Arno

The course of the Arno

The River Arno in Florence

The River Arno, in ancient times Arnus, is a 241 km long river in northern Tuscany in Italy.

Description

He is named after the Tiber the most important river of central Italy. It is the largest river of Tuscany and of the eight longest Italy. It flows only in northern Tuscany, while the provinces of Arezzo, Florence and Pisa. The catchment area of the River Arno is more than 8200 km ², the average discharge 100 m³ / s During the snowmelt and after heavy rains the Arno swells rapidly and is then often only at the risk navigable.

Course

The Arno rises at the Monte Falterona in the Apennines in the area of Casentino ( Arezzo ) by the confluence of the streams Capo d' Arno, Arninio and Arnaccio. First, it flows through the center of the Stia (height above sea level 441 m), where it remains 11 km and where to enter from the left of the first major tributary Staggia. After Prato Vecchio he reached Poppi, where right from Castel San Niccolò Coming of Solano flows, and Bibbiena, here on the border with Ortignano Raggiolo, from whose municipality joins from the right Teggina. In Rassina ( district or main town of Castel Focognano at an altitude of 310 m) of the same tributary flows from the left one, then flows from the right Soliggine. Between Subbiano Capolona and it serves as a border between the two communities to then enter into the municipality of Arezzo, where he spends in the northern districts of 12 km. The up here from north flowing to south river now turns to the northwest and enters the Arno Valley ( Valdarno), which starts at Laterina and Pergine Valdarno, Montevarchi (144 m, with inflow of ambergris from left), Terra Bracciolini and San Giovanni Valdarno includes (all Arezzo Province). In Terra Bracciolini the Arno happens, erected in 1958 hydroelectric plant levans Battagli, which is located in the Natural Park Riserva Naturale Valle Regional dell'Inferno e Bandella.

The Valdarno now following in the province of Florence Arno meets the first to Figline Valdarno, Regello, Incisa in Val d' Arno and Rignano sull'Arno (118 m). Between Pelago and Pontassieve the Arno turns west and receives the waters of the Sieve of right. After Thermalbadort Bagno a Ripoli, the river enters the city of Florence (50 m), where in one of the Florentine churches he also spends the longest time not in the second (15 km) and the Santa Trinita Bridge and the Ponte Vecchio is the only world War destroyed bridge in Florence under flows. The inflow of Mugnone reaches the river in the western city near the Parco delle Cascine ( quarters 5 Rifredi ), then enters the left side of the Greve one. Then the Arno reached the communities Scandicci Lastra a Signa and Signa, where flows from the right Bisenzio. The Ombrone Pistoiese also occurs from the right on the municipal boundary to Carmignano. In Capraia ( Capraia e Limite ) and Montelupo Fiorentino, the Pesa united with the river Arno, and reached the foot of Mount Montalbano the village limits. After Empoli and Cerreto Guidi ( as a border river ), the river leaves the Florentine territory.

In the province of Pisa, the flow first arrives in San Miniato, where incorporated on the border with the Elsa Empoli and then the Egola from the left. Here he touches again the province of Florence ( Fucecchio, with the inflow of Usciana ) and then proceed in the province of Pisa along the places Santa Croce sull'Arno, Castelfranco di Sotto and Santa Maria a Monte. He reaches into the communities Calcinaia and Pontedera (14 m), where Coming Era of shares from the south the river. After Vicopisano, Cascina San Giuliano Terme and the Arno arrived in Pisa (4 m ) opens at Marina di Pisa in the Tyrrhenian Sea.

Flood

The Roman historian Livy reported by floods of the river. Especially Florence was regularly affected. Devastating the damage had been taken in this city after a flood on November 4, 1966, when numerous works of art affected and to mourn the dead were. In recent decades, dams were built upstream of Florence; so that the risk of flooding could be significantly reduced.

Pictures

The Arno bridges in Florence

The Ponte di Mezzo, Pisa

The Arno in Candeli