It became the law of the trial in this case, however, that the town would be liable if its negligence in maintaining the system contributed to cause the damage, and the jury was so instructed. The plaintiff had the burden of proving that the defendant was negligent in the maintenance of the system and that the damage was caused at least in part by that negligence. Soucy v. Manchester, 78 N.H. 591, 98 A. 518 (1916 ). In considering whether there is evidence to support such findings, we consider the evidence most favorable to the plaintiff. We conclude that the evidence so considered will not support a plaintiff’s verdict.
Negligence cannot be inferred from the mere fact of injury in tire situation which existed in this case.
Rosenblum v.
Griffin, 89 N.H. 314, 197 A. 701 (1938 ). The only evidence of anything in the system which could have caused a blockage was that in the late afternoon of February 25 a piece of wood was found in the manhole along with some debris including leaves and sticks. There was evidence that the piece of wood could cause a blockage if it were to become lodged across the exit pipe. There was, however, no evidence that it was so lodged nor was there any evidence when it or any of the other material entered the system. Even if it could be found that the piece of wood caused a blockage, there was no evidence from which it could be found that tire town had actual notice of its presence or that an obstruction had existed for such a length of time as to charge the town with such knowledge.
Rowe v. Portsmouth, 56 N.H. 291 (1876).
See also Jakel v.
Brockelman, 91 N.H. 453, 21 A.2d 155 (1941);
Gobbi v.
Moulton, 108 N.H. 183, 185, 230 A.2d 747, 749 (1967).
There was evidence that in response to telephone calls, a town truck came and stopped by one of the catch basins but that the men did not get out of the truck but drove on without doing any - thing. If it were shown that there was a stoppage of flow due to an accumulation of material over the grate of the catch basin, the failure of the town employees to investigate this possibility and remove the obstruction would furnish a basis of liability. There was no such evidence, however, but on the contrary, one of the plaintiff’s witnesses testified that he put an oar down into tire catch basin and found the opening clear of obstruction. The evidence, therefore, fails to establish any causal connection between any possible negligence on the part of the crew of the town truck and the damage claimed.