Ecological, landscaping and hydraulic restoration of Brévenne in the cities of l'Arbresle and Eveux

Abstract

At the dawn of the attribution of the Gemapi (French acronym for "management of aquatic environments and flood prevention") competence to local authorities, it is a necessity to take into account the natural functioning of watercourses in any project of urban development and flood control. Faced with a recurrence of major floods, the Brévenne-Turdine syndicate (Syribt) had launched over the last decade a study to define a program of actions intended to restore the hydro-morphological functioning of the main watercourses of the watershed and to define priority intervention sites, including the "Bigout" site of 9ha in the peri-urban area of the Arbresle commune on the Brévenne River. A project management team, consisting of specialized offices in the morpho-ecological restoration of streams and bioengineering, river hydraulics, landscape enhancement of semi-natural spaces and reception of the public, was thus chosen and proposed the creation of a true "natural park in an alluvial environment". The studies took place over a full year in 2016. The works are scheduled for the end of 2017.