Construction of Flood Embankment

This project was to construct a new flood embankment to protect domestic properties and an electrical sub station adjacent to the River Roding.

The location for the new embankment from the river below the trees in the background around the corner of the electricity substation and up onto the higher ground where this photograph was taken.
The reverse view looking from the river.
The higher ground in the park where the embankment is to terminate.
Clay based material is imported and the embankment is constructed.
A man hole on the line of the embankment is raised to the new height.
The imported material is tracked in to compact it as well as rolled using a sheeps foot roller shown here.
The embankment comes round the corner and up onto the higher ground where it will terminate.

The line of the embankment was set out and the topsoil stripped and set to one side. The clay based material was imported and keyed into the existing ground and then compacted in layers using the tracked excavator and vibrating sheeps foot rollers.

A Thames water storm water manhole was located within the line of the new embankment and so this was raised as part of the works along with a headwall and flap valve at the termination of the embankment at the river to drain any water accumulated on the back slope.

Once the structure was completed it was covered with imported topsoil and seeded with grass.

Warning markers identifying the structure as a flood embankment were also set in concrete along the top of the embankment.

CLIENT DETAILS

The Environment Agency

Apollo Court, Hatfield

LOCATION

Woodford Green, London

MATERIALS USED

Grass seed
Imported clay-based soils
Man hole rings and cover
Topsoil

Better Water,Better World

Construction of Flood Embankment

The Environment Agency

Better Water,
Better World