He developed the model for dropping river levels an inch per day.

With more rain on the way, river levels are expected to rise even further.

High river levels can prevent vessels from using this section.

At the time, there was some construction going on near the river level but surely that's finished by now.

Between seasons there is a 30ft variation in the river level.

"Perhaps the river levels were different four thousand years ago."

They did not have time to wait for the river level to rise.

It can be seen only during a drought period when the river level is very low.

It topped out at 49.6 feet above average river level.

In addition, dozens of other groups keep a nervous eye on the river level.