Opinion by

Under authority to do so, conferred upon it by the Acts of June 26,1895, P. L. 336, and May 11, 1911, P. L. *201244, the County of Allegheny took over a township road located between the townships of Forward and Elizabeth. It runs for some distance along a stream, into which a smaller one flows through a culvert forming part of the roadway. There was no guard rail on either side of the road at the point where the culvert crossed it, and the appellee while walking along the highway, on a dark and foggy night, fell from the side of it where the small stream entered the culvert, sustaining the injuries for which he seeks compensation in this action. The jury found that the county had been negligent in not properly guarding the road at the point where the plaintiff fell from it, and that he had not contributed to the accident by any carelessness of his own. From the judgment on the verdict the county has appealed.

The first reason urged in asking for a reversal of the judgment is that, as the county is a quasi-municipal corporation, and took over and improved the township road as an agent of the State, it is not answerable for any negligence in failing to keep it in proper repair and condition, because not made so by statute. By the sixteenth section of the Act of 1895 it is declared: “All such roads and highways, and all parts thereof, improved in accordance with the provisions of this act shall be deemed, taken and treated as and become public highways of the said county, and shall be subject to the control and supervision of the proper county commissioners; and it shall be the duty of said several counties to keep, maintain and repair the same whenever and as often as it shall be found necessary, and all road supervisors, authorities, persons or townships heretofore required to maintain and keep in repair such roads or parts thereof, shall thereupon and thereafter cease to have any management of or control over said roads, or any part thereof, and such supervisors, authorities and townships are hereby relieved from all duty and responsibility in and about the care, maintenance and repair of all roads improved under this act and becoming county roads”; and *202by the first section of the Act of 1911 it is made the duty of a county to maintain and keep in repair any road or highway constructed or improved under that or any former act. While neither of these provisions expressly imposes any liability upon a county for neglect to maintain properly a township road which it takes over, what has been held as to the liability of the county for failure to maintain its bridges is equally true of its liability for failure to maintain its roads. “ ‘In this state the duty (to repair) is statutory, and therefore we must look to the statute for its nature and extent’: Rapho v. Moore, 68 Pa. 404. The Act of June 13, 1836, P. L. 551, required public roads, including bridges, to be ‘constantly kept in repair.’ The Act of April 13, 1843, P. L. 221, provides: ‘It shall be the duty of the county commissioners...... to repair all bridges erected by the county, and to pay the expenses of such repairs out of the county treasury.’ The Act of March 30, 1905, P. L. 81, makes a precisely similar provision as to ‘All county bridges heretofore erected or to be hereafter erected.’ Although counties are not by these statutes expressly made liable for injuries resulting from neglect properly to maintain their bridges, yet we have uniformly and long held that a mandate to repair carries with it a responsibility, which, if neglected, may give rise to such a liability; and the thought running through our cases is that these statutes fix an imperative duty upon the counties properly to’ repair a bridge, which includes the obligation to maintain it, ‘so as to protect against injuries by a reasonable, proper and probable use thereof in view of the surrounding circumstances, such as the extent, kind and nature of the travel, and business on the road of which it forms a part’: McCormick v. Washington Township, 112 Pa. 185”: Gehringer v. Lehigh County, 231 Pa. 497. In Wasser v. Northampton County, 249 Pa. 25, the complaint of the plaintiff was of the failure of the county to maintain a sufficient guard rail along a road at a point where it bordered on a canal. The road had been taken *203over and maintained by tbe county under tbe County Road Act, and, in speaking of its liability for failure to guard the same properly at a dangerous point, we said: “It is contended for appellant that it was tbe duty of tbe county in this instance, as it is of townships in all cases, where tbe highway runs along tbe edge of a precipice or dangerous embankment, to erect guards or barriers for tbe protection of tbe traveling public, and that failure to perform this duty makes tbe county, or township, as tbe case may be, liable in damages for injuries resulting from such neglect. With this statement of tbe .law no fault can be found. It was tbe duty of tbe county in tbe present case to erect a guard rail at tbe point of tbe accident, but this duty bad been performed and tbe guard rail was there.” In Bucher v. Northumberland County, 209 Pa. 618, tbe question was as to tbe liability of the county for negligence in failing to keep in good' condition tbe sidewalk in a public street in front of tbe court bouse. As no statutory duty to do s.o bad been imposed, no liability existed, and it was, therefore, said : “But no statute of this State has been brought to our attention which imposes upon tbe counties any liability for negligence in tbe care of tbe highway or of tbe sidewalk in front of tbe county buildings...... Under tbe Act of June 26, 1895, P. L. 336, counties are empowered to improve or construct certain roads, which shall thereafter be maintained as county roads, and kept in repair at tbe expense of tbe county. But this does not apply to a street or highway within tbe limits of a borough or city.”

Tbe Act of 1895 relieves township authorities from “all duty and responsibility in and about tbe care, maintenance and. repair of all roads” improved under tbe provisions of tbe act and becoming county roads. Tbe said duty and responsibility must, for tbe safety of tbe public in traveling over tbe highways, rest somewhere, and it is by clearest implication imposed by the statute upon a county taking them over. What before tbe taking *204over had been the duty of the township becomes the duty of the county, and, for failure to perform, liability rests upon it which had rested upon the township. Whether a county is bound to put up a guard rail at a particular point on a road under its control depends upon the circumstances of each case, and, in the present one, that question was properly submitted to the jury.

The plaintiff testified that he was walking along the road on New Year’s night, about seven or eight o’clock; that it was so dark he could not see where he was going; that he did not know where he was on the road; that he was trying to keep in the middle of it; that he heard a vehicle coming and took a step or two from what he supposed was the middle of the road, and fell into the run. The questions of his contributory negligence and the negligence of the county were submitted under the following correct instructions: “The question for you to determine is whether or not, considering the nature of the road at that place and all the circumstances, it was the duty of the county to maintain some kind of a guard rail there......I submit that question to you, gentlemen, as a question of fact, and the method of determining that is to determine whether that was reasonable and whether in your minds what the county commissioners did (because they are just acting in the place of the supervisors of the township) — whether what they did was ordinary care under the circumstances, or whether in not putting up such a guard rail they were guilty of a breach of duty, or ordinary care. That is the real question in this case. If, in your opinion, considering all the circumstances, that was a place where it was not the duty of the county commissioners to maintain a guard rail, then they were not guilty of negligence in not maintaining it. If it was not their duty — and of course in all these cases the burden is on the plaintiff to show by the weight of the evidence that there was negligence — if you are not satisfied by the weight of the evidence there was negligence on the part of the county commissioners in not keeping *205a guard rail there, then you will find a verdict for the defendant without going into any other question. If you come to the conclusion it was negligence not to maintain a guard rail there under the circumstances, then the next question will be, was Mr. Clark himself using due care, because a man who is hurt, even through somebody’s negligence, but also hurt by negligence of his own, which contributed to the injury, cannot recover, because the law does not undertake to measure the difference between one man’s negligence and another......If you find the county was negligent and he was not negligent, then he would be entitled to recover.”

The assignments of error are all overruled and the judgment is affirmed.