Marsh Dykes

Closes 31 Oct 2020

Opened 9 Mar 2020


Update April 2020:

Please see the latest information regarding COVID - 19 here.

Flood defence works to take place in Thamesmead and Erith

Flood defence works are needed in this area to strengthen and improve tidal defences. The works are taking place across the following three locations in the area:

  • Great Breach Sluice
  • Abbey Sluice
  • Lake 5 Sluice

These three projects form the Marsh Dykes Sluices and this work is part of our 10-year capital investment programme to refurbish and improve existing tidal flood defences.

At each location, the Thames Estuary Asset Management (TEAM) 2100 will:

  • Install access equipment; including new access ladders and access covers
  • Replace existing flap valves
  • Upgrade safety equipment; platforms, handrails and install a davit arm (mechanical arm with a winch for lowering equipment)

This work will take place both land and river side enabling any future works to be carried out in a safe manner and allowing for easier and safer access for inspections.

These works will be starting on 9th March until May 2020. Working hours for each site will differ, however, the earliest start will be from 07:00 until 18:00, Monday to Friday.

Please see factsheets below for more information on each location


Any future updates will be posted on this site.

This is for public information.


  • Members of the public


  • Flood management