| Country: | MYS |
| Type: | Federal |
| Route: | 257 |
| Alternate Name: | Jalan Lencongan Barat |
| Length Km: | 12.00 |
| Beltway City: | Sungai Petani |
| Direction A: | North |
| Terminus A: | Sungai Petani North Jalan Badlishah |
| Junction: | Federal Route 1 |
| Direction B: | South |
| Terminus B: | Bakar Arang |
| Destinations: | Sungai Layar |
Jalan Lencongan Barat or Sungai Petani Western Bypass, Federal Route 257, is a major highway bypass in Sungai Petani, Kedah, Malaysia.[1] The Kilometre Zero of the Federal Route 257 is located at Sungai Petani South.
In 2013, the highway was gazetted as Federal Route 257.
At most sections, the Federal Route 257 was built under the JKR R5 road standard, allowing maximum speed limit of up to 90 km/h.
| Km | Exit | Junctions | To | Remarks | |
|---|---|---|---|---|---|
| Sungai Petani (South)-NSE Interchange | North–South Expressway Northern Route North Alor Star Pendang Gurun South Kuala Lumpur Penang Bertam | Closed tolled trumpet expressway interchange | |||
| Sungai Petani (South) toll plaza SPS PLUSTransit]] MyRFID RM (Cash) Closed toll system Collect PLUSTransit cards and pay a distance toll | |||||
| Sungai Petani (South) Toll Plaza | |||||
| North–South Expressway Northern Route Start/End of expressway PLUS Expressways border limit | |||||
| Jalan Lencongan Barat Start/End of highway JKR border limit | |||||
| Bakar Arang Junctions | South Jalan Permatang Gedong Taman Bakar Arang | Junctions | |||
0 | Sungai Petani South Junctions | North Sungai Petani town centre South Butterworth Kepala Batas Bandar Amanjaya Kuala Ketil Baling | Junctions | ||
| Jalan Batu Lintang Junctions | Jalan Batu Lintang West Pengkalan Batu Lintang Pengkalan Bukit Kecil East Sungai Petani town centre | Junctions | |||
| Taman Delima Junctions | East Lebuh Delima Taman Delima | Junctions | |||
| Sungai Petani bridge | |||||
| Jalan Penghulu Him Junctions | Jalan Penghulu Him West Sungai Layar East Sungai Petani town centre | Junctions | |||
| Sungai Layar Junctions | Jalan Sungai Layar West Sungai Layar East Sungai Petani town centre | Junctions | |||
| Jalan Raya Semeling Junctions | Jalan Raya Semeling North Semeling Merbok Lembah Bujang Southeast Sungai Petani town centre | Junctions | |||
| Lebuh Laguna Merbuk 1 Junctions | North Lebuh Laguna Merbuk 1 Bandar Laguna Merbok | Junctions | |||
| Lebuh Laguna Merbuk 5 Junctions | North Lebuh Laguna Merbuk 5 Bandar Laguna Merbok | Junctions | |||
| Railway crossing bridge | |||||
| Sungai Petani North Junctions | North Alor Star Gurun Guar Cempedak Gunung Jerai South Sungai Petani town centre Bandar Amanjaya Kuala Ketil Baling | Junctions | |||
| Jalan Lencongan Barat Start/End of highway JKR border limit | |||||
| North–South Expressway Northern Route Start/End of expressway PLUS Expressways border limit | |||||
| Sungai Petani (North) Toll Plaza | |||||
| Sungai Petani (North) toll plaza SPU RM (Cash)]] MyRFID PLUSTransit Closed toll system Collect PLUSTransit cards and pay a distance toll | |||||
| Sungai Petani (North)-NSE Interchange | North–South Expressway Northern Route North Alor Star Pendang Gurun South Kuala Lumpur Penang Bertam | Closed tolled trumpet expressway interchange | |||