David Marchiori
Ragoli - Tre Ville (TN), Italy
Streets with (new) meaning
Ways of living, ways of sharing
Production and commercial diversity
Image: Samuele Guetti []
UDWR2H - Underground drinking water reservoir incastred on the edge of the village to provide drinking water to part of the local community.

The new reservoir replaced a pre-existing reservoir built around the mid-twentieth century in concrete and stone, of dimensions no longer suitable to meet the needs of the aqueduct served.
Considering the commitment that the local community invested in the construction of the old reservoir, it was decided to keep part of it and incorporate it, like an inlay, into the new structure, moving the new entrance to the eastern side.
The settlement principle is based on the intersection of essential geometric shapes, each linked to its own function and on the reading of the context, from which the elaboration of a new volume is born, entirely contained in the morphology of the pre-existing land.
The cylindrical shape of the storage tanks allows the continuous movement of water, thus avoiding stagnation areas and helping to ensure their sanitary quality.
Furthermore, the cylindrical shape is economically advantageous.
The slope of the roof resumes that of the pre-existing ground and is inclined from the mountain towards the valley.
An attempt was made to use this slope to limit the height of the roof with respect to the maximum level of water contained in the tanks, positioning the inspection point of the tanks upstream: the level of the access level to the tanks is equal to the height of access to the building but the direct connection, with a horizontal walkway, between the entrance and the edge of the pools would have led to the need to raise the ceiling well beyond the natural height of the ground. Therefore it was decided to create a descent access to the underlying maneuvering room and from this to go up to the edge of the tanks upstream, where the roof slab is high enough to offer the space necessary for the construction of a small maneuvering landing.
The concrete staircase that connects the valve chamber to the inspection landing of the tanks runs along the perimeter of the right tank, with a helical shape. The concrete parapet of the staircase is also a support beam for the staircase.
Towards the side square, the access and the retaining walls define a vertical plane that corresponds to the position of the pre-existing stone wall.
Finally, the surface finish of the access tunnel and of the external works, in mineral black color applied with a spatula, recalls the typical stone of the place. The "Ragoli Black Marble" of which there is a quarry in the municipal territory, now disused.


Often the construction of public infrastructures aims at a single objective, the functional one of satisfying a need.
The very fact that the project is located in the real world makes it part of a cultural landscape, a member of a society, an element experienced or observed by a population and therefore must respect and integrate with these aspects, indeed if possible develop them, in order not to be enriching. on the one hand and depleting on the other.
The designer and the client of an infrastructure of public interest have the possibility to choose to satisfy further objectives: aesthetic, social, cultural.
Technique and architecture, functionality and empathy, service and culture, cannot be distinguished either in the design process or in the aesthetic judgment.
"Cultural" design is a natural necessity.

Design and works direction: David Marchiori []
Photo Credits : Samuele Guetti []

Design and works direction: David Marchiori []
Photo Credits : Oscar Frizzi []

Design and works direction: David Marchiori []
Photo Credits : Oscar Frizzi []

Design and works direction: David Marchiori []
Photo Credits : Oscar Frizzi []

Design and works direction: David Marchiori []
Photo Credits : David Marchiori

David Marchiori

David is an environmental engineer

Planning/engineering ofice