Published date: 24 November 2021

Last edited date: 16 December 2021

Closed opportunity - This means that the contract is currently closed. The buying department may be considering suppliers that have already applied, or no suitable offers were made.

Closing: 7 January 2022, 12pm

Contract summary


  • Structural products and parts except prefabricated buildings - 44212000

  • Construction work for water projects - 45240000

  • Special trade construction works other than roof works - 45262000

Location of contract

PO12 2AS

Value of contract


Procurement reference


Published date

24 November 2021

Closing date

7 January 2022

Closing time


Contract start date

24 January 2022

Contract end date

31 March 2022

Contract type


Procedure type

Open procedure (above threshold)

Any interested supplier may submit a tender in response to an opportunity notice.

This procedure can be used for procurements above the relevant contract value threshold.

Contract is suitable for SMEs?


Contract is suitable for VCSEs?



The NMRN are seeking works to the cofferdam which is beneath the submarine HMS Alliance. The cofferdam requires the removal of the stone ballast (and storage) to access to repair the drainage, as well as removal of the walkway at the bow end of the cofferdam.

The walkway will require re-installation as part of the works itself after the drainage of the cofferdam has been repaired and the ballast removed reinstated. This is detailed in the Annex's of this document.

The work will be carried out at the Royal Navy Submarine Museum, and the work carried out will often be with the museum itself open to the public. However the NMRN understands that some work will require the closure of the site or the submarine for the work to be carried out.

More information


Additional text

Further communications can be made to Roy Smith Conservation and Maintenance Manager

Telephone; 02392 891370 Ext: 2091

About the buyer

Contact name

Dave Hartley


National Museum of the Royal Navy, Main Road
HM Naval Base Portsmouth


02392891370 ext 2042