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| River
and canal development |
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| Protecting
against flooding, authorising abstraction
for drinking water, irrigation and industry,
allowing navigation and organising leisure
activities, while at the same time preserving
the ecosystem, BCEOM can provide its
clients with a variety of skills. |
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Project
experience
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Preparing
and examining the Rhône-Saône
rivers' natural flood
risk prevention plan
in the greater Lyon
area - Assistance to
owner
 The
flood risk in the Lyon
Urban Community area
is particularly complex.
It results from the
vulnerability generated
by the strong development
of the urban area and
the many causes of a
hydraulic risk (rivers
overflowing, water tables
rising, saturation of
sewerage networks, dyke
failure risks, etc.).
The Prefect of the Rhône
commissioned the Rhône-Saône
Navigation Department
to implement a Natural
Risk Flood Prevention
Plan procedure in 26
particularly vulnerable
districts such as Lyon
and Villeurbanne. BCEOM
was chosen to carry
out this technical consultancy
assignment which will
last nearly two years
(2005-2006).
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Flood
modelling in the Vilaine
River
 During
the past 10 years, the
Vilaine Basin (10,000km²)
has experienced 3 major
floods which caused
considerable damage,
particularly in very
sensitive urban areas
(Redon, Guipry and Malestroit).
BCEOM
was commissioned to
produce a global model
of the Vilaine catchment
basin for the purpose
of:
• understanding
flood formation and
propagation mechanisms
in the catchment basin,
• simulating the
effect of planned or
possible developments,
• setting up a
work basis for improving
flood forecasting and
warning methods.
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Hydraulic
development of the lower
Touloubre river - Full
project management
 The
general hydraulic development
principle for the Touloubre
River is to increase
the capacity of the
normal bed by reasonable
recalibration works
and by building low
levees at a distance
in order to preserve
the river's natural
character and control
floods which occur at
present by directing
them towards specially
designed areas which
are less vulnerable
than those currently
affected by the floods.
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Project
Management for developing
the Loire River at Brives-Charensac
 BCEOM
was Project Manager for
developing the Loire at
Brives-Charensac. This
involved design, construction
supervision and the public
enquiry procedure. The
key idea behind the project
presented by BCEOM was
to combine flood protection
with the creation of new
relations between a town,
its inhabitants and the
river.
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First-hand
account
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 "Good sense and technology"
Emmanuel POULET
"One of the most interesting
aspects of my job is
the fact that it combines
investigations in the
field with calculation
work using the increasingly
powerful tools available
to us. The hydraulic
development projects
which I have been involved
in have always been
based on these two inseparable
aspects.
The "field work"
as I call it, covers
both a precise analysis
of the wishes of local
players, detailed surveys
of local residents and
collecting documents
such as the cadaster
of the beginning of
the last century, for
example. This work could
have been carried out
in the same way and
with the same degree
of precision 200 years
ago.
At the same time, computers
are becoming daily more
powerful and our clients
are requesting ever
more precise and rapid
technical responses.
Developing our hydraulics
programmes allows us
to tailor our responses
and respond to these
demands.
These two facets of
the job help us to optimise
the proposed developments.
Also, gone are the days
of incomprehensible
computer listings! Today,
calculation output is
in the form of animated
graphics which allow
our clients to validate
our work and participate
actively in the project
process."
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River and canal
development
New 
