The Eastern Distributor is a six-kilometre long motorway in Sydney, New South Wales, Australia. Part of Metroad 1, it links the Sydney central business district (CBD) with the Airport. The centre-piece is a 1.7km tunnel running from Woolloomooloo to Surry Hills.
The motorway is tolled in one direction (northbound) with the toll plazas at Woolloomooloo and at the William Street exit. Prior to 1 April 2008 the toll was $4.50 for a car or motorbike and $9.50 for other vehicles. From April 2008 the toll for cars and motorbikes was to rise to $5.
This motorway is part of the 110 kilometre Sydney Orbital Network. For about half its length, it is in a trench inside South Dowling Street. The motorway provides a southbound exit for Lachlan Street / Dacey Avenue, a northbound exit for Cleveland Street, northbound entrance ramp from Cleveland Street and connections to William Street. There are also connection to the Cross City Tunnel, giving motorists direct connections under the city to the Western Distributor. There are also northbound/southbound entry/exits to Moore Park Road and Anzac Parade.
The project's centrepiece is the 1.7 km piggyback tunnel under one of Australia's most densely populated urban areas. Two separate contractors began digging from either end at Surry Hills and Woolloomooloo in January 1998. On December 4th of that year the two teams were shaking hands in the middle – 30 m beneath Taylor Square. By March 1999 all digging was complete., after 400,000 cubic metres of soil, largely Sydney Hawkesbury Sandstone was removed – equal to 40,000 truckloads.
The tunnel's claim to fame at the time it was built was that at 24.5 m across at its widest point, it was the widest tunnel in the world. At 14 m high, the tunnel is also notably large from the ceiling to the floor. A concrete ledge in the middle was added after the original construction phase to separate the northern and southern roadways – with northbound cars using the three top lanes and southbound traffic using three lanes directly beneath. The requirement for three lanes each way within the existing roadway corridor meant a piggyback tunnel was the only choice.
| Eastern Distributor | |||
| Northbound exits | Distance from Cahill Expressway (km) | Distance from Southern Cross Drive (km) | Southbound exits |
| End Eastern Distributor continues as Cahill Expressway to Hornsby / Newcastle | 0 | 6 | Start Eastern Distributor from Cahill Expressway |
| TOLL PLAZA | Local Road Cathedral Street | ||
| William Street Cross City Tunnel (westbound only) | Paddington, Sydney William Street | ||
| TUNNEL | -- | -- | TUNNEL |
| no exit | -- | 4 | Randwick, La Perouse Anzac Parade Moore Park Road |
| To Cleveland Street via Surry Hills South Dowling Street | 3 | 3 | To Lachlan Street via Waterloo South Dowling Street |
| TUNNEL | -- | -- | TUNNEL |
| Waterloo, Moore Park South Dowling Street | 5 | -- | no exit |
| Start Eastern Distributor continues from Southern Cross Drive | 6 | 0 | End Eastern Distributor continues as Southern Cross Drive to Wollongong / Canberra |