16-001014-02A (Ultimate SCMMP)

Purpose: To ensure earthworks bulking out, trimming and profiling and the key levels of functional (hydraulic) structures
are in 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.
                                                                                           Action (if
Items                                     Checked              Satisfactory                                                 Initial
                                                                                           unsatisfactory)
As constructed survey completed and
attached to this form

Photos taken and attached to this form

Set-out of system is correct

Base levels are at correct elevation
(+50 mm)

Base at correct grading (0.5%)

Punch out holes in overflow pit are
correct size, correct level and above
invert level of outlet pipe (+25 mm)
Overflow pit is correct size and crest
and invert is at correct level (+25 mm)
Outlet pipe invert levels are correct
(upstream and downstream) (+25 mm)

Outlet pipe is free draining

Overflow weir (if required) is correct
length and at correct level (+25 mm)
Overflow weir (if required) is keyed
into bund
Bunds/embankments surrounding the
system are at correct levels or above

HOLD POINT: Superintendent and bioretention designer inspection and sign-off before proceeding.

Comments (attach and refer to additional pages if necessary)




NB: As constructed survey and drawings and photos attached.


Signed by superintendent:
Print name:
Date:
AND
Signed by bioretention designer:
Print name:
Date:
FORM B — Under-drainage

Purpose: To ensure under-drainage is installed correctly before the bioretention media is installed.



                               CONSTRUCTION AND ESTABLISHMENT SIGN-OFF FORMS – BIORETENTION
                                                                                   SYSTEMS                                      4

                                                               © South East Queensland Healthy Waterways Partnership 2010