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Fribourg, Maigrauge dam - Renovation of the fish downstream migration facility

Original Fribourg, barrage de la Maigrauge - Assainissement de la dévalaison

Open Contract notice 46 days left
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Deadline 6 Nov. If it moves, an email when the register sees it. A correction: the same email. Your plan: decide by 23 Oct, questions by 23 Oct, draft by 30 Oct. Log in

  1. Published
  2. Today
  3. Deadline open for 57 days
  4. Awarded pending

Summary

Machine-generated summary

The buyer is seeking a contractor to renovate the fish downstream migration structure at the Maigrauge dam in Fribourg, Switzerland, as required by authorities restoring fish migration. Works include a new water intake, adaptation of the existing bank-side downstream migration device, new hydraulic structures and interventions on the dam and power plant. The existing hydropower facility remains in operation throughout the works, so contractors need proven experience in hydraulic works, civil engineering on existing structures and live-site construction, with high safety and risk management standards. Some works will be carried out in water using a temporary cofferdam while keeping the lake level and main intake operational. No value, date or procedure details are stated in the description.

Description

Le présent marché porte sur les travaux d'assainissement de l'ouvrage de dévalaison piscicole du barrage de la Maigrauge, dans le cadre des mesures de restauration de la migration piscicole imposées par les autorités. Le projet comprend la réalisation d'une nouvelle prise d'eau de dotation, l'adaptation du dispositif de dévalaison existant situé en rive et partiellement implanté dans le cours d’eau, la construction de nouveaux ouvrages hydrauliques ainsi que des interventions sur les structures existantes du barrage et de la centrale. Les travaux présentent un degré élevé de complexité technique en raison des interventions sur une infrastructure hydroélectrique existante, sensible et maintenue en exploitation durant toute la durée du chantier. Plusieurs ouvrages devront être réalisés en milieu aquatique, notamment à l'aide d'un batardeau provisoire permettant l'exécution des travaux à sec, tout en maintenant le niveau du lac, la prise d'eau principale et l'exploitation de l'aménagement. Les entreprises devront démontrer une solide expérience dans les travaux hydrauliques, le génie civil sur ouvrages existants et la gestion de chantiers en exploitation, avec des exigences élevées en matière de sécurité, de coordination et de maîtrise des risques.

Official source

Source: simap.ch - Swiss public procurement platform

Always verify details on the official notice.

Last verified against simap.ch - Swiss public procurement platform 1 week ago

More from this buyer

Full buyer profile

7 open tenders right now

This buyer has no award history in this sector yet. Usual winners, Construction work - Switzerland

Company Wins Total awarded Last win
DE_Equans Switzerland AG 14 €19.2M Sep 2026
FR_Weibel AG 12 €12.1M Jul 2026
DE_Anliker AG Bauunternehmung 11 €76.6M Jul 2026
DE_Walo Bertschinger AG 11 €61.9M Aug 2026
DE_Frutiger AG 10 €485.9M Aug 2026

Based on 1711 awards with a linked company profile over the last 2 years.

Change history

Every time an official source republished this notice with different content. We watch every source we index, including regional copies of the same notice.

  1. Read before bidding
    • Submission deadline: Extended by 22 days: now November 6, 2026, 13:00

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Market context

Avg. open tender · Construction work
€33,194,447
30,835 open across Europe right now
Buyer track record on Aperlena
22 notices tracked · 6 awarded
€12,114,954 in awarded contracts

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