The perfect tool to save time and preserve the environment
while keeping costs low!
Regular maintenance of waterways to limit the risk of flooding (log jams), emergency work following major weather events, hydro-morphological or hydro-ecological works, morphological crossing, landfill and restoration works: Water-Gate© flexible cofferdams are the perfect tool to help you save time and preserve the environment while keeping costs low.
The incredible efficiency of Water-Gate© flexible cofferdams
They count on us
Our services for river works
Feasibility analysis based on data: Profile | Flow.
. PURCHASE/RENTAL ADVICE
Quickly recoup the purchase costs.
Rental possible for non-recurring flash floods.
. REMOTE ASSISTANCE
Video calls (WhatsApp, Skype, FaceTime) for remote advice during the initial installation.
River works: case studies
Repairing structures, maintaining waterways and canals.
Water-Gate© flexible cofferdams are acclaimed by contractors and site managers for their efficacy, simplicity and versatility.
Repairing structures, underpinning, reinforcing river supports, repointing, restoring ecological continuity, removing log jams, renovating banks, draining feeder canals, etc.
Usage conditions of the Water-Gate© flexible cofferdam
Works in water – rivers – canals – ponds. Flexible cofferdams can be used in the majority of situations.
Uneven ground increases friction and thus the stability of the dam. Care is required when using the dam on muddy ground. On a concrete surface, we recommend using the WL range of flexible cofferdams with ballast rather than the WA range of cofferdams. On a sandy surface, you must bury the leading edge to limit the effects of piping erosion.
The dangerousness of the flow depends on the Depth * Speed couple.
From 0.50 m / s, the speed of the current becomes dangerous for an adult, with a risk of being carried away by the stream or being injured by objects carried at high speed.
Do not intervene if D * V> 0.8
D = Depth in m | Depth in m
V = Velocity in m / s | Speed in m / s
WA: a comprehensive range of flexible cofferdams up to 2 m high
* Cofferdam designed without ballast: the flexible leading edge fits perfectly over uneven surfaces
** Only for installation in standing water
*** Deep ground sheet that facilitates pedestrian passage and safe pumping for chutes
**** Limits the risk of erosion in the event of overflow, especially on sandy beds