--- title: "1 Basin Caisson - Cofferdam, Masonry Repairs, Installation" ocid: "ocds-b5fd17-d818e5d7-7f3a-447c-b88a-37d350726fbb" canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-d818e5d7-7f3a-447c-b88a-37d350726fbb" markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-d818e5d7-7f3a-447c-b88a-37d350726fbb.md" json_url: "https://d3tenders.com/contract/ocds-b5fd17-d818e5d7-7f3a-447c-b88a-37d350726fbb.json" source: "Contracts Finder" current_stage: "Tender" buyer: "KBS MARITIME LTD" published: "2024-06-07" --- # 1 Basin Caisson - Cofferdam, Masonry Repairs, Installation Buyer: KBS MARITIME LTD Current stage: Tender OCID: ocds-b5fd17-d818e5d7-7f3a-447c-b88a-37d350726fbb [View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-b5fd17-d818e5d7-7f3a-447c-b88a-37d350726fbb) [Download OCDS JSON](https://d3tenders.com/contract/ocds-b5fd17-d818e5d7-7f3a-447c-b88a-37d350726fbb.json) ## Summary The procurement process for the project titled "1 Basin Caisson - Cofferdam, Masonry Repairs, Installation" is currently in the tender stage. KBS Maritime Ltd is the buying organization based in Portsmouth, United Kingdom. The project falls under the industry category of marine construction works. The procurement method is selective with a restricted procedure. The tender deadline is on June 28, 2024. The contract is set to start on January 31, 2025, and end on February 24, 2027. This tender presents an opportunity for businesses involved in marine construction works to compete for a contract worth £5,000,000 GBP. Companies with expertise in marine engineering, construction, and historic restoration would be well-suited to bid for this project. Interested parties should engage with KBS Maritime Ltd through their tendering portal to access the Selection Questionnaire and NDA. The project location is in the South East region of the United Kingdom, providing an opportunity for local businesses to participate in this significant infrastructure development. ## Notice Proposed to replace the existing caisson to 1 Basin. Proposed works to be undertaken as per the design and surveys approved with Historic England and Crown Estates. Install perimeter CPNI fencing to secure the site for the duration of the project. Installation of temporary cofferdams to the East and West that will not impact the historic fabric. Dewater and inspect and survey the 1 Basin stonework. Monitor historic seawalls and ground water levels during the works. Undertake stone wall repairs in accordance with Historic England detail specification and approval. Replace the penstock gate with electric operated replacement with civil works and electrical supply required to operate. Demolition and removal of the existing caisson constructure to 1 Basin. Repairs to the caisson groove and prepare for replacement caisson arrival (by others) removal all structural supports. Remove and survey the condition of the road bridge. Repair works to the sill and stone repairs to match the existing structure to the detailed specifications to Historic England specification. Install a temporary foot bridge during the project. Refurbishment and load testing of fairleads and bollards and leave in full working order for ongoing operations. Clean, survey and remedial repairs to historic brickwork culvert after dewatering. Remove the temporary cofferdams and refit road bridge after caisson has been replaced and all works to the bridge has been completed. ## Key Details | Field | Value | | --- | --- | | Publication source | Contracts Finder | | Latest notice | https://www.contractsfinder.service.gov.uk/Notice/d49d5b0d-ff9c-4cd6-a35b-8b2bb644583a | | Notice type | Tender Notice | | Procurement type | Standard | | Procurement category | Works | | Procurement method | Selective | | Procurement method details | Restricted procedure | | Tender suitability | Not specified | | Awardee scale | Not specified | | All stages | Tender | ## Dates | Field | Value | | --- | --- | | Publication date | 7 Jun 2024 | | Submission deadline | 28 Jun 2024 | | Future notice date | Not specified | | Award date | Not specified | | Contract period | 31 Jan 2025 - 24 Feb 2027 | | Recurrence | Not specified | ## Values | Field | Value | | --- | --- | | Tender value | £5,000,000 | | Lots value | Not specified | | Awards value | Not specified | | Contracts value | Not specified | ## Status | Field | Value | | --- | --- | | Tender status | Active | | Lots status | Not specified | | Awards status | Not specified | | Contracts status | Not specified | ## Buyer | Field | Value | | --- | --- | | Main buyer | KBS MARITIME LTD | | Locality | PORTSMOUTH | | Post town | Portsmouth | | Postcode | PO1 3LS | | Country | England | | ITL 1 | TLJ South East (England) | | ITL 2 | TLJ3 Hampshire and Isle of Wight | | ITL 3 | TLJ31 Portsmouth | | Local authority | Portsmouth | | Electoral ward | Charles Dickens | | Westminster constituency | Portsmouth South | | Delivery location | TLJ South East (England) | ## CPV Codes ### Divisions - 45 - Construction work ### Codes - 45244000 - Marine construction works ## Release History - 7 Jun 2024 at 18:08 - Tender - Tender Notice - https://www.contractsfinder.service.gov.uk/Notice/d49d5b0d-ff9c-4cd6-a35b-8b2bb644583a ## Documents - https://www.contractsfinder.service.gov.uk/Notice/d49d5b0d-ff9c-4cd6-a35b-8b2bb644583a 7th June 2024 - Opportunity notice on Contracts Finder - https://uk.eu-supply.com/app/rfq/rwlentrance_s.asp?PID=82468&B=KBS Additional data - https://uk.eu-supply.com/ctm/Company/CompanyInformation/Index/153032 User / Company - https://uk.eu-supply.com/ctm/supplier/publictenders?B=KBS If you are interested in this opportunity, please express an interest through KBS' tendering portal to access the Selection Questionnaire and NDA ## Provenance This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-b5fd17-d818e5d7-7f3a-447c-b88a-37d350726fbb. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-b5fd17-d818e5d7-7f3a-447c-b88a-37d350726fbb.json.