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Wetland restorationPlanned

Upper Rhine Gravel Bar Rehabilitation

Removal of channelisation structures to restore braided river morphology and gravel bar habitats for spawning fish in the Upper Rhine.

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Oberrhein · HydroBASINS L8: 2020044760
Mar 2025 – ongoing
Regierungspräsidium Freiburg / IKSR / Lachsprojekt Rhein
210 ha · € 2.8M
Sub-basin location
HydroBASINS Level 8 polygon

Sub-basin boundary: HydroBASINS Level 8 (HYBAS_ID 2020044760) · Polygon is approximate at this zoom

Basin Health Impact
Before vs. projected after project contribution
Water QuantityNo signal
Before
64Risk
Water QualityNo signal
Before
78Good
Riparian Habitat+8 pts
Before
74Good
After
82Good
Composite BHS contribution+3 pts

Weighted: Quantity × 0.45 + Quality × 0.20 + Habitat × 0.35

Ground Validation
IoT sensors · Galileo/EGNOS certified
Lobith Discharge Gauge
Discharge
Galileo ±0.3m
Sentinel-1 SAR coherence
Satellite: 1910 m³/sIn-situ: 1840 m³/s
96% agreement
Rotterdam Estuary Turbidity Probe
Turbidity
Galileo ±0.4m
Sentinel-2 B04 reflectance
Satellite: 19.8 NTUIn-situ: 18.4 NTU
93% agreement

In-situ readings from Galileo/EGNOS-certified IoT devices validate satellite-derived indices. High agreement confirms satellite-based BHS scoring for CSRD E3-4 discharge evidence.

Delivery metrics

Budget
€ 2.8M
Area
210 ha
Timeline
Mar 2025 – ongoing
Status
Planned
Delivered
Target: 6 km channel remeandering; 210 ha gravel bar habitat
Compliance exports
Two primary live clicks: project + compliance JSON
  • CSRD
    ESRS E3-4Water consumption, basin stress and restoration contribution evidence
  • CSDDD
    Article 8Adverse-impact mitigation programme linked to basin outcomes
  • SBTN
    Step 3 — QuantityFreshwater target-setting inputs at sub-basin level
  • TNFD
    LEAP — LocateNature-risk evidence for geolocated restoration activity
Using live score context
Using live basin score
Audit trail
Replay the evidence lineage for this stewardship project
  1. Project geography
    HydroBASINS Level-8 anchor and project centroid used for repeatable basin-level evidence generation.
    hybas=2020044760
center=7.70000, 47.90000
  2. Evalscript versions
    Pinned, content-addressed evalscripts. Replayable byte-for-byte.
    sentinel2-bhs-combined-v1@static-snapshot
outputs=ndwi,mndwi,ndvi,ndmi,turbidity,chla,bare
  3. Source scenes
    Recent STAC scene IDs attached to the basin score run for audit replay.
    No STAC scene IDs attached
  4. Scoring function
    Basin sub-indices weighted via bhs-v0.5.0.
    quantity*0.45 + habitat*0.35 + quality*0.2
  5. Computation provenance
    Run signature stored with the exported project evidence pack.
    run=static-snapshot · at=2026-04-28T19:55:06.667Z

Partners

Operator
Regierungspräsidium Freiburg
Partner
IKSR / Lachsprojekt Rhein

Basin context

Rhine Basin
BHS 71 · 2 projects · 58M people
View all projects in Rhine Basin →