to Guy Gorton's website.
Special edition covering collapse of tunnel at Gerrards Cross,
June 30, 2005
length of the tunnel built to carry a Tesco store over
the railway at Gerrards Cross collapsed on the evening
of June 30, 2005. The area for the store itself
is not affected. The collapsed section is under
part of the area being filled to make the car park.
page illustrates the situation on the day following
the collapse and also serves as 'home' for other pages
related to the collapse.
By request, a diagram of the site has been added here,. Use your browser's back button to return here.
|July 1, 2005, 5.30am
tunnel segments interlock with each other with a
stainless steel facing. The steel facing and the
concrete behind it of the segment on the left seems to
have been forced down, thus releasing the segment that
should be present on the right.
vantage point and a small ladder have allowed capture
of additional pictures of the collapse from the north
broken end with almost surreal mounds of material.
Judging from the height of
fill over the tunnel, this is presumably where the
of the pressure plate between opposing segments.
The pictures that follow show the construction method, and may help to put the collapse pictures in context.
2005. From the southern side.
I photographed the last few segments being placed at 2am on June 8th. Despite some blur, the overlap and male/female connection is clearly visible.
positioning the base of the segment, with careful
precision, in the groove of the base, it is
lowered towards its mate. When it is within
a few inches, the crane driver drops the segment
hard against its mate. The thump is
considerable and in one instance I watched was
repeated several times, seemingly to nudge the
other segment into a better position.
to the top here.