KSL - SE - AOMR Lot 2 - Allington Tidal Works (Phased D&B)
Environment AgencyEstimated Value
£136,089 – £0
Deadline
25 April 2026
Published
8 June 2026
Type
works
Overview
The Allington Tidal Works project aims to safeguard navigation, enhance public and operational safety, and fulfil the EA's statutory obligations under the Upper Medway Navigation and Conservancy Act 1911. This contract is for the provision of the design of a new pontoon (landing stage) and environmental enhancement works to provide safe temporary mooring and improved access for river users, and a targeted repair of the existing retaining wall that directly abuts the proposed pontoon site.
Regulations cited
- Conservancy Act 1911
AI Analysis
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The Environment Agency is looking for a contractor to design and build a new pontoon (boat landing stage) at Allington on the River Medway, repair the existing retaining wall, and carry out environmental improvements. This is a phased design-and-build project to improve safety and access for river users while meeting legal obligations under an 1911 Act.
Requirements
- Must be able to deliver phased design and build (D&B) contract — meaning you design and construct, not just one or the other
- Must comply with Upper Medway Navigation and Conservancy Act 1911 statutory obligations
- Must demonstrate experience with riverside/navigation infrastructure projects
- Must be able to work on a tidal river with associated access and environmental constraints
- Must have environmental enhancement expertise and understanding of river ecology
- Must be able to design and build to Environment Agency standards
- Must obtain necessary consents (likely planning, environmental, and navigation-related)
Key Tasks & Deliverables
- Design a new pontoon (landing stage) suitable for safe mooring of river vessels
- Construct the new pontoon with associated access and safety features
- Carry out targeted repair works to the existing retaining wall adjacent to the pontoon site
- Design and deliver environmental enhancement works to the river and surrounding area
- Ensure the design meets navigation safety requirements and public access needs
- Manage phased delivery — likely breaking the work into phases to minimise disruption
How to Read This Tender
- 1This is a 'design and build' (D&B) contract — you're responsible for both designing the solution and building it, so you need in-house design capability or a strong supply chain partnership. Don't bid if you only do one or the other.
- 2Watch for the word 'phased' — the Environment Agency is planning to break this into stages. Ask for the phasing schedule in your questions; it affects your cash flow and resource planning.
- 3The 1911 Act reference signals there are specific legal duties involved — get specialist legal advice on navigation law and EA obligations before bidding, as non-compliance could delay or stop the work.
- 4Environmental enhancement works are a significant part of this contract (not just repairs) — the buyer will likely score you on biodiversity, sustainability, and social value, not just cost. Show your environmental credentials.
- 5This is riverside work on a tidal river — factor in tidal access windows, likely planning/environmental permits, and possible protected species surveys. These slow projects down and increase costs.
Tips for Small Businesses
- Consider a consortium with a specialist civil engineer (for design) and an environmental consultant if you're primarily a contractor. D&B contracts are harder to win as a small firm alone, but partnering strengthens your bid and shares risk.
- Environmental enhancement is a big scoring area — partner with or hire someone with river habitat restoration experience. Even a small business can win by showing genuine environmental value, not just lowest cost.
- This is likely a publicly-funded EA project — check if you can claim social value points (job creation, local supply chains, apprenticeships, community benefit). Small businesses often score well here if you employ locally or offer training.
Award Details
JT Mackley & Co. Ltd
£136,089
Likely incumbents
Suppliers who won similar work from this buyer in the last 5 years.
- 1
Amalgamated Construction Ltd (AmcoGiffen)
1 contract wonlatest 3 Jun 2026ends 4 Dec 2026£226,720
total awarded
- 2
VolkerStevin Infrastructure Ltd
1 contract wonlatest 15 May 2026ends 24 Apr 2028£15m
total awarded
- 3
Ove Arup & Partners Limited
1 contract wonlatest 6 May 2026ends 13 Sept 2027£241,911
total awarded
Amalgamated Construction Ltd (AmcoGiffen) is the most likely incumbent based on recency and category match. To win, bidders typically need a clearly differentiated proposition or a price advantage.
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Buyer Profile
Environment AgencyKey Dates
Published
8 June 2026
Submission deadline
25 April 2026
Renewal expected40% confident
December 2026
Predicted using median duration of UK contracts in the same CPV division (7 months from contract start date → renewal expected by Dec 2026).
Notice type
Contract
Source
contracts finder
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