Aqua-Nile
Executive Summary
Mesfin Hagos Tewolde is a senior hydrologist and civil engineer with extensive practical and academic experience in engineering hydrology, design hydrology, flood routing, hydraulic and hydrologic modelling, reservoir studies, dam and irrigation infrastructure, GIS, remote sensing, and technical reporting. His profile combines field-based civil engineering, hydrological specialization, research collaboration, technical publishing, modelling discipline, and independent consultancy.
He holds a Master of Science in Hydrological Engineering from the University of KwaZulu-Natal, a BScEng in Civil / Irrigation Engineering from Arba Minch Water Technology Institute, and advanced postgraduate studies in urban planning through the École Polytechnique Fédérale de Lausanne (EPFL) and the University of Geneva. He also pursued doctoral-level studies on two occasions: first in civil engineering-related research at the Central University of Technology in Bloemfontein, South Africa, and later at the University of Fribourg, Switzerland. Both doctoral paths were interrupted due to financial constraints. Over the years, he has contributed to hospital construction, small-scale earth dam construction, irrigation system development, hydrological research, flood analysis, river studies, reservoir-routing investigations, and catchment-based modelling exercises. His professional experience spans Eritrea, Ethiopia, South Africa, and Switzerland, including public-sector hydrology work in the Canton of Geneva, as well as advanced GIS and geomatics studies in Swiss academic institutions.
His experience is particularly relevant to assignments involving updated flood hydrology, design rainfall assessment, reservoir studies, dam-related hydraulic review, catchment-based water-resources analysis, and technically grounded reporting for infrastructure planning and safety-oriented decision-making.
Effective engineering consultancy is shaped not by theory alone, but by field-tested understanding, disciplined modelling, careful judgment, practical supervision, and the ability to transform complex water challenges into clear, dependable solutions.
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Mesfin Hagos Tewolde’s profile reflects broad and integrated experience in hydrological analysis, flood routing, design rainfall estimation, hydraulic modelling, river studies, reservoir routing, dam and irrigation infrastructure, construction supervision, geospatial analysis, flood mapping, water-resources interpretation, and technical communication through maps, reports, articles, and modelling outputs.
Core Areas of Expertise
- Engineering hydrology and design hydrology
- Design rainfall estimation using Smithers and Schulze (2002)
- Flood routing in ungauged catchments
- Hydraulic and hydrologic modelling using HEC-RAS and HEC-HMS
- Reservoir routing and reservoir behaviour analysis
- Water balance analysis and reservoir performance interpretation
- Catchment studies, discharge estimation, and flood hazard mapping
- SWAT-based catchment modelling and watershed analysis
- River analysis and floodplain assessment
- Small-scale earth dam and irrigation infrastructure design and supervision
- Climate-informed hydrological review for dam and water-resources studies
- GIS, remote sensing, QGIS, ArcGIS, and spatial hydrology analysis
- Bentley pondpack, flowmaster and Civilstorm analysis
Professional Roles
- Independent Civil Engineer and Hydrologist
- Hydrologist on public-sector technical mission in Geneva
- Scientific Collaborator / Doctoral Candidate in Geomatics
- Research Collaborator in Hydrology and Rainwater Harvesting
- Construction Engineer and Design Engineer
- Surface Irrigation and Dam Infrastructure Engineer
- Water Resources and Catchment Analysis Contributor
Hydrology, Hydraulic Modelling, Water Resources, and Infrastructure Expertise
- Hydrological modelling, design flood estimation, and flood routing in ungauged catchments.
- Design rainfall estimation using South African hydrological approaches, including Smithers and Schulze (2002).
- Hydraulic modelling of rivers and flood-prone systems using HEC-RAS, including real-data applications and long-reach preparation.
- HEC-HMS-based rainfall-runoff and reservoir routing analysis, including large dam and reservoir studies.
- Reservoir routing using spreadsheet methods and software-supported analysis.
- Preparation of CN grids from land-use and soil layers using ArcGIS for hydrologic modelling input development.
- Catchment studies, SWAT/QSWAT modelling, ArcSWAT comparison work, and flood hazard mapping.
- Flood investigation using Google Earth Engine, satellite imagery, and ArcGIS, including flood extent interpretation, inundation pattern assessment, and comparison of modeled and observed flood conditions.
- Satellite-based reservoir monitoring, reservoir surface mapping, and reservoir volume-related analysis using geospatial and remote-sensing techniques.
- Remote sensing, flood inundation assessment, and reservoir status monitoring using geospatial techniques.
- Construction supervision of hospital buildings, irrigation systems, canals, drops, culverts, and small-scale earth dams.
- Technical reporting, publication, and interpretation of hydrology, flood, and infrastructure-related findings.
Water Demand, Climate, and Dam-Safety-Oriented Hydrology
Mesfin Hagos Tewolde’s hydrological profile is also relevant to assignments requiring integrated assessment of water demand, reservoir performance, climate-informed hydrology, and dam-related flood review. His experience combines design hydrology, reservoir routing, catchment analysis, hydraulic modelling, and practical dam engineering understanding, allowing him to relate hydrological findings to crest levels, spillway behaviour, flood handling, storage performance, and broader water-resources decision-making.
Relevant Water Resources Strengths
- Water balance interpretation and reservoir behaviour analysis
- Assessment of inflow, runoff, storage, and routing relationships
- Design rainfall estimation using Smithers and Schulze (2002)
- Dry-year, wet-year, and scenario-based hydrological thinking
- Climate-informed review of flood and runoff behaviour
- Catchment-based support for dam and bulk water infrastructure planning
Dam-Oriented Hydrology and Review Capacity
- Flood hydrology relevant to spillway and reservoir safety review
- Reservoir routing and hydrograph-based interpretation
- Hydraulic modelling support for downstream and river-system assessment
- Understanding of how flood levels affect crest height, freeboard, and dam footprint
- Practical appreciation of spillway, outlet, embankment, and construction implications
- Technical reporting suited to review, update, and decision-support assignments
Selected Certificates and Specialized Training
Recent Hydrology, Hydraulic Modelling, and GIS Certificates
- 1D River Modelling using HEC-RAS (2023)
- 2D River Modelling in HEC-RAS (2023)
- Flood Risk Assessment with HEC-RAS, HEC-HMS, and QGIS (2023)
- Groundwater Potential Zones GIS – ArcGIS (2023)
- Water Resources Management using WEAP (2022)
- Watershed Simulation using ArcSWAT. Get Discharge, Rainfall‐Runoff Modeling of Ungauged Catchments.
Engineering Software and Design Training
- Revit Basic and Advanced Training (2018)
- AutoCAD Basic and Advanced Training (2018)
- Pump Selection V8i; Water Distribution and Stormwater Modelling V8i (2012)
Foundational Water Management Training
- NRCS Sponsored Water Management Courses (1997)
Core Technical and Professional Strengths
Professional Profile
Professional Memberships and Recognitions
European Engineer (EUR ING)
Conferred by FEANI as European Engineer.
Mandataire Professionnellement Qualifié (MPQ), Geneva
Recognized by the Republic and Canton of Geneva as professionally qualified independent civil engineer.
SIA Membership
Admitted as individual member of the Swiss Society of Engineers and Architects.
SCNAT Professional Profile
Swiss Academy of Sciences expert listing in hydrology and civil engineering.
Education
University of KwaZulu-Natal, South Africa
Master of Science in Hydrological Engineering (MScEng). Research title: Flood Routing in Ungauged Catchments Using Muskingum Methods.
Arba Minch Water Technology Institute / Arba Minch University, Ethiopia
BScEng in Civil / Irrigation Engineering. Graduation project: Hare Irrigation Project Design Report.
Further Education and Professional Development
UNIGE & EPFL, Switzerland
Continuing education in Geographic Information in Urban Planning (CAS), including QGIS-based spatial analysis.
CADSchool, Geneva, Switzerland
Advanced training in Revit and AutoCAD 2D; professional stage completed at CSD Ingénieurs SA.
HES-SO Lausanne, Switzerland
Advanced studies in geomatics, project management, communication, construction law, structures, water management, cartography, GIS, water treatment, geology, and hydrogeology.
University of Fribourg, Switzerland
Doctoral candidate / research collaborator in geomatics, ArcGIS, IDRISI, PCI-Geomatica, ERDAS, satellite imagery, and SLEUTH urban growth modelling.
Central University of Technology, South Africa
Research collaboration on small-scale rainwater harvesting technologies for Southern Africa.
University of Bern, Switzerland
10-day training in GIS information management, ArcView, and GPS.
NRCS, USA
Six-month training in hydrology, geology, structural analysis, irrigation engineering, soil mechanics, and project documentation.
Selected Career Highlights
Strong South African Hydrology Foundation
Advanced academic and research experience developed in South Africa, including UKZN and CUT, with continued later work on KZN flood, catchment, and hydrological analyses.
Strong Depth in Dam Hydrology and Modelling
Specialized academic and professional track record in flood routing, design hydrology, reservoir routing, HEC-RAS, HEC-HMS, water balance interpretation, and catchment analysis.
Practical Construction and Dam Background
Field and supervision experience in hospital construction, earth dams, irrigation systems, canal structures, spillway-related works, and hydraulic infrastructure.
Strong GIS and Spatial Hydrology Capacity
Experienced in GIS, remote sensing, catchment modelling, flood hazard visualization, and technical mapping of flood and reservoir systems.
Employment Record
Independent Civil Engineer and Hydrologist / Hydro Engineers
Independent consulting, hydrological studies, flood routing analysis, GIS work, technical note preparation, reservoir studies, and water-related engineering assignments.
CSD Ingénieurs SA
3D modelling of buildings with Revit and related BIM-oriented tools such as Revizto, Navisworks, BIM360, and Solibri.
SECOE, Republic and Canton of Geneva
Temporary hydrology mission involving low-flow discharge analysis, HEC-RAS modelling of the Aire River, and hydrological field support.
University of Fribourg
Scientific collaborator and doctoral candidate working on hydrology, geomatics, GIS, photogrammetry, orthorectification, and land-use related modelling.
Central University of Technology
Research collaborator on small-scale rainwater harvesting technology for Southern Africa.
University of KwaZulu-Natal
Assistant researcher in hydrology and hydrological modelling.
Ministry of Defence
Construction engineer for Assab hospital, supervising building construction, concrete control, reinforcement placement, and construction materials management.
Ministry of Agriculture
Construction and design engineer for irrigation systems, drop structures, earth canals, earth dams, and reservoirs.
SAERT, Tigray Region
Construction engineer for Adigudem surface irrigation infrastructure and small earth-dam related works.
Relevant Experience in Hydrology, River Studies, Reservoirs, and Water Infrastructure
Flood Routing and Design Flood Estimation
Specialized in flood routing in ungauged catchments using Muskingum methods, supported by MSc research, journal publication, conference presentation, and book publication.
Design Rainfall and South African Hydrology
Strong familiarity with South African hydrological methods, including design rainfall estimation approaches such as Smithers and Schulze (2002), and broader KZN catchment analysis contexts.
River Hydraulics and HEC-RAS Modelling
Applied HEC-RAS to the Aire River in Geneva and to South African catchment and flood-related analyses, including 1D and 2D model applications and long-reach preparation.
Reservoir Routing and Dam Studies
Conducted reservoir routing studies using spreadsheets and HEC-HMS, including analyses related to major reservoir systems and dam hydrology.
Catchment and Flood Hazard Analysis
Worked on KZN flood, inundation, watershed, and GIS-based catchment analysis using ArcGIS, QSWAT, HEC-HMS, HEC-RAS, and related hydrological tools.
Dam and Irrigation Infrastructure
Participated in design, supervision, and implementation of small-scale earth dams, irrigation canals, drop structures, culverts, and related hydraulic works.
Selected Project Exposure
Flood Routing in Ungauged Catchments
Research and technical contribution focused on Muskingum-based flood routing and hydrological interpretation in ungauged basins.
KZN Catchment and Flood Analyses
ArcGIS, QSWAT, HEC-HMS, HEC-RAS, and flood mapping analyses for KwaZulu-Natal catchments and flood-prone areas.
uMngeni River 2D HEC-RAS Analysis
Hydraulic and flood-related interpretation using 2D HEC-RAS workflow in KwaZulu-Natal, South Africa.
Reservoir Routing Studies
Reservoir routing using spreadsheet methods and HEC-HMS, including large-reservoir hydrology exercises.
HEC-RAS Analysis of the Aire River, Geneva
Hydraulic analysis of approximately 5 km of river reach to evaluate safe discharge conditions around Pont-Rouge and flood control implications.
Halhal Small Scale Earth Dam
Construction-related involvement in dam body as site engineer, spillway, outlet, and downstream filtration works.
Adigudem Surface Irrigation Project
Construction of irrigation canals and drop structures for a 136-hectare surface irrigation system.
Representative Responsibilities
- Hydrological and hydraulic analysis of catchments, rivers, and reservoirs.
- Flood routing, discharge estimation, and engineering interpretation of river flows.
- Preparation of modelling inputs and execution of HEC-RAS and HEC-HMS simulations.
- Design rainfall interpretation and design-hydrology support for water infrastructure.
- Reservoir studies, routing analysis, and water balance interpretation.
- Design and supervision of dams, canals, drops, chutes, culverts, and irrigation structures.
- GIS analysis, flood hazard mapping, land-use and environmental spatial studies.
- Topographic surveying and integration of field data into GIS-based outputs.
- Climate-informed review of flood and water-resource scenarios.
- Technical report writing, publication, seminar preparation, and engineering communication.
- Independent research and digital portfolio development in hydrology and civil engineering.
- Construction supervision of civil works including hospital buildings and infrastructure.
Representative Project Experience
| Project | Role | Location / Institution | Relevant Experience |
|---|---|---|---|
| Flood Routing in Ungauged Catchments | MSc Researcher / Author | University of KwaZulu-Natal, South Africa | Advanced hydrological research on Muskingum methods for ungauged basins, leading to conference, journal, and book outputs. |
| KZN Catchment and Flood Studies | Hydrological Analyst / Independent Researcher | KwaZulu-Natal, South Africa | Flood, inundation, watershed, and GIS-based analyses using ArcGIS, HEC-RAS, HEC-HMS, SWAT, and QSWAT workflows. |
| Reservoir Routing Analyses | Hydrological Modelling Contributor | Independent technical studies | Reservoir routing using spreadsheet methods and HEC-HMS, with application to large reservoir and dam-hydrology interpretation. |
| HEC-RAS Analysis of the Aire River | Hydrologist | SECOE, Geneva, Switzerland | Hydraulic modelling and low-flow assessment in support of river and infrastructure analysis. |
| Halhal Small Scale Earth Dam | Construction and Design Engineer | Ministry of Agriculture, Eritrea | Dam body, spillway, outlet, and filtration works under field engineering conditions. |
| Adigudem Surface Irrigation Project | Project Engineer / Construction Engineer | SAERT, Mekelle, Ethiopia | Construction of drop structures, canals, and irrigation infrastructure over a surface irrigation scheme. |
Training, Research, and Digital Knowledge Contributions
Mesfin Hagos Tewolde combines engineering practice with research, technical writing, and professional communication. His body of work includes publications, conference contributions, technical notes, GIS-based demonstrations, reservoir and flood visualization outputs, climate-related mapping, and hydrology-focused digital materials connected to catchment and infrastructure analysis.
Professional Value in Hydrology and Civil Engineering Consultancy
Mesfin Hagos Tewolde combines long-standing field experience with specialization in hydrology, hydraulic modelling, civil engineering supervision, geospatial analysis, digital modelling, international technical exposure, and a substantial body of authored technical work. His profile is particularly well suited to assignments involving engineering hydrology, design rainfall estimation, flood routing, reservoir and catchment analysis, hydraulic infrastructure review, dam and irrigation support, flood hazard mapping, and technically grounded consultancy delivered with both analytical depth and practical engineering judgment. He is currently preparing a book on flood studies in the uMngeni Catchment, South Africa, based on analyses undertaken using HEC-RAS, SWAT, HEC-HMS, and ArcGIS for flood assessment and interpretation.
Publications, Books, Reports, and Technical Contributions
Book
Tewolde, M.H. Flood Routing in Ungauged Catchments using Muskingum Methods, Universal Publishers. Later edition references may also be added where appropriate.
Peer-Reviewed Article
Tewolde, M.H. and Smithers, J.C. (2006). Flood routing in ungauged catchments using Muskingum methods. Water SA.
Major Technical Reports
Smithers, J.C. et al. including Tewolde, M.H. (2007). Development and assessment of a continuous simulation modelling system for design flood estimation. WRC Report No. 1318/1/07.
van Heerden, P.S. et al. including Tewolde, M.H. (2009). Integrating and Updating of SAPWAT and PLANWAT to Create a Powerful and User-Friendly Irrigation Planning Tool. WRC Report No. TT 391/08.
Conference and Seminar Contributions
Poster presentation in Bonn, Germany (2005) on flood routing in ungauged catchments.
Seminars and technical papers on geomorphology, forest hydrology, hydrological dam design, photogrammetry, SLEUTH preparation, rainwater harvesting, and earth-fill dam reporting.