the history of the

the history of the
watercourse
The Guà River is a watercourse in Veneto. Guà derives from guado (ford), as in the past, at the Molinetto locality in Montecchio Maggiore, near the current bridge over the Guà, the river could be forded; another hypothesis for the name derives from le Gue, meaning river branches that occurred during floods.
It originates from the confluence of the Agno and Restena streams near Tezze di Arzignano. It flows through the countryside west of the Berici Hills, passing through Montecchio Maggiore, Montorso Vicentino, Zermeghedo, Montebello Vicentino, Sarego, and Lonigo, among others. After Bagnolo di Lonigo, it enters the province of Verona and borders Zimella, Cologna Veneta, Pressana, and Roveredo di Guà. It then passes through the province of Padua and, at Borgo Frassine di Montagnana, its waters are channeled into the Frassine River, which is of artificial origin. It receives the waters of the Poscola stream in the territory of Montecchio Maggiore.


The expansion
basins
Expansion basin at le rote del Guà
At the border between Trissino and Tezze di Arzignano, there is an expansion basin featuring transverse weirs to reduce gravel transport downstream. This area is called le rote del Guà. A project is planned to transform this basin into an expansion basin capable of holding up to 3.9 million cubic meters.
Expansion basin of Montebello Vicentino
In Montebello Vicentino, between the Guà River and the Chiampo stream, there is an expansion basin. The construction project by engineer Ugo Colonna was presented on August 11, 1926, to prevent damage to downstream territories and was first used on March 26, 1928. In 1981, the southern embankment of the basin, over which State Road 11 runs, was reinforced with a very deep and thick reinforced concrete wall to strengthen the barrier and was cleaned, restoring the original storage capacity. For the benefit of eastern Verona, following the 2010 Veneto flood that also affected the Alpone stream (the Chiampo flows into the Alpone), the expansion of the basin is under discussion. The Rio Acquetta flows within the basin, and the outflow waters from the basin itself converge into it.
the course
of the river
The course of the river has not remained stable and regular over time but has wandered in a West-East direction relative to the axis of the original riverbed. The altimetry of the plain varies from a maximum of 18/20 meters above sea level to the north and northwest, to a minimum of 8 meters to the east and southeast.
The sedimentary riverbed soils are characterized by a certain diversity of geological composition, predominantly clayey-silty.
The Fratta, after crossing the provinces of Vicenza, Verona, and Padua, takes the name Gorzone, where it crosses the province of Rovigo and (again) Padua, before flowing into the Brenta River a few kilometers from the Adriatic Sea at Brondolo di Chioggia.