About the project
Parts of St Helier currently have a combined sewer system. This means that foul and surface water are drained by the same pipe.
The aim of this project is to separate the surface water from the combined sewer system which has significant long-term benefits.
We’ll carry out Phase 3 from 5 August to 1 September 2025. This final phase includes the installation of a new surface water pipe continuing up Trinity Road as far as the junction with Dongola Road. A full road closure of this section will be in place for the duration of the works.
Phase 2 was completed on 4 August 2025 and Phase 1 was completed in 2024.
If you have any questions email
LWCapitalDelivery@gov.je or call +44 (0) 1534 445509.
Schedule of work
Phase 1 (completed) Springfield Road | 18 November to 24 December 2024
| Closure of lane and lane reduction |
|---|
Phase 2 (completed)
Junction of Rouge Bouillon, Trinity Road, Springfield Road and Val Plaisant | 21 July to 4 August 2025
| Junction closure |
|---|
Phase 3 Trinity Road | 5 August to 1 September 2025
| Full road closure for the duration of the works
|
|---|
Diversion
Diversion routes will be in place for the final phase, which is shown on the route map below.
Waitrose and Grand Vaux businesses are open as usual. Follow the diversion routes to access these businesses.
We encourage vehicles to follow the diversion routes to reduce additional congestion on smaller and residential roads.
Phase 3
There will be a road closure of Trinity Road from Dongola Road up to the junction with Springfield Road.
Diversion route Phase 3
Access
Access to all businesses, car parks and residential properties in the surrounding area will be maintained during the works.
Bus
Find bus routes and timetable information on
LibertyBus.
gov.je