== Remove material - please provide refs == 

  
 ==Costs and section length== 

 {| class="wikitable" border="1" 
 |- 
 ! Section 
 ! Length 
 ! Cost ($ million) 
 ! Completion date 
 |- 
 | Upper Harbour Motorway SH18 
 | 12 Km 
 | 400 
 | 2012 (Greenhithe section Dec 2007) 
 |- 
 | Waterview Connection SH20 - 16 connection 
 | 4.5 Km (3.2 Km tunnel) 
 | 2200 
 | 2015 (possibly later) 
 |- 
 | Mt Roskill extension SH20 
 | 4 Km 
 | 186 
 | April 2009 
 |- 
 | SH20 widening 
 | 4 Km 
 | 230  
 | Mid 2011 
 |- 
 | SH20 - 1 connection 
 | 4.5 Km 
 | 210 
 | August 2010 
 |} 

 All up the entire route could cost more than $3 billion dollars and may be completed by 2015, with possible tolling of one or more sections. The entire route is either 6 lanes or has the capacity to be expanded to 6 lanes later.