1995 Engineering Study
The original HARE Irrigation Project Design Report is preserved as a record of engineering education, teamwork and applied irrigation design.
Engineering legacy · 1995–Present
HARE Irrigation Project
Preserving an important engineering work, honouring the professionals who created it, and revisiting the project through modern hydrology, GIS, DEM analysis, watershed modelling and water-resources engineering.
Why HARE matters
A project, a generation of engineers, and a living technical archive
Professional Legacy
The site documents how the four original team members developed into experienced professionals across hydrology, irrigation, dams, water leadership, water supply and sanitation.
Modern Reassessment
The original work is now being reassessed using modern DEM products, GIS, satellite information, rainfall analysis, HEC-HMS event modelling, SWAT continuous watershed simulation and updated engineering interpretation.
HARE Revisited · Hydrological models
From catchment reconstruction to modern modelling
The modern reassessment has progressed beyond mapping and data preparation into detailed hydrological and watershed modelling. HEC-HMS and SWAT are used for different but complementary engineering purposes.
HEC-HMS
Design-flood analysis completed
114.4 m³/s
Event-based rainfall-runoff modelling has been completed for the Hare diversion weir. The present 50-year HEC-HMS simulation gives a design-event outlet peak of 114.4 m³/s.
Explore HEC-HMS →SWAT
Two simulations completed
17 subbasins · 161.95 km²
Watershed delineation, HRUs, NASA POWER climate preparation and two continuous SWAT simulations have been completed. The present interpretation covers water balance, streamflow, groundwater, erosion and sediment.
Explore SWAT →Sediment Assessment
Active engineering interpretation
58.4 Mg/ha
The current SWAT reference run indicates an average upland sediment yield of approximately 58.4 Mg/ha and a strong simulated tendency toward in-stream deposition. Present field photographs of the Hare diversion also show substantial gravel, sand and finer sediment accumulation.
View SWAT results →The original HARE team
Four engineers, four distinct professional journeys
Eng. Mesfin Hagos Tewolde
Irrigation Engineer · Hydrologist · Civil Engineer
Hydrology, research, modelling, GIS and water knowledge innovation.
View profile →Dr. Eng. Mitiku Bedru Gochefo
Hydraulic Engineer · Irrigation Specialist · Water Resources Leader
Engineering, institutional leadership, water policy and international cooperation.
View profile →Eng. Seid Shimelis
Irrigation & Water Resources Engineer
Dam and irrigation design, headworks, major projects and senior technical leadership.
View profile →Eng. Tamir Mitiku Habeteyes
Hydraulic & Hydropower Engineer · Water & Sanitation Specialist
Irrigation, water supply, sanitation and the engineered water cycle.
View profile →The book
From the original report to a professional publication
The HARE book preserves the original engineering study while revisiting calculations, assumptions, hydrological methods, irrigation requirements, drainage, canal systems, hydraulic structures, watershed modelling, sediment behaviour, figures, tables and technical explanations.
Book pageMaps & technical products
HARE through modern spatial analysis
The mapping section documents watershed boundaries, DEM, hillshade, slope, drainage, flow accumulation, command area, canals, headworks, land cover, soils and other GIS products developed during the modern reconstruction.
Maps & DEMCurrent engineering direction
From watershed processes to headworks reassessment
The modern study now links rainfall, catchment characteristics, river flow, erosion and sediment behaviour with the condition of the existing Hare diversion works.
Hydrology
HEC-HMS provides the event-based design-flood framework, while SWAT provides continuous watershed response, water balance, groundwater contribution and daily streamflow information.
Sediment
SWAT identifies important sediment-source areas and strong channel deposition. Field photographs independently show substantial sediment accumulation around the Hare diversion structure.
Headworks
The next engineering stage considers sediment exclusion, scour and undersluice arrangements, flushing, intake alignment, desilting and catchment erosion-control measures.
Long-term vision
An internationally accessible engineering legacy
The HARE website is being developed as a permanent professional archive for engineers, students, universities, water institutions, governments, researchers and development partners interested in irrigation and water-resources engineering.
By bringing together the original 1995 engineering study, Team1995 professional history, GIS reconstruction, HEC-HMS, SWAT, field evidence and modern engineering interpretation, the archive documents both the history of the project and its continuing technical relevance.