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Leiston-cum-Sizewell

Main Development Site

Activity: Site construction

Start date: 30th October 2024

End date: 28th February 2025

Update

The following road closures are planned to facilitate collaborative working with several utility companies which was announced in October is being extended to facilitate Essex & Suffolk Waters water pipes diversions:

From 9 December until  20 December there will be one lane closures under Traffic Management / Lights from 05:00 to 20:00 with a full night closure with short diversion through Leiston from 20:00 to 05:00.

Works will cease throughout the Christmas holiday period and re-start on 6th January 2025

From 6 January until  the end of February will be one lane closures under Traffic Management / Lights from 05:00 to 20:00 with a full night closure with short diversion through Leiston from 20:00 to 05:00.

Diversionary routes will be in place for these periods. Please see map below for the Lovers Lane diversion.

Sizewell C have worked with the following utility companies to reduce any disruption to the local area whilst they undertake upgrades and diversions to their networks to improve resilience in our area:

  • Essex and Suffolk Water 
  • UK Power Networks 
  • Openreach 

Understandably there will be some disturbance with planned works as the utility companies will need to excavate, backfill and reinstate both the carriageway and footway. 

 Essex and Suffolk Water, UK Power Networks and Openreach will be contacting any customers directly if planned works would affect their services. 

 We apologise in advance for any disturbance and inconvenience caused by these works.