General National Id France_03 Site name Scarpe river, Arras Light or indepth? Light RBD code FRA Transboundary 0 Data provider Elia Desmot, OIEau Source(s) Aménagement des berges en génie végétal et mise en place de zones annexes sur la Scarpe canalisée à Arras NWRM(s) implemented in the case study Stream bed re-naturalization Reconnection of oxbow lakes and similar features Longitude 2.7818 Latitude 50.293 Site information Climate zone cool temperate moist Mean rainfall 618 Mean rainfall unit mm/year Average temperature 10 Type Case Study Info Monitoring maintenance Monitoring impacts effects 1 Monitoring parameters Checking of vegetation's health Performance Performance impact estimation method Unknown Design & implementations Application scale River Installation date 2012 Lifespan 100 Age 2 Performance timescale < 1 year Constraints River banks protected by grey infrastructure Favourable preconditions Population favourable to the change Design contractual arrangement Arrangement type Responsibility Role Comments Name Design consultation activity Activity stage Key issues Name Comments Design land use change Land use change type Design authority Authority type Role Responsibility Name Comments Communauté Urbaine d'Arras (CUA) Agence de l†™eau Artois-Picardie Fédération départementale des associations agréées pour la pêche et la protection des milieux aquatiques du Pas-de-Calais Lessons, risks, implications... Key lessons The revitalisation of the Scarpe River led to an improvement and a diversification of its related aquatic and terrestrial habitats. Therefore, this project participated in enhancing the ecological status of the river, expected to be good by 2021. The perception of the population was very positive thanks to the amenity space provided. However, the fact that the work took place from the river made its realisation difficult and a population of gooses is now disturbing the growth of the planted vegetation. Success factor(s) Success factor type Success factor role Comments Attitude of relevant stakeholders Financing Financing type Comments National funds Barrier Barrier type Barrier role Comments Expected maintenance needs Driver Driver type Driver role Comments Organisation committed to it Financing share Financing share type Share Comments Policy, general governance and design targets Policy description Protection of riverbanks Part of wider plan 1 Policy target Target purpose Improved Biodiversity Peak-flow reduction Pollutants Removal Oher Societal Benefits Policy pressure Pressure directive Relevant pressure Policy area Policy area type Policy area focus Name Comments Policy impact Impact directive Relevant impact Policy wider plan Wider plan type Wider plan focus Name Comments WFD - good ecological status (country) Policy requirement directive Requirement directive Specification Socio-economic Costs investment 132277 Costs operation maintenance 1189032 Costs total 1321310 Costs total information preliminary studies and operational costs Ecosystem improved biodiversity 1 Information on Ecosystem improved biodiversity New fish species Ecosystem provisioning services 1 Information on Ecosystem provisioning services Amenity space, improvement of water quality Ecosystem impact climate regulation No specific impact Information on Ecosystem impact climate regulation Not mentioned Biophysical impacts Water quality overall improvements N/A info Information on Water quality overall improvements The riparian area associated to the river has been improved and therefore the pollution is better managed Soil quality overall soil improvements N/A info Information on Soil quality overall soil improvements Biodiversity enhanced Full Context Pathway(aka Context) Default view Area(aka Level or Site) ALL