Mouth of the Marecchia in Rivabella
|Comuni||Badia Tedalda, Casteldelci, Verucchio, Rimini|
|- right||Massa, San Marino, Ausa|
|Source||Alpe della Luna|
|- location||Badia Tedalda, Arezzo, Italy|
|- elevation||1,454 m (4,770 ft)|
|- location||Rimini, Rimini, Italy|
|Length||70 km (43 mi)|
|Basin||500 km² (193 sq mi)|
|- average||11 m³/s (388 cu ft/s)|
|Wikimedia Commons: Marecchia river|
Its low course marks the end of the Padan Plain (Italian: Pianura Padana).
Its discharge (volume of water which passes through a section of the river per unit of time) depends of the season: in the autumn could be as high as 1,200 m3/s (42,000 cu ft/s) but is very low during summer. Most of the time, the discharge is about 11 m3/s (390 cu ft/s).
The Marecchia river flows through a valley named after it, Valmarecchia. The river starts at about 1 km (0.6 mi) west of Viamaggio (comune of Pieve Santo Stefano) and about 4 km (2.5 mi) southwest of the comune of Badia Tedalda, in the province of Arezzo (Tuscany), in the Alpe della Luna at an elevation of 1,454 m (4,770.3 ft) above sea level.
At about 3 km (1.9 mi) to the northeast of Badia Tedalda, the river gets into the Emilia-Romagna region, in the Casteldelci comune, province of Rimini. Then it flows through Ca 'Raffaello, an exclave of Badia Tedalda; to the north of here, the Senatello river flows into the Marecchia as a left tributary. Later, in Ponte Masa, the Masa river flows from the right into the Marecchia.
Shortly after Torello, the San Marino river flows as a right tributary and, after the Verucchio comune, the Ausa flows also from the right.
Between the frazioni (Italian subdivisions of a municipality) of Rivabella and San Giuliano, in Rimini, the Marecchia river ends in the Adriatic Sea.
The Bridge of Tiberius (Italian: Ponte di Tiberio) or Bridge of Augustus (Latin: Pons Augustus) is a Roman bridge in Rimini. Its construction began in times of Augustus but was finished in 20 AD in times of Tiberius.
The tributaries of the Marecchia river are:
- "Marecchia" (in Italian). Treccani.it - Enciclopedie on line. Retrieved 29 October 2016.