Natural Water Retention Measures

Revitalisation of riverbanks and connection of hydraulic annexes alongside the Scarpe river in France

General

National Id:

France_03

Site name:

Scarpe river, Arras

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

Light or indepth?:

Light

Monitoring maintenance

Monitoring impacts effects:

1

Monitoring parameters:

Checking of vegetation's health

Performance

Performance impact estimation method:

Unknown

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

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):

Type	Role	Comments
Attitude of relevant stakeholders

Financing:

Type	Comments
National funds

Barrier:

Type	Role	Comments
Expected maintenance needs

Driver:

Type	Role	Comments
Organisation committed to it

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

Policy, general governance and design targets

Policy description:

Protection of riverbanks

Part of wider plan:

1

Policy pressure:

Policy requirement directive:

Policy impact:

Policy wider plan:

Wider plan type	Wider plan focus	Name	Comments
		WFD - good ecological status (country)

Policy area:

Policy target:

Target purpose
Peak-flow reduction
Pollutants Removal
Improved Biodiversity
Oher Societal Benefits

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:

Design consultation activity:

Design land use change:

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

Log in to post comments

Last updated: 12 Jan 2015 | Top

Miscellanous

Main menu

Revitalisation of riverbanks and connection of hydraulic annexes alongside the Scarpe river in France

Partners