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Realization of Wastewater Transport Pipeline Leimuiden (DIG-18368)

Hoogheemraadschap van Rijnland · Open · 1 lots · 416137
Type
Works
45231300 · Construction of pipeli
Estimated value
Not published
To deadline
-40d
May 7, 2026 · 10:00
Knock-outs
n/a
exclusion grounds
Award basis
Best price-quality ratio
2 criteria
Assess manuallyconfidence high

Realization of a new wastewater transport pipeline between Leimuiden and Nieuwe Wetering by means of various earthworks and pipeline works.

Works · Open · National procedure

Complete timeline
Contracting authority
Hoogheemraadschap van Rijnland
Zuid-Holland
Contract type
Works
Open
Estimated value
Estimate not published
Submission deadline
May 7, 2026
10:00
Scope
National
National procedure
Lots
1
1 lots
Main CPV code
45231300
Construction of pipelines for water and wastewater
Location
Leimuiden, Zuid-Holland
CharacteristicsCPV 45Workswastewatertransport pipelineearthworks

01What is being requested

The contract concerns the realization of a wastewater transport pipeline from the current AWTG Leimuiden to the AWZI Nieuwe Wetering, including earthworks, pipeline installation in open excavation, pressure pipes, HDDs, and sinkers.

The existing AWZI Leimuiden will eventually be relocated, as a capacity expansion also took place during the renovation of AWZI Nieuwe Wetering a few years prior, allowing the latter to take over the purification activities of AWZI Leimuiden. To make this possible, among other things, the current AWTG's must be renovated or renewed and a new AWTL (ø315mm) must ensure the transport of wastewater to Nieuwe Wetering.

45231300Works
1This tender has no lots—

02Strategic insight

“
Strategic insight · AI analysis
Ensure a very strong plan of approach as this is a quality aspect. Ensure that the tender price is correctly substantiated on the Tender Schedule Annex 3.
Read automatically from the tender documents using AI. Always verify against the original documents.

03Points of attention

Important · 3
The tender must be submitted via electronic submission.Important
The tender must remain valid for at least 3 months.Important
The use of variants is not permitted.Important

04Award criteria

Quality1

K1 Plan of approach

Tender price1

Display the tender slip and the substantiation on the Tender Schedule Annex 3

05Process & timeline

Deadline for requests for additional information
31/03/2026 10:00 +02:00
Deadline for receipt of tenders
07/05/2026 10:00 +02:00
Start date
23/06/2026
End date of the duration
01/04/2027

06Value 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 werken is € 5,54 M, for reference.

07Likely competitors

#Likely bidderFitWins
1KWS Infra B.V.SME9692×
2BAM Infra B.V.SME9677×
3Combinatie Heijmans - SWARCOUnknown9673×
4Heijmans Infra B.V.SME9665×
5Van Gelder BVSME9653×
6ENGIE Infra & Mobility B.V.SME9669×

08Tender documents

Inschrijvingsleidraad inclusief bijlagenzipMar 17, 2026 · 227592 KB
TN575326 - EFE3 Vrijwillige aankondiging van een opdracht 20260317090214pdfMar 17, 2026 · 201 KB
uea_575326_20260304171136pdfMar 17, 2026 · 564 KB

09Legal themes that may be relevant here

10Frequently asked questions

What is the exact scope of the works for the new wastewater transport pipeline?
The contract includes performing earthworks, installing pipeline in an open excavation of approximately 2410 meters, removing approximately 590 meters of pipeline, installing approximately 2600 meters of pressure pipes, performing 5 horizontal directional drillings (HDD), and installing 2 sinkers.
Which suitability criteria must a bidder meet?
Bidders must be able to provide demonstrable experience with the installation of pressure pipes and the execution of horizontal directional drilling (HDD).
What is the purpose of the realization of the new AWTL (ø315mm)?
The new wastewater transport pipeline (ø315mm) must ensure the transport of wastewater to the AWZI Nieuwe Wetering, so that the purification activities of the AWZI Leimuiden can be taken over by this location.
Which technical requirements apply to the execution?
The execution of the works must be carried out in accordance with the technical specifications for the AWTL ø315mm.

Automatically compiled from the official tender data and documents.

11Estimated value versus the market

p25
€ 1,4 mln
median
€ 3,6 mln
p75
€ 9,1 mln
deze opdracht

Gegunde waarden in CPV 45 · werken n=3159