Grading of the entire area of the subdivision shall be done with regard to the natural drainage of the area involved, and open ditches, conduits, catch basins, inlets and manholes of adequate size as approved by the City Engineer shall be constructed to provide for such drainage.
Subgrade drainage, as directed by the City Engineer, shall be provided for the drainage of the subgrade beneath all paved areas.
All storm drains crossing beneath the paved areas shall be of reinforced concrete or an approved equal in strength and durability.
All trenches under the paved areas shall be backfilled with sand, gravel or screenings, unless otherwise directed by the City Engineer.
Downspout tile shall be connected to the storm sewers where storm sewers are available. Lot drainage shall be done in accordance with City standards.
(Ord. 1961-3. Passed 7-31-61.)