Pöyry to help protect the City of Winterthur against floods

3/13/2012, 8:01 AM (Source: GlobeNewswire)
PÖYRY PLC          Press release 13 March 2012

Pöyry's Energy business group has been awarded an Owner's Engineering contract
by the Canton of Zurich for the Tender Design, Construction Design and Site
Supervision of the Hegmatten Flood Retention Reservoir near the City of
Winterthur, Switzerland. Pöyry's share of the assignment is approximately EUR 2
million and it has been booked in the first quarter order stock 2012.

The assignment will be carried out with Pöyry as the technical leader of a
consortium. The consortium partner is Basler & Hofmann AG, Switzerland.

The project will start in March 2012, with a duration of 12 months for the
Tender Design and Detailed Design preparation. Construction Supervision will
start in spring 2013 and will last for 24 months.

The Hegmatten flood retention reservoir will be one of the most important
systems for the protection of the City of Winterthur against catastrophic
floods. Because of insufficient capacity of the existing bed of the river Eulach
the centre of Winterthur is endangered by the risk of inundations during major
flood events, with a big potential for major damage in case of uncontrolled
inundations.

The project includes both civil design and environmental related consultancy
services. The major project elements are the construction of a 450 m long cut
and cover flood diversion channel as well as a 1.4 km long flood retention dam
including the related appurtenant structures, such as a spillway and bottom
outlet.

The actual project is based on the concept of flood retention by the creation of
an artificial reservoir upstream of the city centre, which in case of major
floods enables the release of decreased discharges. After the construction of
the Hegmatten Flood Retention Reservoir, the city centre of Winterthur will be
protected against inundations up to flood events with a 100-year return period.

PÖYRY PLC

Additional information:
Philipp Elkuch, President, Business Area Central Europe, Energy Business Group
Tel. +41 76 356 20 59
Ari Asikainen, President, Energy Business Group
Tel. +358 10 33 24 476

Pöyry is a global consulting and engineering company dedicated to balanced
sustainability and responsible business. With quality and integrity at our core,
we deliver best-in-class management consulting, total solutions, and design and
supervision. Our in-depth expertise extends to the fields of energy, industry,
transportation, water, environment and real estate. Pöyry has about 7,000
experts and a local office network in about 50 countries. Pöyry's net sales in
2011 were EUR 796 million and the company's shares are quoted on NASDAQ OMX
Helsinki (Pöyry PLC: POY1V).

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