Post by Recliner Post by Recliner Post by Roland Perry Post by Recliner Post by Roland Perry
The Bank branch of the Northern Line will shortly be closing for a few
months, to allow the commissioning of the new, wider southbound
platform, built slightly to the west of the narrow old platform, which
dates from 1900. The old platform will become a concourse between the
platforms. There are four new passages that will connect the new
platform to the old platform tunnel, which have already been built.
I took some pictures today of that platform as it exists just before closure.
A repeat of what happened at Angel and London Bridge about 20yrs ago.
Yes, and one or two others as well, I think. Euston?
Maybe, I don't recall.
But I was on a behind-the-scenes tours taking in both Angel and London
Bridge, soon after their conversion. The latter location included
stretches of the disused C&SLR alignment all the way from where the 1900
re-alignment diverges south of London Bridge, the disused platforms
above the 1900 re-alignment, and to the edge of the river where the
tunnels to King William St were sealed off in WW2 as a flood prevention
That tour could not be repeated today because the Jubilee Line cuts
across the old C&SLR station at London Bridge.
And I'm not sure if the old London Bridge station building above is
still in existence (or even at Angel, where the rebuilding involved
moving the lift-accessed entrance a few hundred yards round the block
to a record-breaking-escalator accessed entrance).
During that tour we also went to the Northern Line control centre
somewhere near Euston.
It's shame it was a little before digital photography or I'd have lots
Ah, here's the original Angel Station: <https://goo.gl/maps/x62JDRywxN1A
bUus6> and London Bridge: <https://goo.gl/maps/wiEGjT1iPRoAnMFw8>
obliterated soon after then, by redevelopment.
I've never worked out why the original CSLR switched to right-hand running
for the section from London Bridge to the original terminus at King Willam
It switches over under the junction between Borough Rd and Newington
Causeway, just north of E&C Station.
Post by Recliner
which continues today past Bank.
That's the new alignment from a few hundred yards south of the current
London Bridge Station (as built, the C&SLR didn't originally have a
station at LB).
Well, new in 1900! But I wonder why they retained right-hand running as far
as Bank when they closed the King William St terminus section, replacing it
with the new route through Bank?
The right-hand running is initially inherited from the KWS formation as
a result of the line to Bank breaking away and wrapping underneath about
half way between Borough and London Bridge. It's possible [see below] to
walk along the old KWS tunnels south from London Bridge Station to the
point where the tunnels diverge, and see the Northern Line trains
Post by Recliner Post by Recliner
I suppose it must have had
something to do with the tight curves on the climb into King Willam St.
I'm not sure why, because KWS was built with a single line (and a
platform either side) the two tunnels converging under Old Swan Pier
just off the north bank of the river, at the end of Swan Lane; the last
remnants of which demolished as recently as 2012.
At Stockwell they had two tracks and a fairly conventional scissors
I wonder if the requirement to follow the street plan above forced the
right-hand running when the London Bridge to Bank section replaced the old
...The Northern Line tunnels then cross the river a little east of the
bridge (rather than west), as far as I'm aware to miss the foundations
of the bridge, before rejoining King William Street where it crosses
Lower Thames Street. Presumably they didn't want to flip the tunnels
over, while under the river or in the short distance north of the river
before Bank Station.
Post by Recliner Post by Recliner
I did a visit to the latter a few decades ago. I think we walked under the
river through the stalagmites.
There were visits which I think were something to do with the occupants
of the building now on the site of KWS station.
The modern building occupants had to let us in, but they didn't organise or
run the tour. That was done by LU or the Museum. I booked through LURS.
We were taken on a private tour by someone in senior middle-management
of the line, who had the keys and the historical information. We didn't
question his authority to do so, and it didn't feel completely
"unofficial". The tour also included (possibly as its main component)
the new Angel Station, and the old Angel Station building, as well as
the control room at Euston.
Post by Recliner
The tunnels under the Thames were only sealed off at the south bank,
because the flooding threat was to the 'new' London Bridge Station,
which is about 20ft underneath the original one.
Yes, there's no connection to the current LU network from the King William
St station and tunnels, so it doesn't matter if they flood. There were WWII
posters in the station presumably dating from its use as a bomb shelter
(when it had already been closed 40 years!). I wish I could find the photos
I took on the tour, but they wouldn't be a patch on what's possible with a
modern digital camera.
I think the bomb shelters on that stretch of the line were accessed from
separate street entrances, rather than the tube stations. But I'd have
to confirm that.