The position of the Association is that the encasement of pipelines transporting liquids under pressure across, over,
or under a railroad operating right-of-way, or that railroad right-of-way proposed for future operations, is in the
best interest of the railroad, public, and parties contracting for the crossing.
The encasement, when installed in accordance with the recommended practice of the Association, permits the
pipeline operating company to install a facility of usual design, at or near, a usual depth of cover or a usual
overhead clearance requirement. Installation of the encasement pipe prior to pipeline construction activities
reduces the risk of delay caused by encountering unanticipated facilities, poor subsurface conditions, or difficult
attachment at the crossing location.
The encasement affords the pipeline and railroad companies a measure of protection from damage to their
operating facilities resulting from the actions of unauthorized parties, or the errant actions of authorized parties.
Additionally, it shields the pipeline from potential physical damage as a result of derailment, thus reducing the risk
of product loss in the surrounding soil and promoting the earliest possible safe return to operation of the pipeline
facility. By conducting the flow of lost product to the outer limits of the railroad operating right-of-way, the risk of
delay or curtailment of railroad operations during repair and cleanup activities is reduced. Allowing both the
railroad and pipeline companies to resume safe operation of their facilities as quickly as possible following an event
serves the interests of the public, the railroad, and the pipeline company.
The Association supports research for engineered encasements that allow cathodic protection and railroad service
protection.