waterbar

plural waterbars

1. A barrier built across a steeply sloping road or trail in order to direct the flow of water and prevent erosion; waterbreak.

   Most waterbar spacing, however, is in the magnitude of 80 - 120 feet.

   1973, Information Series - Volumes 7-13

   2 more examples

   With waterbar placement every 20 feet, in addition to mulching, the expected erosion would be less than 1 ton per acre, well within the tolerance level.

   1980, United States. Bureau of Land Management. Casper District, Buffalo resource area oil and gas environmental assessment, page 152

   The angle at which the waterbar lies across a trail is important. Too close to the perpendicular, and silt will build up behind the waterbar; too small an angle will cause the trail to wash out.

   1987, Thomas H. Mikkelsen, Donald B. Neuwirth, Jake Widman, Public Beaches: An Owners' Manual, page 29

2. Waterstop.

   A suitable waterbar should be incorporated in the joint to prevent the ingress of water.

   2013, Roy Chudley, Roger Greeno, Building Construction Handbook, page 293

   2 more examples

   A valve type of waterbar therefore is maintained in the stressed condition caused by shrinkage of the concrete during setting.

   1968, Peter L. Critchell, Joints and cracks in concrete, page 93

   It is essential to prevent distortion of the waterbar before and during concreting; to some extent this can be ensured by the use of clips, attached to the dumb-bell and wired to the reinforcement.

   1973, Engineering Equipment Users Association., The Use of Plastics Materials in Building, page 21