The river mouth forms a sand barrier and often overflows its banks to the valley.

Within the first hour of the war, the Egyptian engineering corps tackled the sand barrier.

Palestinian security officers hung back as youths swarmed over sand barriers piled by Israeli troops.

On some roads there are still sand barriers.

Administration officials said today that the Iraqi forces continue to build sand barriers, construct roads for reinforcements and dig in their tanks.

To blast through the sand barrier the Israelis estimated would take at least twenty-four, probably forty-eight hours.

There are about 90 units (30 percent) from the total 258 units of sand barriers (sabo) were damaged.

The D9s razed the sand barrier around the canal and cleared mines near it.

Massed behind sand barriers and rocks, the hordes of Ferahgo sent flaming arrows up at the mountain.

Raptail trotted off to do his master's bid-i ding, dodging around rocks and behind sand barriers.