Our Company & Partners – Flood Protection Works (Since 1985)
Our company, together with our specialized partners in flood protection works, has been active since 1985. Flood protection works are interventions that reduce flood risk (river flooding, urban stormwater flooding, and coastal flooding), protecting people, infrastructure, and property. Categories of Flood Protection Works
A. “Retention / Storage” Works (holding the water)
Retention / detention basins (retention/detention basins) Small check dams, log barriers, and gabions in streams/torrents Reservoirs and flow regulation/control works B. “Conveyance / Relief” Works (safely directing the water) Stream/river training works (cross-sections, embankments/slopes, hydraulic structures) Stormwater drainage pipelines, main collectors, and catch basins/manholes Culverts, box culverts, and diversion channels
Pumping stations (when natural drainage is not available)
Green Solutions
What to choose depending on the problem Urban flooding (heavy rainfall, drains that “don’t pull”/don’t drain) → strengthen the stormwater drainage network + detention/retention tanks + green solutions. Flooding from a stream/river → flow regulation/river training + upstream retention works + bank protection + overflow/relief areas. Coastal storms → embankments/flood walls, pumping stations, and improved drainage behind the coastal front. Maintenance (makes a huge difference) Even with a perfect design, without maintenance the system fails: Cleaning drains/grates before the rainy season Removing debris/sediment from streams and culverts Checking pumping stations and backup power supplies
Cleaning, supervision, and maintenance of stormwater drains/catch basins by an experienced team, with consistency and responsibility.
“Protection / Isolation” Works (keeping the water out)
Embankments/levees, flood protection walls, mobile flood barriers Bank reinforcement / erosion protection (riprap, gabions) Coastal protection (where flooding is linked to sea storms/storm surges) “Nature-based Solutions” / Green Infrastructure Restoration of floodplains (overflow/relief areas) Afforestation reforestation and upstream erosion-control works Permeable pavements, bioswales, rain gardens, green roofs (SuDS/LID) Wetlands and retention/buffer zones
Flood Mitigation Works + Priorities
(General Implementation Plan)
1) Immediate actions (0–3 months) — “reduce risk right away”
- Clean stormwater inlets/catch basins, grates, and stormwater pipes (hotspots, main roads, low-lying areas).
- Remove obstructions from streams/culverts (debris, vegetation, sediment) + check for constrictions.
- Inspect critical structures: bridge culverts, crossings, box culverts (capacity/blockages).
- Operational readiness plan: overtopping points, evacuation routes, temporary barriers (sandbags/mobile barriers).
- Pump station checks (if any): functionality, backup power, test run before severe weather.
2) Short-term works (3–12 months)
- Upgrade/reinforce stormwater drainage networks in flooded zones: new inlets, larger pipe diameters, additional collectors.
- Local stream training works in high-risk reaches (bank repair, removal of constrictions, channel protection).
- Upstream erosion-control / detention measures (small check dams, log barriers, gabions) to reduce peak flows and sediment.
- Urban “green” measures in streets/squares: permeable surfaces, bioswales, rain gardens, to cut runoff peak.
- Improve drainage at low points (regrading, additional collection inlets).
3) Medium-term works (1–3 years)
- Retention/detention basins in suitable locations.
- Relief channels / diversion bypasses where feasible and needed.
- Bridge & culvert upgrades (insufficient cross-sections) — often the #1 cause of overtopping.
- Bank protection / slope stabilization (riprap, gabions) in erosion-prone sections.
- Floodplain reconnection / restoration (creating controlled flood expansion areas where possible).
4) Long-term (3–10 years)
- Major flow regulation projects (reservoirs, large-scale watershed management works).
- Levees / floodwalls in high-risk zones (with full impact assessment).
- Comprehensive stormwater system restructuring in dense urban areas (network separation, new trunk collectors).
- Coastal flood protection (where sea influence/storm surges exist): walls, floodgates, pump stations, backflow valves.