OpenServicesEuropeanOpen

Stream mouths along Maas and Rijn: how do we optimally restore them in practice?

BIJ12 namens IPO · Open · 1 lots · 409004
Type
Services
73110000 · Performing research
Estimated value
Not published
To deadline
-91d
Mar 17, 2026 · 14:00
Knock-outs
0
exclusion grounds
Award basis
Best price-quality ratio
2 criteria
Assess manuallyconfidence high

Research into the ecological added value and the optimal design of stream mouths along the Maas and Rijn for nature restoration. The assignment includes an integral research trajectory with a duration of three years.

Services · Open · European procedure

EuropeanComplete timeline
Contracting authority
NL
Contract type
Services
Open
Estimated value
Estimate not published
Submission deadline
March 17, 2026
14:00
Scope
European
European procedure
Lots
1
1 lots
Main CPV code
Performing research
Location
NL
CharacteristicsCPV 73ServicesEU tenderOBNnaturestream mouths

01What is being requested

Research into the optimal design and restoration of stream mouths along the Maas and Rijn. The assignment includes a duration of 3 years and involves, among other things, desk research, interviews, field research and the delivery of various end products such as a basic typology and factsheets.

The results of this research serve to strengthen the function of stream mouths as a link between the capillaries (streams in the hinterland) and the arteries (the large rivers) of the water system. Additionally, the risks and dilemmas involved in stream mouth restoration will be better mapped, so they can be better taken into account. Think, for example, of hydrology, water quality and invasive alien species. This should lead to practical solutions based on the results of the research.

73110000Services
1Main research

02Strategic insight

Strategic insight · AI analysis
Ensure a hierarchical approach in the research in which both the macro scale and the fine scale level are highlighted. Emphasize the practical applicability of the results for managers and policymakers. Ensure that the quality team possesses the necessary expertise for both ecology and hydrology.
Read automatically from the tender documents using AI. Always verify against the original documents.

03Points of attention

Important · 4
Fieldwork is seasonal (April-September).Important
The assignment is not divided into lots.Important
Tender requires eHerkenning with at least security level 2.Important
The entire assignment must be carried out by the same specialists.Important

04Can I take part?

Financial · 1
Financial and economic standing.Financial
Technical · 1
Technical and professional competence.Technical
Professional capability · 1
Professional suitability.Professional capability

05Exclusion grounds

Exclusion grounds — consult the ESPD
  • No specific exclusion grounds were extracted. In a European tender, the mandatory and discretionary grounds of art. 2.86/2.87 of the Dutch Procurement Act almost always apply — check the European Single Procurement Document (ESPD).

06Award criteria

Qualityweight n/a

Assessment based on three components: Part A. Quality of research strategy, Part B. Quality of implementation plan and Part C. Quality of team.

Priceweight n/a

Sub-award criterion Price.

07Process & timeline

Publication of announcement on TenderNed
20 januari 2026
Deadline for submitting questions
17 februari 2026 14:00
Publication of Note of Clarification
3 maart 2026
Closing date for submitting a Tender
17 maart 2026 14:00
Notification of Award Decision, start of objection period
7 april 2026
Final award
28 april 2026
Effective date of Agreement
1 mei 2026

08Value in context

Estimate not published

The contracting authority did not publish an estimated value — common for a large share of contracts. The EU threshold for diensten is € 221.000, for reference.

09Likely competitors

#Likely bidderFitWins
1Stichting BargerveenUnknown86
2Witteveen+Bos Raadgevende ingenieurs B.V.SME8411×
3Haskoning Nederland B.V.SME83
4Stichting Wageningen Research, vestiging WCDIUnknown80
5Bureau Waardenburg BVSME79
6I&O Research B.V.SME7610×

10Tender documents

Bijlage 12 - Klachtenregeling IPO VerenigingpdfJan 22, 2026 · 114 KB
Bijlage 9 - Toelichting format rapport OBN onderzoek_nov 2022docxJan 22, 2026 · 42 KB
Bijlage 11 - Verklaring Russische betrokkenheid tijdens aanbesteding DEF versie september 2022docxJan 22, 2026 · 37 KB
Bijlage 7 Model Dienstenovereenkomst onderzoek OBN BIJ12docxJan 22, 2026 · 1412 KB
uea_567591_20260120145507pdfJan 22, 2026 · 339 KB
Bijlage 8 Format OBN rapportagedocxJan 22, 2026 · 1387 KB
Bijlage 1 - Algemene voorwaarden voor onderzoek OBN 2020pdfJan 22, 2026 · 186 KB
Bijlage 6 - Beoordelingsmatrix v1.1xlsxJan 22, 2026 · 36 KB
Bijlage 5 - Format KerncompetentiedocxJan 22, 2026 · 125 KB
Bijlage 2 - AIV IPO BIJ12 2022pdfJan 22, 2026 · 167 KB
Bijlage 4 - Risicomatrix formatxlsxJan 22, 2026 · 27 KB
Bijlage 3 - Format prijzenbladxlsxJan 22, 2026 · 33 KB

11Legal themes that may be relevant here

12Frequently asked questions

What is the goal of the research into the stream mouths?
The research aims to strengthen the function of stream mouths as a link between streams in the hinterland and the large rivers. In this process, risks and dilemmas regarding hydrology, water quality and invasive alien species are mapped to arrive at practical solutions.
What expertise must bidders possess?
Bidders must possess demonstrable expertise in the field of hydromorphological research, hydrology and water quality.
In what manner must the reporting of the research results take place?
For the reporting and the risk matrix, bidders must exclusively use the specific formats and templates provided by the contracting authority.
What is the most important focus for the content of the proposal?
Bidders should emphasize the practical applicability of the research results in the proposal and clearly demonstrate the required multidisciplinary expertise, specifically the balance between hydrology and ecology.

Automatically compiled from the official tender data and documents.

13Estimated value versus the market

p25
€ 165K
median
€ 413K
p75
€ 1,0 mln
deze opdracht

Gegunde waarden in CPV 73 · diensten n=468