Heathwall Pumping Station
At Heathwall Pumping Station the team is working on sinking the two combined sewer overflow (CSO) shafts that will eventually capture the sewage that currently flows into the Thames on average every week.
Both shafts are being excavated in the same way. A cutting head is installed around the outline of the shaft, before large concrete rings are placed on top and pushed down approximately 1 meter using jacking gallows. The material within the shaft is then dug out, before the next ring is installed.
Our first shaft has been excavated using this method to 20m deep in land. They will now excavate down before installing further rings below the existing structure. Once complete, this shaft will be 47m deep.
The team have started excavating the second shaft within the cofferdam, a dry working area built into the river. 8 rings have currently been sunk into the ground and the area within excavated. This second shaft will be 34m deep once complete.
All muck from the second shaft will be removed by barge following the completion of our ‘campshed’ structure, taking around 50 vehicles off the road with each barge.
What are our working hours?
Standard working hours
08:00 - 18:00 Monday - Friday
08:00 - 13:00 Saturday
Extended working hours
We currently have extended working hours for construction of the shaft
18:00 - 22:00 Monday - Saturday
There is a mobilisaton period of up to one hour both before and after the working hours plus maintenance periods on Saturday 1-5pm and Sundays 10am-4pm.
There will be 24-hour working during the construction of the Heathwall/South West Storm Relief connection tunnel
Loading of barges and barge movements would take place within standard hours
The date for our next CLWG for this site will be on Thursday 5 September 2019, at our Kirtling Street site from 19:00 - 21:00.
Previous minutes are available upon request, please contact the Tideway Helpdesk on 08000 30 80 80 or email [email protected]
- All static machinery and plant is screened or enclosed
- Vehicle movements outside of standard hours are restricted
- Hoarding has been erected on the site boundaries
- Push (silent) piling is used wherever possible
There are lots of ways to find out what’s happening at this site, you can:
- Call our 24 hour Tideway Helpdesk 08000 30 80 80 or email [email protected]
- Take a moment to read the latest updates on the noticeboards on our hoardings.
- Email our dedicated Community Relations teams available to answer your questions or meet with you, via [email protected]
- Join our regular Community Liaison Working Group meetings, to attend the meetings or receive the minutes and presentations from past meetings, email [email protected].