“Construction of a 191 km railway from Iran to Herat in Afghanistan, with the prospect of an extension across Afghan territory to Sher Khan Bandar, promises to stimulate trade with Central Asia.” reports Murray Hughes in the January 2008 issue of Railway Gazette International.

The current scheme was launched when a Memorandum of Understanding was signed in June 2002 between the Iranian Transport Ministry and the Ministry of Public Utility in Kabul. The project was costed at US$28m and construction was split into four lots, two in Iran, and two in Afghanistan; work officially began in Iran on July 29 2006.
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It is from the penultimate loop at Khaf that the single-track line to Herat begins.

From Khaf the route heads slightly south and then east across the border through arid and rugged terrain. Total length of the new line is 191 km, of which 77 km is located in Iran and 114 km in Afghanistan. Of the 10 intermediate stations envisaged, Ghurian will be the largest intermediate town served by the section on Afghan territory.

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Preliminary investigations have been made for an extension from Herat that would run for no less than 700 km across northwestern Afghanistan to Meymaneh, Sheberghan and Sher Khan Bandar on the border with Tadzhikistan. This route would also offer the opportunity to connect with the 1 524 mm gauge line that crosses the Uzbekistan frontier near Termez, penetrating as far as Hariatan. This line is now handling trains nearly every day, mainly carrying petroleum products, machinery, building materials and agricultural produce.

You can read the full article on the Railway Gazette International website.