Environmental Barricades are polyethylene tanks, similar in appearance to jersey barriers, that ballast with water and interlock with special gaskets to create a water tight seam. Weighing only 50 lbs empty, they are easy to handle, transport and deploy. Filled with water in 60 seconds, they weigh 615 lbs and can be used as an instant flood or spill control barrier of unlimited length and configuration. Used as a temporary sedimentation pond, they can provide controlled drainage and filtration through five tiers of 1 1/2" threaded holes. Many other applications are possible. Call 1-800-663-6149 for more details.