Alor Setar Bypass

Federal Route 255
Sultanah Bahiyah Highway
Route information
Length	15.7 km (9.8 mi)
Major junctions
Northeast end	Alor Setar (North) Interchange
	K8 Jalan Langgar Darul Aman Highway Federal Route 7 Kuala Kedah Highway Sultan Abdul Halim Highway Federal Route 1 North–South Expressway Northern Route
Southeast end	Alor Star (South) Interchange
Location
Primary destinations	Bukit Kayu Hitam Kangar Kuala Kedah Penang Ipoh Kuala Lumpur
Highway system
Highways in Malaysia Expressways Federal State

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.

On 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.

At most sections, the Federal Route 255 was built under the JKR R5 road standard, allowing maximum speed limit of up to 90 km/h.

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Wikipedia