Chennai Egmore–Thanjavur main line

Chennai Egmore–Thanjavur main line
Overview
Status	Operational
Locale	Tamil Nadu
Termini	Chennai Egmore Thanjavur Junction
Operation
Opened	1880 (1880)
Owner	Indian Railway
Operator(s)	Southern Railway Zone
Technical
Track length	Main line: 350 km (217 mi) Branch lines Chengalpattu-Arakkonam 58 km (36 mi) Viluppuram-Puducherry 38 km (24 mi) Cuddalore Port-Vriddhachalam 58 km (36 mi) and Mayiladuthurai-Thiruvarur 31 km (19 mi)
Track gauge	1,676 mm (5 ft 6 in) broad gauge
Old gauge	Metre Gauge
Highest elevation	Chennai Egmore 8 metres (26 ft) Thanjavur 60 metres (200 ft)

Chennai Egmore–Thanjavur line
km km to Guntakal-Chennai Egmore section 0 Chennai Egmore 2 Chetput Cooum River 4 Nungambakkam 5 Kodambakkam 7 Mambalam 8 Saidapet Adyar River State Highway 48 11 Guindy 13 St. Thomas Mount 14 Pazhavanthangal 16 Meenambakkam / Chennai Airport 17 Tirusulam 19 Pallavaram 21 Chrompet 23 Tambaram Sanatorium 25 Tambaram NH 45 28 Perungalathur 30 Vandalur 33 Urapakkam 36 Guduvancheri 39 Potheri 41 Kattangulathur 43 Maraimalai Nagar Ford factory 47 Singaperumal Koil 52 Paranur 63 Arakkonam Junction / Chennai-Bangalore line Arakkonam Naval Air Station Kollar River 56 Takkolam 49 Tirumalpur 36 Kanchipuram 35 Kanchipuram East 29 Nathapettai State Highway 48 22 Walajabad 15 Pazhava Seevaram 12 Palur 10 Villiyambakkam 8 Radipalayam 56 / 0 Chengalpattu Junction Palar River 59 Tirumani 64 Otivakkam 69 Padalam 76 Karunghuzi 80 Madurantakam 87 Pakkam 91 Melmaruvathur 94 Acharapakkam 100 Tozhuppedu NH 45 105 Karasangal 110 Olakur 114 Panchalam 121 Tindivanam NH 66 131 Mailam 136 Nedi Mollyanurx Thondi River Sankara Parani River 139 Perani 147 Vikravandi 152 Mundiyampakkam NH 45 To Katpadi Junction 158 / 0 Viluppuram Junction NH 45A 10 Valavanur NH 45A 22 Chinna Babu Samudram 30 Villanur State Highway 49 38 Puducherry 166 Serndanur Thenpennai River 172 Thiruthuraiyur NH 45C 178 Panruti State Highway 9 186 Melpattambakkam 191 Nellikuppan 196 Varakalpattu 201 Thirupadiripuliyur State Highway 68 205 / 0 Cuddalore Port Junction 14 Kullanchavadi 25 Kurinjipadi NH 45C 30 Vadalur 38 Neyveli Neyveli lignite mines 45 Uttangal Mangalam to Chord Line, Tamil Nadu to Salem Junction State Highway 69 58 Virudhachalam Junction Vellar River to Chord Line, Tamil Nadu 209 Capper Quarry NH 45A 217 Alapakkam Alapakkam Oil Refinery 225 Puduchattiram 232 Parangipettai Porto Novo Vellar River 238 Killai 243 Chidambaram 248 Vellampadugai Kollidam River 250 Kollidam 257 Arasur 261 Sirkazhi 266 Vaithisyaran Koil State Highway 150 274 Anandatandyapuram 276 Nidur Kaveri 280 Mayiladuthurai Junction 288 Manganallur State Highway 23 296 Peralam Junction 299 Panthottam 304Nannilam State Highway 67 319Thiruvarur Junction to Tiruchirappalli Junction Kumbakonam-Karaikal Road Karaikal Nagore Nagapattinam Junction to Tiruchirappalli Junction 284 Malliyam 288 Kutralam 295 Narasingampet State Highway 22 300 Aduthurai 303 Tiruvidaimaruthur 306 Tirunagesvaram State Highway 66 311 Kumbakonam 315 Darasuram 318 Swamimalai 320 Sundaraperumal Kovil Kudamuruti River 324 Papanasam 327 Pandaravadai 333 Ayyampet 335 Pasupatikovil Vettar River 341 Titte 350 Thanjavur Junction Tiruchirappalli-Nagapattinam line

The Chennai Egmore–Thanjavur main line connects Chennai Egmore and Thanjavur Junction both in the Indian state of Tamil Nadu. The Chennai Egmore – Thanjavur main line is part of Chennai - Viluppuram - Thanjavur - Tiruchirappalli line. There are several branch lines (included here): Chengalpattu - Arakkonam (links to Chennai Central-Bengaluru City line, Guntakal-Chennai Egmore section), Viluppuram - Puducherry, Cuddalore - Virudhachalam, Mayiladuthurai - Thiruvarur, and Peralam - Nagapattinam sectors. The line connects the Kaveri delta to Chennai.

History

The "main line" of the metre gauge railway system in the Coromandel coast connected Chennai with Tiruchchirappalli via Viluppuram, Cuddalore, Mayiladuthurai (Mayavaram) and Thanjavur junctions. The Chennai - Thanjavur - Tiruchirappalli line continues to be thought of as the "main line".

In 1861 the Great Southern Railway of India built the 125 km (78 mi) long 1,676 mm (5 ft 6 in) wide broad gauge line between Nagapattinam and Tiruchirapalli (then known as Trichinopoly) and the line was opened to traffic next year. It was a new development south of Chennai. After taking over of GSIR by South Indian Railway Company in 1874, the Nagapattinam - Tiruchirapalli line was converted to 1,000 mm (3 ft 3 ³⁄₈ in) wide metre gauge in 1875.

The South India Railway Company laid a 715 km (444 mi) long metre gauge trunk line from Chennai to Thoothukudi via Kumbakonam and Thanjavur in 1880. The 82.67 km (51 mi) long Tindivanam-Cuddalore Port (then known as Cuddalore Junction) sector, 27.60 km (17 mi) long Cuddalore Port-Porto Novo sector, 19.71 km (12 mi) long Shyali-Mayiladuturai sector and 70.42 km (44 mi) long Mayiladuturai-Thanjavur setor were opened in 1877, thereby connecting Tindivaram to the already opened Tiruchirappalli-Nagapattinam line.

Following an agreement between the British and the French, a metre gauge line was laid between Puducherry and Viluppuram around 1877-1879.

A 1,067 mm (3 ft 6 in) wide line was laid between Arakkonam and Kanchipuram (then known as Conjeevaram) in 1865 by Indian Tramway Company. The line was converted to metre gauge in 1878 and opened in 1891. The Chengalpattu-Walajabad line was opened in 1880.

Viluppuram was connected to Vriddhachalam railway station in 1927.

The Mayiladuthurai-Tarangambadi line was opened in 1926 and was closed in 1987.

Chennai suburban railway

A major part of the South Line, Chennai Suburban is part of this line. The area south of Chennai was served by a single line shared by passenger and goods trains till 1931. Electric trains in the sector were planned as early as 1923. Construction work began in 1926 and was completed in 1931. A new line for electric trains was added between Chennai Beach and Egmore, and two lines were added between Egmore and Tambaram. The first MG EMU services were run on 1.5kV DC overhead lines on 11 May 1931. In the 1960s the Chennai Beach - Tambaram - Viluppuram sector was converted from 1,5 kV DC traction to 25 kV AC traction and limited EMU services were extended to Chengalpet. In 1969, an additional metre gauge track was laid between Tambaram and Chengalpet. Starting with the 1990s the entire area was converted to broad gauge.

Gauge conversions

With the conversion from metre gauge to broad gauge, the entire Egmore-Tambaram-Tiruchirapalli-Dindigul-Madurai sector virtually complete, broad gauge passenger traffic was initiated in March 2001. The left over conversion work was then completed and the last metre gauge EMU service ran between Tambaram and Egmore on 1 July 2004.

Conversion from metre gauge to broad gauge of the Viluppuram - Puducherry branch line was completed in 2004. The Cuddalore Port Junction railway station - Vadalur sector was converted in 2003. After conversion work of the Thanjavur - Tiruvarur broad gauge section was opened to traffic in 2006 and Tiruvarur - Nagore section in 2010.

Conversion from metre gauge to broad gauge of the Viluppuram-Cuddalore Port-Mayiladuthurai track was completed in 2010.

A broad gauge line (conversion from metre gauge) connecting Chengalpattu with Arakkonam was built in 1999-2000. The Thakolam-Arakkonam sector had to be realigned because of its proximity to the Arakkonam Naval Air Station

Electrification

The metre gauge track of Madras Beach-Tambaram sector was electrified in 1931 with 1.5 kV DC overhead system. In the fifties Indian Railways decided on using 25 kV AC overhead system on a national basis. The Madras Beach-Tambaram sector was converted to 25 kV AC overhead system in 1967.

The Tambaram-Chengalpattu-Viluppuram sector was electrified in 1964-65 and then again in 2000-01 (after gauge conversion) along with the Chengalpattu-Kanchipuram sector.

The broad gauge Viluppuram-Puducherry line was electrified in 2006.

The broad gauge Viluppuram-Tiruchirapalli sector was electrified in 2010.

New electrification survey in 2012-13 had been sanctioned in the Railway budget for the Karaikkal/Karaikkal port-Thiruvarur-Thanjavur-Tiruchchirappalli and Nagapattinam-Velankkani sectors.

Railway reorganization

The Great Southern Railway of India and Carnatic Railway merged to form South Indian Railway Company in 1874.

In the early 1950s legislation was passed authorizing the central government to take over independent railway systems that were there. On 14 April 1951 the Madras and Southern Mahratta Railway, the South Indian Railway Company and Mysuru State Railway were merged to form Southern Railway. Subsequently, Nizam's Guaranteed State Railway was also merged into Southern Railway. On 2 October 1966, the Secunderabad, Solapur, Hubli and Vijayawada Divisions, covering the former territories of Nizam's Guaranteed State Railway and certain portions of Madras and Southern Mahratta Railway were separated from Southern Railway to form the South Central Railway. In 1977, Guntakal division of Southern Railway was transferred to South Central Railway and the Solapur division transferred to Central Railway. Amongst the seven new zones created in 2010 was South Western Railway, which was carved out of Southern Railway.

External links

• Official Website of Southern Railway zone