The photo shows a section south of Walkern where since the 1990s there has been only seasonal flow.

Except in the Northeast there are few large rivers, and many have only seasonal flows.

Originally the seasonal flow entered the lake directly causing heavy siltation.

The cities and the Federal Government agreed to spend $24 million to buy the rights, in effect changing the seasonal flow.

They provide native landscape irrigation by extending seasonal or perennial flows of water.

In about hundred years, a port city of sea vessels from England just lost its status as the river became a seasonal flow by this time.

In a large river system like the Mekong, seasonal flows can be quite variable from year to year.

"A lot of this increase is seasonal flows of money at the end of a quarter," he said.

The system has altered the seasonal flow of the river in order to meet higher electricity demands during the winter.

The construction of the dam in 1963 also eradicated the seasonal flows of the river.