API RP 1172: 2014 [paper]

API RP 1172 (R2020): Recommended Practice for Construction Parallel to Existing Underground Transmission Pipelines, 1st Edition, 2014.

Construction activities parallel to existing transmission pipelines, for any distance, are the focus of this recommended practice (RP). Activity of concern includes construction activity that could impact an existing facility, such as excavation or movement of equipment across the pipeline or within the easement that could affect the safe operation of the existing pipeline. This RP is intended as a resource to assist all parties to safely manage construction activities of new or modified facilities parallel to existing underground transmission pipelines.

The primary emphasis of these guidelines is on the interaction between existing transmission pipeline operators and those planning to construct in a parallel fashion. Contractors working on behalf of the constructing party, including environmental and survey professionals, design engineers, construction contractors, and operators of excavation and earth moving equipment, are encouraged to engage in work practices that are in conformance with these guidelines. These guidelines have been developed such that they can be incorporated into contract documents executed with contractors and subcontractors by whichever party is involved in or responsible for construction activities.

API Recommended Practice 1172, API RP 1172, D11721.
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