Bus Service 251

!	TRAVEL ADVISORY					!
	From 14 November 2024 to 31 October 2025, train services on the Bukit Panjang LRT will end an hour earlier at 10.30pm every Thursday to Sunday (except Public Holidays). This is to facilitate the upgrading of the BPLRT signalling system, as well as the testing of the new and retrofitted Light Rail Vehicles (LRVs) on the BPLRT network. Please refer here for more information. From 15 June 2025 to 30 July 2025, Train services on the Circle Line will end earlier at 11pm on Sundays, Mondays to Wednesday. This is to facilitate the integration for the CCL6. There is no bridging bus service provided. Please refer here for more information. From Sunday, 29 June 2025, with the opening of Punggol Coast Integrated Transport Hub (ITH), bus services 34, 117 & 117M will be extended to commence operations from the interchange. Please refer here for more information. From Saturday, 18 October 2025, with the realignment of Lim Chu Kang Road, bus service 405 will be amended to skip Lim Chu Kang Road. Please refer here for more information.

Service 251
Route Information
Route	Boon Lay Interchange ↺ Shipyard Road (Loop)
Route Length	13.0 km
Travelling Time	50 mins
Operator	(Jurong West Bus Package)

SMRT Buses Bus Service 251 is an industrial route linking the industrial estate of Shipyard (Boon Lay subzone) to Boon Lay station and Jurong West Town Centre. This service offers a scenic views of ExxonMobil’s Jurong refinery along Shipyard Road and Pioneer Road.

Service Information

Bus Duty & Fleet

Service 251

Depot	Fleet Size	Fleet
Soon Lee Depot (SLDEP)	8	8 Double Deckers
		SBS3059M SBS3150G SBS3629T SBS3923T SBS3941R SBS7726U SG5350U SG5606H Volvo B9TL

Notes

1 Service 251 bus will perform one (1) down-route trip as Service 251 from Pioneer Road North (Bus Stop 22181 - S’pore Post) towards Boon Lay Interchange before Sundays & Public Holidays AM Peak, departing at 0555 hours. 2 Service 251 buses will perform one (1) down-route trip as Service 251 from Pioneer Road North (Bus Stop 22181 - S’pore Post) towards Boon Lay Interchange before Weekdays & Saturdays AM Peak, departing at Weekdays: 0555 hours & 0608 hours Saturdays: 0555 hours & 0607 hours Weekdays: 3 AM - 3 PM / 2 S1 / 3 S2 (8 buses) Saturdays: 3 AM - 3 PM / 1 S2 / 1 TQ (5 buses) Sundays: 3 AM - 3 PM / 1 S2 (4 buses)

Route Information

Frequency

Period	AM Peak (First Bus - 08:30)	AM Off Peak (08:31 - 16:59)	PM Peak (17:00 - 19:00)	PM Off Peak (19:01 - Last Bus)
Loop Service	07 - 08 minutes	07 - 14 minutes	08 - 10 minutes	10 - 20 minutes

Special Departures

22181 S'pore Post Pioneer Rd Nth → 22009 Boon Lay Int Jurong West Ctrl 3 Departure Time
Weekdays	05:55 06:08
Saturdays	05:55 06:07
Sundays & Public Holidays	05:55

Loop Service

[Show/Hide Full Route Details]

Bus Stops	Point of Interest	Weekdays		Saturdays		Suns / PHs
		First bus	Last bus	First bus	Last bus	First bus	Last bus
22009 Boon Lay Int(Berth B5) Jurong West Ctrl 3	EW27 Boon Lay Jurong Point	05:45	23:25	05:45	23:25	05:45	23:25
22499 Opp Blk 662C Jurong West St 64	EW27 Boon Lay Jurong Point	05:47	23:27	05:47	23:27	05:47	23:27
22569 Opp Blk 660 CP Boon Lay Way		05:49	23:28	05:48	23:28	05:48	23:28
22559 Opp Blk 657 CP Boon Lay Way		05:50	23:29	05:49	23:29	05:49	23:29
22549 Opp Blk 655 CP Boon Lay Way		05:51	23:30	05:50	23:30	05:49	23:30
22189 Pioneer Junction Pioneer Rd Nth		05:52	23:31	05:51	23:31	05:50	23:31
22179 Secura S'pore Pioneer Rd Nth		05:54	23:32	05:53	23:32	05:51	23:32
22169 Aft Intl Rd Pioneer Rd Nth		05:55	23:33	05:54	23:33	05:53	23:34
22159 Opp Hitachi Pioneer Rd		05:58	23:35	05:57	23:35	05:55	23:36
22149 Bef Jln Buroh Pioneer Rd		05:59	23:36	05:58	23:36	05:56	23:37
23279 Bef Benoi Sector Pioneer Rd		06:01	23:38	05:59	23:37	05:57	23:38
23269 Exxon Mobil Pioneer Rd		06:03	23:40	06:01	23:38	05:59	23:39
23259 Bef Shipyard Rd Pioneer Rd		06:04	23:41	06:01	23:39	05:59	23:40
23439 Opp LP 71 Shipyard Rd		06:06	23:43	06:03	23:40	06:01	23:41
23429 Opp Mooreast Shipyard Rd		06:07	23:44	06:04	23:41	06:02	23:42
23419 Bef Shipyard Cres Shipyard Rd		06:08	23:45	06:04	23:41	06:02	23:42
23409 Mobil Marine Ter Shipyard Rd		06:09	23:46	06:05	23:42	06:03	23:43
23399 Keppel Offshore & Marine Shipyard Rd		06:11	23:47	06:07	23:43	06:05	23:44
23389 PEC Ltd Shipyard Rd		06:12	23:48	06:08	23:44	06:06	23:45
22091 Aft Jln Samulun Shipyard Rd		06:13	23:49	06:09	23:45	06:07	23:46
22401 Aft Shipyard Rd Tg Kling Rd		06:14	23:50	06:10	23:46	06:08	23:47
22391 Bef Jln Buroh Tg Kling Rd		06:15	23:51	06:11	23:57	06:08	23:49
22141 Aft Jln Buroh Pioneer Rd		06:16	23:52	06:12	23:58	06:10	23:49
22151 Hitachi Pioneer Rd		06:17	23:53	06:13	23:59	06:11	23:50
22161 Aft Lok Yang Way Pioneer Rd Nth		06:19	23:55	06:15	00:01	06:12	23:52
22171 Opp Secura S'pore Pioneer Rd Nth		06:21	23:57	06:17	00:03	06:14	23:54
22181 S'pore Post Pioneer Rd Nth		05:55	23:58	05:55	00:04	05:55	23:55
22541 Blk 655 Boon Lay Way		05:56	23:59	05:56	00:05	05:56	23:56
22551 Blk 657 Boon Lay Way		05:57	00:00	05:57	00:06	05:57	23:57
22561 Blk 660 CP Boon Lay Way		05:59	00:01	05:59	00:08	05:59	23:58
22491 Blk 662D Jurong West St 64	EW27 Boon Lay Jurong Point	06:00	00:02	06:00	00:09	06:00	23:59
22009 Boon Lay Int(Alighting) Jurong West Ctrl 3	EW27 Boon Lay Jurong Point	06:02	00:04	06:02	00:11	06:02	23:51

Notes:

• 06:00: Underlined times indicate that the first bus is a down-route rather than one starting from the first stop.

Historical Information

Operator	Route	Year	Date	Service changes
Known as prior to 1 November 2001	Jurong ↺ Refinery Rd	1978	1 June	Introduced between Jurong Int and Refinery Rd (Loop).
		1987	12 April	Serves 5 additional pairs of bus stops along Jln Ahmad Ibrahim.
	Boon Lay ↺ Refinery Rd	1990	1 July	Amended to Boon Lay Int.
	Boon Lay ↺ Benoi Rd	2001	11 February	Integrated with Service 253 and extended to loop at Benoi Rd, skipping Refinery Rd.
		2005	TBC	Amended to ply Jln Buroh and Tg Kling Rd, skipping Liu Fang Rd.
		2006	TBC	Serves new pair of bus stops before and after Jln Buroh along Tg Kling Rd.
			18 June	Amended to Boon Lay Temp Int.
			15 November	Serves new pair of bus stops before and after Jln Buroh along Pioneer Rd.
		2009	27 December	Amended to Boon Lay Integrated Transport Hub.
	Boon Lay ↺ Shipyard Rd	2015	12 December	Shortened to loop at Shipyard Rd and amended to ply Jurong West St 64, Boon Lay Way and Pioneer Rd Nth, skipping Jln Ahmad Ibrahim and Benoi Rd.
		2016	25 January	Designated wheelchair-accessible bus service (WAB).
(Current)		2024	1 September	Operations transferred to SMRT Buses.

External Links

• SMRT Journeys
• SimplyGo eGuide
• Bus Service Route Map