N.J. Stat. Ann. § 13:12-19

The canal and banking company is hereby authorized and directed, as soon as the water shall have been drained off from the canal under authority of the act mentioned in section 13:12-13 of this title, to proceed promptly to remove such highway and road bridges as have heretofore been maintained by the canal and banking company at intersections of the canal with existing highways and roads and to refill the canal bed at these points and to grade down the approaches and to replace such bridges with roadways connecting with the adjoining highways or roads, graded, paved or surfaced to conform to the adjoining highways or roads respectively.