constitute prejudicial error. This is particularly so in view of the fact that the jury, by its verdict, accepted the evidence of the plaintiff and rejected that of the defendant.
However, the defendant also contends that even under the plaintiff’s theory of the case, the instruction was required because an issue was presented as to whether the alleged accumulation of water on the highway on account of the drainage system was a “natural” or. “artificial” accumulation. The defendant maintains that this was properly an issue of law for the trial court to decide, but failing that, it should have been submitted to the jury.
To date, this court has treated the “natural” versus “artificial” issue as a question of law. See, e.g., Kobelinski, supra; Stippich, supra; Laffey, supra.
In Kobelinski, supra, this court held that an accumulation of snow piled on the curb near a sidewalk when the walk was cleared, was not an artificial accumulation. This ruling was based in part on the .decision that it would not be consistent to permit a city which had not shoveled its walks at all to be immune for three weeks while yet holding liable a city which had partially cleared its walks by leaving the snow on the curb. Kobelinski, supra, page 515. In Stippich, supra, this court’held leaving snow on a sidewalk where it had fallen did not create an artificial accumulation. In Laffey (1958), 4 Wis. 2d, supra, this court determined that ice which formed on a sidewalk because the city firemen had discharged water thereon, constituted an artificial accumulation of ice.
This court’s decision in Stippich, supra, extended the common-law rules of negligence and nuisance to cases in which a city is sued. Therefore, it is appropriate to examine the question of “natural” versus “artificial” accumulations as considered in the cases involving private parties. Thus, in Smith v. Congregation of St. Rose (1953), 265 Wis. 393, 61 N. W. 2d 896, this court held