Retarding Basin - maintenance inspection

• Asset ID

• Conducted on

  Date

• Audit conducted by

  Select Leah Strauch Sophie Thomson Enter name

  • Leah Strauch
  • Sophie Thomson
  • Enter name

• Name

• Locality

  Select Balnarring Baxter Bittern Dromana Hastings Mornington Mt Eliza Mt Martha Portsea Rosebud Rye Safety Beach Somerville Sorrento Tyabb OTHER

  • Balnarring
  • Baxter
  • Bittern
  • Dromana
  • Hastings
  • Mornington
  • Mt Eliza
  • Mt Martha
  • Portsea
  • Rosebud
  • Rye
  • Safety Beach
  • Somerville
  • Sorrento
  • Tyabb
  • OTHER
• Address
  Address

• Control

  Council

  Melbourne Water

  Other

• Conditions

  Dry ground conditions

  Wet ground conditions

• Weather

  Select Sunny Overcast Rain Heavy Rain Light Windy Sunny and windy Rain and windy

  • Sunny
  • Overcast
  • Rain Heavy
  • Rain Light
  • Windy
  • Sunny and windy
  • Rain and windy

• Date/Time of last rainfall

  Date

• Photo of entire asset & surroundings

  Media

• Asset function

• Asset Function: (a general description)
  - location
  - catchment
  - key features eg, concrete apron to assist in sediment removal
  - predominant plant species (if present)
  - depth
  - current condition

• Type of catchment

• Type of catchment:
  eg. pavement only, grassed, garden beds, residential, industrial, other

• Previous inspections

3.1 Inlet

• Can the inlet be located?

  Yes

  No

  N/A

• Include number of inlets, and photographs of each one

• Is the structure obstructed or blocked?

  Yes

  No

  N/A

• Input photos and free text details. If multiple inlets are present, record % blockage of worst case.

• % blockage (100% = completely blocked)

3.2 Outlet

• Can the outlet be located?

  Yes

  No

  N/A

• Description of outlet (Is outlet pipe submerged? What style of flow control is used? Is the outlet accessible?)

• Is the structure obstructed or blocked?

  Yes

  No

  N/A

• Input photos and details

• % blockage

• Is an underdrain visible?

  Yes

  No

  N/A

• Input details and photos of underdrain

3.3 Overflow

• Can the overflow/bypass be located?

  Yes

  No

  N/A

• Include overflow description and design/maintenance observations

• Is the structure obstructed or blocked?

  Yes

  No

  N/A

• Input photos and free text details

• % blockage

3.4 Access

• Is vehicle access clearly available to the asset and structures?

  Yes

  No

  N/A

3.5 Other Structures

• Other structures to record?

  Yes

  No

  N/A

• Input component name under details

• is the structure obstructed or blocked?

  Yes

  No

  N/A

• Input photos and free text details

• % blockage

4.1 Surface Conditions

• Gross pollutants

  Yes

  No

  N/A

• Add description of pollutants

• Gross pollutants per m2

4.2 Erosion

• Erosion of batter slope?

  Yes

  No

  N/A

• Is there erosion near civil structures?

  Yes

  No

  N/A

• Erosion of base? (eg. preferential flows)

  Yes

  No

  N/A

4.3 Vegetation

• Are there any plants/trees present on embankment?

  Yes

  No

  N/A

• Include details of plants and locations

• % coverage

• Are there plants/trees present on base?

  Yes

  No

  N/A

• Include details of plants and locations

• % coverage

• Does the grass show signs of maintenance?

  Yes

  No

  N/A

• - turf cover >90%
  - grass has been mowed

5.1 Initial assessment

• Health and Safety issues

• Are there any elements or issues that the assessors consider to be a risk to health and safety? Please provide a full description

• Planned maintenance tasks

  Select Clear inlet/outlet(s) of sediment and debris Mowing of grass Replacing of grass Minor removal of plants Repair minor structural damage Treat for weeds/pests Other

  • Clear inlet/outlet(s) of sediment and debris
  • Mowing of grass
  • Replacing of grass
  • Minor removal of plants
  • Repair minor structural damage
  • Treat for weeds/pests
  • Other

• Corrective maintenance tasks

  Select Hydraulic conductivity assessment Feature and level survey of asset Ongoing assessment over varied weather conditions and seasons Creation of flow distribution Level resetting/development of extended detention/significant re-shaping of surface Significant re-vegetation and establishment Major removal of plants/trees Reconstruction of civil components Re-design in consultation with client

  • Hydraulic conductivity assessment
  • Feature and level survey of asset
  • Ongoing assessment over varied weather conditions and seasons
  • Creation of flow distribution
  • Level resetting/development of extended detention/significant re-shaping of surface
  • Significant re-vegetation and establishment
  • Major removal of plants/trees
  • Reconstruction of civil components
  • Re-design in consultation with client

• Initial outcome

  Decommission

  Rectification works

  Planned maintenance only

5.2 Final notes