General
National Id
France_02
Site name
Bezannes, near Reims
RBD code
FRH
Transboundary
0
Data provider
Elia Desmot, OIEau
Source(s)
NWRM(s) implemented in the case study
Longitude
3.989
Latitude
49.222
Site information
Climate zone
cool temperate moist
Mean rainfall
618
Mean rainfall unit
mm/year
Average temperature
10
Type
Modelled/Simulated Example
Light or indepth?
Light
Monitoring maintenance
Monitoring impacts effects
0
Performance
Performance impact estimation method
Unknown
Design & implementations
Application scale
City
Performance timescale
< 1 year
Area (ha)
72
Design capacity description
15000m3
Constraints
At the beginning of the project, the storage was going to be a concrete water tank. A whole procedure of re-thinking had to be done.
Favourable preconditions
The idea to change from concrete to natural water retention was supported by WFD conditions and the city management.
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 |
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Design authority
| Authority type | Role | Responsibility | Name | Comments |
|---|
Lessons, risks, implications...
Success factor(s)
| Success factor type | Success factor role | Comments |
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Financing
| Financing type | Comments |
|---|
Driver
| Driver type | Driver role | Comments |
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Financing share
| Financing share type | Share | Comments |
|---|
Policy, general governance and design targets
Policy description
Bezannes needed an area to store water from runoff to protect a new urban zone.
Policy target
| Target purpose | |
|---|---|
|
Increase Water Storage
|
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Runoff control
|
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Improved Biodiversity
|
|
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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 |
|---|
Policy requirement directive
| Requirement directive | Specification |
|---|
Socio-economic
Ecosystem improved biodiversity
1
Information on Ecosystem improved biodiversity
No biodiversity involved
Ecosystem provisioning services
1
Information on Ecosystem provisioning services
Amenity space, improvement of water quality, increased water storage
Ecosystem impact climate regulation
No specific impact
Information on Ecosystem impact climate regulation
Not mentioned
Biophysical impacts
Information on retained water
15000m3 capacity in a constructed wetland
Water quality overall improvements
N/A info
Information on Water quality overall improvements
The wetland may have a beneficial effect on water quality
Soil quality overall soil improvements
N/A info
Information on Soil quality overall soil improvements
Biodiversity enhanced
