|Location Map ( geo)|
|To:||Pease Pottage (TQ265336)|
|Distance:||16 miles (25.7 km)|
|Meets:||M25, A23, A264|
|Route outline (key)|
Truncated London – Crawley Motorway. The motorway terminates at junction 7 at the northern end; it was planned to extend into London, with its terminus being on Ringway 2, the motorway replacement for the A205 South Circular Road.
The section north of the M25 was opened in 1974, with the rest of the M23 opening in 1975.
Smart Motorway Upgrades
Upgrades in 2019/2020 made many changes to the M23, these are:
- All Lanes Running Between J8 and J10 with Variable Speed Limit. (Total 4 running lanes)
- Gatwick Spur Westbound All Lanes Running with fixed speed limit of 50MPH. (Total 3 running lanes)
- Junction 8 (with M25). Non-standard 2 lane drop when heading northbound, will be 6 lanes wide at diverse.
- Junction 9 (M23 Spur to Gatwick). Lane Drop and Lane Gain in both directions.
- Junction 10 (A264 & A2011). Lane Drop Southbound and Lane Gain Northbound as end of smart motorway scheme.
- 12 New Emergency Areas (ERA)
- Emergency vehicle turnaround point between J8 and J9.
- 10 New Superspan Gantries
- 23 New Cantilever Gantries
The Hooley Interchange is a junction between the M23 and A23. It is also the northern terminus of the M23, although that motorway was supposed to head further north. As a result, the junction is unfinished, leaving two unused flyovers over the A23.
The Merstham Interchange is the junction between the M25 and the M23. It is one of three four-level stacks in the United Kingdom. The junction is only a mile south of the terminus of the M23, the Hooley Interchange. Consequently, very little traffic heads north from here.
Pease Pottage services
Pease Pottage services are located at the extreme southern end of M23, and is one of the smallest MSAs on the British motorway network.
|Link||2002 AADF||2006 AADF||2010 AADF||2014 AADF|
Relating to Smart Motorway
- M23 J7 Hooley Interchange (photos taken April 2004)
- M23 Abandoned/Unused Bridge (photos taken April 2004)
- Hooley Interchange (M23 J7) Revisited (photos taken May 2008)