"Offramp" wrote in message
ps.com
On Jun 8, 6:23 am, James Farrar wrote:
On Fri, 08 Jun 2007 00:57:55 -0000, "

wrote:
What sections are above street level?

Most of it.

From memory:

Bakerloo north of Queen's Park
Central west of White City and east of Stratford
Circle - none
District west of Earl's Court and east of Bow Road
East London south of Surrey Quays and around Whitechapel
Hammersmith & City west of Paddington and east of Bow Road
Jubilee north of Finchley Road and east of Canning Town
Metropolitan north-west of Finchley Road
Northern north of Golders Green, north of East Finchley and around
Morden
Piccadilly west of Baron's Court and north-east of (???)
Victoria - none
Waterloo & City - none.

Corrections from the group very welcome, of course. Thanks to David
for teaching me what "El" means... :-)

That is well done from memory - but I think he means 'above street
level', like the Chicago EL
I know a few places:
The H+C Line around Ladbroke Grove
The Northern Line near Mill Hill East
The Piccadilly Line around Hounslow.
I am sure there are others.

It's rare for London Underground lines to run at street level,
particularly at stations. So, the non-underground sections (more than
half the network) are almost entirely elevated (ie, on viaducts) or in
cuttings, probably more of the former than the latter.

They can switch quite rapidly. For example, the Picc is on a viaduct at
Alperton, drops to a rare ground level station at Sudbury Town, is in a
cutting by Sudbury Hill, is back on a viaduct by South Harrow and is in
a shallow cutting by Rayner's Lane (actually, it's more of a case of the
roads being raised above it).