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Line S5 (Chengdu Metro), also known asChengdu-Meishan Line and shortened asChengmei Line orMeishan Line, is ametro line inChengdu,China. The line starts fromHonglian Station,Line 19 ,Tianfu New Area,Chengdu, and ends atMeishan East Railway Station (Metro & National Railway),Dongpo,Meishan. The line is 59 km long, has 5 underground stations and 8 elevated/ground stations. Construction started on Sep 26, 2022, and is expected to open in Dec 2026.

• Line 1 Phase 3'sWestern China International Expo City station released a transit hub design, announcing Line S5's future station would be transferring to the Expo City station withLine 1,Line 6, andLine 18.^[1] Line S5 was to be located on the LG2 floor.^[2]

• Western China International Expo City station had completed the Line S5's platform and structural construction with all 4 lines in the station.^[3] However, it was later announced Line S5 would not to go toWestern China International Expo City station, and would instead pass throughLine 6'sQinhuangsi Station, andLine 19'sHonglian Station.

• August 4:Chengdu andMeishan signed the "Chengmei Municipal Railway Line S5 Co-construction and Co-management Cooperation Agreement," detailing that Line S5 would have a branch line and a main line. The main line would be 50.4 km long (with the Chengdu section being 19.4 km and the Meishan section 31 km), costing 15.6 billion yuan, and the branch line would be 32.8 km, costing 9.7 billion yuan. The whole line was planned to be 83.2 km long and cost 25.3 billion yuan.^[4][5]

• September 26:Sichuan Chengmei Rail Transit Co., Ltd, the operating company of Line S5, was officially established. The company's shares are jointly held byMeishan State-owned Capital Invenstment and Operation Group Co. Ltd., andChengdu Metro, which hold 54.8% and 45.2% of shares respectively.^[6][7]
• December 12: ByNDRC's publication,^[8]《Chengdu-Chongqing Multi-layer Transit Plan》had been delivered to Chengdu and Chongqing, showing that the line starts atHonglian Station,Line 19 ,Tianfu New Area, Chengdu, and ends atMeishan East Railway Station (Metro & National Railway),Dongpo,Meishan. It also showed the line would pass throughScience City,Legoland Sichuan,Black Dragon Pool, andMindong New Area.^[9]
• December 29:Chengdu Metro published Chengdu-Meishan Line Field Assessment Bidding.^[10] The Assessment shows the line is 58 km long (Chengdu: 19.22 km, Meishan: 8.78 km), underground: 8.65 km, elevated: 43.49 km, ground level: 5.86 km. It also details the line's 12 stations, with Jiancha Depot and Meishanbei Depot, and 2 power centres.^[11]

• August 26: Line S5 started project bidding.^[12]
• September 26: Line S5 conducted a construction initiation ceremony atQinghuangshi andShigao Station.^[13][14]
• September 26: Line S5's bidding result is announced, withChina Electric Power Construction Co., Ltd. as the winner.^[15]
• October 15: Fencing was finished for Shigao station, marking the start of the station's construction.^[16]
• November 18: Line S5'sMin River Mega Bridge started construction.

• July 7: Station names were posted for theChengdu section, and the public was invited to give suggestions.^[17]
• August 15: Station names for theChengdu section were officially announced.^[18]

Line S5 will use4-car Type-A trains, with a standard capacity of 756 passengers. The power system uses 1,500 V DC via overhead lines. The trains operate at 160 km/h max. There are 23 trains and 92 cars.^{[citation needed]}

Line S5 Station Details
Express Services	Chinese names	English names	Opening time	Distance between stations （km）	Distance Accumulated （km）	Station Types		Transfer	Borough
						Station	Platform
●	红莲	Red Lotus	2026	-	0	Underground	Side platform	19	Chengdu Shuangliu
●	秦皇寺	Qinhuangsi		0.924	0.924			6
｜	官塘	Guantang
｜	煎茶	Sencha				Elevated	Double island
●	红碑	Hongbei					Side platform
｜	视高	Shigao		8.917					Meishan Renshou
｜	南天府公园	South Tianfu Park					Double island
｜	乐高	Legoland					Side platform
｜	黑龙滩	Heilongtan					Double island
｜	岷东新区	Mindong New Area					Side platform		Meishan Dongpo
●	眉山北站	Meishan North Railway Station
●	音乐广场	Music Plaza				Underground	Island
●	眉山东站	Meishan East Railway Station						Chengdu-Guizhou Passenger Dedicated Line

• Chengdu Metro lines
• Transport infrastructure under construction in China

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