Hydrology and Flood Risk Studies in Tunisia
Hydrology studies in Tunisia protect your sites from intense rainfall and the flash floods of oueds (wadis). AHEC delineates catchments, calculates flood flows, maps flood-prone areas and sizes drainage and protection works. The hydrology study can be built straight into your EIE (environmental impact assessment).
Our services in Tunisia
01
Hydrological analysis and wadi floods
6
How much water can reach your site, and how often.
- Catchment delineation and characterisation
- Rainfall-runoff modelling
- Design storms (2- to 100-year return periods)
- Peak flows and frequency analysis
- Oued (wadi) flows and flash flood analysis
- Groundwater – surface water interactions
02
Flood risk
4
Knowing whether your site can flood and how to protect it.
- Flood modelling and mapping
- Capacity of existing structures (culverts, bridges, channels)
- Climate change effects on flood risk
- Flood protection design
03
Drainage and hydraulic structures
5
Getting stormwater off the site without damage.
- Stormwater networks for industrial sites and business parks
- Culvert, bridge and channel hydraulics
- Urban drainage network modelling
- Dams and hill reservoirs
- Erosion and sediment control
04
Software and methods
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Tools recognised by reviewers and lenders.
- HEC-HMS and HEC-RAS
- SWMM and InfoWorks ICM
- Rational method and SCS Curve Number method
References in Tunisia
- Stormwater review, coastal erosion and sea-level rise – UA1 tourist subdivision, Chaffar, Sfax, 2026
Group experience: more than 500 projects delivered by AHEC in Saudi Arabia, where the group holds NCEC Class A classification. See group projects →
Frequently asked questions
Is my site at risk of flooding?
A catchment hydrology study and flood modelling show the flood-prone areas and let us size the site’s protection and drainage.
Which software do you use?
HEC-HMS and HEC-RAS for catchments and watercourses; SWMM and InfoWorks ICM for drainage networks.
Can the hydrology study be part of the impact assessment?
Yes. The hydrology study feeds directly into the baseline and the impact analysis of the EIE.
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Let’s talk about your project
A site near an oued, or one that has already flooded? Send us its location: we tell you which hydrology study to plan.
Saudi Arabia
Tunisia