The Strategic Infrastructure Works (‘SIW’) will provide the first phase of strategic infrastructure required to unlock housing development in Meridian Water. The SIW consists of rail enhancement works (Rail Works) amounting to a value of around £40m and strategic road and flood alleviation works (Street Works) for a value amounting to approximately £116m.
In summary the scope of the Street Works includes:
- Roads, pedestrian/cycle links and bridges: to provide access to the development zones and connect them to the new Station and improve east-west connectivity across the site, linking existing homes with the Lee Valley Regional Park to the north east including improvements to Leeside Road and Glover Drive to reinforce the main arterial infrastructure.
- Earthworks and remediation: Re-levelling of Development Zones 4-5 using excavated fill from the proposed flood compensation land within the Lee Valley Regional Park.
- Flood alleviation and associated landscaping: flood alleviation works to enable development in the areas of the site that are subject to flood risk (all of those within the central Development Zones). This includes naturalisation of the Brooks to provide floodwater storage capacity and expand the capacity of the Salmon and Pymmes Brooks. Re-levelling of the Lee Valley Regional Park to create the main flood capacity. Creation of new parks and amenity areas.
- Demolition works: demolition of existing buildings and removal of associated built structures to enable infrastructure works associated with flood alleviation, roads and utilities.
- Utility infrastructure: abandonments and diversions, new utility infrastructure to support the development (electricity transmission, substations, pumping station telecom containment, potable water mains, gas mains, foul sewers, surface water drainage channels, and corridor for a district heating system), and off-site reinforcement of existing utility networks to cater for the increased demand.
In summary the scope of the Rail Works includes:
- Infrastructure enhancement to enable alteration of existing timetabled services, to allow for additional stops at Meridian Water (min 4tph) connecting to central London.
- Works to comprise construction of a fast track loop at Ponders End, with crossovers connecting the loop to both the “up” and “down” main line.
On 30 October 2020 the Council entered into the Grant Determination Agreement (GDA) with the Ministry of Housing, Communities and Local Government (MHCLG) for a total funding amount of around £170m to deliver the SIW.
Construction is planned to start on site in autumn 2021 and works are to be completed by March 2024.