Every ribbon-cutting hides a capital stack. When the Nairobi Expressway opened to motorists on 14 May 2022, the visible story was a tolled highway linking the airport corridor, the central business district and Westlands. The financial story, less visible but more durable, is who put up the money, who carries the risk, and on what terms the Kenyan public eventually owns the asset. For anyone who follows the capital rather than the concrete, that is where the Expressway is decided.
The Structure: Building Off the Public Balance Sheet
The Expressway was delivered through a public-private model rather than direct Treasury spending, which means a private developer financed and built the road and expects to recover its outlay through tolls over a concession period before the asset reverts to the state. The appeal to Kenya is straightforward: a strategic corridor gets built without adding the full cost directly to sovereign debt at a time when debt-servicing pressure is real. The cost is equally clear: the concessionaire holds pricing power over a public road for the life of the concession, and the state carries obligations embedded in that contract. [TK: concession length and toll-escalation terms not published in full on opening.]
The distinction between visible and hidden liability is the whole point. A road funded by direct Treasury borrowing would show up plainly as sovereign debt in Kenya shilling and foreign-currency ledgers; a road funded by a concession shifts the headline number off the government’s books but replaces it with contingent obligations, availability or traffic guarantees, land commitments, that are harder to see and just as real. For a Kenyan analyst, the honest way to size the deal is to read those contingent terms rather than to celebrate the absence of a loan.
Takeaway: off-balance-sheet is not off the hook; the obligation moves, it does not vanish.
The Risk: Where Currency and Repayment Sit
Follow the risk and the questions sharpen. The construction finance behind projects of this kind, part of a broader wave of Chinese-backed urban infrastructure, typically arrives in foreign currency, while the tolls that repay it are collected in Kenya shillings. That mismatch places currency risk somewhere in the structure, and whoever holds it, operator, lender or ultimately the state, prices it into tolls or into the concession. Traffic risk sits alongside it: if fewer motorists pay the toll than forecast, the revenue that services the debt falls short. These are not reasons against the model; they are the variables that determine whether it is bankable at the second and third attempt.
Takeaway: the road’s real balance sheet is a bet on shilling tolls covering hard-currency debt.
The Access Question: Can Local Capital Enter the Stack
The strategic question for Kenyan finance is whether domestic institutions can move up the capital stack on the next such asset. Today the equity, senior debt and construction contracts on flagship urban roads tend to arrive as an integrated foreign package. Yet Kenyan pension funds, banks and the Nairobi Securities Exchange represent pools of long-dated shilling capital that are, in principle, well matched to long-dated toll revenue, which is itself in shillings. Building instruments that let that capital participate, whether through project bonds or infrastructure funds, is how a country turns a one-off imported deal into a repeatable domestic asset class. The tolling terms that would underpin any such instrument are set out on the Nairobi Expressway portal.
Takeaway: local currency revenue is an argument for local currency capital.
