scour

Bridge scour may scoop out scour holes and compromise the integrity of the structure.

Fish as near the middle of the stream as you can in the spring months, and also on the shallows and scowers; but in the winter, in deep holes; let the bait drag two or three inches on the ground.

I am particularly interested in the wool processing indusries, which make a major contribution to the Hawke's Bay regional economy. There are five wool scours in the area, all of them located within the Hawke's Bay electorate. […] I am pleased to report that the prototype Drycom system was given its first full trial at the UEB Awatoto scour in Hawke's Bay.