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The M-604 closure disrupts getaway plans and complicates mobility in the Sierra
The total closure of the M-604 between Rascafría and Cotos because of a sinkhole requires alternative routes. Repairs are already under way, but the road will remain closed until further notice. The measure affects those seeking nature and a break close to Madrid.
Those planning to go up to the Sierra this weekend have encountered an unexpected obstacle: the M-604 road, one of the most common access routes to Puerto de los Cotos, has been closed for a week. The closure, which runs from kilometre 27 to 41, directly affects travel between Rascafría and Navacerrada, two key points for those seeking nature less than two hours from Madrid.
The reason is a sinkhole that appeared at kilometre 35, right in the middle of the carriageway. Heavy rain in recent days has caused the road surface to give way, forcing the Community of Madrid to intervene urgently. After a technical inspection, it was decided to close the road in both directions and begin repairs immediately, prioritising the safety of those travelling in the area.
The closure is total and has no reopening date. The Transport authorities insist that work is already under way on the ground and that they hope to resolve the incident as soon as possible, although for the moment the recommendation is clear: plan the journey in advance and follow the signposted diversions. The situation affects both residents and people who use weekends to switch off in the mountains.
The M-604 is much more than a secondary road. For many people from Madrid, it is the gateway to hiking routes, recreational areas and charming small towns. Its closure not only complicates mobility, but also disrupts the usual rhythm of escapes and outdoor activities. Madrid is already beginning to adjust its leisure calendar in response to this unforeseen event.
The Sierra de Guadarrama, especially in the rainy season, tests the resilience of its infrastructure. The M-604, winding through forests and valleys, is one of the routes most used by hikers and families looking for fresh air without going too far from the city. Its maintenance is key to guaranteeing access to one of the region’s green lungs and ensuring that the connection between towns is not interrupted every time the weather turns severe.