| Country: | HKG |
| Type: | route |
| Route: | 3 |
| Map: | HK_Route3_map_coloured.svg |
| Map Notes: | Alignment and exits of Route 3 (zoom in to view exit details) |
| Length Km: | 27.2 |
| Established: | 1998 |
| Direction A: | South |
| Terminus A: | Connaught Road West, Sai Ying Pun |
| Junction: | Tsing Sha Highway, Cheung Sha Wan Ching Cheung Road, Kwai Chung Tsuen Wan Road, Kwai Chung Lantau Link, Tsing Yi Tuen Mun Road, Ting Kau |
| Direction B: | North |
| Terminus B: | in Yuen Long |
| Districts: | Central and Western, Yau Tsim Mong, Sham Shui Po, Kwai Tsing, Tsuen Wan, Yuen Long |
| Previous Type: | route |
| Previous Route: | 2 |
| Next Type: | route |
| Next Route: | 4 |
Route 3 is a series of expressways in Hong Kong that runs from Sai Ying Pun on Hong Kong Island to Yuen Long in the New Territories, linking West Kowloon, Kwai Chung and Tsing Yi. It was built as part of the Airport Core Programme to provide access to Hong Kong International Airport from the city, and to relieve congestion in the New Territories. The Western Harbour Crossing and Tai Lam Tunnel that form part of the route are tollways.
The route originates at the junction with Route 4 at Connaught Road in Sai Ying Pun, and immediately crosses the Victoria Harbour through the tolled Western Harbour Crossing. From then on it heads northwest on a viaduct along the West Kowloon Highway, above the Tung Chung line and Airport Express tracks. This section has three exits that connects with Route 8, Route 7 and Route 5 respectively. It then enters the Tsing Kwai Highway in Lai Chi Kok and continues west to Tsing Yi Island on Rambler Channel Bridge. Once it reaches the island, the Cheung Tsing Tunnel immediately follows. At the other end of the tunnel, Route 3 enters the Tsing Yi Northwestern Interchange and meet with Route 8 again. The interchange is a gateway to Lantau Island and Chek Lap Kok Airport. Route 3 then makes a sharp turn and travels north on Ting Kau Bridge and quickly enters the tolled Tai Lam Tunnel. From there, the remainder of the route is dubbed the Country Park Section[1] which runs all the way to Kam Tin along the Tsing Long Highway, and joins Route 9 near Pok Oi Hospital.[2]
The route is made up of the following roads:
| Central and Western | Sai Ying Pun | Western Harbour Crossing | 0.0 | 0.0 | 1A | Connaught Road West (eastbound) – Sai Ying Pun, Sheung Wan and Central | Joins |
| 1B | Connaught Road West (westbound) – Shek Tong Tsui and Kennedy Town | ||||||
| Victoria Harbour | 0.2 - 2.2 | 0.1 - 1.4 | Western Harbour Tunnel (tolled) | ||||
| Yau Tsim Mong | West Kowloon | 2.4 | 1.5 | - | Jordan Road | Unnumbered northbound exit only | |
| Yau Ma Tei | 3.0 | 1.9 | 2 | Lai Cheung Road – Mong Kok, Tai Kok Tsui, Sha Tin, High Speed Railway Station, Airport Express Station, Tsim Sha Tsui and Yau Ma Tei | |||
| Sham Shui Po | Lai Wan | 6.2 | 3.9 | 3 | Tsing Sha Highway (Lai Wan Interchange) – Tsing Yi, Lantau, Lai Chi Kok and Cheung Sha Wan | ||
| Mei Foo | 7.7 | 4.8 | 4 | Mei Ching Road (Mei Foo Interchange) – Container Terminals 1-8, Lai King and Sha Tin | |||
| 8.3 | 5.2 | 4A | Ching Cheung Road – Sha Tin and Kwun Tong | Southbound exit and northbound entrance only | |||
| Kwai Tsing | Lai King | 9.3 | 5.8 | 4B | Tsuen Wan Road – Kwai Chung, Tsing Yi (North), Airport Express Station and Tsuen Wan | Northbound exit and southbound entrance only | |
| Kwai Chung | 10.0 | 6.2 | 4C | Kwai Tsing Road – Tsing Yi (South) | |||
| Rambler Channel | 11.0 - 11.4 | 6.8 - 7.1 | Cheung Tsing Bridge | ||||
| Tsing Yi | 11.4 - 13.0 | 7.1 - 8.1 | |||||
| 14.0 | 8.7 | 4D | Tsing Sha Highway – Container Terminals 8-9, Kowloon (West), Sha Tin | Southbound exit and northbound entrance only | |||
| 14.1 | 8.8 | 4E | Tsing Yi Road West – Tsing Yi, Tsuen Wan and Airport Express Station | ||||
| North West Tsing Yi Interchange | 14.7 | 9.1 | 5 | ||||
| 14.7 | 9.1 | 5A | View Point and Administration Building | Southbound exit only, northbound exit and entrance. Exit for Tsing Yi North Coastal Road. | |||
| 15.2 - 16.5 | 9.4 - 10.3 | Ting Kau Bridge | |||||
| Tsuen Wan | Ting Kau | 16.8 | 10.4 | 6 | Tuen Mun Road – Sham Tseng, Tuen Mun and Tsuen Wan | Northbound interchange clockwise, southbound interchange anticlockwise only | |
| Tai Lam | 17.7 - 21.5 | 11.0 - 13.4 | Tai Lam Tunnel (tolled) | ||||
| Yuen Long | Pat Heung | 23.0 | 14.3 | 6A | Pat Heung Road – Pat Heung | Northbound exit and southbound entrance only | |
| Kam Tin | 25.0 | 15.5 | 6B | Kam Tin Road – Kam Tin and Au Tau | |||
| Au Tau | Au Tau Interchange | 27.2 | 16.9 | Yuen Long Highway (anticlockwise)/San Tin Highway (clockwise) – Yuen Long, Tin Shui Wai, Wetland Park, Shenzhen Bay, Lok Ma Chau and Sheung Shui | Joins | ||