Slope stabilisation works

Slope stabilisation work at a dozen locations on Montjuïc Mountain has been going on since last summer, and will continue throughout 2024. The aim is to avoid rockfalls and landslides, to ensure a safe environment for pedestrians. A total budget of 7.17 million euros has been allocated for the completion of these works.

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14/02/2024 - 18:42 h - Urban planning and infrastructures Districte de Sants-Montjuïc

Once the slopes have been cleared by removing anything that might be at risk of falling, they are covered with a mesh and/or a network of cables that are fixed to the ground using soil nails – metal bars which act as anchors – to hold them in place. Again with the aim of avoiding erosion, but also in order to guarantee a safe environment for passers-by, some paths and areas are being paved. Many are protected against landslides by protective metal fencing or reinforced concrete barriers.

Completed and ongoing works

  1. C/ Font Florida, 43-91
    On this slope rows of ditches have been created to collect water, the path leading up to the Pau Vila School has been repaired and an anti-erosion mesh reinforced with steel wire ropes and soil nails has been installed above it.
  2. C/ Font Florida, 93-115
    A row of ditches is also being built on the stretch closer to the Font Florida Park just below the Pau Vila School to collect water, and =anti-erosion mesh with steel wire ropes and soil nails will be placed further down.
  3. C/ Polvorí – Avda Estadi
    On this slope, which is located below the Foixarda Municipal Rugby Field and above the Joan Serrahima Municipal Stadium, the sub-basins are being rearranged to make them more erosion resistant. The works have already begun, but may have to stop between March and July so as not to negatively impact nesting birds.
  4. Passeig Migdia – C/ Cartoixa
    Above Passeig Migdia, from the junction with C/ Can Valero, and below a water catchment line, part of the mountain has been covered with double mesh reinforced with steel wire ropes with bolts and soil nails. Part of the work has already been completed, with a second phase pending for the summer.

Planned works

  1. Sot del Migdia
    Part of the slope below the driving school practice area above the paths that lead to the Migdia viewpoint will be protected with mesh reinforced with steel wire ropes and soil nails to prevent any further landslides.
  2. C/ Pedrera del Mussol – C/ Jocs del 92
    On both sides of C/ Jocs del 92, a double gabion wall (a steel wire cage filled with stones from the river) is being built from the Pedrera del Mussol turn-off to the roundabout at C/ Fuego to protect the Can Close school and the whole neighbourhood from landslides originatig on the highest part of the mountain as requested by local people.
  3. Olympic Shooting Range
    Construction of a row of micropiles and a barrier to protect the Olympic Shooting Range facilities located on the Montjuïc road that leads down from the castle from landslides.
  4. Fossar de la Pedrera
    Extension of the existing barriers at different levels of the Fossar de la Pedrera, and the construction of a new one to prevent erosion.

Work due to begin immediately

  1. Sot de la Foixarda (Sot del Pantà) – Avda Estadi
    Halfway between the Foixarda equestrian centre and Avda Estadi, a concrete wall will be built to stabilise the slope. Above this, there will be new paving, and below a strip of land covered in geomat with soil nails. These works, and those on the two subsequent ‘sots’, will begin imminently with the clearing of the area, but they may also have to stop between March and July, so as not to negatively impact nesting birds.
  2. Sot de l’Estany (Jardí Botànic Històric)
    At the end of the steps leading up from the end of the car park at the side of the Palau Nacional, there is to be new paving on the concrete retaining wall, and on both sides the slopes will be reinforced with mesh secured using soil nails.
  3. Sot de la Masia (Jardí Botànic Històric)
    At the end steps leading up from behind the Palau Nacional, there is to be new paving on the concrete retaining wall, and on both sides the slopes will be reinforced with mesh secured using soil nails.

During the last year, similar works have also been carried out to contain landslides on the Tres Pins slope (Avda Miramar, in front of the Escola de Bosc) and at Avda Montanyans, 21 (behind the Poble Espanyol).

This Slope Stabilisation Plan, which is part of the 2019-2029 Montjuïc Park Action Plan, arose from the need to address the problem of rockfalls landslides in recent years caused by a number of episodes of unusually high rainfall, following storm Gloria in 2018. The aim is to ensure that the slopes are more stable when the current period of drought comes to an end, when rain is expected to return in the form of severe storms. The aim is to prevent these slopes from posing a risk to those who live, work, go to school or simply go walking on the mountain of Monjuïc.

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