Brighton Mainline Improvement Project - Projects, Worksites and Locations - Forum

Brighton Mainline Improvement Project

This weekend marked the start of the first main phase of the Brighton Mainline Improvement Project, after an initial Sunday possession for preliminary work back in July. Originally this was scheduled to comprise two 10 day possessions of all lines from Three Bridges to Brighton/Lewes in the October 2018 and February 2019 Half Term weeks. This blockade approach was originally justified as saving 84 successive weekend possessions. However, in July the October blockade was dropped, apparently due to the disruption BML commuters had encountered due to the Thameslink timetable change fiasco.

Instead, commencing on Saturday (and surprisingly trains ran yesterday), a series of weekend possessions are now scheduled comprising closures every weekend in October, and three weekends in November. The February blockade is still scheduled.

There is considerable publicity included a dedicated website and Twitter account, plus a poster campaign featuring a Seagull in full PPE!

From what I can deduce, considerable works are to be undertaken to improve reliability. These I believe include:

i). Replacement of Balcombe Tunnel North Junction;

ii). Repairs to track, signalling and infrastructure in Balcombe Tunnel. The latter is particularly problematic as part of the tunnel lining has I understand, failed, resulting in units having muddy water streaked down them having passed through the tunnel following rainfall;

iii). High Output Ballast Cleaning at various locations;

iv). Track replacement, power supply improvements and re-signalling at Clayton Tunnel;

v). Replacement of Preston Park Junction. Interestingly this appears to potentially include re-modelling as opposed to like for like renewal.

In preparation for this work, LWR was dropped the week before last from a point inside Clayton Tunnel to just north of the A273 overbridge on the up line, whilst Conductor rail has been dropped from Keymer Junction to south of Burgess Hill on the down line, and it appears from Balcombe to Balcombe Tunnel on both up and down lines as well.

The work this weekend comprised the HOBC from Sevington working at Balcombe station, work on the on-going Southern Power Supply programme at various locations south of Haywards Heath (using the entire Sonic Rail fleet including brand new 910137 straight from GOS) and seeing what I believe was the debut of Lundy Projects machines in Sussex, being used for piling of signal bases inside Clayton Tunnel.

As this is right on my doorstep, I will keep a close eye on things - much to the annoyance of my Wife no doubt!

This weekend saw the first of four consecutive weekend closures for this project. I wasn't local on Saturday, but from observations yesterday the work this weekend included the following:

a). A very short relay (rail and ballast only - sleepers were in the main reused) on the up line at the north end of platform 2 at Preston Park. This had been a problem location for some years with a significant wet bed which despite several previous weekend in-situ dig outs had reoccurred. One works train from Eastleigh and a tamper from Three Bridges appeared Sunday for this job, with at least three RRV's from TXM which went on track at Montpelier Sidings in Brighton.

b). Work in Clayton Tunnel, I believe cable delivery, using a PC138US and a couple of trailers supplied by Readypower (on tracked at Hassocks).

c). Track maintenance between Hassocks and Keymer Junction, using a pair of L & W Komatsu PW160's (one unidentified so far), on tracked at Keymer Junction.

d). Signal Maintenance in Burgess Hill Cutting (using TRS914 on tracked at Keymer Junction).

e). A complete re-rail (four rails) including new Insulated Block Joints at Junction Road Level Crossing, Burgess Hill. This necessitated a full road closure all weekend and removal of all Strail panels. I believe the same L & W machines were used on Saturday, as were used on other works on Sunday.

f). Power upgrade works north of Keymer Junction (using a Sonic Rail Doosan and 2 x trailers) plus a structures exam at Vale Viaduct using an SRS lorry, all completed by Sunday lunchtime with all machines back in Keymer Junction AP.

g). Troughing work at Haywards Heath Cutting (hand trollies only).

h). Conductor rail renewal (both lines) from south of Balcombe Station towards Haywards Heath. This used 2 x Readypower Doosans and 2 x Trailers, the scrap 30ft lengths being moved to Haywards Heath car park yesterday afternoon.

i). Works north of Haywards Heath and around Copyhold Junction, seemingly with no plant involved.

I understand next weekend there are works at Lewes Tunnel and between Copyhold Junction and Balcombe amongst others. Further LWR has been delivered north of Preston Park (both sides) and it appears some signal heads at Haywards Heath may have been replaced as well.

This weekend appeared to have less work undertaken from what I observed. The works undertaken during the 52 hour possession included:

a). Power/signalling upgrade works off Patcham Waterhall using Sonic Rail 910095 and a couple of trailers, one hired in from TRS. I believe this included moving a large amount of palletised materials to Pangdean sub-station.

b). Ongoing works on ventilation system and drainage improvements inside Clayton Tunnel.

c). More power/signalling upgrade works off Keymer Jct. AP again using Sonic Rail 910100 and a pair of trailers, one hired in from TRS and unloading cables at least in part. This was very mobile, working south of Burgess Hill on Saturday but it had reached Haywards Heath by Sunday morning. Also further signalling work in the Burgess Hill area used a pair of TRS Evo's although only one was used and this appeared only for a few hours on Saturday.

d). Work inside Haywards Heath tunnel, I believe again signalling related. However this also included engineers accessing the northern portal masonry by ladders as well.

e). Track maintenance at Copyhold Junction, using a pair of L & W Contractors PW160's and trailers which had been delivered to Haywards Heath Car Park. This included replacement of at least one 60ft switch rail.

f). Ballast cleaning using the HOBC from south of Balcombe station to Ouse Valley Viaduct, on the down line. The HOBC was in residence all weekend having arrived from Sevington and I believe was almost exclusively loaded with new ballast on arrival, spoil being discarded by side conveyors into JNA's which arrived in three trains from Eastleigh. The HOBC tamper also appeared from Tonbridge whilst Quattro 238 and trailer 278 were present in support at Wellgrove Woods, although I don't believe were actually used.

g). I believe at least one RRV was on tracked at Parish Lane, Pease Pottage this being visible from the M23. However as this is remote, and parking is near impossible within a mile of the AP, I didn't check this out.

h). On the Lewes branch, Streat Green Bridge (between Spatham Lane and Plumpton) was replaced. I understand this involved replacement of the wheel timber deck with a new concrete bridge. The work site is inaccessible, the bridge itself being little more than a cattle track. However a temporary road has been laid across fields accessed from Streat Lane and a large mobile crane was used to swing the new deck in. A tamper also appeared in the afternoon from Three Bridges running via a complex route including reversals at Littlehampton, Brighton and Southerham Junction.

Additionally, a press release to residents locally suggested that cables were to be laid between Cooksbridge and Plumpton, with the machinery accessing the line at Hamsey Level Crossing. However this work appeared to have been cancelled as nothing was actually present.

This weekend saw the following works undertaken:

a). Track maintenance around Brighton/Preston Park which used the Brighton MDU core machines, L & W Contractors RRV126/127 and a pair of trailers on tracked at Brighton Montpelier Sidings.

b). Further re-signalling/power works off Patcham Waterhall using Sonic Rail 910100 plus two trailers one of which was again cross hired from TRS.

c). Track replacement on the down line from the Northern Portal of Clayton Tunnel, south. This used seven engineers trains from Eastleigh, one of which I believe included a TRM (but that's not confirmed), Tamper DR73918 and 10 Readypower RRV's along with two trailers and two ballast brushes all on tracked at Hassocks.

d). Further re-signalling work between Burgess Hill and Haywards Heath, this week using Sonic Rail 910095 and two trailers, plus TRS927 all on tracked at Keymer Junction.

e). Conductor rail renewals from Balcombe Station to Balcombe Tunnel. This used Readypower FR674, along with a pair of trailers and numerous attachments including a Teroc Rail Shear along with two Network Rail ATMW's, 910015 (which may not have been used) and 910020 all of which were delivered to Haywards Heath Car Park.

f). I believe works around Balcombe Junction but again I didn't get out there.

g). On the Lewes spur, further bridge replacement follow up works at Streat Green Bridge again using a mobile crane. In addition, rail defects were resolved at Chillington using L & W Contractors RRV142 and a trailer on tracked at Cooksbridge plus I believe re-signalling works around Cooksbridge and Hamsey.

In addition overnight work is also being undertaken in the week between 1am and 5am. This has included replacement of a large number of conductor rail "pots" on the up line through Burgess Hill in the last week.

Last weekend saw the final two day possession (for now) and works undertaken included:

a). Further track maintenance in the Brighton/Preston Park area using an L & W Contractors PW160 and trailer on tracked at Brighton, Montpelier Sidings.

b). Further re-signalling works from Patcham Waterhall including, I believe, installation of a number of cable management sleepers. This used a Sonic Rail Doosan plus a couple of trailers one again cross hired from TRS.

c). A second weekend of track replacement inside Clayton Tunnel. A number of works trains again attending and 9 x Readypower RRV's along with three trailers and a brush were used on this, on tracked at Hassocks.

d). Further re-signalling works north of Keymer Jct. These again used a Sonic Rail Doosan plus a pair of trailers, along with TRS927 again all on tracked at Keymer Jct.

e). Drainage work at Haywards Heath cutting, including diamond drilling works. No OTP was involved in this.

f). A very large conductor rail replacement job from Haywards Heath (north end) all the way to Ouse Valley Viaduct. This used three Readypower Doosans, three trailers plus assorted attachments along with a Network Rail Flashbutt welder, again all on tracked at Haywards Heath Car Park. Incidentally, I now understand that the works over the previous weekend included conductor rail replacement across Ouse Valley Viaduct, using at least a pair of Readypower Doosans but I did not see this myself.

As a consequence, I believe nearly all conductor rail from the north end of Haywards Heath to the southern portal of Balcombe Tunnel has now been replaced.

g). On the Lewes spur, further bridge replacement works at Streat Green Underbridge. This weekend a Pro-Rail Kobelco SK135 and trailer were used all weekend, delivered to Plumpton Level Crossing. I understand that over the weekend of 13th/14th October, the works here also used the Pro-Rail Hitachi and a trailer although I missed those myself.

h). Re-signalling work in the Cooksbridge area which didn't use any OTP.

i). A detailed inspection at Lewes tunnel, including abseilers.

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