Buenos Aires Midland Railway
| Company type | Private |
|---|---|
| Industry | Railway transport |
| Founded | 1907 |
| Founder | Enrique Lavalle, Eduardo Casey |
| Defunct | 1948 |
| Fate | Nationalised and absorbed into the Belgrano Sur Line |
| Successor | Belgrano Sur Line (Ferrocarriles Argentinos) |
| Headquarters | Buenos Aires Province , Argentina |
Area served | Buenos Aires Province, Argentina |
Key people | Enrique Lavalle, Eduardo Casey |
| Products | Railway transport services |
| Owner | British ownership (until 1948) |
The Buenos Aires Midland Railway (BAM), known in Spanish as Ferrocarril Midland de Buenos Aires, was a railway enterprise under British ownership operating within Argentina. It developed and managed a metre-gauge track stretching from Puente Alsina to Carhué in the Buenos Aires Province.
After the 1948 nationalisation, BAM was absorbed into the Belgrano Sur Line, ending its existence as an autonomous company. Presently, the state-run operator Trenes Argentinos provides services along the Puente Alsina-Marinos del Crucero General Belgrano branch.
Origins
In 1904, businessman Enrique Lavalle secured a concession from Buenos Aires Province to construct a metre-gauge railway connecting Puente Alsina with Carhué. The venture was titled "Buenos Aires Midland Railway," while the Lacroze Brothers registered it under "Ferrocarril Central de Buenos Aires." Eduardo Casey, recognized for founding Venado Tuerto, spearheaded the initiative.
Construction and Expansion
Building commenced in 1907 under the direction of the Argentine firm Hume Hnos. By November of that year, the railway reached Puente de la Noria (currently Ingeniero Budge station), initially operated using a Koppel steam locomotive alongside a distinctive passenger coach.
Soon after, BAM encountered competition from the French-owned Compañía General de Ferrocarriles en la Provincia de Buenos Aires (CGBA), with both companies constructing railways across intersecting territories, putting their financial stability at risk. Although National Law 2.793 favored BAM’s earlier concession, CGBA leveraged its provincial authorization to assert rights over the same routes.
Despite tensions, both firms continued expanding their networks, escalating disputes until BAM requested CGBA to pause construction. CGBA responded with threats of Supreme Court litigation. Ultimately, they reached an agreement involving shared use of Plomer station among other terms. BAM relinquished several embankments and sought monetary recompense for its prior investments.
By mid-1908, BAM halted construction due to insufficient European funding. Subsequently, other rail companies such as Buenos Aires Great Southern and Western Railways assumed control of BAM and pledged to finalize the line. The original contractor Hume Hnos was replaced by Clarke, Bradbury and Co., affiliated with Great Southern’s management team. The segment from Puente Alsina to San Sebastián opened on 15 June 1909, with full completion to Carhué achieved by 1 July 1911.
Because BAM terminated at Puente Alsina without direct access into Buenos Aires city proper, its commercial development was constrained. Legal restrictions prevented extending the line into the capital since BAM held a provincial concession while Buenos Aires city fell under national jurisdiction. In 1912, an arrangement with Western Railway allowed passengers to transfer at Intercambio Midland station onto Western Railway services reaching Sola station in Parque Patricios district; however, this connection was brief and Puente Alsina soon resumed as the terminus.
Steam Locomotive Fleet
The initial locomotive was a 21-ton class A unit produced by Vulcan Iron Works. Another early engine was an Orenstein & Koppel locomotive that performed the inaugural journey from Puente Alsina to Puente La Noria; this locomotive is currently displayed at Once railway station in Buenos Aires, though some accounts suggest it was sold in 1913 and is exhibited in a Brazilian museum. Additionally, a Kerr, Stuart & Company locomotive built in 1901 for the Argentine government operated on BAM until being sold within Buenos Aires Province in 1935. A second Kerr, Stuart engine continued short-distance service into the 1930s.
Following completion of the entire line, BAM acquired six Kerr, Stuart class Es locomotives which remained active until nationalization in 1948 before being sold off. The company also procured twenty class Fs from Kerr, Stuart that remained operational under Ferrocarriles Argentinos until the 1970s.
BAM employed Hunslet class G locomotives until they were replaced by railcars in 1939; these engines were then reassigned to other lines. Beyer Peacock H class locomotives proved oversized for BAM’s infrastructure and were leased out to Ferrocarril Santa Fe and other operators. Additionally, Sentinel-Cammell locomotives—manufactured jointly by Sentinel Waggon Works and Metro-Cammell—served suburban services on main routes.
Modernisation: railcars
By 1936, the Argentine railway system was increasingly challenged by the rise of road transport. In response, certain British-owned operators such as the Great Southern Railway invested in railcars manufactured by Drewry Car Co. Meanwhile, BAM, which was experiencing low passenger numbers and financial losses, aimed to rival the Southern, Western, and GCBA railways by acquiring 10 railcars from the Birmingham Railway Carriage & Wagon Company, equipped with Gardner engines. These railcars commenced operation on 1 January 1939, replacing steam locomotives across all passenger lines and reducing travel time to Carhué from 14 hours down to 8 hours, outperforming the Great Southern Railway.
Nationalisation
In 1948, during President Juan Perón’s administration, Argentina’s railway system was nationalised. BAM was incorporated into the Belgrano Railway, which became one of six divisions within the state-owned enterprise Ferrocarriles Argentinos.
See also
References