---
title: "1 Basin Caisson - Cofferdam, Masonry Repairs, Installation"
ocid: "ocds-h6vhtk-046e7b"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-046e7b"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-046e7b.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-046e7b.json"
source: "Find A Tender Service"
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-h6vhtk-046e7b

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## Summary

The public procurement contracting process is currently ongoing for the project titled "1 Basin Caisson - Cofferdam, Masonry Repairs, Installation" by the buying organisation KBS Maritime Ltd. The project falls under the industry category of marine construction works and is located in Portsmouth, United Kingdom. The procurement stage is at an active status with a tender deadline of 28th June 2024. The total contract value is GBP 3,000,000.

This tender opportunity presents potential for business growth in the marine construction sector. Companies specialised in marine construction works and related services are well-suited to compete for this opportunity. Interested businesses can access the Selection Questionnaire and NDA through KBS Maritime Ltd's tendering portal. The procurement method is selective, following a restricted procedure, allowing suitable suppliers to participate based on predefined criteria outlined in the procurement documents.

## 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. For full list of Civils work required see section II.2.4 for full information.

### Lot Information

Lot 1

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 | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/017790-2024 |
| 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 | Not specified |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £3,000,000 |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Active |
| Lots status | Active |
| 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 | TLJ31 Portsmouth |

## CPV Codes

### Divisions

- 45 - Construction work

### Codes

- 45244000 - Marine construction works

## Release History

- 7 Jun 2024 at 16:19 - Tender - Tender Notice - https://www.find-tender.service.gov.uk/Notice/017790-2024

## Notice URLs

- https://uk.eu-supply.com/app/rfq/rwlentrance_s.asp?PID=82468&B=KBS
- https://uk.eu-supply.com/ctm/Company/CompanyInformation/Index/153032
- https://uk.eu-supply.com/ctm/supplier/publictenders?B=KBS

## 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-h6vhtk-046e7b. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-046e7b.json.