West Berkshire Council

The South East Thatcham Flood Alleviation Scheme Blog

The South East Thatcham Flood Alleviation Scheme is a project to build several surface water retaining earth embankments at Dunstan Green Park, public open space near Kennet School, and carry re-profiling of the Harts Hill Road and Francis Baily Primary School and Kennet School playing field.  The scheme aims to reduce surface water flood risk to 62 properties at the south east of Thatcham.

We'll upload news and weekly updates here as the scheme progresses.

For any questions, comments or further information, get in touch with the Highways Projects Team.

2016 - Flooding in Station Road, Thatcham

South East Thatcham FAS - Weeks 33 and 34

Written on: 26-11-2019

Floral Way

The contractor has begun laying the erosion control mattress at the top of the spillway which is anchored into the trench. Please refer to the week 31 and 32 blog for more information on the spillway.

Across the road from the main site, the foundation for the reinforced concrete outlet structure has now been laid and the assembly of reinforcement bars for the new structure is on-going.

wk33-34 Floral Way - Earthworks Progress
wk33-34 Floral Way - Earthworks Progress
 

Earthworks progress

 
wk31-32 Floral Way - Outlet structure south of Floral Way
wk31-32 Floral Way - Outlet structure south of Floral Way
wk31-32 Floral Way - Outlet structure south of Floral Way
wk31-32 Floral Way - Outlet structure south of Floral Way
Outlet structure construction - south side of Floral Way 

 

 

Dunston Green Park

The contractor has begun soil stripping at the northern end of the park. Here, a swale and an adjoining bund will be constructed.

wk33-34 Dunstan Green - Preparation works
wk33-34 Dunstan Green - Preparation works

Preparation works for a swale and a bund.

 

Siege Cross

The bund at the north end of the site are nearing completion and has been capped with flood defence markers.

The contractor has also began constructing a new footpath which will replace a section of the existing east-west footpath.

 wk33-34 Siege Cross - Earthworks progress
wk33-34 Siege Cross - Earthworks progress

 
Earthworks progress 
wk33-34 Siege Cross - Flood defence marker
wk33-34 Siege Cross - Flood defence marker
wk33-34 Siege Cross - New footpath construction
wk33-34 Siege Cross - New footpath construction
Installing flood defence markersNew footpath construction

 

 


South East Thatcham FAS - Weeks 31 and 32

Written on: 11-11-2019

Floral Way

The earthworks has progressed well despite the recent wet weather. The contractor has continued excavating surplus material from Floral Way to form the reservoir basin area.

Work has also started on the spillway on the downstream side of the dam. The spillway (or overflow channel) is a structure that provides for the safe and controlled release of excess water from the reservoir to the downstream area. The spillway will be formed using a reinforced grass mats to ensure that the structural integrity of the dam is not affected by erosion if overtopping were to ever occurred.

Work on the reinforced concrete outlet structure on the south side of Floral Way is now in progress. The excavations are completed and the reinforcement bars for the new structure are now being installed.

wk31-32 Floral Way - Earthworks progress week 31
wk31-32 Floral Way - Earthworks progress week 31
 

Earthworks progress at the end of week 31

 
wk31-32 Floral Way - Earthworks progress week 32
wk31-32 Floral Way - Earthworks progress week 32
 
Earthworks progress at the end of week 32 
wk31-32 Floral Way - Building the spillway
wk31-32 Floral Way - Building the spillway
 
Forming the spillway 
wk31-32 Floral Way - Outlet structure south of Floral Way
wk31-32 Floral Way - Outlet structure south of Floral Way
 
Work on the south side of Floral Way 
wk31-32 Floral Way - Outlet structure south of Floral Way
wk31-32 Floral Way - Outlet structure south of Floral Way
 
Steel reinforcement for the outlet structure - south side of Floral Way 

 

 

Dunston Green Park

The contractor has completed the flood defence wall and associated earthworks at the southern end of the Green.

There is an existing oil pipeline that runs through the park that required works to protect it before the one of the bunds that crosses the pipe could be constructed. This involved exposing the pipeline and installing a reinforced concrete protection slab over the pipe. This work was undertaken by a specialist contractor under the supervision of the Oil Pipeline Agency.

There are two swales that form part of the Dunstan Green scheme. One of the swales is situated at the north end of the park off Hart's Hill Road and the second one in Marsh Meadows. A section of the footway along Harts Hill Road has been lowered to allow water to flow off the road into the swale. This involved lowering British Telecom cables within the footway. The excavation of both swales are now in progress.

wk30-31 Dustan Green - Laying the final concrete coping
wk30-31 Dustan Green - Laying the final concrete coping
wk30-31 Dustan Green - Earthworks around the flood defence wall
wk30-31 Dustan Green - Earthworks around the flood defence wall

Brick cladding and coping for the flood defence wall.

 
wk30-31 Dustan Green - Oil pipeline protection
wk30-31 Dustan Green - Oil pipeline protection
wk30-31 Dustan Green - Oil pipeline protection
wk30-31 Dustan Green - Oil pipeline protection

Concrete protection for the oil pipeline.

 
wk30-31 Dustan Green - Building a swale
wk30-31 Dustan Green - Building a swale
wk30-31 Dustan Green - Building a swale
wk30-31 Dustan Green - Building a swale

Works to build a swale in the park - lowering of BT ducts.

 
wk30-31 Dustan Green - Building a second swale
wk30-31 Dustan Green - Building a second swale
 
Preparation works for the second swale in Marsh Meadows. 

 

Siege Cross

The contractor has continued to excavate material to create the flood storage areas at the north end of the park and to form the bunds which will impound most of the flood water.

 wk31-32 Siege Cross - Earthworks progress in week 31
wk31-32 Siege Cross - Earthworks progress in week 31

wk31-32 Siege Cross - Earthworks progress in week 32
wk31-32 Siege Cross - Earthworks progress in week 32
Earthworks progress in week 31Earthworks progress in week 32

 

 


South East Thatcham FAS - Weeks 29 and 30

Written on: 24-10-2019

Floral Way

The contractor has continued excavating surplus material from Floral Way. Excavation to build a reinforced concrete outlet structure for the culvert situated on the south side of Floral Way is still in progress and temporary traffic lights have been placed to safely carry out the work.

wk29-30 Floral Way - Outlet structure
wk29-30 Floral Way - Outlet structure
 

Work on the south side of Floral Way

 
wk29-30 Floral Way - Earthworks looking East
wk29-30 Floral Way - Earthworks looking East
 
Current earthworks progress - Eastern view 
wk29-30 Floral Way - Earthworks looking West
wk29-30 Floral Way - Earthworks looking West
 
Current earthworks progress - Western view 

 

 

Dunston Green Park

The contractor has completed installing the brick cladding to the front and back face of the flood defence wall and is now laying a concrete coping to the top of the wall.

One of the bunds proposed in Dunstan Green Park, which runs parallel to London Road, has been laid with flood defence markers to complete the installation.

The contractor has also begun works at the northern section of the park to build a swale.

wk29-30 Dunstan Green - Flood defence wall
wk29-30 Dunstan Green - Flood defence wall
wk29-30 Dunstan Green - Flood defence wall
wk29-30 Dunstan Green - Flood defence wall

Brick cladding and coping for the flood defence wall.

 
wk29-30 Dunstan Green - Bund marker
wk29-30 Dunstan Green - Bund marker
wk29-30 Dunstan Green - Bund marker
wk29-30 Dunstan Green - Bund marker

Flood defence marker laid at the top of the bund.

 
wk29-30 Dunstan Green - Building a swale
wk29-30 Dunstan Green - Building a swale
wk29-30 Dunstan Green - Building a swale
wk29-30 Dunstan Green - Building a swale

Works to build a swale in the park.

 

 

Siege Cross

The contractor has continued with the removal of surplus earth. The continuous wet weather has made the conditions on site difficult to start the bund work.

 wk29-30 Siege Cross - Earthworks progress
wk29-30 Siege Cross - Earthworks progress

wk29-30 Siege Cross - Earthworks progress
wk29-30 Siege Cross - Earthworks progress
Current earthworks in progress 

 

 


South East Thatcham FAS - Week 28

Written on: 14-10-2019

Although the continued wet weather has made the conditions on site difficult, the contractor has managed to make good progress across all three sites.

Floral Way

wk28 Floral Way - Current earthworks in progress
wk28 Floral Way - Current earthworks in progress

Current earthworks in progress

 

Dunston Green Park

The contractor has completed installing the brick cladding to the front face of the flood defence wall and is now laying bricks along the back face.

wk28 Dunstan Green - Flood defence wall
wk28 Dunstan Green - Flood defence wall
wk28 Dunstan Green - Flood defence wall
wk28 Dunstan Green - Flood defence wall

Installing brick cladding to the flood defence wall

 

 

Siege Cross

 wk28 Siege Cross - Installing new catchpits
wk28 Siege Cross - Installing new catchpits

wk28 Siege Cross - Installing new catchpits
wk28 Siege Cross - Installing new catchpits
wk28 Siege Cross - Installing new catchpits
wk28 Siege Cross - Installing new catchpits
 

Installing new catchpits outside the Kennet School fence

 
wk28 Siege Cross - Earthworks
wk28 Siege Cross - Earthworks
wk28 Siege Cross - Earthworks
wk28 Siege Cross - Earthworks
Current earthworks in progress 

 

 


South East Thatcham FAS - Week 27

Written on: 9-10-2019

Progress has been slow this week due to the recent wet weather. However, the contractor has continued excavating surplus material from Floral Way and Siege Cross Park.

Floral Way

wk27 Floral Way - Southern outlet structure
wk27 Floral Way - Southern outlet structure

wk27 Floral Way - Flow control structure
wk27 Floral Way - Flow control structure

Excavation to build a reinforced concrete outlet structure for the culvert situated on the south side of Floral Way.Flow control structure situated on the north side of Floral Way.

wk27 Floral Way - Current earthworks progess
wk27 Floral Way - Current earthworks progess

wk27 Floral Way - Current earthworks progess
wk27 Floral Way - Current earthworks progess

Current earthworks in progress

 

 

Dunston Green Park

wk27 Dunstan Green - Flood defence wall brick cladding
wk27 Dunstan Green - Flood defence wall brick cladding
wk27 Dunstan Green - Flood defence wall brick cladding
wk27 Dunstan Green - Flood defence wall brick cladding

Installing brick cladding to the flood defence wall

 

 

Siege Cross

 wk27 Siege Cross - Current earthworks progress
wk27 Siege Cross - Current earthworks progress

wk27 Siege Cross - Current earthworks progress
wk27 Siege Cross - Current earthworks progress
wk27 Siege Cross - Current earthworks progress
wk27 Siege Cross - Current earthworks progress
wk27 Siege Cross - Current earthworks progress
wk27 Siege Cross - Current earthworks progress

Current earthworks progress