Lemme

Lemme
Lemme
	The stream near Voltaggio
	Location within the SE Piedmont
Location
Country	Italy (Piedmont, Province of Alessandria)
Physical characteristics
Source
• location
• elevation	750 m (2,460 ft)
Mouth
• location	The Orba at Predosa
• coordinates	44°45′53″N 8°40′22″E / 44.7648°N 8.6729°ECoordinates: 44°45′53″N 8°40′22″E / 44.7648°N 8.6729°E
Length	34.3 km (21.3 mi)
Basin size	180.5 km2 (69.7 sq mi)
Discharge
• average	(mouth) 3.1 m3/s (110 cu ft/s)
Basin features
Progression	Orba→ Bormida→ Tanaro→ Po→ Adriatic Sea

The Lemme is a 35 km torrent, a right tributary of the Orba, which flows through the Province of Alessandria in northern Italy.

Geography[]

Its source is near ; from there it passes through the communes of Fraconalto, Voltaggio, Carrosio, Gavi, San Cristoforo, Francavilla Bisio, Basaluzzo and finally Predosa where it enters the Orba.

Main tributaries[]

left hand tributaries[]

rio delle Acque Striate;
rio Morsone: it starts near Monte Tobbio and meets the Lemme in Voltaggio;
rio Ardana: its upper valley includes Bosio, from which flows northwards meeting the Lemme in Gavi;
rio Riolo: from San Cristoforo it runs not faraway from the Lemme meeting it near its confluence with the Orba.^[3]

right hand tributaries[]

rio Carbonasca: from Fraconalto goes till Voltaggio where it meets the Lemme;
torrente Neirone:
torrente Riasco: it collects the waters flowing in the area of Pasturana and Tassarolo and meets the Lemme near Francavilla Bisio.^[3]

Floods[]

The Lemme is characterised by an extremely variable discharge; very little water flows during the summer months, but it can also give rise to significant floods, such as those of 1978.

History[]

The Département du Lemo or Dipartimento del Lemo of Ligurian Republic took its name at the end of the 18th century from the stream.^[4]

References[]

^ AA.VV. (2004). "Elaborato I.c/5". Piano di Tutela delle Acque - Revisione del 1º luglio 2004; Caratterizzazione bacini Idrografici (PDF). Regione Piemonte. Archived from the original (PDF) on 2012-02-25. Retrieved 2017-05-14.
^ ^a ^b AA.VV. (2004). "Elaborato I.c/7". Piano di Tutela delle Acque - Revisione del 1º luglio 2004; Caratterizzazione bacini Idrografici (PDF). Regione Piemonte. Archived from the original (PDF) on 2016-03-03. Retrieved 2017-05-14.
^ ^a ^b Carta Tecnica Regionale raster 1:10.000 (vers.3.0); publisher:Regione Piemonte - 2007
^ Gazzetta universale (in Italian). 1797. Retrieved November 4, 2015.

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[PTA_al5-1] AA.VV. (2004). "Elaborato I.c/5". Piano di Tutela delle Acque - Revisione del 1º luglio 2004; Caratterizzazione bacini Idrografici (PDF). Regione Piemonte. Archived from the original (PDF) on 2012-02-25. Retrieved 2017-05-14.

[PTA_al7-2] AA.VV. (2004). "Elaborato I.c/7". Piano di Tutela delle Acque - Revisione del 1º luglio 2004; Caratterizzazione bacini Idrografici (PDF). Regione Piemonte. Archived from the original (PDF) on 2016-03-03. Retrieved 2017-05-14.

[CTR-3] Carta Tecnica Regionale raster 1:10.000 (vers.3.0); publisher:Regione Piemonte - 2007

[4] Gazzetta universale (in Italian). 1797. Retrieved November 4, 2015.

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