Hydraulic Engineering
Flood risk assessment, stormwater drainage design, dam safety analysis and hydrological modelling — building climate-resilient infrastructure across the Kingdom.
The opportunity.
Saudi Arabia's flash flood risk is one of the most acute infrastructure challenges facing the Kingdom. From Jeddah's historic flood events to urban expansion into wadi channels and the climate-driven intensification of rainfall extremes, hydraulic engineering is now a core requirement for virtually every major infrastructure and development project.
WPEC delivers advanced hydrological and hydraulic modelling, flood risk assessments, stormwater drainage design and dam safety analysis — equipping clients, government authorities and developers with the data and designs they need to make Saudi cities and infrastructure resilient to flood risk and climate change.
Capabilities.
Hydrological Analysis
- Rainfall-runoff modelling (HEC-HMS, SWMM)
- Design storm analysis and flood frequency
- Wadi catchment delineation and characterisation
- Climate change scenario analysis
- Arid-zone hydrology specialisation
- Remote sensing and GIS data processing
Hydraulic Modelling
- 1D and 2D flood inundation modelling (HEC-RAS)
- Urban flood modelling (MIKE Flood, SWMM)
- Wadi flow and sediment transport modelling
- Dam-break and overtopping consequence analysis
- Open channel and culvert hydraulic design
- Coastal and tidal influence studies
Flood Risk & Stormwater
- Flood risk assessment and mapping
- Vulnerability and consequence assessment
- Stormwater drainage master planning
- Retention and detention basin design
- Wadi crossing and culvert sizing
- Flood defence design and optimisation
Dam Safety & Infrastructure
- Dam safety inspections and assessments
- Probable maximum flood (PMF) analysis
- Spillway adequacy and upgrade design
- Dam break consequence assessment
- Emergency action plan (EAP) preparation
- NEOM and gigaproject wadi engineering
Our methodology.
Data Acquisition
Topographic survey (LiDAR or conventional), rainfall data analysis, satellite imagery processing and catchment GIS data compilation.
Hydrological Modelling
Calibrated rainfall-runoff models to generate design flood hydrographs for a range of return periods — including climate change uplift scenarios.
Hydraulic Modelling
1D/2D HEC-RAS models to map flood extents, depths and velocities — providing the spatial data needed for risk assessment and design.
Risk Assessment
Flood risk mapping, consequence and vulnerability assessment, and identification of the most cost-effective flood risk management measures.
Design Development
Flood defence, drainage and retention designs developed, optimised and tested in the hydraulic model to verify performance against design standards.
Reporting & Authority Approval
Technical reporting to regulatory authority requirements, with liaison and response to authority queries to secure flood risk approval.
Tools & software.
HEC-RAS 2D
1D and 2D flood inundation and dam-break modelling
HEC-HMS
Rainfall-runoff modelling and hydrograph generation
MIKE Flood
Urban flood and integrated 1D/2D modelling
ArcGIS / QGIS
Flood map production, catchment GIS and spatial analysis
SWMM
Urban stormwater drainage network modelling
LiDAR Processing
High-resolution terrain model creation for hydraulic models
Related services.
Have a project in mind?
Let's engineer it.
From feasibility to commissioning — our consultants partner with utilities, developers and government clients across the Kingdom.