A wall is planned after 19 September slide near Irazú Volcano

A 1 October traffic regulation affected Route 219, one access road to Irazú Volcano from Cartago, while monitoring continues after heavy rain.

A retaining wall is planned after a landslide near Irazú Volcano on 19 September 2026, with Route 219 traffic regulated again on 1 October in Cartago. The road is an access route towards the national park, so the changes matter to visitors approaching from the city.

The affected area is La Chinchilla in Oreamuno, north of Cartago. The road remained usable after the regulation, but authorities asked drivers to reduce speed and follow signs while the Consejo Nacional de Vialidad, known as Conavi, worked at the site.

Route 219 restrictions followed the October landslide

Heavy rain caused a landslide on Route 219 on 19 September 2026. The incident temporarily isolated people in the area, and the road authority planned machinery work to clear the route. A later report recorded traffic regulation at La Chinchilla on 1 October 2026, while the municipality cited mud, blocked drainage channels, vegetation, potholes and trees at risk of falling.

By 2 October 2026, traffic was reported to be moving normally after a geotechnical inspection found the slope stable. Conavi was preparing designs for a retaining wall, giving the temporary restriction a continuing consequence for the road used by residents and visitors. The retaining wall plan for Route 219 was reported after the inspection.

Irazú Volcano has two visitor sectors above Cartago

The national park lies in Costa Rica's Cartago Province and includes the Crateres and Prusia sectors. The protected area reaches 3,432 metres (11,260 ft) above sea level, making the volcano the country's highest, and its crater landscape includes five craters.

The route issue is especially relevant because the official park map directs visitors from San Jose towards Route 2016 for the Crateres sector and Route 219 for Prusia. That link between the landslide and the park's divided access is the practical difference for travellers: a problem on Route 219 may affect the approach to Prusia without proving that the Crateres sector itself is closed. The official park access map lists both routes.

Active western slope adds a separate safety concern

A second landslide report concerns the volcano's western sector, where radio and telecommunications towers are located. A block fell there on 19 September 2026 across an area of 900 square metres, and the report said the moving landslide crown still had growing cracks.

The report also said the sector had experienced major collapses in 2014 and 2020. Ovsicori monitors seismic activity and ground deformation with GNSS, although the precise points of the slope were not under permanent monitoring. The account of the active western landslide did not announce a closure of the visitor sectors.

Visiting Irazú Volcano: what travellers from Western Europe should know

• The relevant road incidents occurred on 19 September and 1 October 2026 at or near Route 219 in Oreamuno, on the approach from Cartago.
• Route 219 was subject to regulated traffic on 1 October 2026, while a 2 October 2026 report said vehicles were moving normally after a slope inspection. The park itself was not reported closed in these accounts.
• The Crateres sector is approached from Cartago via Route 2016, while the official park map gives Route 219 for the Prusia sector. Conditions can therefore differ between the two visitor areas.
• The terrain is high-altitude volcanic ground reaching 3,432 metres, with five craters and a separate forested sector at Prusia. Travellers should allow for steep mountain roads and changing ground conditions.
• Costa Rica's official language is Spanish and its national currency is the Costa Rican colón.
• Entry requirements depend on your nationality; UK travellers can check the FCDO travel advice at gov.uk/foreign-travel-advice, Irish travellers the Department of Foreign Affairs at ireland.ie.

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Frequently asked questions about Irazú Volcano

What happened on Route 219 near Irazú Volcano?

A landslide affected the road on 19 September 2026, and traffic was regulated again on 1 October 2026 at La Chinchilla in Oreamuno.

What has changed after the Irazú Volcano landslide?

Traffic was reported to be moving normally on 2 October 2026, but Conavi was preparing a retaining wall for the affected section of Route 219.

Where is Irazú Volcano and how do you get there?

The park is in Costa Rica's Cartago Province. The official map directs visitors towards Route 2016 for the Crateres sector and Route 219 for the Prusia sector.