<Tr> <Th> Cost estimate </Th> <Td> $1.7 billion </Td> </Tr> <Tr> <Th> Stakeholders </Th> <Td> Government of New Zealand, NZ Transport Agency, Auckland Council, Campaign for Better Transport, Cycle Action Auckland, Friends of Oakley Creek, North West Community Association, various further community groups and submitters </Td> </Tr> <P> The Waterview Connection is a motorway section through west / central Auckland, New Zealand . It connects State Highway 20 in the south at Mt Roskill to State Highway 16 in the west at Point Chevalier, and is a part of the Western Ring Route . </P> <P> The Waterview Connection is 4.5 km long, of which 2.5 km are in the form of twin tunnels . The Waterview Tunnel supersedes the Lyttelton Road Tunnel as New Zealand's longest road tunnels . By 2026, the link is expected to carry 83,000 vehicles a day . There are three lanes of traffic in each tunnel . </P>

Where does the waterview tunnel start and finish