Supply of Under Sleeper Pads

This is a pre-market engagement exercise for the procurement of Under sleeper pads (USPs). Network Rail requires the following: Under sleeper pads (USPs) - USP is a resilient (often elastomeric) layer fixed to the underside of concrete sleepers during the casting process to provide vibration protection and/or preserve the ballast under the tracks and improve track stability. The contract dates entered below reference the deadline for the pre-market engagement exercise.