Great Western Electrification Progress

Discussion in 'Infrastructure & Stations' started by 76020, 6 May 2013.

  1. Sean Emmett

    Sean Emmett Member

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    Yesterday's Pembroke train arrived at Parkway on diesel and the return left Parkway on diesel.

    Electric running from Parkway started at the end of last year, so not sure why trains were heading east on diesel unless fault or maintenance of the wires?

    Drivers of down services generally fire up the diesels after Westerleigh Jn although some wait until the Parkway stop. Have seen plenty of services arrive Parkway with pan up.
     
    Last edited: 2 Jun 2019
  2. 59CosG95

    59CosG95 Established Member

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    GWML Electrification: State of Play, as of week commencing 3/6/19.
    All mileages given from Paddington, except where noted.
    Paddington to Wootton Bassett Jct - LIVE
    • All main line tracks wired as far as Wootton Bassett Jct, and are to be considered "live" as such. From Wootton Bassett Jct, the envelope of "live" wires continues along the South Wales Main Line to Filton Jct (inc. Bristol Parkway), and to the Limits of Wiring on the Berks & Hants line and Reading-Basingstoke Line; details are given below.
    • TTCs have replaced/been replacing headspans at various locations within London - locations include Westway (beneath the A40), Acton Main Line, Ealing Broadway, and between Southall & H&H. These are part of the works for the Elizabeth Line.
    • Everything wired at Reading (bar P4-6 which were never in the plan). Includes the TCD & the curves, down to Reading West (see B&H section).
    • West of Didcot Parkway, all lines are wired & live heading towards Swindon.
    • Everything wired at Swindon (bar the goods lines north of P1, where provision is provided).

    Small Points
    • ATF wires in operation from Maidenhead to Wootton Bassett; Kensal Green to Maidenhead currently only using return conductors but will be AT-ready in the near future. Some AT wires up along this stretch now; whether they are live remains to be seen.
    • Parapet Work extended upwards at Southbury Lane Bridge, Ruscombe; the wing walls remain unfinished. Original Coping stones have now been replaced.
    • Platforms are being extended from Tilehurst to Didcot Parkway.
      • Tilehurst - visually complete but barriered off.
      • Pangbourne - complete and in use. Still advertised as being 7 coaches long.
      • Goring & Streatley - visually complete but barriered off.
      • Cholsey - complete and in use. Still advertised as being 7 coaches long.
      • Didcot Parkway (P2 & P3) - visually complete but barriered off.
    • Few masts and cantilevers now up on the Didcot Avoiding Line, which finish at Appleford; Appleford LC being the limit of structures for the time being.
    • Oxford Lines west of Didcot Pkwy wired as far as the loco fuelling sdg; Down Oxford as far as 53m 31ch, Up Oxford as far as 53m 42ch. Didcot avoiding lines have sprouted masts (4 portals, 2 TTCs), with a wire pair over the Down Didcot Avoider.
    • A note on Steventon: Wires up under the High St Bridge (aka the "Brunel Bridge"); however, the bridge may well be demolished in CP6. "Temporary" parapet work to protect passers-by from stray currents now complete. Wires west of Causeway Crossing are only authorised for passenger service on 80x trains in both directions, however, 387s are allowed to run empty to/from Cocklebury sidings under AC. The appeal to demolish the bridge is due to occur in the autumn (of 2019). The discussion continues.
    • Overruns through Swindon Jct (77m 36ch) onto the Golden Valley Line have also been wired.
    • Swindon Cocklebury Sidings in operation for Class 387 stabling as of 2/1/19.

    The "Main Line"; Wootton Bassett Jct - Chippenham (Cocklebury Lane Bridge) - LIVE
    Until further notice, the 25kV transmission wires will run in a trough from Cocklebury Lane Bridge (just east of Chippenham) to Thingley Jct. Large steelwork is expected to remain in situ until wiring is authorised west of Thingley, but some specific items may be poached if required elsewhere (and duplicates aren't stored at RAF Wroughton). Details given in the "Postponements" section.
    • Both lines are LIVE, signed off for passenger use, and in service from Wootton Bassett Jct to Christian Malford (93m 31ch) as of 0700 on 21/04/2019 (Easter Sunday).
    • Catenary, contact & Earth wires are up over/adj. to both lines from Cocklebury Lane to Wootton Bassett Jct.
    • Limit of AT Feeding: the Auto-Transformer at Christian Malford.

    Chippenham (Cocklebury Lane Bridge) - Thingley Jct
    • No piles in Chippenham station, nor any masts affixed to the viaduct.
    • All piles in and majority of masts (and cantilevers) up from the western end of the viaduct to Thingley Junction (where the feeder station will be). Most TTCs have booms from beyond the viaduct to Thingley East Junction. About 14 masts are up in the vicinity of Thingley Feeder Stn, 2 of which have TTC booms affixed. Another has an STC boom.
    • Piles continue westwards to the next bridge.

    Thingley Jct - Keynsham
    • No wiring for the foreseeable future, but overbridges between Thingley Jct & Box Tunnel have all been rebuilt. Corsham Main Road Bridge needs its parapets raising. New aqueduct & footbridge at Corsham complete.
    • Both Box & Middle Hill Tunnels have had track lowered.
    • A new footbridge has been built at Ashley Box.
    • Piles also in (and have been for over a year) at Ashley (beyond Box Tunnel) - these might well be trial piles.
    • Bathampton Jct to beyond Sydney Gardens has had track lowered. A new signal gantry at Bathampton Jct was installed over Xmas 2017 and is now in use after the removal of the old gantry in May 2019.
    • Bath Spa platforms realigned & raised, with track also slewed.
    • Track through Oldfield Park & Keynsham now lowered.
    • A lot of piles are in along the embankment around Saltford and Keynsham in readiness for future wiring.

    South Wales Main Line (Wootton Bassett Jct-Bristol Parkway-Severn Tunnel-Newport-Cardiff)

    Wootton Bassett Jct to Filton Jct (inc. Bristol Parkway) - LIVE
    • Wires from Wootton Bassett Jct to Bristol Parkway in passenger service since 30/12/18.
    • All 6 through Lines at Bristol Parkway have been wired and are live.
    • Live wires continue to Filton Jct & Stoke Gifford IEP Depot; Chipping Sodbury Goods Loop and the Cheltenham Curve overrun (as far as the limit of wiring) are also fully wired and live.
      • Limit of Live Wires on the Filton Lines (+ Down Bristol Parkway Relief): 112m 23ch.
      • Limit of Live Wires on the Charfield Lines (from Westerleigh Jct): 120m 59ch.
    • Filton Bank bridge works (mileages all from Temple Meads):
      • Easton Rd Overbridge (1m 18ch) completely rebuilt.
      • Narroways FB (2m 12ch) & Ashley Hill FB (3m 11ch) replaced.
      • Bonnington Walk Overbridge (3m 62ch) - parapets raised.
      • FB south of Filton Abbey Wood (4m 18ch) will need work if wiring is to occur.
    Filton Jct - Severn Tunnel
    • Stoke Gifford IET Depot all wired and energised.
    • Patchway Tunnels conductor rail installed.
    • Wires extend westwards from Filton Jct through Patchway and Pilning (across all lines) to the Severn Tunnel (on BOTH lines).
    • Limit of Live Wires on the Tunnel Lines extended from Stoke Gifford Jct to Patchway Jct (112m 68ch) as of 0220 on 12/5/19.
    • Cattybrook Brickworks Bridge closed since 18/3/18.

    Severn Tunnel - Newport
    Due to have IETs in AC service by next year - hopefully sooner!
    • Severn Tunnel Conductor rail in place.
    • Wires are now up over all lines (both Tunnel Lines, both Main Lines & the Down Relief) at STJ Station; this also includes the overruns on the mains towards Chepstow. Wires continue westwards to Magor Bridge (Redwick Rd?)
    • The Up Tunnel Loop between STJ & the Tunnel is fully wired.
    • Ground trunking currently being installed at STJ in preparation for the electrical feed.
    • Feeder cables now hang from both the eastern set and western set of Switchgear Masts.
    • Masts going up between the M4 Bridge & Bishton Flyover. These include:
      • Two opposing pairs of TTC masts have gone up between Church Rd Bridge & the Playing Fields Footbridge. These may now be bearing wires.
      • Two large uprights have gone up between Undy Playing Fields footbridge & "the ramp" bridge at Magor on opposite sides of the line; these may well take a portal boom.
      • Another 3 masts (two for a portal boom, one a TTC with boom up) have appeared east of "the ramp" bridge at Magor; these join the sole TTC on the Up side by the bridge.
      • 4 TTCs are up west of "the ramp" bridge; at least 3 bear SPS. West of these, a Portal (due to take mid-point anchor terminations) has gone up.
      • The signal gantry at Magor (west of the West End Footbridge) has been replaced by 4 signals on posts; this should mean its removal prior to electrification is imminent. A TTC with SPS is up over the Mains there too.
      • Around the aforementioned doomed signal gantry, another MPA Portal and a 3-track portal have gone up, as well as more 4-track Portals & TTCs - the gap is closing!
      • 1 mast is up to the west of Redwick Rd Bridge (by the Down Relief), and a mast due to bear a portal is up to the east of Whitewall Footbridge (by the Up Main). A "Slim" TTC is up over the centre pair of lines just east of Redwick Rd bridge. OTP is in place for a masting operation by Redwick Rd compound.
      • This area of Magor (the site of the old station) still has a few gaps.
      • NR are currently working on wiring all 4 lines between Magor & Bishton (as of week beginning 6/5/19). Up Relief Wired through Magor old station. ATF wires going in around Magor too.
      • Plenty of TTCs (all of them, perhaps?) and a 4-track portal are up between the A4810 and the bridge over the eastern end of Bishton Flyover. Steelwork (mainly TTCs) continues to a large Tensorex Anchor Portal at the eastern end of Bishton Flyover.
      • Masts (with SPS fitted) up between Bishton Flyover (including over it) and Llanwern West Jct (156m 20ch). 5 masts are currently up on the curve down from the flyover at its eastern end.
      • Over Bishton LC, ALL wires (2 Earths, 2 ATFs, and 4 C&C pairs) are now up. This continues to Somerton Rd Bridge on all lines.
    • A run of Earth Wires & ATF wires have been strung up on the Relief side (adjacent to the DR) between Llanwern Works East Connection & Llanwern West Jct. The AEW on the Up side now continues to past Lliswerry Pond, where Bird Flight Deflectors have been installed.
    • Just east of Somerton Rd Bridge, a Tensorex Anchor Portal has gone up.
    • 6-track portals, probably 'Vierendeels', going up around East Usk Yard (approx. MP157 1/2).
    • Between the Maindee Jcts (157m 74ch to 158m 16ch), a cluster of piles is in beside the Down Relief; these are complemented by masted piles on the Main side (adjacent to the Up Main).
    • Caerleon Rd Overbridge to be refurbished in 2 phases - 20/7/18 to 30/11/18 (done), and then January ‘19 to March ‘19 (done?).
    • Some SPS has now gone up between Maindee West & Maindee East; between Maindee West & Maindee North Jct (41m 03ch from the former Rotherwas Jct, just south of Hereford; the ELR for the southern part of the Marches Line), masts with TTCs on are also going up (as overruns) over the Marches Line; the termination mast & associated TTC are just north of signal "NT 1559".
    • The gap between the Maindee Triangle (Caerleon Rd Bridge) & East Usk Yard (Somerton Rd Bridge) is closing, with the erection of a number of back-to-back non-Series 1 TTCs in East Usk Yard.
    • The AT Feeder Station at the Maindee Triangle, the tall masts have now gained their spanwires in readiness for the C&C below.
    • All portal structures have now gone up over the Usk Bridge; all portals also have SPS in situ. A Tensorex portal is up immediately east of the bridge.

    Newport
    • All canopies now cut back.
    • All steelwork in Newport is complete. Remaining SPS and Registration Arms are also being installed.

    Newport - Cardiff
    • Plenty masts up around Gaer Jct (159m 32ch) north of Cardiff Rd Bridge (the B4237):
      • one by the Down Relief;
      • two by the Up Main (one of which is a boomed TTC with SPS);
      • three by the Gaer Jct - Park Jct Chord.
    • Around 6 piles are in adjacent to the Up Main between Gaer Jct and Ebbw Jct (160m 07ch); these will probably take masts for portal booms. One such boom appears to have gone in! Currently unknown if Alexandra Dock Jct Yard will be electrified.
    • Lots of steelwork up immediately behind the signal gantry adjacent to the Up Main at Ebbw Jct; this includes a full portal boom and a TTC acting as an overrun mast on the Ebbw Vale branch.
    • Almost all steelwork up from Ebbw Jct to Long Dyke Jct (169m 35ch) east of Cardiff Central; most SPS is now up too.
    • ATF wire installed on the Up Main between Lighthouse Rd & New Dairy Farm bridges. In the Up direction, the Earth Wire is in place until just before the bridge over the Ebbw River.
    • Wires up through Duffryn on the Up Main between Lighthouse Rd Bridge and the Ebbw River Bridge.
    • Wires up across all 4 tracks between Pengam Jct (168m 40ch) & Marshfield.
    • About 4 or 5 portals have been erected just west of Pengam Jct; 5 masts are up on the Up side east of Rover Lane bridge, complemented by 2 on the Down side.
    • 1 run of C&C has gone up between Moorland Road Jct (168m 65ch) and Long Dyke Jct (169m 35ch) over the Reliefs; this is assumed to be a crossover as it crosses from one Relief line to the other.
    • At Long Dyke Jct, all masts are up, and the ATF wire is now up over the Relief Lines.
    • In the Pellet St area, a Mid Point Anchor Portal Boom has now gone up.
    • Just east of St. Mary's St Bridge, 2 hexagonal Tensorex Portals have been erected over all tracks.
    • Over the bridge over St. Mary's Street in Cardiff (just east of Central), and immediately to the west of the bridge, 5 portal booms spanning all tracks have gone up.
    • Similar bespoke mast foundations are going in just east of Bute St Bridge, near the junction with the line from Queen Street.
    • Splott Rd Bridge upgrade work now complete.
    Cardiff Central - Platforms 0-4 to be wired
    • Re-signalling completed. Platform 0 now open. 3 masts now up over P0/1 with TTC booms.
    • An Anchor Portal (of the hexagonal "TGBU" variety) has gone up over P2/3, just east of the canopies.
    • All large steelwork for P4 is now in position.
    • Most (if not all) TTC masts for P2 & the Up Through Line, along with P3 & the Down Through Line have gone up at the station. Some already have SPS.
    • Brackets appear to be in place on the coping stones on the Taff Viaduct (at the western end of the station).
    • Plenty piles up adjacent to Cardiff Canton. A number of these now appear to have masts on them, as seen from a westward-facing shot from Central. Portals next?
    • Brickwork Sidings to be increased in length (and electrified) to accommodate GWR Class 387s; the first masts and cantilevers have now gone up, with around 2 boomed TTCs and 2 STCs in position.
    • Proposed Limit of Wiring: Leckwith Loop North Jct (171m 55ch) at a guess.
    Swansea IEP Depot
    • New IEP Depot at Maliphant Sidings, Swansea now complete; all steelwork up. SPS, such as Insulators, Switchgear and Cantilevers have all been taken down, leaving only bare masts/booms in situ.

    GWML/SWML Blockade Works (2018):
    • 6/7 to 3/12: Reduced capacity (2 lines only) for wiring work between Newport & Cardiff Ctl.
    • 15/9 to 6/10, and 13/10 to 14/10: Bristol Parkway electrified.
    • 27/10 to 18/11, 24-25/11, 1-2/12: Filton Bank 4-tracked.
    • 11/11: Bristol TM to Bath Spa resignalled.
    • December blockades at Bristol Parkway & Didcot Parkway done.
    • Christmas-New Year Blockade at Severn Tunnel Jct done.

    GWML/SWML Blockade Works (2019):
    • 20/1/19, and 10/2/19: Newport to Bridgend blockaded (inc. Cardiff Central) for electrification work AT Cardiff Central; both done.
    • 17/2/19: Bristol Parkway to Newport blockaded for electrification work over the Usk Bridge at Newport; done.
    • 31/3/19: Newport to Bridgend blockaded (inc. Cardiff Central) for electrification work AT Cardiff Central; done.
    • 19/4/19 to 22/4/19: Bristol Parkway to Newport blockaded for electrification work in the Severn Tunnel Junction area; done.
    • 27/4/19 to 28/4/19: Bristol Parkway to Newport blockaded for electrification work in the Severn Tunnel Junction area; done.
    • 9/6/19: Newport to Bridgend blockaded (inc. Cardiff Central) for electrification work.
    • 16/6/19: Newport to Bridgend blockaded (inc. Cardiff Central) for electrification work.
    • 27/7/19 to 28/7/19: Bristol Parkway to Cardiff Central blockaded for electrification work.
    • 25/8/19 until 14:00: Bristol Parkway to Cardiff Central blockaded for electrification work.
    • 8/9/19 until 14:00: Bristol Parkway to Cardiff Central blockaded for electrification work.
    • 14/9/19 to 15/9/19: Newport to Bridgend blockaded (inc. Cardiff Central) for electrification work.
    • 22/9/19 until 14:00: Newport to Bridgend blockaded (inc. Cardiff Central) for electrification work.
    • 29/9/19 until 14:00: Newport to Bridgend blockaded (inc. Cardiff Central) for electrification work.
    • 13/10/19 until 14:00: Newport to Bridgend blockaded (inc. Cardiff Central) for electrification work.
    • 20/10/19 until 14:00: Newport to Bridgend blockaded (inc. Cardiff Central) for electrification work.
    • Details of any further OLE-related blockades will be added as they are made available.

    Berks & Hants Line (Reading-Newbury) - LIVE
    Electric trains in squadron service.
    • Wires from Oxford Rd Jct are LIVE to the limits of electrification (53m 42ch on the Newbury Lines, 38m 07ch on the Basingstoke Lines) since 0650 on 21/10/18.
    • Class 387s are now in service on Reading-Newbury services as of 31/12/18.
    • Within Reading West, piles for the new footbridge (under Murphy's remit) are in, but have been "decapitated" (i.e. shortened) and capped until a new footbridge solution is found.
    • New stairs from Reading West's Down platform to Oxford Rd are now in use. Work is ongoing for a permanent footbridge replacement.
    • Parapet work on Tilehurst Rd Overbridge has been completed on both sides, although Heras fencing was still in place at the end of April.
    • Platforms extended at Reading West, Theale, Aldermaston and Thatcham.
    • Newbury's new footbridge is now open; lifts in service as of 19/4/19.
    • Immunised signalling continues to about MP55 1/2. Bedwyn Turnback Siding now extended to accommodate 5-car IETs.

    Project Postponements
    • Thames Valley Branches:
      • Windsor & Henley deferred to at least CP6. The first few yards of the Windsor branch (Not the Henley Branch) have been wired as an overrun.
      • Marlow removed from scope of current programme. The first few yards of the branch have been wired as an overrun.
      • Southcote Jct to Basingstoke deferred to at least CP6. The first few yards of the Basingstoke Lines have been wired as an overrun.
    • Appleford LC to Oxford paused; if CP6 accounts allow for wiring to be extended to Oxford, it would be very likely to happen now that Oxford has been remodelled.
    • Catenary & Contact wires between Chippenham (Cocklebury Lane Overbridge) & Thingley Jct have been deferred until at least some point in CP6. All Large steelwork to remain, unless required elsewhere.
    • Bristol Temple Meads to Bath & Bristol Parkway paused, dependent on Bristol resignalling:
      • Taunton-Bristol Parkway completed over Easter 2018;
      • Bristol Temple Meads to Bath Spa completed in November 2018;
      • The WSM stretch from Flax Bourton Tunnel to Cogload Jct remains outstanding;
      • Track remodelling of Bristol East Jct remains outstanding;
      • Filton Bank 4-tracking completed Autumn 2018.
      • Further Signalling works due in 2019: Bath Spa due to be resignalled over the 11th/12th of May (done), and the 23rd of June. N.B. The Severn Beach Line will be closed for resignalling works on Sunday 7th of July.
    • Bristol Temple Meads' "Midland Shed" to be reopened in CP6 at the earliest, after Bristol resignalling is complete and the PSB is demolished.
    As always, do let me know if I've missed anything!
    (apologies to anyone who saw it in a state of source code chaos too).
     
  3. oglord

    oglord Member

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    There is now a run of catenary and contact wire on the down relief from the eastern edge of the Usk river bridge in Newport, across the bridge and through the down platform loop (Platform 1) as far as the Hillfield tunnel.
     
  4. Jurassicjewel

    Jurassicjewel Member

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    Minutes from Steventon Parish Council annual meeting held on 7 May

    I think the spend up to £5k for professional advice could be better spent elsewhere!

    17.2.1. P17/V1154/LB. Steventon Overbridge High Street Steventon Abingdon OX13 6RS Demolition of listed railway overbridge, and provision of replacement bridge. As amended by plans received on 10 August 2017. (As per additional information received 19 September 2017 and OCC Letter received 1 March 2018). Additional Options Review from PBA received 16 March 2018. Written representations. Deadline for written representation at present 22 May likely to be extended. The Parish Council to ensure that all presentations were put before the inspector, including those given to the Vale Planning Committee meetings. Railway working group to meet. A decision to go forward with the objections and spend up to £5k on professional advice from Rob Kinchin-Smith and Martin at Solke Engineering was voted and agreed.
     
  5. absolutelymilk

    absolutelymilk Established Member

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    Don't suppose anyone has a rough map of how far along the wiring has progressed?
     
  6. reddragon

    reddragon Member

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    • Platforms are being extended from Tilehurst to Didcot Parkway.
      • Tilehurst - complete and in use. Still advertised as being 7 coaches long.
      • Pangbourne - complete and in use. Still advertised as being 7 coaches long.
      • Goring & Streatley - complete and in use. Still advertised as being 7 coaches long.
      • Cholsey - complete and in use. Still advertised as being 7 coaches long.
      • Didcot Parkway (P2 & P3) - visually complete but barriered off. - dunno
     
  7. GRALISTAIR

    GRALISTAIR Established Member

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    There is one that has just been posted in the pinned Electrification Resources thread at the top of the page. I am not too keen on the contrast and colour scheme legolash20 has provided though.
     
  8. Legolash2o

    Legolash2o Member

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    I've added a coloured version on the same post. The black and white makes it's easier to see the colours but not great for printing out so I generally have a coloured version as well.
     
  9. Richard Scott

    Richard Scott Member

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    Up main in Magor now has catenary wire but no contact wire. Still lacking ATF wire on up side also.
     
  10. yanti

    yanti Member

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    Sorry for being a numpty but what and where on earth is the "pinned Electrification Resources thread at the top of the page."?
     
  11. swt_passenger

    swt_passenger Veteran Member

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    Should have been top of the index page for the infrastructure sub-forum, I reckon.
     
  12. R G NOW.

    R G NOW. Member

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    Could,nt they use third rails on the Cardiff valley lines?. Would I suppose be much cheaper and would get rid of the pacers and 150s. Wales would have a smaller version of an I.E.T. with duel pickup instead.

    It would have to be laid through platform 6 7 and 8 as well.
     
  13. Dai Corner

    Dai Corner Established Member

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    No. New third rail isn't allowed.

    IETs wouldn't fit on the Valley lines either.
     
  14. R G NOW.

    R G NOW. Member

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    I suppose it is safety issues. A shame really, because it would of made wales much greener.
     
  15. Dai Corner

    Dai Corner Established Member

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    Not as much greener as you might think. Only about half of the electricity we use is from renewable sources and 80% of what we generate is from fossil fuels (mainly imported gas with a bit of coal occasionally).

    'We' meaning Wales.
     
  16. absolutelymilk

    absolutelymilk Established Member

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    I haven't seen any data for Wales in particular but the use of fossil fuels is decreasing rapidly for the UK as a whole (down from 69% in 2012 to 44% in 2019 so far). Did you mean 50% from fossil fuels rather than 80%?
    http://www.mygridgb.co.uk/historicaldata/

    Thanks, I meant to see where the current wiring progress on the GWML is up to, rather than a map of ongoing electrification across the UK.
     
  17. GRALISTAIR

    GRALISTAIR Established Member

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  18. Dai Corner

    Dai Corner Established Member

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    Wales burns a lot of imported gas and has no nuclear power stations.

    https://seneddresearch.blog/2019/01/17/how-did-wales-generate-its-energy-in-2017/
     
  19. Mikey C

    Mikey C Established Member

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    It would improve local air quality though
     
  20. Linda smith

    Linda smith Member

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    Both of these images are to the west of somerton bridge, and taken at around 4.45 this morning.
     

    Attached Files:

  21. Linda smith

    Linda smith Member

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    Further update for you, looks like a few masts at magor have acquired a set of AT F wires across all four lanes. This again has appeared overnight.
     
  22. Richard Scott

    Richard Scott Member

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    Can confirm down main now wired through Magor although no additional progress on the up main or completing the ATF wire on the up side.
     
  23. oglord

    oglord Member

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    There is also additional wiring through Duffryn, where both main lines are wired as far as the New Dairy Farm bridge, after which it switches to both relief lines.
     
  24. 59CosG95

    59CosG95 Established Member

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    GWML Electrification: State of Play, as of week commencing 10/6/19.
    All mileages given from Paddington, except where noted.
    Paddington to Wootton Bassett Jct - LIVE
    • All main line tracks wired as far as Wootton Bassett Jct, and are to be considered "live" as such. From Wootton Bassett Jct, the envelope of "live" wires continues along the South Wales Main Line to Filton Jct (inc. Bristol Parkway), and to the Limits of Wiring on the Berks & Hants line and Reading-Basingstoke Line; details are given below.
    • TTCs have replaced/been replacing headspans at various locations within London - locations include Westway (beneath the A40), Acton Main Line, Ealing Broadway, and between Southall & H&H. These are part of the works for the Elizabeth Line.
    • Everything wired at Reading (bar P4-6 which were never in the plan). Includes the TCD & the curves, down to Reading West (see B&H section).
    • West of Didcot Parkway, all lines are wired & live heading towards Swindon.
    • Everything wired at Swindon (bar the goods lines north of P1, where provision is provided).

    Small Points
    • ATF wires in operation from Maidenhead to Wootton Bassett; Kensal Green to Maidenhead currently only using return conductors but will be AT-ready in the near future. Some AT wires up along this stretch now; whether they are live remains to be seen.
    • Parapet Work extended upwards at Southbury Lane Bridge, Ruscombe; the wing walls remain unfinished. Original Coping stones have now been replaced.
    • Platforms are being extended from Tilehurst to Didcot Parkway.
      • Tilehurst - complete and in use. Still advertised as being 7 coaches long.
      • Pangbourne - complete and in use. Still advertised as being 7 coaches long.
      • Goring & Streatley - complete and in use. Still advertised as being 7 coaches long.
      • Cholsey - complete and in use. Still advertised as being 7 coaches long.
      • Didcot Parkway (P2 & P3) - visually complete but barriered off.
    • Few masts and cantilevers now up on the Didcot Avoiding Line, which finish at Appleford; Appleford LC being the limit of structures for the time being.
    • Oxford Lines west of Didcot Pkwy wired as far as the loco fuelling sdg; Down Oxford as far as 53m 31ch, Up Oxford as far as 53m 42ch. Didcot avoiding lines have sprouted masts (4 portals, 2 TTCs), with a wire pair over the Down Didcot Avoider.
    • A note on Steventon: Wires up under the High St Bridge (aka the "Brunel Bridge"); however, the bridge may well be demolished in CP6. "Temporary" parapet work to protect passers-by from stray currents now complete. Wires west of Causeway Crossing are only authorised for passenger service on 80x trains in both directions, however, 387s are allowed to run empty to/from Cocklebury sidings under AC. The appeal to demolish the bridge is due to occur in the autumn (of 2019). The discussion continues.
    • Overruns through Swindon Jct (77m 36ch) onto the Golden Valley Line have also been wired.
    • Swindon Cocklebury Sidings in operation for Class 387 stabling as of 2/1/19.

    The "Main Line"; Wootton Bassett Jct - Chippenham (Cocklebury Lane Bridge) - LIVE
    Until further notice, the 25kV transmission wires will run in a trough from Cocklebury Lane Bridge (just east of Chippenham) to Thingley Jct. Large steelwork is expected to remain in situ until wiring is authorised west of Thingley, but some specific items may be poached if required elsewhere (and duplicates aren't stored at RAF Wroughton). Details given in the "Postponements" section.
    • Both lines are LIVE, signed off for passenger use, and in service from Wootton Bassett Jct to Christian Malford (93m 31ch) as of 0700 on 21/04/2019 (Easter Sunday).
    • Catenary, contact & Earth wires are up over/adj. to both lines from Cocklebury Lane to Wootton Bassett Jct.
    • Limit of AT Feeding: the Auto-Transformer at Christian Malford.

    Chippenham (Cocklebury Lane Bridge) - Thingley Jct
    • No piles in Chippenham station, nor any masts affixed to the viaduct.
    • All piles in and majority of masts (and cantilevers) up from the western end of the viaduct to Thingley Junction (where the feeder station will be). Most TTCs have booms from beyond the viaduct to Thingley East Junction. About 14 masts are up in the vicinity of Thingley Feeder Stn, 2 of which have TTC booms affixed. Another has an STC boom.
    • Piles continue westwards to the next bridge.

    Thingley Jct - Keynsham
    • No wiring for the foreseeable future, but overbridges between Thingley Jct & Box Tunnel have all been rebuilt. Corsham Main Road Bridge needs its parapets raising. New aqueduct & footbridge at Corsham complete.
    • Both Box & Middle Hill Tunnels have had track lowered.
    • A new footbridge has been built at Ashley Box.
    • Piles also in (and have been for over a year) at Ashley (beyond Box Tunnel) - these might well be trial piles.
    • Bathampton Jct to beyond Sydney Gardens has had track lowered. A new signal gantry at Bathampton Jct was installed over Xmas 2017 and is now in use after the removal of the old gantry in May 2019.
    • Bath Spa platforms realigned & raised, with track also slewed.
    • Track through Oldfield Park & Keynsham now lowered.
    • A lot of piles are in along the embankment around Saltford and Keynsham in readiness for future wiring.

    South Wales Main Line (Wootton Bassett Jct-Bristol Parkway-Severn Tunnel-Newport-Cardiff)

    Wootton Bassett Jct to Filton Jct (inc. Bristol Parkway) - LIVE
    • Wires from Wootton Bassett Jct to Bristol Parkway in passenger service since 30/12/18.
    • All 6 through Lines at Bristol Parkway have been wired and are live.
    • Live wires continue to Filton Jct & Stoke Gifford IEP Depot; Chipping Sodbury Goods Loop and the Cheltenham Curve overrun (as far as the limit of wiring) are also fully wired and live.
      • Limit of Live Wires on the Filton Lines (+ Down Bristol Parkway Relief): 112m 23ch.
      • Limit of Live Wires on the Charfield Lines (from Westerleigh Jct): 120m 59ch.
    • Filton Bank bridge works (mileages all from Temple Meads):
      • Easton Rd Overbridge (1m 18ch) completely rebuilt.
      • Narroways FB (2m 12ch) & Ashley Hill FB (3m 11ch) replaced.
      • Bonnington Walk Overbridge (3m 62ch) - parapets raised.
      • FB south of Filton Abbey Wood (4m 18ch) will need work if wiring is to occur.
    Filton Jct - Severn Tunnel
    • Stoke Gifford IET Depot all wired and energised.
    • Patchway Tunnels conductor rail installed.
    • Wires extend westwards from Filton Jct through Patchway and Pilning (across all lines) to the Severn Tunnel (on BOTH lines).
    • Limit of Live Wires on the Tunnel Lines extended from Stoke Gifford Jct to Patchway Jct (112m 68ch) as of 0220 on 12/5/19.
    • Cattybrook Brickworks Bridge closed since 18/3/18.

    Severn Tunnel - Newport
    Due to have IETs in AC service by next year - hopefully sooner!
    • Severn Tunnel Conductor rail in place.
    • Wires are now up over all lines (both Tunnel Lines, both Main Lines & the Down Relief) at STJ Station; this also includes the overruns on the mains towards Chepstow. Wires continue westwards to Magor Bridge (Redwick Rd?)
    • The Up Tunnel Loop between STJ & the Tunnel is fully wired.
    • Ground trunking currently being installed at STJ in preparation for the electrical feed.
    • Feeder cables now hang from both the eastern set and western set of Switchgear Masts.
    • Masts going up between the M4 Bridge & Bishton Flyover. These include:
      • Two opposing pairs of TTC masts have gone up between Church Rd Bridge & the Playing Fields Footbridge. These may now be bearing wires.
      • Two large uprights have gone up between Undy Playing Fields footbridge & "the ramp" bridge at Magor on opposite sides of the line; these may well take a portal boom.
      • Another 3 masts (two for a portal boom, one a TTC with boom up) have appeared east of "the ramp" bridge at Magor; these join the sole TTC on the Up side by the bridge.
      • 4 TTCs are up west of "the ramp" bridge; at least 3 bear SPS. West of these, a Portal (due to take mid-point anchor terminations) has gone up.
      • The signal gantry at Magor (west of the West End Footbridge) has been replaced by 4 signals on posts; this should mean its removal prior to electrification is imminent. A TTC with SPS is up over the Mains there too.
      • Around the aforementioned doomed signal gantry, another MPA Portal and a 3-track portal have gone up, as well as more 4-track Portals & TTCs - the gap is closing!
      • 1 mast is up to the west of Redwick Rd Bridge (by the Down Relief), and a mast due to bear a portal is up to the east of Whitewall Footbridge (by the Up Main). A "Slim" TTC is up over the centre pair of lines just east of Redwick Rd bridge. OTP is in place for a masting operation by Redwick Rd compound.
      • This area of Magor (the site of the old station) still has a few gaps.
      • NR are currently working on wiring all 4 lines between Magor & Bishton (as of week beginning 6/5/19). Up Relief Wired through Magor old station. Mains also wired but Up Main is without contact wire. ATF wires going in around Magor too, but only on the Down side.
      • Plenty of TTCs (all of them, perhaps?) and a 4-track portal are up between the A4810 and the bridge over the eastern end of Bishton Flyover. Steelwork (mainly TTCs) continues to a large Tensorex Anchor Portal at the eastern end of Bishton Flyover.
      • Masts (with SPS fitted) up between Bishton Flyover (including over it) and Llanwern West Jct (156m 20ch). 5 masts are currently up on the curve down from the flyover at its eastern end.
      • Over Bishton LC, ALL wires (2 Earths, 2 ATFs, and 4 C&C pairs) are now up. This continues to Somerton Rd Bridge on all lines.
    • A run of Earth Wires & ATF wires have been strung up on the Relief side (adjacent to the DR) between Llanwern Works East Connection & Llanwern West Jct. The AEW on the Up side now continues to past Lliswerry Pond, where Bird Flight Deflectors have been installed.
    • Just east of Somerton Rd Bridge, a Tensorex Anchor Portal has gone up.
    • 6-track portals, probably 'Vierendeels', going up around East Usk Yard (approx. MP157 1/2).
    • Between the Maindee Jcts (157m 74ch to 158m 16ch), a cluster of piles is in beside the Down Relief; these are complemented by masted piles on the Main side (adjacent to the Up Main).
    • Some SPS has now gone up between Maindee West & Maindee East; between Maindee West & Maindee North Jct (41m 03ch from the former Rotherwas Jct, just south of Hereford; the ELR for the southern part of the Marches Line), masts with TTCs on are also going up (as overruns) over the Marches Line; the termination mast & associated TTC are just north of signal "NT 1559".
    • The gap between the Maindee Triangle (Caerleon Rd Bridge) & East Usk Yard (Somerton Rd Bridge) is closing, with the erection of a number of back-to-back non-Series 1 TTCs in East Usk Yard.
    • At the AT Feeder Station at the Maindee Triangle, the tall masts have now gained their spanwires in readiness for the C&C below.
    • The first wire run has now gone up over the Usk Bridge; C&C is now up over the Down Relief from the Tensorex portal immediately east of the bridge, through P1 at Newport and up to Hillfield Tunnel.

    Newport
    • All canopies now cut back.
    • All steelwork in Newport is complete. Remaining SPS and Registration Arms are also being installed.
    • P1 wired.

    Newport - Cardiff
    • Plenty masts up around Gaer Jct (159m 32ch) north of Cardiff Rd Bridge (the B4237):
      • one by the Down Relief;
      • two by the Up Main (one of which is a boomed TTC with SPS);
      • three by the Gaer Jct - Park Jct Chord.
    • Around 6 piles are in adjacent to the Up Main between Gaer Jct and Ebbw Jct (160m 07ch); these will probably take masts for portal booms. One such boom appears to have gone in! Currently unknown if Alexandra Dock Jct Yard will be electrified.
    • Lots of steelwork up immediately behind the signal gantry adjacent to the Up Main at Ebbw Jct; this includes a full portal boom and a TTC acting as an overrun mast on the Ebbw Vale branch.
    • Almost all steelwork up from Ebbw Jct to Long Dyke Jct (169m 35ch) east of Cardiff Central; most SPS is now up too.
    • ATF wire installed on the Up Main between Lighthouse Rd & New Dairy Farm bridges. In the Up direction, the Earth Wire is in place until just before the bridge over the Ebbw River.
    • Wires up through Duffryn on both Main lines between the Ebbw River Bridge & New Dairy Farm Bridge, after which it switches to both Relief Lines.
    • Wires up across all 4 tracks between Pengam Jct (168m 40ch) & Marshfield.
    • About 4 or 5 portals have been erected just west of Pengam Jct; 5 masts are up on the Up side east of Rover Lane bridge, complemented by 2 on the Down side.
    • 1 run of C&C has gone up between Moorland Road Jct (168m 65ch) and Long Dyke Jct (169m 35ch) over the Reliefs; this is assumed to be a crossover as it crosses from one Relief line to the other.
    • At Long Dyke Jct, all masts are up, and the ATF wire is now up over the Relief Lines.
    • In the Pellet St area, a Mid Point Anchor Portal Boom has now gone up.
    • Just east of St. Mary's St Bridge, 2 hexagonal Tensorex Portals have been erected over all tracks.
    • Over the bridge over St. Mary's Street in Cardiff (just east of Central), and immediately to the west of the bridge, 5 portal booms spanning all tracks have gone up.
    • Similar bespoke mast foundations are going in just east of Bute St Bridge, near the junction with the line from Queen Street.
    • Splott Rd Bridge upgrade work now complete.
    Cardiff Central - Platforms 0-4 to be wired
    • Re-signalling completed. Platform 0 now open. 3 masts now up over P0/1 with TTC booms.
    • An Anchor Portal (of the hexagonal "TGBU" variety) has gone up over P2/3, just east of the canopies.
    • All large steelwork for P4 is now in position.
    • Most (if not all) TTC masts for P2 & the Up Through Line, along with P3 & the Down Through Line have gone up at the station. Some already have SPS.
    • Brackets appear to be in place on the coping stones on the Taff Viaduct (at the western end of the station).
    • Plenty piles up adjacent to Cardiff Canton. A number of these now appear to have masts on them, as seen from a westward-facing shot from Central. Portals next?
    • Brickwork Sidings to be increased in length (and electrified) to accommodate GWR Class 387s; the first masts and cantilevers have now gone up, with around 2 boomed TTCs and 2 STCs in position.
    • Proposed Limit of Wiring: Leckwith Loop North Jct (171m 55ch) at a guess.
    Swansea IEP Depot
    • New IEP Depot at Maliphant Sidings, Swansea now complete; all steelwork up. SPS, such as Insulators, Switchgear and Cantilevers have all been taken down, leaving only bare masts/booms in situ.

    GWML/SWML Blockade Works (2018):
    • 6/7 to 3/12: Reduced capacity (2 lines only) for wiring work between Newport & Cardiff Ctl.
    • 15/9 to 6/10, and 13/10 to 14/10: Bristol Parkway electrified.
    • 27/10 to 18/11, 24-25/11, 1-2/12: Filton Bank 4-tracked.
    • 11/11: Bristol TM to Bath Spa resignalled.
    • December blockades at Bristol Parkway & Didcot Parkway done.
    • Christmas-New Year Blockade at Severn Tunnel Jct done.

    GWML/SWML Blockade Works (2019):
    • 20/1/19, and 10/2/19: Newport to Bridgend blockaded (inc. Cardiff Central) for electrification work AT Cardiff Central; both done.
    • 17/2/19: Bristol Parkway to Newport blockaded for electrification work over the Usk Bridge at Newport; done.
    • 31/3/19: Newport to Bridgend blockaded (inc. Cardiff Central) for electrification work AT Cardiff Central; done.
    • 19/4/19 to 22/4/19: Bristol Parkway to Newport blockaded for electrification work in the Severn Tunnel Junction area; done.
    • 27/4/19 to 28/4/19: Bristol Parkway to Newport blockaded for electrification work in the Severn Tunnel Junction area; done.
    • 9/6/19: Newport to Bridgend blockaded (inc. Cardiff Central) for electrification work; done.
    • 16/6/19: Newport to Bridgend blockaded (inc. Cardiff Central) for electrification work.
    • 27/7/19 to 28/7/19: Bristol Parkway to Cardiff Central blockaded for electrification work.
    • 25/8/19 until 14:00: Bristol Parkway to Cardiff Central blockaded for electrification work.
    • 8/9/19 until 14:00: Bristol Parkway to Cardiff Central blockaded for electrification work.
    • 14/9/19 to 15/9/19: Newport to Bridgend blockaded (inc. Cardiff Central) for electrification work.
    • 22/9/19 until 14:00: Newport to Bridgend blockaded (inc. Cardiff Central) for electrification work.
    • 29/9/19 until 14:00: Newport to Bridgend blockaded (inc. Cardiff Central) for electrification work.
    • 13/10/19 until 14:00: Newport to Bridgend blockaded (inc. Cardiff Central) for electrification work.
    • 20/10/19 until 14:00: Newport to Bridgend blockaded (inc. Cardiff Central) for electrification work.
    • Details of any further OLE-related blockades will be added as they are made available.

    Berks & Hants Line (Reading-Newbury) - LIVE
    Electric trains in squadron service.
    • Wires from Oxford Rd Jct are LIVE to the limits of electrification (53m 42ch on the Newbury Lines, 38m 07ch on the Basingstoke Lines) since 0650 on 21/10/18.
    • Class 387s are now in service on Reading-Newbury services as of 31/12/18.
    • Within Reading West, piles for the new footbridge (under Murphy's remit) are in, but have been "decapitated" (i.e. shortened) and capped until a new footbridge solution is found.
    • New stairs from Reading West's Down platform to Oxford Rd are now in use. Work is ongoing for a permanent footbridge replacement.
    • Parapet work on Tilehurst Rd Overbridge has been completed on both sides, although Heras fencing was still in place at the end of April.
    • Platforms extended at Reading West, Theale, Aldermaston and Thatcham.
    • Newbury's new footbridge is now open; lifts in service as of 19/4/19.
    • Immunised signalling continues to about MP55 1/2. Bedwyn Turnback Siding now extended to accommodate 5-car IETs.

    Project Postponements
    • Thames Valley Branches:
      • Windsor & Henley deferred to at least CP6. The first few yards of the Windsor branch (Not the Henley Branch) have been wired as an overrun.
      • Marlow removed from scope of current programme. The first few yards of the branch have been wired as an overrun.
      • Southcote Jct to Basingstoke deferred to at least CP6. The first few yards of the Basingstoke Lines have been wired as an overrun.
    • Appleford LC to Oxford paused; if CP6 accounts allow for wiring to be extended to Oxford, it would be very likely to happen now that Oxford has been remodelled.
    • Catenary & Contact wires between Chippenham (Cocklebury Lane Overbridge) & Thingley Jct have been deferred until at least some point in CP6. All Large steelwork to remain, unless required elsewhere.
    • Bristol Temple Meads to Bath & Bristol Parkway paused, dependent on Bristol resignalling:
      • Taunton-Bristol Parkway completed over Easter 2018;
      • Bristol Temple Meads to Bath Spa completed in November 2018;
      • The WSM stretch from Flax Bourton Tunnel to Cogload Jct remains outstanding;
      • Track remodelling of Bristol East Jct remains outstanding;
      • Filton Bank 4-tracking completed Autumn 2018.
      • Further Signalling works due in 2019: Bath Spa due to be resignalled over the 11th/12th of May (done), and the 23rd of June. N.B. The Severn Beach Line will be closed for resignalling works on Sunday 7th of July.
    • Bristol Temple Meads' "Midland Shed" to be reopened in CP6 at the earliest, after Bristol resignalling is complete and the PSB is demolished.
    As always, do let me know if I've missed anything!
    (apologies to anyone who saw it in a state of source code chaos too).
     
  25. R G NOW.

    R G NOW. Member

    Messages:
    140
    Joined:
    25 Jan 2019
    Location:
    gloucester
    Slightly off topic, but what happened in Bristol yesterday, it was absolute chaos. Many trains got cancelled, even the ones from Great Malvern. Many people left on Gloucester station, not knowing when the next train to cam and Dursley would come. It was also made worse by the platform screens were not working also.
     
  26. JN114

    JN114 Established Member

    Messages:
    1,964
    Joined:
    28 Jun 2005
    Axle Counter Failure; route locked up at the east end of Temple Meads station. Only access to platforms 1 and 3. Nothing remotely to do with electrification.
     
  27. R G NOW.

    R G NOW. Member

    Messages:
    140
    Joined:
    25 Jan 2019
    Location:
    gloucester
    Thankyou for this answer. If as you say an axle counter being a pain, why did it take so long for engineers to replace it. My thinking is, that many things can cause these to stop working. 1 no wheel detection, due to seagull poo on it. 2 weather. 3. controlling enumerator unit in the yellow box. 4. wiring faults or a software module in a cabinet. Am I right??.
     
  28. adrock1976

    adrock1976 Established Member

    Messages:
    2,617
    Joined:
    10 Dec 2013
    Location:
    Glasgow
    Regarding the limit of wiring west of Cardiff Central, is the Brickyard Sidings on the route via Ninian Park and Leckwith Loop, or is it on the north side of Canton Depot?

    Also, is it in the plans to wire through Ninian Park station, or is that a Sennedd/Transport for Wales specific project in conjunction with the wiring of the Valley Lines network?
     
    Last edited: 16 Jun 2019
  29. JN114

    JN114 Established Member

    Messages:
    1,964
    Joined:
    28 Jun 2005
    I don’t know of a Brickworks sidings, Brickyard Sidings is on the North side of the mainline immediately west of Cardiff station.

    Ninian Park would at this stage fall under Valleys Electrification
     
  30. Tom Quinne

    Tom Quinne Established Member

    Messages:
    1,019
    Joined:
    8 Jul 2017
    Brickyard Sidings are west of Cardiff Central on the mainline opposite Cardiff Canton Depot.

    The Brickyard Siding, and Line A which are used to turn back stock will be wired along with line E which is the Line next to Canton Depot.

    There will no electrification from Cardiff Central via Ninian Park now.
     

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