This description begins at the north end of the route and travels south.
Travelling southbound, the Bypass would have started on a widened A503 Camden Road, where a dual-carriageway would rise from the middle of the road. Below it, sliproads would allow traffic on Royal College Street to reach the A503 to and from the north. The road would then turn west, taking out the south side of Bonny Street, to run elevated above ground level to clear Camden Street. Here the North Cross Route would run on the upper deck above it. Sliproads would have run up and down to connect the two, allowing east-to-east and west-to-west movements between the two roads.
The short double deck section would end as the Bypass was to turn south-west across Camden High Street. South-facing sliproads would allow traffic to and from central London to access the North Cross Route to the west and the A502 Chalk Farm Road. This part of the route, with its sliproads overhead, would have run above the Regent's Canal at Camden Lock, obliterating what has since become one of London's most popular waterside gathering places.
Now a dual three-lane road, the bypass would turn south to run along the east side of the mainline railway to Euston. In order to preserve the grand crescent of terraced houses on Oval Road and Gloucester Crescent, the Bypass was to run below ground level, with Oval Road overhanging the southbound lanes, and a short cut-and-cover tunnel under Delancey Street.
Rising back to ground level, the Bypass would require the demolition of the southernmost block of buildings on Mornington Crescent, turning to cross the railway at a widened bridge. A new flyover would be built northbound to carry traffic from central London into Camden Town. The A400 Hampstead Road would then be widened to allow six traffic lanes to reach the Euston Underpass just to the south.
Under the radar
This scheme couldn't fail to be controversial. Despite following a railway for much of its length, it called for two of Camden's most pleasant and regal crescents to be defaced. By rights it should have caused a storm, but there are surprisingly few references to it. Most likely it always lived in the shadow of its larger relative, the North Cross Route.
The Bypass also seems to have been relatively short-lived: it was published, along with the whole of the North Cross Route, in an engineering report by consulting engineers Travers-Morgan in August 1966. The 1965 draft version of the same report, however, makes no mention of it, and shows a completely different arrangement, with the North Cross Route interchanging directly with the A503 Camden Road, and the latter realigned east of the town centre.
That would seem to indicate that the Bypass was a relatively late addition to the proposals, being drawn up in the space of a year between 1965 and 1966. It vanished, along with the rest of Ringway 1, in 1973, which means at most it was a proposal for some eight years. Perhaps that's why it never had the chance to cause as much controversy as one might expect. Nonetheless, one element of it was built and survives to this day: on Hampstead Road, about half of the distance from the Euston Underpass to Mornington Crescent was widened in the 1960s in exactly the manner described in the Camden Town Bypass plans, and today exists as a three-lane dual carriageway.
- Route map contains OS data © Crown copyright and database rights (2017) used under the terms of the Open Government Licence.
- Artist's impressions of Camden Town Bypass is from "New Roads in West and North Central London", GLC, 1965.