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{{Short description|Underground station of the Chennai Metro}}
{{morefootnotes|date=December 2022}}
{{Use dmy dates|date=December 2022}}
{{Use Indian English|date=December 2022}}
{{Infobox station
| name = [[File:Chennai Metro logo.svg|50px]] Thirumayilai
| native_name =
| native_name_lang =
| symbol_location =
| symbol =
| type = {{Chennai Metro Infobox station line|line = 3|line2 = 4}}
| style = Chennai Metro
| image =
| alt =
| caption =
| address = Mylapore, Chennai, Tamil Nadu 600004
| borough =
| country = India
| coordinates = {{coord|13.0368|80.2676|display=inline,title}}
| owned = [[Chennai Metro]]
| operator = Chennai Metro Rail Limited (CMRL)
| line = {{rcb|Chennai Metro|Purple|croute}} {{rcb|Chennai Metro|Yellow|croute}}
| distance =
| platforms = 2 levels with [[Side platform]] each and 1 level with [[Island platform]] 
Platform-1 → [[Madhavaram Milk Colony|Madhavaram Milk Colony]] Platform-2 → [[Poonamallee Bypass metro station|Poonamallee Bypass]] Platform-3 → [[Lighthouse metro station|Lighthouse]] Platform-4 → [[SIPCOT II metro station|SIPCOT II]]
| tracks = 4
| train_operators =
| connections = [[File:Indian Railways Suburban Railway Logo.svg|20px|up|link=Chennai MRTS]] {{stnlnk|Thirumayilai}}
| structure = Underground, [[Double-track railway|Double Track]]
| parking =
| bicycle =
| accessible = Yes {{access icon}}
| code =
| zone =
| electrified = Yes
| opened = 
| closed = 
| passengers =
| pass_year =
| pass_rank =
| services = {{adjacent stations|system=Chennai Metro|line1=Purple|left1=Radhakrishnan Road Junction|right1=Mandaiveli|line2=Yellow|left2=Alwarpet|to-left2=Poonamallee Bypass|note-mid2=''(Under Construction)''|right2=Kutchery Road|to-right2=Lighthouse|line3=Yellow|left3=Alwarpet|to-left3=Parandur Airport|note-mid3=''(Future Service)''|right3=Kutchery Road|to-right3=}}
| map_type =
| map_size =
| map_dot_label =
| route_map = {{Chennai Metro Orange Line Route}}
| map_state = collapsed
| mapframe = yes
| mapframe-marker = rail
| mapframe-marker-color = #{{rail color|Chennai Metro|purple}}
| mapframe-zoom = 14
| website = {{url|chennaimetrorail.org}}
}}

'''Thirumayilai metro station''' is a [[Rapid transit|Metro]] railway station on the [[Line 4 (Chennai Metro)|Yellow Line]] of the [[Chennai Metro]]. The station is among the underground stations along corridor I of the Chennai Metro, [[Lighthouse metro station|Lighthouse]]–[[Poonamallee Bypass metro station|Poonamallee Bypass]] stretch. The station serves the neighbourhoods of [[Mylapore]].

The station is a key interchange linking [[Line 3 (Chennai Metro)|Corridor 3]] and [[Line 4 (Chennai Metro)|Corridor 4]] of the Chennai Metro network and, at 115 ft below the ground, will be the deepest metro station in Chennai.

==History==
Construction began in 2021 and the station remained an engineering challenge during its construction owing to its depth cut through rocky soil. Owing to these difficulties, the station is expected to be completed by 2027.<ref name="TOI_By2028">{{cite news
| last = Tejonmayam
| first = U
| title = Chennai's Mylapore, T Nagar to get metro only by 2028
| newspaper = The Times of India
| location = Chennai
| pages =
| language =
| publisher = The Times Group
| date = 10 June 2023
| url = https://timesofindia.indiatimes.com/city/chennai/mylapore-t-nagar-to-get-metro-only-by-2028/articleshow/100888929.cms
| access-date = 26 June 2023}}</ref>

===Construction===
The T-shaped station will be built on four levels with four tunnels stacked one above the other, below the Luz Junction (junction connecting Luz and the Canal Bank Road) in the neighbourhood of Mylapore.<ref name="TOI_By2028"/> Upon construction, the station will be the deepest metro station in Chennai, at 35 meters below street level, surpassing the [[Chennai Central metro station]], which is 30 meters below street level.<ref name="TOI_By2028"/> This is because the rails in corridor 3 run as stacked tunnels, with one track located 17 metres below the ground (first level, or platform 1) and another 35 metres below (third level, or platform 3). The tracks in corridor 4 will be in parallel tunnels (second level, or platform 2) built between platforms 1 and 3.<ref name="TH_115Feet">{{cite news
| last = Sekar
| first = Sunitha
| title = At 115 feet below the ground, Thirumayilai Metro station will be the last to be opened in 2028
| newspaper = The Hindu
| location = Chennai
| pages =
| language =
| publisher = Kasturi & Sons
| date = 9 June 2023
| url = https://www.thehindu.com/news/cities/chennai/at-115-feet-below-the-ground-thirumayilai-metro-station-will-be-the-last-to-be-opened-in-2028/article66950781.ece/
| access-date = 26 June 2023}}</ref>

===Station layout===
{{stack|{{Routemap
| title = Tirumayilai track layout ''(TBC)''
| title-bg = #{{rail color|Chennai Metro|Purple}};background-image: linear-gradient(to right, #{{rcr|Chennai Metro|Purple}}, #{{rcr|Chennai Metro|Purple}}, #{{rcr|Chennai Metro|Yellow}}, #{{rcr|Chennai Metro|Yellow}});
| title-color=white
| legend = track
| collapsible = no
| map= CONTg\STRf yellow\CONTg yellow\STRf
PSTR(L)\PSTR(R) yellow\PSTR(L) yellow\PSTR(R) ~~ ~~ ~~ ''{{BSsplit|{{font color|#800080|P1 Towards {{rmri|up}} {{stl|Chennai Metro|Radhakrishnan Road Junction}}}}|{{font color|#c49102|P# Towards {{rmri|down}} {{stl|Chennai Metro|Alwarpet}}}}}}'' **
PSTR(L)\PSTR(R) yellow\PSTR(L) yellow\PSTR(R)
PSTR(L)\PSTR(R) yellow\PSTR(L) yellow\PSTR(R) ~~ ~~ ~~ ''{{BSsplit|{{font color|#c49102|P# Towards {{rmri|up}} {{stl|Chennai Metro|Kutchery Road}}}}|{{font color|#800080|P4 Towards {{rmri|down}} {{stl|Chennai Metro|Mandaveli}}}}}}'' **
STRg\CONTf yellow\STRg yellow\CONTf
| bottom = <div style="width:28em;text-align:center">''{{font color|#800080|P1 - Station B2 floor with a track and side platform}} {{font color|#c49102|P# - Station B3 floor with two tracks and one Island platform}} {{font color|#800080|P4 - Station B4 floor with a track and side platform}}'' '''''{{font color|#800080|P1 & P4 - [[Purple Line (Chennai Metro)|Purple Line]]}} <nowiki>|</nowiki> {{font color|#c49102|P# and P# - [[Yellow Line (Chennai Metro)|Yellow Line]]}}''''' ** '''Under Construction'''</div>
}}
}}
{| border=0 cellspacing=0 cellpadding=3
|style="border-bottom:solid 1px gray;border-top:solid 1px gray;" width=30 valign=top|'''G'''
|style="border-top:solid 1px gray;border-bottom:solid 1px gray;" width=85 valign=top|Street level
|style="border-top:solid 1px gray;border-bottom:solid 1px gray;" width=500 valign=top|Exit/Entrance
|-
|valign=top|'''B1'''
|valign=top|Mezzanine
|valign=top|Fare control, station agent, Metro Card vending machines, crossover 
|-
| rowspan="2" valign="top" style="border-top:solid 1px gray;border-bottom:solid 1px gray;" width="30" |'''B2'''
|style="border-top:solid 1px gray;border-right:solid 2px black;border-left:solid 2px black;border-bottom:solid 2px black;text-align:center;" colspan=2|[[Side platform]] | Doors will open on the left {{access icon}}
|-
|style="border-bottom:solid 1px gray;" width=85|'''Platform 1''' '''Northbound'''
|style="border-bottom:solid 1px gray;" width=500|Towards → {{stl|Chennai Metro|Madhavaram Milk Colony}} '''Next Station:''' [[Radhakrishnan Road Junction metro station|Radhakrishnan Road Junction]]
|-
| rowspan="3" valign="top" style="border-top:solid 1px white;border-bottom:solid 1px gray;" width="35" |'''B3'''
|'''Platform #''' '''Westbound'''
|Towards ← {{stl|Chennai Metro|Poonamallee Bypass}} ** '''Next Station:''' {{stl|Chennai Metro|Alwarpet}}
|-
| colspan="2" style="border-top:solid 2px black;border-right:solid 2px black;border-left:solid 2px black;border-bottom:solid 2px black;text-align:center;" |[[Island platform]] | '''P# & P#''' doors will open on the left {{access icon}}
|-
|style="border-bottom:solid 1px gray;" width=85|'''Platform #''' '''Eastbound'''
|style="border-bottom:solid 1px gray;" width=500|Towards → {{stl|Chennai Metro|Lighthouse}} '''Next Station:''' {{stl|Chennai Metro|Kutchery Road}}
|-
| rowspan="2" valign="top" style="border-top:solid 1px white;border-bottom:solid 1px gray;" width="35" |'''B4'''
|'''Platform 4''' '''Southbound'''
|Towards ← {{stl|Chennai Metro|SIPCOT 2}} '''Next Station:''' {{stl|Chennai Metro|Mandaveli}}
|-
| colspan="2" style="border-top:solid 2px black;border-right:solid 2px black;border-left:solid 2px black;border-bottom:solid 1px gray;text-align:center;" |[[Side platform]] | Doors will open on the left {{access icon}}
|-
| style="border-bottom:solid 1px gray;" width="30" valign="top" |'''B4'''
| style="border-bottom:solid 1px gray;" width="85" valign="top" |'''''Note:'''''
| style="border-bottom:solid 1px gray;" width="500" |'''''** (Further extension to {{stl|Chennai Metro|Parandur Airport}} in the future)'''''
|-
|-
|}

==The station==
The station will be located at a depth of {{convert|35|m}} below the ground with four levels, namely, a concourse level and three platform levels.<ref name="TH_DeepStation">{{cite news| first = Sunitha | last = Sekar | title = At Thirumayilai, Chennai Metro to build deep station with three platforms | newspaper = The Hindu | location = Chennai| date = 22 May 2022| url = https://www.thehindu.com/news/cities/chennai/at-thirumayilai-chennai-metro-to-build-the-deepest-station-with-three-platforms/article65446828.ece | accessdate = 10 June 2022}}</ref> The first (uppermost) level will be at a depth of {{convert|17|m}} consisting of the Madhavaram–SIPCOT upper track. The middle level will be at a depth of {{convert|24|m}} and will consist of the Lighthouse–Poonamallee dual lines. The third (lowermost) level will be at a depth of {{convert|35|m}} consisting of the Madhavaram–SIPCOT lower track.<ref name="TH_DeepStation"/> The station will be spread over an area of 4854.4 square meters. While most other stations in phase II has only two entry/exit points, the Thirumayilai station alone will have five entry/exit points.<ref name="TH_115Feet"/>

==See also==
{{Portal|India|Trains|Transport|Engineering}}
* [[List of Chennai metro stations]]
* [[Railway stations in Chennai]]
* [[Chennai Mass Rapid Transit System]]
* [[Chennai Monorail]]
* [[Chennai Suburban Railway]]
* [[Transport in Chennai]]

==References==
{{Reflist}}

==External links==
{{Commons|Chennai Metro}}
{{Wikivoyage|Chennai}}
* {{Official website|http://chennaimetrorail.org/}}
* [http://www.urbanrail.net ''UrbanRail.Net''] – descriptions of all metro systems in the world, each with a schematic map showing all stations.

{{Chennai topics}}
{{Chennai Metro}}
{{Transport in Chennai}}

[[Category:Chennai Metro stations]]
[[Category:Railway stations in Chennai]]

Thirumayilai metro station - Revision history

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