Under the law of this State, the mayor and aider-men of the defendant city had authority to lay, make and maintain all such main drains and common sewers as they should adjudge to be necessary for the public convenience or the public health. St. 1869, c. Ill, § 1. Gen. Sts. e. 48. As there is no suggestion of any irregularity in the formal preliminary proceedings of the board of aldermen, it must be inferred that, in the construction of the sewer in question, the defendant was acting under this general authority and responsibility. An authority conferred upon municipal corporations or officers to determine where drains shall be built is in the nature of a judicial power, involving the exercise of a large discretion, and depending upon *397considerations affecting the public health and general convenience. Emery v. Lowell, 104 Mass. 13, and cases cited. The fact that the course or route selected will require the blasting of rocks, thereby subjecting the owners and occupants of adjoining houses to risk and inconvenience, though proper to be taken into consideration by the board of aldermen, is not sufficient to invalidate their decision. The balance of public convenience may still be in favor of the proposed course; and, at any rate, the decision of the question is within their authority.
It was ruled at the trial, not merely that the actual construction of the drain must be performed with reasonable care and skill, but that the amount of care must be commensurate with the dangerous nature of the work, that great care must be taken, and that no precaution must be omitted which careful men acquainted with the business ought to exercise in relation to the same. We do not understand that the plaintiffs object to these instructions, so far as they relate to the manner in which the work was to be done. Their complaint is that the court refused to instruct the jury, that, “ if the defendant or its agents knew that these blasting operations would be dangerous and likely to cause injury to persons or property, notwithstanding all the precautions that could be taken, and injury did result from such blasting operations, then the defendant is liable for all damages resulting from accidents incidental to such operations, provided the parties injured were exercising due care.” In other words, as it was pressed upon us in the argument, it was a want of due care at the outset to undertake and enter on such a dangerous work at all, and the defendant became responsible, in this action, for all accidents. This instruction could not properly have been given. If the board of aldermen had a right to say where the sewer should be laid, (as we cannot doubt they had,) and if the city, in its construction, furnished the degree of diligence, care and skill described in the ruling of the presiding judge, no private action of tort can be maintained against it. The cases cited by the plaintiffs are for the keeping of dangerous animals, or for wrongs done by one landholder in improving his own property in such a manner as to injure or destroy that of his neighbor. They furnish no analogy to the cases at bar
*398The rulings of the court as to notice of the blasts, and as to the burden of proof, were such as the plaintiffs requested, and were sufficiently favorable to them. The evidence as to the cause of the injury to the dwelling-house, and as to the exercise of due care by the female plaintiff, was conflicting. The verdict of the jury was given upon proper instructions, and has settled both these points in favor of the defendant.
Exceptions overruled.