renovation experts and surveyors plan to venture into
2,500-year-old drain canals in Persepolis in order to dredge
Achaemenid engineers designed these ducts to collect rainfall
and waste water from the great palaces and archeologists have
already recognized 2 km of these canals, whose height varies
between 1.2 m to 2 m while measuring 0.45 m to 1.2 m in width.
“Since most water on the surface of Persepolis enters these
ducts and since they have become run-down over the years, we
intend to dredge as many as 100 sq m of them,” said Hassan
Rahsaz, the technical head of Persepolis, adding the operation
would cover those canals located beneath the southern part of
the treasury and the so-called Half-Built palace.
A team of 6 experts are going to enter the ducts, hoping to find
some valuable artifacts and potteries in there. Another team had
dredged 610 m of the canals in 2002.