Before the collapse, this retaining and retaining wall of a private property in the municipality of Orselina, built entirely of stone blocks bound with cement, boasted impressive dimensions:

The collapsed portion was found to have 12.00 m. Of length, over 4.50 m. height and with a base of 1.20 m.

The wall had been built to contain a large terrace on had been built a villa from the im-

bearing cubage and which also included an outdoor swimming pool.

The terrain in question had a steep slope: due to continuous subsurface seepage, which was not visible but nonetheless present, the retaining wall, as mentioned, had a subsidence in the foundation that dragged part of the structure downstream, causing extensive damage to the building below as well.

Our project, in collaboration with a geology and civil engineering firm, remedied the

situation created, realizing a safe and modern work, especially of the safety point of view.

To overcome the problem of subsurface seepage, a network of collection channels was created

and water disposal, so as to ensure that never again can there be such problems.

The remaining portions of the old stone wall that did not collapse were then partly demolished and rebuilt

and, where possible, maintained but made absolutely safe.

The photo summary reconstructs the highlights of the wall reconstruction and rehabilitation project.