Closed tender

Spray Waterproofing C4-KCSL

Details

Value
£125,000
Topic
Waterproofing work
Published
28 January 2025
Submission
31 January 2025

Tender description

Kilnbridge have secured the HS2 Old Oak Common Station Works Package WP13.1-Urban Realm Civils, Utilities and Earthworks. Part of this scope requires the installation of waterproofing to the roof slabs of the Western HS2 attenuation tank and the GWML attenuation tank. Western HS2 Attenuation tank roof slab to be waterproofed = 1379m2. GWML Attenuation tank roof slab to be waterproofed = 225m2 Works are expected to be completed in 2 to 3 mobilisations commencing in Q4 2025 and Q4 2026. The waterproofing systems shall be a spray applied membrane to BBA certification. The membrane is to be applied to an in-situ concrete substate and achieve a U4 finish compatible with system requirements and BBA Roads and Bridges Certification requirements. Coatings shall be a BBA certified liquid applied structural waterproofing system suitable and certified for below grade applications on horizontal surface. The design life is 120years. All necessary precautions shall be taken to protect membrane from damage during construction operations. All Testing shall be in accordance with BBA certification requirements.

Timeline

  1. Completed: Tender published28 January 2025
    Current notice
  2. Completed: Submission date31 January 2025

About the buyer

HS2 Ltd is a non-departmental public body sponsored by the Department for Transport, and buys as a central government agency building Britain's high-speed railway between London and Birmingham. Contracts above the public procurement threshold are advertised on Find a Tender, and smaller awards appear on Contracts Finder. Framework agreements cover major packages, such as the lifts and escalators for Phase One stations. Four tier-one joint-venture contractors, including EKFB and Align JV, deliver the main civils work. Those contractors procure their own tier-two subcontractors, who source further down the chain. Live subcontract opportunities are advertised through the CompeteFor portal.

Procurement spend from central entities makes up 66% of overall UK public spend.

Over the past 5 years, most of HS2's contract awards have been in construction work, metals and mining products and transport equipment.

Relevant CPV codes

  • 45261420 · Waterproofing work

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