California Code, Public Utilities Code - PUC § 7535

Whenever the track of one railroad intersects or crosses the track of another railroad, whether it is a street railroad, wholly within the limits of a city, or other railroad, the rails of either or each road shall be so cut and adjusted as to permit the passage of the cars on each road with as little obstruction as possible. If the persons or corporations owning the railroads cannot agree as to the compensation to be made for cutting and adjusting the rails, the condemnation of the right of way over the one for the use of the other road may be had in proceedings under Title 7, Part 3 of the Code of Civil Procedure, and damages assessed and the right of way granted as in other cases.