The work is focused on improving capacity, customer information, safety and accessibility.
The stations that will be upgraded are:
• Chafford Hundred: Improvements include a new station canopy, platform widening and shelter. Work will start in January 2012 to be completed in June 2012.
• Chalkwell: Improvements include new cycle parking, booking hall redecoration including a new automatic door, refurbishment of the footbridge and a new shelter. Major works have started to be completed in March 2012.
• Laindon: New footbridge and two new lifts will be installed at the station. Works have started and will be completed in June 2012.
• Ockenden: Waiting room redecoration including opening up to the platform with an automatic door, lighting on footbridge, external refurbishment of station building and fitting in a new toilet block are among the improvements. Major works have started and will be completed in March 2012.
• Tilbury Town: Two new lifts will be attached to the existing footbridge and the derelict café will be replaced with a smarter public area. Major works have started and will be completed in May 2012.
Network Rail route managing director Dave Ward said: "This investment will make a big difference to passengers and is part of a wider effort to build a bigger, better railway. As well as providing a safe, punctual and reliable train service we must give passengers a better journey experience. These improvements will deliver safer and more modern stations with enhanced facilities for passengers."