unless you find from a preponderance of the evidence that the defendant has proved its affirmative defense that the sole cause of such damage was an act of God, i.e., the action of the elements which the defendant could not, in the exercise of reasonable care and diligence, have foreseen. The burden of proof lies with the defendant to establish its affirmative defense.
“In connection with plaintiffs’ second theory, I instruct you that, if you find, from a preponderance of the evidence, that the construction of and the maintenance of the road and bulkhead by the defendant King County have resulted in a depreciation in the value of plaintiffs’ property, you will find for the plaintiffs. The burden of proof lies with the plaintiffs to establish their second theory.”
We are of the opinion, from an examination of the pleadings and testimony in this case, that respondents proceeded on two theories: one, negligence in the maintenance of the drainage system and the bulkhead; and two, an unconstitutional taking in violation of Art. I, § 16, of the Washington constitution.
We held in Great Northern R. Co. v. State, 102 Wash. 348, 173 Pac. 40, that the action of the state, in the construction of a highway on a steep hillside above a railroad track, by blasting and dumping material causing slides, obstructing the track and damaging it, constituted a taking under Art. I, § 16, and the state was liable in damages even though the state did not condemn the railroad company’s property in advance. In the case at bar, if the direct, proximate cause of the slide on February 9, 1951, was the creating of a precipice in 1942, at the top of the slope above respondents’ property, that would constitute a taking in violation of the constitutional provision. As we view the evidence, the creating of the precipice in 1942 was not the direct, proximate cause of the slide in 1951.
The trial court felt compelled to give instruction No. 2 because of our holding in Kuhr v. Seattle, 15 Wn. (2d) 501, 131 P. (2d) 168. In that case, the plaintiffs owned property on the corner of Fairview avenue and Shelby street in Seattle. The slope of Shelby street descending to Fairview is twenty-seven per cent for the first half block and twenty per cent for the balance. When Eastlake was improved,