CP Management of Multiple Pipeline Right-of-WaysLen J. Krissa P.Eng; Engineering SpecialistEnbridge Pipelines Inc.10201 Jasper AvenueEdmonton AB T5J 3N9 CanadaJerry DeWitt Sr. CP SpecialistEnbridge Energy Partners222 US 41Schererville IN. 46375 USAJerry.DeWitt@enbridge.comChristophe Baeté CP ManagerElsyca n.v.Vaartdijk 3/603 3018 Wijgmaal Belgiumchristophe.baete@elsyca.comEnbridge operates the world’s longest and most complex crude oil and liquids transportation system with approximately 24738 kilometres (15372 miles) of pipeline throughout North America. The mainline corridor is comprised of multiple pipelines within the same right-of-way (ROW) having instances of up to seven parallel pipelines.Repeated construction of newer high performance coated pipelines within the corridor and subsequent coupling to common legacy cathodic protection (CP) systems has increased the complexity of the ROW. At present the ROWs consist of an assortment of pipeline vintages with various diameters and coating types which can consequently result in unbalanced CP.This Project includes the in-depth research and analysis of various methods procedures and materials beneficial in regulating and maintaining appropriate levels of CP in multi-pipeline corridors. Monitoring coupons have been installed and rectifiers are equipped with remote monitoring units. Select pipelines were evaluated using inline inspection technology tool that indirectly measures CP currents flowing in the pipe wall. All data has been consolidated and used to generate a computational model for further in-depth analysis. The purpose of such a model is to refine testing procedures develop corrective measures and establish new guidelines for optimizing CP operation and effectiveness within ROWs containing multiple pipelines.Rationally managing CP within such multifaceted arrangements is necessary in achieving adequate potential levels on high current demand pipelines while avoiding the detrimental effects of overprotection on adjacent newer pipelines with high efficiency coating systems.Keywords: multiple pipelines right-of-ways CP management stray current interference overprotection coating disbondment