Question: What are the modern names of branches of this navigable canal that passes through the Henhull parish?
Sentence (from "Contour canal"): A contour canal is an artificially-dug navigable canal which closely follows the contour line of the land it traverses in order to avoid costly engineering works such as boring a tunnel through higher ground, building an embankment over lower ground, or constructing a canal lock (or series of locks) to change the level of the canal.
Relevant evidence: No