On 25 December 1884, the first tramway pulled by mules was inaugurated and covered the route from Plaza de Bolívar to Chapinero, and in 1892, the line connecting Plaza de Bolívar and La Sabana Station started operating. The tramway ran over wooden rails and was easily derailed, so steel rails imported from Britain were eventually installed. In 1894, a tramway car ran the Bogotá–Chapinero line every 20 minutes.  The tram system eventually grew to cover most of the city and its surrounding suburbs. But during the Bogotazo riots of 1948, the system suffered heavy damage and was forced to close. The economic effects of the subsequent civil war that followed prevented the damage from being repaired. Parts of the system continued to operate in a reduced state until 1951, when they were replaced by buses. Most of the streetcar tracks were eventually paved over, but exposed tracks can still be seen on many of the older roads of the city, especially downtown and in the La Candelaria area, although it has been about 70 years since any vehicles have run on them.