]> 2026-04-26T15:20:28+00:00 Case study:Langonnet river 500 en http://www.restauration.georiv.fr/resources/langonnet_cs.pdf Case study description (in French) Approved 0.005117 Creation of pools and riffles Creation of groynes introduction of blocks Creation of berms Yes Yes Fish: Species composition,Yes,Yes,,,, Fish: Species composition (FORECASTER) Central Plains l'Etat et la Région (Volet "Milieux aquatiques et poissons migrateurs" CPER 2000-2006) l'Agence de l'Eau Loire-Bretagne (50%) la Région Bretagne (15%) le Conseil Général du Morbihan (15%) et les Pêcheurs (20%). No No Yes false Yes Yes Channel pattern/planform,Yes,Yes,,,, Channel pattern/planform Langonnet cs 1.jpg Langonnet cs 2.jpg Examples of intervention on the Lagonnet river. Blocks put in place on the Lagonnet river bed. No Yohann Fuentes Fishermen (20%) Fishermen (20%) FDPPMA 56. 48.092755,-3.505134 Yohann (FORECASTER) FUENTES Creation of pools and riffles, Creation of groynes, introduction of blocks, Creation of berms,,Develop riparian forest, Tree plantation,, ,,, 1 - 10 k€ FDPPMA 56. Yohann Fuentes Yes Yes Temperature,Yes,Yes,,,, Temperature 837 2000-01-01Z 2451544.5 Complete Over the years, heavy hydraulic works were carried out on the Lagonnet River, such as straightening and widening of the river course, causing habitat depletion and lowering of the water table. The main goals of the restoration activity were to restore the morphology and functionality of the river and to improve the habitat diversification. A preliminary assessment, carried out in 2001, has defined the technical goals: to improve the longitudinal and cross section profile diversification, to define a narrower flow section (especially in low water) and a sequence of riffles and pools. The reactivation of the river dynamics allow to keep the restoration results on the long term. The works included the installation of 24 sills and 239 groynes (in blocks or wooden). Berms are also created along 250 m and blocks are put in place on the riverbed. The maintenance of 2687 m of riparian forest and new plantation along 1400 m of river banks were carried on. Langonnet river langonnet river No 5300 Loire Loire-Bretagne Develop riparian forest Tree plantation Langonnet langonnet Langonnet River langonnet river 34 10 - 100 km² 100 - 200 m Langonnet Habitat and biodiversity Hydromorphology Monitoring Water quality 150.315 more than 10000 k€ HER1-12 / HER2-60 FRJ471400A 2006-01-01Z 2453736.5 2004-01-01Z 2453005.5 2012-07-31T17:34:00Z 2456140.2319444 2017-06-06T09:11:48Z 2457910.8831944 Langonnet river 500 1 plainlist 5 [[Category:Case study]] [[Project title::!Langonnet river]] [[Subcatchment title::Langonnet]] Langonnet river# QUERY129fe0a4848d50252389e3369d0963c1