What is the longest man made canal in the world? how long is the
longest one in france - man made only?

Hi lomi,

The longest man-made canal in the world is the Beijing-Hangzhou Grand Canal.

"The earliest and longest man-made canal in the world is the
Beijing-Hangzhou Grand Canal. The canal was first built in the 5th
century BC and was substantially extended twice during the Sui and
Yuan dynasties. The canal begins at Tongxian County in Beijing in the
north and ends in Hangzhou in Zhejiang Province in the south and has a
length of 1,794 kilometers and a drainage area of 4,583 square meters,
with 24 locks and some 60 bridges."

Consulate General of the People's Republic of China in Houston: China's World Best 
http://houston.china-consulate.org/eng/CT/t54771.htm

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The Canal du Midi in France, is 240km long.

"The Canal du Midi is a 240km long canal in southern France, linking
the Garonne River to the Mediterranean Sea, between Toulouse and the
Mediterranean port of Sète, which was created for the canal.

The canal was opened officially as the Canal Royal de Languedoc on May
24, 1681. It was built under the supervision of Pierre Paul Riquet, a
rich tax-farmer who ruined himself in the personal undertaking and
died broke in 1680, some months before the canal was opened to
navigation. 12,000 workers toiled for fifteen years to create the
canal. At Béziers it bridges the river Orb as the pont-canal. The
tunnel 173 meters long under a hill at Enserune was the first canal
passage ever built through a tunnel.

 The Canal du Midi forms, with the Canal Latéral à la Garonne, a
waterway (the Canal des Deux Mers) between the Atlantic Ocean and the
Mediterranean Sea."

LaborLawTalk ncyclopedia
http://encyclopedia.laborlawtalk.com/Canal_du_Midi


"Stretching from the Mediterranean Sea to the Atlantic Ocean, the
man-made waterways of the Canal du Midi and the Canal Latéral à la
Garonne form France's longest navigable artificial waterway. Together
they are called the Canal Des Deux Mers.

Started in 1666 and built by as many as 12,000 men, crossing rivers,
tunnelling through hills, it runs 235 kilometres and requires over 100
locks. It is a love-affair of man, nature, and engineering...."

Orient-Express: Canal du Midi 
http://www.orient-express.com/web/taif/taif_route_midi.jsp


Search criteria:
longest man made canal in the world
longest "man made" canal france
"Canal du Midi" france

I hope this is helpful.

Best regards,
Rainbow

bravo