Railway depot construction work

Tender description

As part of the Metro Futures programme, Nexus wishes to; procure a new fleet of Electric Multiple Units to replace its existing Metrocar fleet, procure a maintainer for the New and Existing Fleets, and procure New Maintenance facilities. In order to enable sufficient capacity at the current Depot site in Gosforth, a new temporary Satellite Depot Facility is required, which is the remit for these works. The Satellite Depot Facility works are located on a site adjacent to the existing Metro System rail corridor between Howdon and Percy Main Stations. The existing site shall be cleared as part of the works. The new Satellite Depot facility shall seek to accommodate a minimum of 10no. 65m length trains, for stabling. The stabling roads shall be separated to allow for cleaning access and full visual inspection for the trains prior to service. They shall also be provided with power points for cleaning staff. A delivery track is required to enable delivery of the new fleet of rolling stock via road vehicle delivery. This shall be used for the delivery and recovery of trains and shall not affect the remainder of the site operations when in use. A building for single vehicle light maintenance and new rolling stock delivery/assembly shall be provided with a pit and flexible high-level train access. Nexus aspiration would be that the site enabled the Metrocars to access the building without a move onto the main network. The broad scope of works comprises as follows: — Outline Design and Detailed Design of the Satellite Depot Facility, — Mobilisation to site, — Site preparation and enabling, — Site perimeter security fencing, — Install tracks and ballast over the extents of the works, — Install new rail connection to the existing Metro rail system, — Modify existing highway access for articulated vehicles, — Install bottom ballast, — Install OLE and associated OLE Masts, including connection to the existing Metro rail system, — Provide a traction supply sub-station/transformer facility, — Construct a Satellite Depot Facility building with suitable staff accommodation, — Install signalling compatible with the main network, — Install a Depot Protection System.