The aqueduct at Carpentras
has been built between 1720 and 1734 (the order was
given to Jean de Clapiés in
1714; in 1721 the construction was stopped because of
an outbreak of the plague). It consists of 47 arches,
is 631,5 m long and is 23 m high. The width of the canal
is 0,25 m, the construction itself measures 1,75 m.
For more pictures of this aqueduct see
source of the rivir Auzon can be
found on the slope of the Mt. Ventoux. It flows into
the Ouvèze. It was a natural barrier for the Gallic
Carpentoracte. In 1989 the
banks were turned into a park.
At the east side the 18th century aqueduct as well
as the 19th century irrigation canal can be seen.
Lugdunum (Lyon) used
to be provided by
4 aqueducts, including
the last aqueduct built of the river Gier
(see the photographs); a brickwork construction with 11
tunnels and several siphons. The source could be found
at the Massief de Pilat. The angle of the whole building
was very accurate: 1 mm per meter!
The four aqueducts 'produced' some 75.000 m2 per day!!!
At the beginning of the 2nd century, under the
reign of Hadrianus, they commenced building it. They
think more than 12 years were necessary to finish the
aqueduct of approx. 86 km,
needed to bridge 42 km. This aqueduct was the only
one that could provide the Roman centre of Lugdunum
with water (the centre,
Forum Vetus, lay on the hill Fourvière).
1st: the Roman aqueduct
of the Monts
d'Or; emperor Augustus built a aqueduct to provide Lugdunum with water in 20 bC. The 26 km long aqueduct bridged
a distance of about 10 km, from Fontaine du Thou, near
Les Minimes, near Lyon.
The angle was 1,4 m at 1 km.
L'aqueduc de l'Yseron was constructed in 20 or 10 bC;
the source was located at Monts du Lyonnais. Lenght:
27 km. Average angle: between 5 and 80 m at 1 km.
Aqueduc de la Brevenne (beginning of the 1st century); from l'Orjolle,
near Aveize (Monts
du Lyonnais) to Fourvière, near
Lenght: 70 km (to bridge 26 km!) . The
decline was 1,4 m at 1 km.