Petrichor is a materials engineering and construction practice built on the discipline that turns a mega-project's raw ground truth into lasting infrastructure.
The particular scent produced when rain falls on dry earth — released as water meets the mineral oils and clay held quietly in the ground, and the microbial compound geosmin rises to meet it. It is what happens when two different things — sky and soil, water and stone — finally reach each other.
Every material we specify, test, and place carries the same principle. A mix design is a hypothesis until it meets the ground. A specification is a promise until it survives a site visit in the rain. Our name is a daily reminder that good engineering isn't proven in the lab — it's proven at the interface, where design meets reality.
Petrichor exists to run that interface with rigor: the quality control, the material characterization, the on-site judgment that mega-projects depend on but rarely get enough of.
A practice built around materials — the discipline most mega-projects underinvest in, and the one that determines whether they last.
Quality control and quality assurance for construction materials on infrastructure, road, and building projects — submittal review, site supervision, and conformity verification from mobilization to handover.
In-situ and laboratory testing of concrete, aggregates, soils, and binder materials — mix design, durability assessment, and material characterization for demanding ground and climate conditions.
Independent technical advisory for contractors, consultants, and developers — from pavement design review to construction supervision on multi-year, multi-stakeholder mega-projects.
Fifteen years of materials engineering across the country's roads, railways, and public infrastructure — including the projects our founder continues to lead today.
Material Engineer on a mega-scale urban square and street refurbishment project, in partnership with Ethiopian Engineering Corporation — now in its fourth year.
Managed QA/QC of construction materials and supervised installation across a major public-realm refurbishment programme.
Technical assessment of the cross-border railway line's materials and infrastructure, with in-situ and laboratory testing and progress reporting.
Pavement design review, local material characterization, and concrete mix design for an 81-kilometre rigid pavement corridor.
Led the office engineering team across a portfolio of road, bridge, and building projects as senior office engineer.
Petrichor is built around practitioners who have spent their careers at the point where academic rigor meets mega-project reality.
Miheret founded Petrichor after close to fifteen years working across some of the country's most demanding infrastructure — from an 81-kilometre rigid pavement corridor to the ongoing Chaka square and street refurbishment mega-project, currently in partnership with Ethiopian Engineering Corporation.
She holds an MSc in Civil and Environmental Engineering from Addis Ababa University and a certificate in the characterization of blended cement from École Polytechnique Fédérale de Lausanne (EPFL). Alongside her site and consulting work, she remains active in research on low-carbon binder materials, industrial waste valorization, and sustainable construction — work presented at forums including the ETH Latsis Symposium, Sustainable Construction in Africa, and Big 5 Construct Ethiopia.
Practitioners with decades of design and site experience on national roads, bridges, and structures, brought in project by project.
Faculty from Ethiopia's leading engineering schools, keeping Petrichor's material science current with the latest published research.
Long-standing working relationships with major domestic and international contractors, built over a career of mega-project delivery.
Alongside our construction practice, we're developing a materials production line — turning agricultural and industrial waste into low-carbon, non-structural building materials.
Incinerated agricultural residues, such as sugarcane bagasse ash, refined as a partial substitute for cement in concrete.
Non-structural bricks and building elements produced from industrial sludge and other under-used waste streams.
Ongoing characterization of geopolymer precursors and alternative binders, grounded in life-cycle and durability testing.
Whether it's a mega-project quality plan or a materials question no one else can answer — get in touch.