- Cogload Junction
A train from London via Castle Cary travels west. Note the photograph, due to the telephoto lens, misleads the eye - this junction has a speed limit of 100mph!
Location Durston, Somerset Country England Coordinates Coordinates: Routes Reading to Taunton Between Castle Cary
Bristol to Taunton Between Bridgwater
History Junction opened 1906 Flyover built 1931 Signal box closed 1986
Cogload Junction is a railway junction in Durston, Somerset, England. It is where the 1906-opened London to Penzance Line via Castle Cary joins the original line that runs via Bristol. A flyover was constructed in 1931 converting it into a flying junction.
The junction is situated in the parish of Durston, 5 miles (8 km) east of Taunton railway station, but is named after Cogload Farm which is south of the Castle Cary Line near the junction. It lies alongside the Bridgwater and Taunton Canal.
The Bristol and Exeter Railway was opened through Durston on 1 July 1842. By 1867 it was carrying through trains from London Paddington station to Penzance, and in 1876 the line became part of the Great Western Railway. On 11 June 1906 goods trains started to run over the new Langport and Castle Cary Railway line between Cogload and Castle Cary, and passenger trains joined them on 2 July that year. This shortened the journey from London to Taunton (and Penzance) by 20.25 miles (33 km).
At this time an ordinary double-track flat junction was provided, which meant that down trains running from Bristol to Taunton could be delayed by up trains from Taunton to Castle Cary crossing in front of them. In 1931 work was undertaken to convert it to a flying junction which would then allow the down Bristol trains to cross over the up Castle Cary route without conflict. On 19 July the signal box was moved 660 yards (600 m) west of the original junction where it had been standing, but it remained on the north side of the line between the railway and the canal. This allowed the tracks to be moved to a new alignment to give space for the construction of the embankment for the down Bristol line. The completed layout with the flyover was brought into use on 15 November. Two additional tracks westwards from Cogload to Creech St Michael were brought into use at the same time. The four tracks were (from north to south): up Bristol, up Castle Cary, down Castle Cary, down Bristol. No physical junction then existed between the two routes at Cogload, but on 8 July 1934 a connection was installed that allowed down trains from Bristol to be switched onto down Castle Cary line at Cogload; and on 25 October 1942 a similar connection was put in to allow up Bristol trains to use the Castle Cary line from Taunton to Cogload. These connections allowed fast Bristol trains to overtake slower trains that called at Creech St Michael Halt which only had platforms on the outer (Bristol) tracks. Slow trains between Taunton and Castle Cary ran via Durston station to Athelney on the Yeovil Branch Line where there was another junction with the Castle Cary route, which meant that they ran through Cogload and Creech St Michael on the outer tracks.
On 29 March 1986 the two Bristol lines were taken out of use between Cogload and Taunton, returning the line to its original two tracks. The following weekend saw Cogload signal box closed on 5 April, and the points and signals were then operated from Exeter Panel Signal Box. A slight realignment of the up Bristol line at the same time allowed the junction to be moved and the speed limit raised to 90 miles per hour (140 km/h).
Cogload JunctionLegend To Bristol Cogload Junction To London via Athelney To Taunton
In 1931 two embankments were built. A long, shallow one alongside the down Bristol line between Durston railway station and Cogload; and a shorter, steeper one alongside the down Castle Cary line to bring trains back to ground level before the line passes beneath the road bridge at Charlton, a short distance east of the junction. Between the two embankments is a large steel Warren truss girder bridge.
The two trusses are asymmetrical and different sizes as the bridge is constructed on the skew due to the angle that the two lines make to each other. The larger truss is 185 feet (56.4 m) long and weighs 88 long tons (89 t); the smaller truss is 161 feet (49.1 m) and weighs 70 long tons (71 t). Vertical suspenders are attached to alternate cross-girders, which are spaced at 11.75 feet (3.6 m) centres. These support two longitudinal bearers beneath the rails, above which is a steel deck. The whole steelwork weighs 227 long tons (231 t).
- ^ Taunton and Blackdown Hills. Explorer Map. 128 (B2 ed.). Southampton: Ordnance Survey. 2008 . ISBN 0-319-24029-8.
- ^ MacDermot, E T (1927). History of the Great Western Railway. 1 (1833-1863) (1 ed.). London: Great Western Railway.
- ^ MacDermot, E T (1931). History of the Great Western Railway. 2 (1863-1921) (1 ed.). London: Great Western Railway.
- ^ Cooke, RA (1979). Track Layout Diagrams of the GWR and BR WR, Section 16: West Somerset. Harwell: RA Cooke.
- ^ Vaughan, John (1987). The West of England Resignalling. Shepperton: Ian Allan. ISBN 0-7110-1744-1.
- ^ Tourret, R (2003). GWR Engineering Work 1928–1938. Abingdon: Tourret Publishing. ISBN 0-905878-08-6.
Wikimedia Foundation. 2010.
Look at other dictionaries:
Langport and Castle Cary Railway — [v · d · … Wikipedia
Reading to Plymouth Line — The Reading Plymouth line is the central part of the trunk railway line between London Paddington and Penzance railway stations in the southern United Kingdom. It is a major branch of the Great Western Main Line and diverges at Reading, running… … Wikipedia
Castle Cary Cut-Off — The Castle Cary Cut Off is a railway line from Castle Cary railway station to Cogload Junction near Taunton, Somerset, England, [cite book |last = Conolly |first = W Philip |title = British Railways Pre grouping Atlas and Gazeteer |publisher =… … Wikipedia
Disused railway stations (Bristol to Exeter Line) — Bristol to Exeter Legend … Wikipedia
Berks and Hants Railway — The Berks and Hants Railway consisted of two railway lines built by the Great Western Railway (GWR) in an attempt to keep the London and South Western Railway (LSWR) out of the area that it considered to be its territory in England.The two lines… … Wikipedia
West Somerset Railway — Locale Minehead, Somerset, England Terminus Bishops Lydeard … Wikipedia
Reading–Plymouth Line — Legende 0.00 … Deutsch Wikipedia
Bahnstrecke Reading–Plymouth — Reading–Plymouth Legende … Deutsch Wikipedia
Norton Fitzwarren railway station — Norton Fitzwarren Location Place Norton Fitzwarren Area … Wikipedia
Bristol to Taunton Line — The Bristol to Taunton Line is a main line railway in England, which links the Great Western Main Line at Bristol Temple Meads to the London to Penzance Line at Taunton, Somerset. Passenger services are operated by First Great Western and… … Wikipedia