• Kenya
Geographic location where the impacts of the investment may be experienced.
Financial Institutions
  • African Development Bank (AFDB)
International, regional and national development finance institutions. Many of these banks have a public interest mission, such as poverty reduction.
Project Status
Stage of the project cycle. Stages vary by development bank and can include: pending, approval, implementation, and closed or completed.
Bank Risk Rating
Environmental and social categorization assessed by the development bank as a measure of the planned project’s environmental and social impacts. A higher risk rating may require more due diligence to limit or avoid harm to people and the environment. For example, "A" or "B" are risk categories where "A" represents the highest amount of risk. Results will include projects that specifically recorded a rating, all other projects are marked ‘U’ for "Undisclosed."
Voting Date
Jul 14, 2022
Date when project documentation and funding is reviewed by the Board for consideration and approval. Some development banks will state a "board date" or "decision date." When funding approval is obtained, the legal documents are accepted and signed, the implementation phase begins.
Republic of Kenya
A public entity (government or state-owned) provided with funds or financial support to manage and/or implement a project.
  • Transport
The service or industry focus of the investment. A project can have several sectors.
Project Cost (USD)
$ 85.20 million
Value listed on project documents at time of disclosure. If necessary, this amount is converted to USD ($) on the date of disclosure. Please review updated project documents for more information.
Currency conversion note:
Bank reported U.A 113,327,289.21
Converted using 2023-02-15 exchange rate.
Primary Source

Original disclosure @ AFDB website

Updated in EWS Feb 15, 2023

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Project Description
If provided by the financial institution, the Early Warning System Team writes a short summary describing the purported development objective of the project and project components. Review the complete project documentation for a detailed description.


The proposed Nairobi-Nakuru-Mau Summit highway project is part of Government of Kenya's (GoK) First Mover Public-Private Partnership (PPP) program. The project is procured as a 30-year PPP concession for improvement and upgrade of two main highways in Kenya - A8 and A8 South, mainly located in the Kiambu and Nakuru counties. The project comprises: i) widening of the 175km four-lane dual carriageway and Operation & Maintenance of the existing A8 road from Rironi to Mau Summit and ii) strengthening and O&M of the existing 57.8 km 2 lane A8 South from Rironi to Naivasha. The Bank has taken the E&S Coordinator role (with IFC) for this project. It is considering to provide a senior loan of up to USD150 million (UA107million) ADB NSO loan with a 20-year tenor and 3.5 years (42 months) grace period during construction.


An economic analysis of the project conducted by Kenya National Highways Authority (KeNHA) and rerun from the model, assesses the quantifiable benefits such as reduction of vehicle operating costs and travel time savings against the development costs and operating expenditures. The direct development outcomes expected from the Project mainly consist of increased productivity, commercial efficiencies, time and cost savings (of almost 100%); thus, alleviating the current perpetual traffic jams (travel times of almost 4 hours) on this stretch of the highway which will ultimately support economic growth and increase the quality of life of the people.


The road will benefit to people of the capital city, Nairobi, to two of the main economic hubs in the country, Naivasha and Nakuru, and forms a vital part of the country's road network providing access for circa 6 million people (approximately 10% of the total population of Kenya). Average number of vehicles per day amounts to ca 16,000 vehicles (ca 5.8 million per year) with up to 40,000 vehicles in the busiest sections projected to increase significantly over the coming years.

Investment Description
Here you can find a list of individual development financial institutions that finance the project.

Contact Information
This section aims to support the local communities and local CSO to get to know which stakeholders are involved in a project with their roles and responsibilities. If available, there may be a complaint office for the respective bank which operates independently to receive and determine violations in policy and practice. Independent Accountability Mechanisms receive and respond to complaints. Most Independent Accountability Mechanisms offer two functions for addressing complaints: dispute resolution and compliance review.


You can submit an information request for project information at: Under the AfDBÕs Disclosure and Access to Information policy, if you feel the Bank has omitted to publish information or your request for information is unreasonably denied, you can file an appeal at


The Independent Review Mechanism (IRM), which is administered by the Compliance Review and Mediation Unit (CRMU), is the independent complaint mechanism and fact-finding body for people who have been or are likely to be adversely affected by an African Development Bank (AfDB)-financed project. If you submit a complaint to the IRM, it may assist you by either seeking to address your problems by facilitating a dispute resolution dialogue between you and those implementing the project and/or investigating whether the AfDB complied with its policies to prevent environmental and social harms. You can submit a complaint electronically by emailing,,, and/or You can learn more about the IRM and how to file a complaint at:

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How it works