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 - Week 42 and 43

Written on: 24-1-2020

Floral Way

Steel pins have been installed around the edge of the reinforced grass spillway to secure it in place until the grass has had time to fully establish.

wk42-43 Floral Way - Anchoring the turf mattress
wk42-43 Floral Way - Anchoring the turf mattress
wk42-43 Floral Way - Anchoring the turf mattress
wk42-43 Floral Way - Anchoring the turf mattress
Concrete and steel pins anchoring the turf mattress
wk42-43 Floral Way - Earthworks progress
wk42-43 Floral Way - Earthworks progress
Continuing excavation of the surplus material

 

Dunston Green Park

As part of the design of the swale off Harts Hill Road the carriageway is being realigned in order to divert surface water off the road and into the new swale. The contractor has dug out the old road surface and has begun installing kerbs to the new alignment.

wk42-43 Dunstan Green - Realigning Harts Hill Road
wk42-43 Dunstan Green - Realigning Harts Hill Road
wk42-43 Dunstan Green - Realigning Harts Hill Road
wk42-43 Dunstan Green - Realigning Harts Hill Road

Harts Hill Road (South)

wk42-43 Dunstan Green - Earthworks progress
wk42-43 Dunstan Green - Earthworks progress
wk42-43 Dunstan Green - Earthworks progress
wk42-43 Dunstan Green - Earthworks progress
Earthworks progress

 

Siege Cross

The contractor has not been able to progress the works at Siege Cross Park due to the extremely wet ground conditions. We now estimate the works will not be completed until the end of March.

 wk42-43 Siege Cross - Earthworks progress
wk42-43 Siege Cross - Earthworks progress

wk42-43 Siege Cross - Earthworks progress
wk42-43 Siege Cross - Earthworks progress
Earthworks progress 

 

 


South East Thatcham FAS - Week 38 and 39

Written on: 15-1-2020

The unusually wet weather in November and December has caused long delays to the completion of the works. The schemes currently under construction at Floral Way, Siege Cross and Dunston Green all involve the movement and placement of large volumes of earth and clay which the prolonged and heavy rainfall has made extremely wet and unworkable. The works were programmed to be completed by Christmas but due to the weather we are unlikely to be finished before the end of February as the ground will take some time to dry out before we can start work again.

Floral Way

The excavation of surplus material from Floral Way site is on-going. Steel reinforcing bars are being installed for a baffle wall to the outlet structure located on the south side of Floral Way. This wall will reduce the velocity of water leaving the reservoir during a heavy storm event. Gabion mattresses have been laid at the toe of the outlet structure to prevent water eroding the bed and banks of the downstream watercourse

wk38-39 Floral Way - Pre-grown turf mattress
wk38-39 Floral Way - Pre-grown turf mattress

Pre-grown turf mattress on spillway

wk38-39 Floral Way - Outlet structure
wk38-39 Floral Way - Outlet structure
 wk38-39 Floral Way - Outlet structure
wk38-39 Floral Way - Outlet structure
Outlet structure construction - south side of Floral Way

 

Dunston Green Park

The contractor completed lowering a section of an existing footpath at the northern end of the park which falls within the new swale.

There is a second swale which is to be situated in Marsh Meadows. A section of Harts Hill Road (North) has been realigned to divert the surface water off the road into the new swale.

wk38-39 Dunstan Green - Footway lowering
wk38-39 Dunstan Green - Footway lowering

Completing footpath lowering for the swale

wk38-39 Dunstan Green - Harts Hill Road (North) regraded
wk38-39 Dunstan Green - Harts Hill Road (North) regraded
 wk38-39 Dunstan Green - Harts Hill Road (North) regraded
wk38-39 Dunstan Green - Harts Hill Road (North) regraded
Harts Hill Road (North)

 

Siege Cross

 wk38-39 Siege Cross - Earthworks Progress
wk38-39 Siege Cross - Earthworks Progress

wk38-39 Siege Cross - Earthworks Progress
wk38-39 Siege Cross - Earthworks Progress
Earthworks progress 

 

 


South East Thatcham FAS - Week 36 and 37

Written on: 18-12-2019

Floral Way

The excavation of surplus material from Floral Way is on-going. The contractor has now overlaid the spillway with a pre-grown turf mattress which provides immediate soil stabilisation upon laying.

The excavation behind the recently constructed outlet structure has been partly backfilled and compacted. The backfill will be continue once the other works around the structure is completed.

wk36-37 Floral Way - Earthworks Progress
wk36-37 Floral Way - Earthworks Progress
 

Earthworks progress

 
wk36-37 Floral Way - Laying turf mattress
wk36-37 Floral Way - Laying turf mattress
wk36-37 Floral Way - Laying turf mattress
wk36-37 Floral Way - Laying turf mattress
Laying pre-grown turf mattress 
wk36-37 Floral Way - Outlet structure
wk36-37 Floral Way - Outlet structure
wk36-37 Floral Way - Outlet structure
wk36-37 Floral Way - Outlet structure
Outlet structure construction - south side of Floral Way 

 

 

Dunston Green Park

 A section of an existing footpath at the northern end of the park has been lowered where it crosses a proposed swale. The contractor has completed the excavations and has started to reinstate the path.

wk36-37 Dunstan Green - Lowering footpath
wk36-37 Dunstan Green - Lowering footpath
 

Footpath lowering for the swale

 
wk36-37 Dunstan Green - Earthworks progress
wk36-37 Dunstan Green - Earthworks progress
wk36-37 Dunstan Green - Earthworks progress
wk36-37 Dunstan Green - Earthworks progress
wk36-37 Dunstan Green - Earthworks progress
wk36-37 Dunstan Green - Earthworks progress
 
Earthworks Progress 

 

Siege Cross

Due to the continuous wet weather the construction of the bund at the northern end of the park has been delayed. However, the contractor has been able to continue the removal of surplus material from the site. A new land drainage pipe and catchpit, and an inlet structure have also been installed at the northern end of the park.

 wk36-37 Siege Cross - Earthworks progress
wk36-37 Siege Cross - Earthworks progress

Earthworks progress
wk36-37 Siege Cross - New land drain installation
wk36-37 Siege Cross - New land drain installation
Installing a new land drainage system

 

 


South East Thatcham FAS - Week 35

Written on: 9-12-2019

Floral Way

The contractor is continuing to excavate surplus material from Floral Way. The walls to the reinforced concrete outlet structure on the oppose side of Floral Way have been completed.

wk35 Floral Way - Earthworks progress
wk35 Floral Way - Earthworks progress

Earthworks progress

wk35 Floral Way - Outlet structure
wk35 Floral Way - Outlet structure
 wk35 Floral Way - Outlet structure
wk35 Floral Way - Outlet structure
Outlet structure construction - south side of Floral Way

 

Dunston Green Park

 The contractor has completed stripping the topsoil at the northern end of the park ready to construct another earth bund, which will hold back flood water.

wk35 Dunstan Green - Topsoil stripping
wk35 Dunstan Green - Topsoil stripping

Topsoil stripping for the bund

 

Siege Cross

The bunds in the north end of the park are being formed and precast concrete edging blocks laid along the crest of the bunds to protect them in the future.

The contractor has begun constructing new footpaths on the east side of the park which join the new footpath running east-west, which is also under construction.

 wk35 Siege Cross - Earthworks progress
wk35 Siege Cross - Earthworks progress

Earthworks progress
wk35 Siege Cross - Earthworks progress
wk35 Siege Cross - Earthworks progress
Earthworks progress
wk35 Siege Cross - New footpath construction
wk35 Siege Cross - New footpath construction
 wk35 Siege Cross - New footpath construction
wk35 Siege Cross - New footpath construction
New footpath construction
wk35 Siege Cross - Flood defence markers
wk35 Siege Cross - Flood defence markers
 wk35 Siege Cross - Flood defence markers
wk35 Siege Cross - Flood defence markers
Installing flood defence markers

 

 


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