15.12.240   Import and export of earth material.
Where an excess of one thousand (1,000) cubic yards of earth per project site is moved on public roadways from or to the site of an earth grading operation, all the following requirements shall apply:
A.   Either water or dust palliative or both must be applied for the alleviation or prevention of excessive dust resulting from the loading or transportation of earth from or to the project site on public roadways. The permittee shall be responsible for maintaining public rights-of-way used for handling purposes in a condition free of dust, earth, or debris attributed to the grading operation.
B.   Loading and transportation of earth from or to the site must be accomplished within the limitations established in Section 15.12.210 of this grading code.
C.   Access roads to the premises shall be only at points designated on the approved grading plan.
D.   The last fifty (50) feet of the access road, as it approaches the intersection with the public roadway, shall have a grade not to exceed three percent. There must be three hundred (300) feet clear, unobstructed sight distance to the intersection from both the public roadway and the access road. If the three hundred (300) feet sight distance cannot be obtained, flagmen shall be posted.
E.   A stop sign conforming to the requirements of the California Vehicle Code shall be posted at the entrance of the access road to the public roadway.
F.   An advance warning sign must be posted on the public roadway four hundred (400) feet on either side of the access intersection, carrying the words “truck crossing.” The sign shall be diamond shape, each side being thirty (30) inches in length, shall have a yellow background, and the letters thereon shall be five inches in height. The sign shall be placed six feet from the edge of the pavement and the base of the sign shall be five feet above the pavement level. The advance warning sign shall be covered or removed when the access intersection is not in use. (Ord. 48, 1990)