(A) Roadbed. The structural design of the road-bed shall include the determination of the thickness of the subbase, base, and asphalt surfacing to be placed over the basement soil according to an accepted engineering method.
(B) City Engineer specifications. The City Engineer shall specify the structural design for the streets.
(C) Soil tests. The subdivider may, at his sole expense, make preliminary tests of the soil over which the surfacing and base is to be constructed and furnish the test reports to the City Engineer for use in determining a preliminary structural design of the roadbed. After the rough grading has been completed, the City Engineer shall have tests performed, at the subdivider's expense, to determine the final structural design of the roadbed.
(D) Thickness of materials. In no case shall the thickness of the base material be less than six inches, nor shall the thickness of asphalt concrete surfacing be less than two inches.
('66 Code, § 9-4.609) (Ord. 275-C-S, passed 3-11-75) Penalty, see § 9-4.903