He constructed two parallel canals for bringing goods to the port.
The house sits within a large landscaped demesne which features a pair of long parallel canals in front of the house.
A parallel canal had been built between Zahias and Bragha, but two great falls prevented full access to the sea.
Under Augustus a compromise was reached with the construction of a parallel canal.
Development began in the eleventh century as the area was drained and parallel canals were dredged.
Presently the electric barrier gave way to concrete ones; the whales were swimming along four parallel canals, too narrow for more than one to pass at a time.
These parallel canals provide water for cultivated land further from the river.
Some observers saw a phenomenon they called "gemination", or doubling - two parallel canals.
In this area the river is joined by a parallel canal, which was built to power the Grevenbroek mill.
In 1832, French naturalist Alcides d'Orbigny proclaimed that the pools and parallel canals had been used for washing gold.