Keltalammikki VEX – Call for Proposals
Aura River Foundation is launching the procurement for the Keltalammikki VEX project, which aims to develop a surface-covering method to control yellow fringed waterlily (keltalammikki) in the Aura River.
The project will be implemented during 2026–2027, focusing on producing a method plan and conducting practical testing in flowing waters. The final output will be an open-method manual, making the control method easy to replicate and scale for the Aura River and surrounding municipalities.
Summary of the Procurement
- What is procured: Method plan + practical testing
- Where: Lieto, Aura River (Vääntelänkoski–Vanhalinna)
- When: 2026–2027
- Outcome: Open-method manual
- Nature of the project: Non-material investment
Request for Proposals
We invite proposals for producing the method plan and conducting practical testing in this two-year project. The project is based on an example from Sweden, where floating aluminum frames were covered with sun-protective fabric. The project also includes a study visit to Sweden to observe their solution.
Covers will be installed on-site in spring and removed in autumn of 2026 and 2027. The concept does not need to be fully finalized at the time of procurement; it will be developed during the project. Production, transport, installation, and removal of the covers and frames can be carried out by the contractor or a subcontractor.
Please also provide a portfolio of your expertise and suggestions for potential subcontractors.
Proposals must be submitted within three weeks, i.e., by 16 March 2026, via email to:
info@aurajoki.net
Contact person for inquiries:
Eeli Hoffström-Cagiran, Executive Director, Aura River Foundation
- Email: eeli.hoffstrom-cagiran@aurajoki.net
- Phone: +358 40 5537 409
Project Objectives
- Safety – Risks in flowing waters must be anticipated and managed.
- Effectiveness of control – Structures must withstand wind, water level, and flow variations.
- Cost-efficiency – Material solutions must be cost-effective for sufficient testing.
- Scalability – The method should be easily replicated in other areas.
- Transparency – All results will be documented in a manual for free use.
- Intellectual property – Solutions developed will remain freely available for Aura River Foundation.
- Environmental and landscape values – Structures must not harm nature or the landscape.
Evaluation of Proposals
Proposals will be evaluated primarily on overall quality, considering:
- Price
- Competence in water construction and working in flowing waters
- Competence in environmental measures
- Respect for natural and landscape values
Contract Terms
The project will follow JYSE 2025 SERVICES, clauses 24 and 25. More information: URN:978-952-367-827-9.
All interested parties are invited to indicate their participation in the procurement. Questions regarding the project can be addressed to the contact person above; answers will be shared with all participants to ensure fair competition.
The call and further information (in Finnish):
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