In Shea v. City of San Bernardino (1936) 7 Cal. 2d 688, the city argued that it was powerless to fix a dangerous condition that existed in a railroad crossing because the Railroad Commission had exclusive jurisdiction over its right of way. The Supreme Court held "the improvement of streets within the boundaries of a city is an affair in which the city is vitally interested. The governing board and officers of the municipality in dealing with such an affair may not complacently declare that they were powerless over a long period of years to take any steps to remedy a defective and dangerous condition that existed in one of the principal streets of the city." ( Id. at p. 693.)