Page 2803 - Week 09 - Thursday, 8 August 2013
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d) Other costs (itemised in detail)
The estimated cost of flooding impacts on the project is in the order of $12.1 million. The claim in relation to March 2012 flooding is still under assessment by the underwriters. There is potential that the NOP submit a scope change request in relation to flood costs which will have a consequential impact on Painshare/Gainshare amounts at the end of the project. ACTEW is currently in discussion with the BWA NOP’s regarding the substantiation of a potential Scope Change Claim relating to consequential damages arising from floods not covered by insurances.
(2) The information is shown in the ‘Plan’ reports that are attached as follows;
(a) Appendix 1- BWA Performance Management Plan (Application of Performance Modifiers and Key Performance Indicators)
March 2010; and
(b) Appendix 2- BWA Performance Measurement Plan – Annex D (Procedure for Measuring the ECD Non Cost Project Performance) March 2010.
(3) To date there have been no scope changes requested by the NOP on the ECD to date.
(4) The estimated direct costs for the construction of the dam at completion are provided below together with the originally agreed estimates in the agreed TOC in 2009. Note the table does not include the NOP fee component. See response to Question 1(c) above.
|
Cost Description |
Agreed TOC 2009 $m |
Estimated AOC $m |
|
Overheads |
85.5 |
74.0 |
|
Design |
15.1 |
22.2 |
|
Abutment and Dam |
93.7 |
146.4 |
|
Saddle Dams and Quarry |
41.4 |
43.8 |
|
Structures |
27.7 |
48.7 |
|
Sub-Total Direct Costs |
263.4 |
335.1 |
|
Flood Costs |
0 |
12.1 |
|
TOTAL Direct Costs |
263.4 |
347.2 |
This table includes an allowance for $12.1M flood related costs. The ‘Net Impact of Flood’ after insurance recovery is estimated to be in the order of $5 million. Note: This table does not include costs associated with the Cotter Precinct or Fish Studies and Habitat. See response to Question 1 above for these items.
(5) The 2005 report on which the early dam cost was based had an estimated foundation excavation volume of approximately 85,000 m3. At the time of approval of the TOC and after extensive additional geotechnical investigation, the estimated foundation excavation volume increased to 159,600 m3.
The actual excavated volume of foundations from detailed survey, excluding saddle dams and access roads, was 165,800 m3.
At the time of the development of the TOC the estimated foundation excavation depth was between 4 -7 metres below natural surface level.
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