Scope
Reference
NKHPsluice/01
Description
North Killingholme Haven Pits SSSI is near Immingham, North East Lincolnshire, on the south bank of the Humber Estuary (central grid reference TA1662919816). The privately owned,16ha, site comprises former clay pits which have developed into saline lagoons. It is within the Humber Estuary Special Protection Area/Ramsar site and is of international importance for non-breeding waterfowl. The site is connected to the Humber Estuary by a manually operated sluice in the flood bank, which allows for the regulated exchange of tidal water. The sluice is over 50 years old and is not fully functioning due to siltation, and health and safety concerns regarding its operation. The aims of the investigation are to survey the existing water level control structures on site, and appraise the options for management of water levels to achieve the site objectives. Outputs include a levels survey, concept designs and estimated costs for each option and associated actions. Site surveys are required. Technical and practical expertise is required. This is difficult terrain due to tidal mudflats and open water. There is also a working railway line. A site-based risk assessment will be required to be submitted to Natural England. Contract to start 1 September 2025, with final report to be submitted by 1 March 2026.
Total value (estimated)
- £5,600 excluding VAT
- £7,000 including VAT
Below the relevant threshold
Contract dates (estimated)
- 1 September 2025 to 1 March 2026
- 6 months, 1 day
Main procurement category
Services
CPV classifications
- 90700000 - Environmental services
Contract locations
- UKE - Yorkshire and the Humber
Participation
Particular suitability
Small and medium-sized enterprises (SME)
Submission
Tender submission deadline
13 August 2025, 12:00pm
Submission address and any special instructions
To apply for this opportunity you must submit your quotation meeting the requirements detailed in the Request for Quotation (RFQ) attached.
Your response must be sent to morwenna.christian@naturalengland.org.uk by 12 midday on 13 August 2025.
If you have any clarification questions linked to this opportunity or the procurement process please submit these via email to morwenna.christian@naturalengland.org.uk. Please note that, unless commercially sensitive, both the question and the response will be circulated to all tenderers.
Tenders may be submitted electronically
No
Award criteria
Full details available in the RFQ.
Procedure
Procedure type
Below threshold - open competition
Documents
Associated tender documents
NKHPSluice01_Request for Quote.pdf
RFQ
NKHPSluice01_Guided Buying_Commercial Response Basic.docx
Commercial Response
NHKPSluice-01 QA.docx
Clarifications to Bidders Questions
Contracting authority
Natural England
- Public Procurement Organisation Number: PJDG-6588-XDMM
Seacole Building, 2 Marsham Street
London
SW1P 4DF
United Kingdom
Contact name: Morwenna Christian
Region: UKI32 - Westminster
Organisation type: Public authority - central government