A6144(M) motorway ceased being a special road on 25 May 2006 losing its motorway status. It is now subject to a 50 mph (80 km/h) speed limit and is classified as the A6144. The road through Sale retained the A6144 number, meaning that there are two branches (and two junctions with the M60 motorway) with the same road number. Despite losing motorway status, the road still prohibits pedestrians, cyclists, and horse riders. Following the change of signage on 25 May 2006, two marker posts, the A6144(M) confirmation sign and a lay-by warning sign are privately preserved. A6144(M) motorway The A6144(M) was a
Dartford Crossing Transport, Kent and Essex County Councils obtained government approval to charge tolls in 1960, before opening. The two-lane bore tunnel opened to traffic on 18 November 1963; the total project cost was £13 million (equivalent to £ million in ) and it initially served approximately 12,000 vehicles per day. The toll was originally two shillings and sixpence, equivalent to 12.5p post-decimalisation, and approximately equivalent in purchasing power to £ in . The Dartford Tunnel Act 1967 gave Kent and Essex County Councils authority to change the tolls, and in December 1977, the toll was raised from 25p to 35p for