Approved Plans and Documents - OPW22/0303

FORM F — PROTECTIVE MEASURES
Purpose: To ensure protective measures are correctly installed to protect the bioretention system while building is occurring in the catchment
Protection option adopted (Option 1, 2 or 3)

OPTION 1 — SURFACE PROTECTION DURING CHECKED SATISFACTORY ACTION (IF INITIAL
BUILDING PHASE UNSATISFACTORY)

Continuous sediment fences installed around |
perimeter of filter media and top of batter.

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Where landscape works are not to commence |
immediately then cover batters with filter cloth.

Protective covering (filter cloth + 25 mm topsoil +
turf) installed across entire filter media area of
system.
OPTION 2 — BYPASS AND EARLY ACTION (IF
CHECKED SATISFACTORY INITIAL
ESTABLISHMENT UNSATISFACTORY)
Continuous sediment fences installed around
perimeter of filter media and top of batter.

 

Where landscape works are not to commence
immediately then cover batters with filter cloth.

 

Temporary bund installed (where required) to
prevent stormwater runoff from entering bulk of
system. Bund keyed into batters of bioretention
and crest level higher than pits and weirs.

 

 

 

Temporary protective covering (filter cloth + 25
mm topsoil + turf) installed within bunded area.

 

OPTION 3 - SEDIMENT BASIN AND CHECKED SATISFACTORY ACTION (IF INITIAL
BIORETENTION FUNCTION UNSATISFACTORY)

Continuous sediment fences installed around
perimeter of filter media and top of batter

Sediment basin installed upstream of bioretention
in accordance with either (including hydraulic
structures):

* WSUD Technical Design Guidelines for SEQ
(SEQHWP)

+ Local erosion and sediment control guidelines or
Best Practice Erosion and Sediment Control
(IECA, 2008)

Suitable access provided to sediment basin for
clean out

Bioretention system installed downstream of |

sediment basin

 

 

Protective covering (filter cloth + 25mm topsoil + |
turf) installed across entire filter media area of | |

basin.

 

 

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

Comments (attach and refer to additional pages if necessary)

NB: Photos attached.

Signed by superintendent: Signed by bioretention designer:
Print name: Print name:
Date: Date:

Document Set ID: 22315062 | ¢ terbydesign
Version: 1, Version Date: 20/02/2023