlet pipe invert fevels are correct DR Yes
{upstream and downstream) (+25 mm)

Outlet pipe is free draining DR Yes
Overflow weir (if required) is correct DR Yes

length and at correct level (+25 mm)

 

Overflow weir (if required) is keyed into | N/A
bund

Bunds/embankments surrounding the DR - retaining walls Yes
system are at correct levels or above

 

 

 

   

 

 

 

 

 
  
 

 

Comments (attach and refer to additional pages if necessary)

 

 

 

L

NB: As constructed survey and drawings and photos attached.

Signed by superintendent: bo

a
Printname: _ Doug Reynolds
Date:__06/10/2021
AND

Signed by bioretention designer:
Se

Print name:

 

Date:

  

FORM B — Whit erly

 
 

CONSTRUCTION AND ESTABLISHMENT SIGN-OFF FORMS — BIORETENTION SYSTEMS 4

© South East Queensland Healthy Waterways Partnership 2010