# Sultanah Bahiyah Highway

The Sultanah Bahiyah Highway (Malay: Lebuhraya Sultanah Bahiyah), Federal Route 255 (formerly Alor Setar Bypass and Jalan Sultanah, both Kedah State Route K139) is a major highway bypass in Alor Star, Kedah, Malaysia. It was named after the late Sultanah Bahiyah, a first consort of Sultan Abdul Halim of Kedah. The Kilometre Zero is located at Alor Setar North.

## History

In November 2003, after a first consort of Sultan Abdul Halim of Kedah, Sultanah Bahiyah, died on 26 August 2003, the Kedah state government renamed the highway Sultanah Bahiyah Highway in her honour.
In 2013, the highway was gazetted as Federal Route 255.

## Features

At most sections, the Federal Route 255 was built under the JKR R5 road standard, with a speed limit of 90 km/h.

## List of junctions

| Km | Exit | Junctions | To | Remarks |
| FT 255 0 | 25501 178 | Alor Star (North)-NSE Interchange | North–South Expressway Northern Route AH2 North–South Expressway Northern Route North AH2 Hat Yai (Thailand) North–South Expressway Northern Route FT 1 AH2 Bukit Kayu Hitam North–South Expressway Northern Route FT 1 AH2 Jitra South North–South Expressway Northern Route AH2 Kuala Lumpur Penang Bridge Penang | Closed tolled trumpet expressway interchange |
| Alor Star (North) toll plaza ASU PLUSTransit Touch 'n Go SmartTAG MyRFIDSmartTAG Touch 'n Go RM (Cash) Closed toll system Collect PLUSTransit cards and pay a distance toll |||||
| 1.3 | | Alor Setar (North) Toll Plaza | TnG TAG Customer Service Centre | |
| 1.4 | | PLUS PLUS Expressways section maintenances office PROPEL PROPEL section maintenances office | PLUS PLUS Expressways section maintenances office PROPEL PROPEL section maintenances office | Service t-junctions |
| North–South Expressway Northern Route AH2 North–South Expressway Northern Route Start/end of expressway PLUS Expressways border limit |||||
| FT 255 Sultanah Bahiyah Highway JKR border limit |||||
| 1.6 | 25502 | Jalan Langgar Junctions | K8 Jalan Langgar North FT 175 Langgar FT 175 Pokok Sena FT 1 Jitra FT 175 Kepala Batas FT 175 Sultan Abdul Halim Airport South FT 1 Kota Sarang Semut FT 1 Gurun FT 1 Sungai Petani | Junctions |
| 4.1 | 25506 | Darul Aman Highway Junctions | FT 1 Darul Aman Highway North FT 1 Anak Bukit FT 1 Kepala Batas FT 1 Jitra FT 1 Sultan Abdul Halim Airport South FT 1 City Centre | T-junctions |
| | | Sungai Anak Bukit bridge | | |
| | | Kampung Pumpong | | |
| | 25507 | Jalan Gangsa Junctions | K137 Jalan Gangsa | Junctions |
| | | Taman Wira Mergong | | |
| | | Taman Shahab | | |
| | | Taman Senangin | | |
| | | Taman Mergong Indah | | |
| FT 255 7 | 25512 | Alor Setar Utara Junctions | Northwest FT 7 Kangar FT 7 Kuala Perlis FT 7 Padang Besar Southeast FT 7 City Centre | Junctions |
| | | Sungai Kedah bridge | | |
| FT 255 12 | 25517 | Kuala Kedah Highway | FT 78 Kuala Kedah Highway West FT 78 Kuala Kedah FT 78 Kuala Kedah jetty ( Ferry to Langkawi Island) East FT 78 City Centre | Junctions |
| | | Desa Seraya | | |
| | | Wan Mat Saman Aqueduct Bridge | | |
| FT 255 14 | 25519 | Alor Setar Selatan Junctions | North FT 1 Sultan Abdul Halim Highway City Centre South FT 1 Sungai Petani FT 1 Gurun FT 1 Kota Sarang Semut | Junctions |
| 14.6 | | Tesco Hypermarket Alor Setar | | |
| FT 255 Sultanah Bahiyah Highway JKR border limit |||||
| Alor Star Welcome Arch |||||
| North–South Expressway Northern Route AH2 North–South Expressway Northern Route Start/end of expressway PLUS Expressways border limit |||||
| 15.3 | | Alor Star (South) toll plaza | |
| Alor Star (South) toll plaza ASS RM (Cash) RM (Cash) Touch 'n Go SmartTAG MyRFID Touch 'n Go PLUSTransit PLUSTransit Closed toll system Collect PLUSTransit cards and pay a distance toll |||||
| 15.6 | | Railway crossing bridge | | |
| FT 255 15.7 | 25521 177 | Alor Star (South)-NSE Interchange | North–South Expressway Northern Route AH2 North–South Expressway Northern Route North AH2 Hat Yai (Thailand) North–South Expressway Northern Route FT 1 AH2 Bukit Kayu Hitam North–South Expressway Northern Route FT 1 AH2 Jitra South North–South Expressway Northern Route AH2 Kuala Lumpur Penang Bridge Penang North–South Expressway Northern Route AH2 Pendang | Closed tolled trumpet expressway interchange |