RiverGuard by ByteMe

💎 Idea

RiverGuard addresses one of Romania's most pressing environmental enforcement challenges: illegal gravel extraction from riverbeds. Sand and gravel mining from rivers is the 4th largest organised crime activity worldwide, costing Europe €80–230 billion annually in environmental damage, while growing at 5–7% per year.

In Romania specifically, riverbank erosion driven by illegal extraction has gone largely unmonitored. Authorities lack the tools to detect violations early, predict damage, or build a legal case. Two converging EU deadlines make this urgent: the European Nature Restoration Directive (May 2026) classifies illegal gravel extraction as a criminal offence with fines up to €40 million, and Romania's National Restoration Plan (September 2026) mandates that rivers and lakes be addressed as a priority, with funded monitoring infrastructure in place.

RiverGuard solves this with an AI-powered web platform that delivers near real-time riverbank monitoring, erosion forecasting, and early warning alerts, giving Romanian authorities the evidence and predictive capability they need to act before damage becomes irreversible.

🛰️ EU Space Technologies

RiverGuard is currently built on a fusion of Earth Observation data from the Copernicus programme and complementary sensor networks:

Copernicus Sentinel-2 multispectral imagery is used to detect changes in riverbank surface coverage over time, identifying signs of active extraction through vegetation loss, exposed sediment, and water turbidity shifts using NDVI and NDWI indices. Its 10 m resolution enables precise change detection at the site level.

Copernicus Sentinel-1 C-band SAR radar provides cloud-independent, day-and-night monitoring, detecting surface disturbance patterns consistent with machinery activity and sediment displacement through differential backscatter analysis, critical in Romania where cloud cover often limits optical observation.

These satellite data streams are fused with ground-based hydrological sensor data (water level, flow rate, turbidity) and weather API inputs to train and run the AI erosion forecasting model. The result is a spatially resolved Riverbank Risk Index updated on a monthly cadence, which authorities can query through an intuitive web interface. The use of free, open Copernicus data is what makes RiverGuard low-cost and immediately deployable, unlike competitors such as MapX, which carry high licensing fees that block adoption by public institutions.

Looking ahead, RiverGuard plans to pivot to Airbus SPOT 6 & SPOT 7 imagery as the platform matures. At 1.5 m² per pixel, SPOT 6/7 would deliver forensic-grade resolution where individual excavation sites, access tracks, and stockpile areas along riverbeds become clearly identifiable, making the imagery legally actionable as direct evidence of illegal extraction activity. This upgrade path is a core part of our roadmap as we move toward prosecution-ready monitoring at scale.

🌊 EU Space for Water

RiverGuard addresses Challenge 3: Disaster risk monitoring.

Illegal gravel and sand extraction from riverbeds is one of the leading causes of riverbank collapse, habitat destruction, flora and faun disturbance, bridge collapse and long-term hydrological degradation across Central and Eastern Europe. In Romania, rivers like the Olt, Argeș, and Siret have experienced accelerating erosion, threatening freshwater ecosystems, fish spawning grounds, floodplain wetlands, and downstream drinking water quality.

By providing continuous satellite-based surveillance, RiverGuard enables:

• Early detection of extraction activity before irreversible damage occurs
• Evidence generation for criminal prosecution under the new EU directive
• Prioritised response: authorities can deploy inspectors to the highest-risk sites first
• Long-term baseline data for Romania's National Restoration Plan, tracking river recovery over time

The platform directly supports Romania's obligation to monitor and fund river restoration, and provides a replicable model for other EU member states with similar illegal extraction problems — with licensing to other countries built into the revenue model.

🤼 Team

Maniu Diana — Project Management & Research 

Diana coordinates the team's roadmap, manages deliverables and timelines, and leads the regulatory and policy research underpinning RiverGuard's compliance with EU directives.

Gligor Sorana — AI & Machine Learning 

Sorana drives the development of RiverGuard's erosion forecasting model, integrating satellite imagery, weather data, and sensor inputs to train and tune the predictive AI pipeline.

Robert Bardi — Software Development & Platform Engineering 

Robert builds and maintains the RiverGuard web platform, handling backend infrastructure, satellite data ingestion pipelines, and the real-time alerting system.

Catalin Borzei — Business Strategy & Partnerships 

Catalin leads the commercial and go-to-market strategy for RiverGuard, including government contract negotiations and stakeholder engagement with Romanian environmental authorities.

Links:

• Web application - https://demoriver.vercel.app/
• GitHub - https://github.com/ztinyz/Cassini