six spirals but only five in operation at any one time. The line also has six reverses or zig-zags. There used to be a spiral at Dhulghat at between Khandwa and Hingoli on the metre gauge railway, the spiral was apparently removed when the track was upgraded to broad gauge. Iran Spirals near Dowgal station at and extensive horseshoe curves in the Alborz Mountains on the Trans-Iranian Railway. Ireland The St. James's Gate Brewery, Dublin, Ireland formerly had an internal gauge railway with a loop in a tunnel to gain height between buildings. Italy Spiral at Bortigiadas on the Sassari-Palau railway on Sardinia. Spiral near Lanusei on the Mandas–Gairo–Arbatax railway on Sardinia. Varzo Spiral Tunnel near Iselle di Trasquera on the Swiss Federal Railways just south of the Southern Portal of the Simplon Tunnel. Spiral near Vernante on the Col de Tende railway from Ventimiglia to Cuneo. There are a further three spirals on this line in French territory. Spiral close to Savona at on the Savona–Altare line. Spiral just north of Salerno at on the Salerno–Mercato San Severino railway. Spiral at Ragusa at on the approach to Ragusa from Modica on Sicily. Spiral between Medaglie d'Oro and Salvator Rosa at on Line 1 of Naples Metro. Vanvitelli and Quattro Giornale stations are on the loop itself. Spiral at Casole Bruzio on the Cosenza to San Giovanni in Fiore line (line exists but is not in service). There were three spirals at Caprareccia and and near San Martino on the former Spoleto–Norcia line. Japan Spiral South of Echigo-Nakazato at on the Tokyo bound Jōetsu Line. Spiral at Shimizu Tunnel at on the Tokyo-bound Jōetsu Line. Spiral South of Tsuruga Station at on the Hokuriku Main Line to Shin-Hikida Station. Spiral at Okoba Station at on the Hisatsu Line. Okoba Station is situated on a zig zag part way around the loop. Spiral on the Nakamura Line just after its junction with the Yodo Line at . Spiral on the western approach to the Rainbow Bridge at on New Transit Yurikamome automated transit service in Tokyo. Kenya There are three spirals on the gauge railway line from Kenya to Uganda. This railway has been superseded by the Mombasa–Nairobi Standard Gauge Railway, which has removed the need for spirals by constructing tunnels and bridges. Spiral South of Mazeras at near Mombasa. Spiral near Makutano station at : . Spiral near Equator station