Allerton TMD is a railway traction maintenance depot

Traction maintenance depot

In the United Kingdom, a traction maintenance depot, or TMD, is a railway depot where locomotives are serviced and maintained. A traction and rolling stock maintenance depot, or T&RSMD, is a maintenance depot where locomotives, multiple units and rolling stock are serviced and maintained. Each rail...

 situated in Liverpool

Liverpool

Liverpool is a city and metropolitan borough of Merseyside, England, along the eastern side of the Mersey Estuary. It was founded as a borough in 1207 and was granted city status in 1880...

. The depot is opposite Liverpool South Parkway

Liverpool South Parkway railway station

Liverpool South Parkway station is a railway station and bus interchange in the Garston district of Liverpool, England. It serves, via a bus link, Liverpool John Lennon Airport in the neighbouring suburb of Speke....

 and is visible to the north on the way to Hunts Cross

Hunts Cross railway station

Hunts Cross railway station is a Grade II listed railway station in Hunts Cross, Liverpool, England. It is situated on the southern branch of the City Line's Liverpool to Manchester route, and is the southern terminus of Merseyrail's Northern Line.-History:...

. The depot is now owned and soon to be operated by Northern Rail

Northern Rail

Northern Rail is a British train operating company that has operated local passenger services in Northern England since 2004. Northern Rail's owner, Serco-Abellio, is a consortium formed of Abellio and Serco, an international operator of public transport systems...

, but used to be owned by EWS. The depot code is now AN but, in steam days, the shed code was 8J.

In 2011, It was announced that Northern Rail

Northern Rail

Northern Rail is a British train operating company that has operated local passenger services in Northern England since 2004. Northern Rail's owner, Serco-Abellio, is a consortium formed of Abellio and Serco, an international operator of public transport systems...

 had purchased the now closed Allerton TMD With the intention of refurbishing and reopening the depot for servicing of its Class 156

British Rail Class 156

The British Rail Class 156 Super Sprinter is a diesel multiple-unit train . 114 of these units were built from 1987 to 1989 by Metro-Cammell at its Washwood Heath Works in Birmingham...

  Fleet. In the future, it will also be the home for the cascaded Class 319

British Rail Class 319

The British Rail Class 319 dual-voltage electric multiple units were built by BREL York in two batches in 1987–88 and 1990. The trains were introduced for new north-south cross-London services from Bedford to Brighton, and since privatisation these services have been operated by Thameslink and...

 Fleet, when Network Rail's North West Electrification programe is complete.

Until 2006, Merseyrail

Merseyrail

Merseyrail is a train operating company and commuter rail network in the United Kingdom, centred on Liverpool, Merseyside. The network is predominantly electric with diesel trains running on the City Line. Two City Line branches are currently being electrified on the overhead wire AC system with...

 Class 507

British Rail Class 507

British Rail Class 507 electric multiple units were built by BREL at York works in two batches from 1978 to 1980. The first thirty sets were constructed from September 1978 to mid-1979 and a further three were added during 1980...

 and Class 508

British Rail Class 508

The British Rail Class 508 electric multiple units were built by BREL at York works in 1979-80. They were the fourth variety of BR's then-standard 1972 design for suburban EMUs, eventually encompassing 755 vehicles and five classes...

 sets were regularly sent to this depot for wheel turning. A new wheel lathe has opened at Kirkdale TMD

Kirkdale TMD

Kirkdale TMD is a Traction Maintenance Depot located beside Kirkdale railway station in north Liverpool, England. It is the largest depot on the Merseyrail network, located on the Northern Line and is used primarily for stabling units, carrying out minor repair works and cleaning units both...

 thus ending the practice of sending units here.

Other units, including former Virgin

Virgin Trains

Virgin Trains is a train operating company in the United Kingdom. It operates long-distance passenger services on the West Coast Main Line between London, the West Midlands, North West England, North Wales and Scotland...

 Voyagers and goods carriages/engines have been stabled here. The depot is located very close to Garston Freightliner

Freightliner (UK)

Freightliner Group Limited is a rail freight and logistics company, founded in 1995 and now operating in the United Kingdom, Poland, and Australia. It is the second largest rail freight operator in the UK, after DB Schenker Rail .- History :...

 Terminal (Garston

Garston, Merseyside

Garston is a district of Liverpool, Merseyside, England. It is bordered by Aigburth, Allerton, and Speke.-History:Gaerstun, meaning 'grazing settlement' or 'grazing farm' in Old English, is one possible root of the name....

Docks) and also not far from Widnes Intermodal Depot.