WalloniaInternational
Flood Protection

Can Mons-Borinage keep flood risk down as Wallonia rebuilds its defences?

Mons-Borinage is moving into a new phase of flood prevention, with several projects expected over the coming years in the Hainaut sub-region around Mons, according to DH. The immediate story is practical.

Belgium Impulse Editorial·26 June 2026·2 min read·
Well established· 1 primary source + 2 official documents + 1 independent reporting source

In 30 seconds

  • Several flood-control projects are planned in Mons-Borinage over the coming years, according to DH.
  • The EU Floods Directive requires risk assessment, mapping and flood-risk management plans across member states.
  • Mons-Borinage sits in Hainaut, around the Haine and Trouille water system and dense former industrial areas.
  • Walloon, municipal and intermunicipal actors must coordinate sewerage, runoff, planning and emergency preparedness.

Place

Mons

city around which Mons-Borinage is located

Why it matters

city around which Mons-Borinage is located

About

Mons is a commune in the Var department in the Provence-Alpes-Côte d'Azur region in southeastern France.

-Borinage is the arrondissement around Mons in
Place

Hainaut

province containing Mons-Borinage and affected municipalities

Why it matters

province containing Mons-Borinage and affected municipalities

About

Hainaut, historically also known as Heynault in English, is the westernmost province of Wallonia, the French-speaking region of Belgium.

, including municipalities such as
Place

Boussu

municipality included in Mons-Borinage

Why it matters

municipality included in Mons-Borinage

About

Boussu is a municipality of Wallonia located in the province of Hainaut, Belgium.

,
Place

Colfontaine

municipality included in Mons-Borinage

Why it matters

municipality included in Mons-Borinage

About

Colfontaine is a municipality of Wallonia located in the province of Hainaut, Belgium.

, Dour, Frameries, Quaregnon,
Place

Quiévrain

municipality included in Mons-Borinage

Why it matters

municipality included in Mons-Borinage

About

Quiévrain is a municipality of Wallonia located in the province of Hainaut, Belgium.

and
Place

Saint-Ghislain

municipality included in Mons-Borinage

Why it matters

municipality included in Mons-Borinage

About

Saint-Ghislain is a city and municipality of Wallonia located in the province of Hainaut, Belgium.

. Its flood issue is shaped by dense urbanisation, former industrial land, the
Place

Haine

river-basin area shaping flood-risk planning

Why it matters

river-basin area shaping flood-risk planning

About

The Haine is a river in southern Belgium (Hainaut) and northern France (Nord), right tributary of the river Scheldt. The Haine gave its name to the County of Hainaut, and the present province of Hainaut. Its source is in Anderlues, Belgium. As the western end of the sillon industriel, Wallonia's industrial backbone, it flows through the heavily industrialized Borinage region, notably the towns La Louvière, Mons and Saint-Ghislain.

basin, the
Place

Trouille

river near Mons shaping flood risk

Why it matters

river near Mons shaping flood risk

About

De Trouille is een zijriviertje van de Hene en behoort tot het stroomgebied van de Schelde.

near Mons and heavy-rain runoff from built-up areas. The main Belgian stakeholders are the affected communes, the City of Mons, Wallonia’s public administration, SPGE,
Organisation

IDEA

water and sewerage operator involved in flood-risk works

Why it matters

water and sewerage operator involved in flood-risk works

About

Idea is a genus of butterflies known as tree nymphs or paper butterflies. The member species are concentrated around South-East Asia. See Sevenia for the genus of African tree nymphs. These slender butterflies have very large, papery white wings with black veins and markings. They stay high up in the treetops where they flap around in slow flight. Like most other monarch butterflies, wood nymphs are poisonous, and the striking colour patterns signal this.

, local emergency zones and residents in lower-lying streets. At EU level, the framework is Directive 2007/60/EC on flood-risk assessment and management.

Background

Flooding has long been part of the geography of the Haine valley and the Mons area, where historic marshes, river works, mining-era development and later urbanisation changed how water moves. The

Event

2021 floods in Belgium

flood event that shifted the political baseline for flood prevention

Why it matters

flood event that shifted the political baseline for flood prevention

, which struck Wallonia hardest, shifted the political baseline: flood prevention is now treated as critical infrastructure, not only as emergency management.

Context & what happens next

What to do

Residents should follow municipal notices on works, check flood-risk and insurance information, keep drains and private runoff systems maintained where required, and monitor warnings during intense rainfall.

Impact

Regional — The direct impact is in Wallonia, especially Hainaut and the Mons-Borinage municipalities exposed to runoff, sewer overflow and river or stream saturation. Works may disrupt roads and neighbourhoods in the short term but are intended to reduce damage from future storms.

Evidence
Well established · 1 primary source + 2 official documents + 1 independent reporting source
Explore evidence
EUR-Lex, Directive 2007/60/EC on flood risks
Published:
23 Oct 2007, 02:00
Retrieved by ODIN:
26 Jun 2026
Read original
AP, report on European Environment Agency climate-risk assessment
Published:
11 Mar 2024, 01:00
Retrieved by ODIN:
26 Jun 2026
Read original
European Environment Agency, European Climate Risk Assessment
Published:
11 Mar 2024, 01:00
Retrieved by ODIN:
26 Jun 2026
Read original
SPW Wallonie, flood information portal
Publication date unavailable
Retrieved by ODIN:
26 Jun 2026
Read original

Voices & reactions

What the main actors are doing

Reported positions, summarised — not direct quotations

Walloon and municipal flood managers

Regional and local authorities frame the Mons-Borinage work as practical protection: reduce runoff, improve drainage, maintain waterways and prepare neighbourhoods before storms hit. This Belgian framing is administrative and territorial, focused on communes, sewer networks and river basins rather than the broader disaster narrative common in international coverage.

Residents and flood-exposed households

Households in vulnerable streets often judge policy by delivery: whether drains back up less often, whether works arrive before another storm season, and whether insurance and municipal communication are clear. Their perspective can conflict with official planning cycles when risk maps and long-term projects do not yet change daily exposure.

EU climate-risk institutions

The EU-side framing is broader: floods are part of Europe’s adaptation deficit. The Floods Directive asks states to plan around prevention, protection and preparedness, while the EEA warns that climate risks are growing faster than preparedness. That makes Mons-Borinage a local test of a continental policy problem.

The story, connected

Explore the people, places and ideas in this story

Go beyond the headline. Open a card for sourced context, maps, official links and the other subjects connected to this report.

Places

Hainaut

province containing Mons-Borinage and affected municipalities

In this story

province containing Mons-Borinage and affected municipalities

Background

Hainaut, historically also known as Heynault in English, is the westernmost province of Wallonia, the French-speaking region of Belgium.

Places

Mons

city around which Mons-Borinage is located

In this story

city around which Mons-Borinage is located

Background

Mons is a commune in the Var department in the Provence-Alpes-Côte d'Azur region in southeastern France.

Organisations

IDEA

water and sewerage operator involved in flood-risk works

In this story

water and sewerage operator involved in flood-risk works

Background

Idea is a genus of butterflies known as tree nymphs or paper butterflies. The member species are concentrated around South-East Asia. See Sevenia for the genus of African tree nymphs. These slender butterflies have very large, papery white wings with black veins and markings. They stay high up in the treetops where they flap around in slow flight. Like most other monarch butterflies, wood nymphs are poisonous, and the striking colour patterns signal this.

Places

Haine

river-basin area shaping flood-risk planning

In this story

river-basin area shaping flood-risk planning

Background

The Haine is a river in southern Belgium (Hainaut) and northern France (Nord), right tributary of the river Scheldt. The Haine gave its name to the County of Hainaut, and the present province of Hainaut. Its source is in Anderlues, Belgium. As the western end of the sillon industriel, Wallonia's industrial backbone, it flows through the heavily industrialized Borinage region, notably the towns La Louvière, Mons and Saint-Ghislain.

Places

Trouille

river near Mons shaping flood risk

In this story

river near Mons shaping flood risk

Background

De Trouille is een zijriviertje van de Hene en behoort tot het stroomgebied van de Schelde.

Places

Boussu

municipality included in Mons-Borinage

In this story

municipality included in Mons-Borinage

Background

Boussu is a municipality of Wallonia located in the province of Hainaut, Belgium.

Places

Colfontaine

municipality included in Mons-Borinage

In this story

municipality included in Mons-Borinage

Background

Colfontaine is a municipality of Wallonia located in the province of Hainaut, Belgium.

Places

Quiévrain

municipality included in Mons-Borinage

In this story

municipality included in Mons-Borinage

Background

Quiévrain is a municipality of Wallonia located in the province of Hainaut, Belgium.

Places

Saint-Ghislain

municipality included in Mons-Borinage

In this story

municipality included in Mons-Borinage

Background

Saint-Ghislain is a city and municipality of Wallonia located in the province of Hainaut, Belgium.

Concepts

2021 floods in Belgium

flood event that shifted the political baseline for flood prevention

In this story

flood event that shifted the political baseline for flood prevention

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