http://maps.google.co.uk/maps?hl=en&....36 ,,1,11.01

At the point where the road used to go over the canal basin, the road still
has a lengthy bump, but the pavements are banked up a foot or two higher at
the centre. I can't see any reason why the pavements would have been banked
up over the road when the canal basin still stretched under the road. It
looks as if the road used to be higher than now, but I can't imagine that it
would be possible to lower a road on a bridge while leaving the bridge
intact. So the part of the bridge carrying the road was demolished and the
gap beneath it filled in with earth, and the road reinstated at a lower
level.... the parts of the bridge carrying the pavements were left intact,
and still carry the pavement some way over the lowered road. But that seems
bizarre too.... surely if you're going to demolish the road part of the
bridge, you'd demolish the pavement parts too.

In message , Basil Jet
writes

At the point where the road used to go over the canal basin, the road still
has a lengthy bump, but the pavements are banked up a foot or two higher at
the centre.

At a guess, there are utilities running under the pavement that were too
expensive to move - sewer pipes and the like.

In fact, when the canal basin was part filled-in in the 1980s, a large
electricity substation was built adjacent to the bridge. Islington have
a masterplan for redeveloping the area, which mentions the difficulties
caused by high-voltage cables (protected by a grid of pre-cast concrete)
in the immediate locality of the bridge. These include "branches feeding
a network of cable routes running below City Road".
--
Paul Terry

Paul Terry wrote:
In message , Basil Jet
writes

At the point where the road used to go over the canal basin, the
road still has a lengthy bump, but the pavements are banked up a
foot or two higher at the centre.

At a guess, there are utilities running under the pavement that were
too expensive to move - sewer pipes and the like.

Thanks - I always forget the utilities.

Speaking of utilities, I just found this attractively designed site about
the drains of Toronto.
"Angels Of The Underground" http://www.aotu.ca/index2.html

Back to our Angel of the Underground, does anyone know the purpose of the
octagonal building bearing LU signs at the junction of Goswell Road and City
Road, and when it was built?
http://maps.google.co.uk/maps?hl=en&...77. 56,,1,0.8.

In message , Basil Jet
writes

Back to our Angel of the Underground, does anyone know the purpose of the
octagonal building bearing LU signs at the junction of Goswell Road and City
Road, and when it was built?

I'm pretty sure it's the surface exit from the emergency stairs at Angel
station, constructed in 1992 when the station was rebuilt with separate
platforms instead of the former narrow island platform. It's close to
the old station entrance, which was almost opposite.
--
Paul Terry