In unpaved city streets, the grantee shall use, in construction other than rails, such materials as are approved by the Director of Public Works. In paved city streets, the grantee shall use ballast, creosoted ties, tie plates and other appurtenances below the rails, such as are used in main-line construction of first-class railroads, except where a different depth of ballast is required by soil conditions in which case such depth shall be specified by the Director of Public Works.
('64 Code, § 10-51) (Ord. 168, passed 2-9-61) Penalty, see § 10.97