Pozzo etrusco

History

The Etruscan well is near "Colle del Sole", 477 m above sea level, the highest point in the city of Perugia, where the ancient acropolis of the Etruscan town used to be.

Its construction can be presumably dated to the second half of the 3rd century B.C.; its purpose was probably to ensure an adequate water supply for the population. Over the centuries the structure has been rebuilt several times, beginning in the 15th century, which suggests an uninterrupted use of its water reserve by the local community. Such continuity is actually confirmed by the well curb, in the middle of what is now Piazza Piccinino (formerly Piazza dei Gigli), which indicates the monument at road level.

The well curb, originally used by the population to draw water from the underground tank (presumably dating to the 14–15th cent.), opens between the entrance to Palazzo Sorbello and to the Chiesa della Compagnia della Morte; in the past it has been repeatedly damaged, until recent times. It has been renovated by the Municipality on several occasions, then – following very serious damage which caused part of the railing to collapse to the bottom of the well, to be then recovered in the mid-1960s – a better position for it was found on the lawn in front of the Tempio di Sant’Angelo, where it remained until 1973, the year in which it was relocated. …

Description

The well consists of a cylindrical barrel structure, about 37 m deep, which has been dug into ground mainly consisting of clay and rounded pebbles (which is known in Italian as "tassello mandorlato"). The first 4 m below road level are occupied by a quadrangular room which then extends to a depth of 16 m, resulting in a large tank with a diameter of approximately 5.60 m. The upper section of this structure has a cladding made of large travertine slabs, above which there is a series of stone beams, stuck one into the other without using mortar or lime, forming two "trusses", each of which weighs approximately 8 metric tons, whose purpose is to support the ceiling above, which is also made of large travertine slabs.

Starting from 16 metres below road level, the barrel structure of the well begins to narrow down, reaching a diameter of 3 m.

Initially, to extract water, a system of buckets connected to a rope was used, which is confirmed by the presence of clear-cut grooves on the surface of the travertine block on the ceiling. A system with a central pulley began to be used only later, when an actual iron grid served to seal off the well curb, with the engraved date of 1768, plus the addition of two coats of arms, also made of iron, one of the marquis Bourbon di Sorbello, the other one of the family which previously owned the property, the counts Eugeni.

From a typology perspective, the well can be compared – although it is not exactly alike – to a category of works widespread everywhere, with the same purpose, even if they do not always have the same structure. The homogeneous construction materials and techniques used for the well and for the Etruscan walls around Perugia has led to conclude that, originally, it was intended as a public utility. A similarity with the vaulted ceiling of the Etruscan Well is confirmed by another water tank dating to the Etruscan age, which has also been found in Perugia, at Via Caporali.

During the speleology surveys completed over the years, it has been ascertained that the overall size, including each of its sections, is 424 m3 and that it could contain (at full capacity) up to 424,000 litres of water. The well is still working, fed by three perennial springs. In 1996 the structure was emptied in order to complete some photographic surveys.

Archaeological and tourist site

In July 2016 the Sorbello Foundation, a cultural institution with headquarters at Palazzo Sorbello which inherited the assets of the Ranieri Bourbon di Sorbello family, completed work on the restoration and new layout of the entrance rooms; it currently manages the archaeological site as a museum