Two years after Lugard's 1914 Amalgamation joined Northern and Southern Nigeria on paper, the Jebba Bridge joined them in steel. Completed in September 1916, the 549m double-span bridge across the Niger at Jebba — three through-truss spans riveted on site by the Cleveland Bridge & Engineering Company — closed the last gap in the route from Lagos to Kano. For the first time in the history of West Africa it was possible to load a sack of groundnuts at Kano and unload it at Apapa without breaking bulk. The journey took eight days. Before the bridge it had taken six weeks via head-porter, riverboat and rail transhipment.
The Eastern line was the same logic, rotated ninety degrees. Port Harcourt did not exist before 1912; it was conjured into existence by Frederick Lugard as the seaward terminus of a railway that did not yet have an inland purpose. The purpose arrived in 1914 with the discovery of high-quality bituminous coal at Enugu Ngwo. The line Port Harcourt → Enugu (243km) opened in 1916; by 1920 Enugu coal was firing every locomotive on the system, every government generating station in southern Nigeria, and most of the Gold Coast Railway. The line was extended Enugu → Makurdi (1927) and Makurdi → Kaduna (1932), creating a second main route that doubled the system's reach without doubling its origin.
Three consequences flowed from this second wave of construction. First, Port Harcourt became a city — population 5,000 (1914) → 15,000 (1921) → 71,000 (1953) — built on coal export wages and railway maintenance work, the only major Nigerian city whose origin was a railway. Second, the Nigerian Railway Workers' Union, founded in 1931 from the Enugu coal-haulage and Lagos workshops, became the spine of the Nigerian labour movement; the **1945 General Strike** was led by railway and coal-mine workers, and the **1949 Iva Valley massacre** of striking coal miners was an event whose political shockwaves ran on rails. Third, the railway became the colonial revenue spine: by 1929 it was the second-largest source of government revenue after customs duties.
By 1930 the Nigerian Government Railways operated 2,940 km of track, 25 stations of any size, and a unified Lagos–Kano–Port Harcourt network that — like the colony itself — was a single administrative object whose components had never previously belonged to each other. The railway did not just serve Amalgamation. It was its proof of concept: a single ledger, a single timetable, a single set of standing orders applied from the lagoon to the Sahel. When in 1955 the **Nigerian Railway Corporation Act** finally transferred the railway from departmental status to a parastatal, the institution being transferred was the closest thing to a unified Nigerian state that had ever physically existed.
Figure 1
Nigerian Railway: route-km in service, 1901–2024
The colonial network was finished in 1927 and not extended for ninety years. The standard-gauge era began in 2016.
Figure 2
NRC annual passengers, 1955–2024 (millions)
From 17 million riders a year in the 1960s to under a million by 2015. The Abuja-Kaduna and Lagos-Ibadan SG lines have only partly reversed it.