Hertford loop line

Hertford loop line
Hertford loop line
	Great Northern Class 717 at Gordon Hill
Overview
Status	Operational
Owner	Network Rail
Locale	Greater London; East of England
Termini	London Moorgate; Stevenage;
Stations	11
Service
Type	Heavy rail
System	National Rail
Services	1
Operator(s)	Great Northern
Depot(s)	Hornsey EMUD
Rolling stock	Class 717 "Desiro City"
History
Opened	1871—1924
Technical
Line length	24 mi (39 km)
Number of tracks	2
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge
Loading gauge	W9
Route availability	RA 7-9
Electrification	25 kV AC OHLE
Operating speed	Maximum 75 mph (121 km/h)
Route map
	; (Click to expand)

The Hertford loop line (also known colloquially as the Hertford Loop) is a branch of the East Coast Main Line, part of the Northern City Line commuter route to London for Hertford and other Hertfordshire towns and an occasional diversion route for the main line. The line is part of the Network Rail Strategic Route 8, SRS 08.03 and is classified as a London and South East Commuter line.

Hertford Loop Line

East Coast Main Line

to Edinburgh Waverley

Stevenage

Langley South Junction

Watton-at-Stone

Stapleford

Mole Wood Tunnel

364 yards (333 m)

Hertford East branch line

Hertford North

Hertford & Welwyn Jn Rly

Hornsmill Viaduct

Bayford

Ponsbourne Tunnel

1 mile 924 yards (2,454 m)

Cuffley

Sopers Farm Viaduct

M25

Rendlesham Viaduct

Winchmore Hill

Palmers Green

Wood Green North Jn

Palace Gates Line

to London King's Cross

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