Conventional weights
Forms, materials and specialized technicians are mobilized to the job site. The actual weights are produced on-site using local contract labor and concrete to minimize costs.

Set-on weights, simply placed on top of the pipe, are used in wetland areas not subject to flowing water. Currents can tip these weights off the pipe.

Bolt-on weights , are constructed in halves, and then bolted around the pipe. Designed for use in areas subject to water currents, these weights can be attached to pipe before it is placed in the ditch or floated into place and sunk.

Continuous concrete coating
Continuous coated pipe is advantageous when lengthy sections of pipe are to be weighted, such as wide river crossings or offshore lines. In addition to providing negative buoyancy, the concrete provides protection for the pipe. Coated pipe can also be used under road or rail crossings by pulling the coated sections through a steel casing or slick bore. This also gives the pipe additional protection from corrosion induced from galvanic action if insulators fail.

Concrete coating is available via machine or form-applied coating. Prepared at the job site to any thickness, form-applied coating saves the cost of transporting heavy coated pipe over long distances. The process includes application of a circular outer form to the pipe and filling of that annular space with concrete.