Opinion by
Smith, J.,The defendant is a corporation organized for tbe transportation and distribution of natural gas. In 1888, by a proceeding under the act of May 29, 1885 (P. L. 29), it obtained, across the plaintiff’s land, the easement provided by that act, and proceeded to lay its pipes. In 1893, its supply of gas being exhausted, it removed its pipes. This action is brought to recover compensation for injuries charged to have been done to the plaintiff’s land in this removal. On the part of the defense, it is contended that compensation for injury necessarily done in such removal was included in the original assessment of damages, and that the recovery in this action must be limited to “compensation for-any unnecessary injury.”
The statute under which the defendant acquired its easement provides (sec. 10) that “ prior to any appropriation the corporation shall attempt to agree with the owner as to the damage properly payable for an easement in his or her property; ” that upon failure to agree, “ the corporation shall tender to the property owner a bond with sufficient sureties to secure him or her in the payment of damages; ” that the bond, if not accepted, “ shall be presented to the court of common pleas of the proper county, after reasonable notice to the property owner by advertisement or otherwise, to be approved by it,” and that “ upon the approval of the bond and its being filed the right of the corporation to enter upon the enjoyment of its easement shall be complete.”
In the present case, the bond was filed and approved, whereupon viewers were appointed and the damages assessed as directed by the statute. If the damages here claimed were included in that assessment, or were “ damages properly payable ” for the easement, and therefore should have been included, this action cannot be maintained. There can be no severance of the cause of action: O’Brien v. Railroad Co., 119 Pa. 184 ; Denniston v. Philadelphia Co., 161 Pa. 41. If, however, they are not damages properly payable for the easement, and therefore could not have been assessed, they may be recovered here.
The statute does not define the character of the damages, or fix the condition of the bond beyond requiring it to be sufficient to secure the payment of damages. This, however, necessarily implies the damages “ properly payable.” In the bond filed by *20the corporation, the condition was for the payment of “ such damages as he (the owner) shall sustain by reason of the laying down and construction of said pipe line through the property aforesaid, when such damages shall have been agreed upon or assessed in the mode pointed out by law.” The owner made no objection to this condition, and the bond was approved by the court.
The plaintiff in the statement claims compensation for all the injury done to her land in the removal of the pipes, without distinguishing between that which was necessarily done and that which may have been done without necessity. The defendant in the points submitted conceded the plaintiff’s right to recover for any unnecessary injury, but contended that the award by the viewers included “all such damages as would necessarily and reasonably result from the removal of the pipe line.”
The issue between the parties, therefore, is whether the damages arising from the removal of the pipe could legally have been included in the assessment by the viewers.
The easement acquired by the gas company was the right to construct the pipe line. The transportation of gas through the pipes, and entry for the purpose of repairing or otherwise maintaining them, so long as the company should continue to occupy tbe land with them, are necessary incidents of the easement. The price to be paid for this easement and its incidents is compensation to the landowner for the occupation and use of the land which it involves, and for the injuries resulting from such occupation and use. As elements of compensation, only those injuries are to be considered which arise so naturally as to be foreseen with reasonable certainty, and are so definite in character that their injurious effects can be presently calculated, and measured, pecuniarily, with reasonable accuracy. Viewers and juries are permitted to take into account only injuries certain and definite in their nature and consequences, and substantially affecting the immediate market value of the land; while claims for damages based on theories, conjectures and possibilities have not been allowed: Wallace v. Jefferson Gas Co., 147 Pa. 205; Railway Co. v. McCloskey, 110 Pa. 436.
The principles that govern the ascertainment of compensation upon taking land for a public use — both as to the matters to be *21considered and those to be excluded — have been settled by numerous adjudications. One of the earliest cases is the Schuylkill Navigation Co. v. Thoburn, 7 S. & R. 411, which was a proceeding to assess the damages sustained by the landowner through the construction of a dam by the Navigation Company. Mr. Justice Gibson, delivering the opinion of the court, said: “ The material inquiry is, at what point of time were the jury to estimate the damages as having been suffered? Indisputably, at the time when the injury complained of was complete: which was the moment the dam was finished, or, rather, when the obstruction, by swelling the water, permanently produced its most injurious consequences. The principle that the extent of an injury at the time it is suffered is to govern the compensation to be received, without enhancement from subsequent circumstances, is familiar and applicable to all cases, which I at present recollect, where compensation is to be made in damages.” After citing various examples, he continued: “ The compensation was to be prospective, as well as retrospective, but to be estimated with reference to the time when the injury was committed. It was in fact to be the price of a privilege to swell the water to a particular height for an indefinite time. Now tins price was due the moment the privilege was entered upon and the price could be ascertained, which was obviously the time when the obstruction was first completed. The jury were therefore to ascertain what was then due; and the amount clearly could not be enhanced, or in any way affected, by subsequent injuries, the consequences of the obstruction.” After demonstrating that a claim based on anticipated loss of profits could not be taken into account in the assessment of damages, he adds: “ I mention this to show the danger of taking into consideration circumstances posterior to the time when the privilege is fully entered on, and its consequences to the individual tobe compensated are ascertained. 'The jury are to consider the matter just as if they were called on to value the injury at the moment when compensation could first be demanded.” The view thus announced has repeatedly been cited with approval by the Supreme Court: Railway Co. v. McCloskey, 110 Pa. 436; Becker v. Phila. & Reading R. R. Co., 177 Pa. 252; and there has never been a departure from it.
Among the elements to be considered in fixing the compen*22Sation for an easement like the present are the amount of land disturbed by laying the pipe line, the permanent occupancy of a part of it as a path to walk over for purposes of inspection or repair, and the injury to fences and crops: Wallace v. Jefferson Gas Company, 147 Pa. 205; McGregor v. Gas Company, 139 Pa. 230; the manner in which a farm is affected by the location and construction of the pipe line upon it: Denniston v. Philadelphia Co., 161 Pa. 41; the loss in value to the tract by the appropriation of part of the underlying strata for the support of the surface: Pennsylvania Coal Company v. Versailles Gas Co., 131 Pa. 522; Wallace v. Jefferson Gas Co., 147 Pa. 205. And generally, all such matters, as owing to the peculiar location of the easement, may affect the convenient use and future enjoyment of the property, are proper matters for consideration : Railway Co. v. McCloskey, 110 Pa. 436. But damages which may possibly result from a negligent operation of the easement cannot be considered as an element of its price. Even an injury arising from the leakage of gas, actually occurring prior to the assessment of damages, cannot be taken into account, “ unless it appears that such would be the natural and ordinary result of the appropriation: ” Denniston v. Philadelphia Co., 161 Pa. 41. “ The right to damages accrues on the location and construction of the line, and is in no sense enlarged or abridged by subsequent occurrences : ” Ibid.
It is conceded — and indeed it cannot be questioned — that the corporation has a right to remove its pipes on abandoning the easement. There is, however, no assurance that it will, do so; but even assuming this to be its duty, it is clear that the resulting injury to the land must depend on the condition in which the surface will be left upon their removal, compared with its condition while they remain. But it is impossible to determine what that condition may be or the extent of damage that may arise from it. It cannot be said that a condition injurious to the owner must necessarily or even probably result from the removal of the pipes. Whether the gas company will, on removing them, leave open the trench they had occupied, or will partially fill it, or will wholly fill it and leave the surface in as good condition as before, or will do other damage to the land, can by no possibility be ascertained. There is no ground for presumption or inference as to the conditions that will fol*23low the removal of the pipes, and purely conjectural conditions form no basis for estimating the possible damage to the landowner. If there may be a resort to presumption, it may well be presumed that the gas company will regard its legal obligations in the premises; and a failure to perform them may be redressed by action. In fixing the landowner’s compensation, there is no ground, in either reason or authority, for taking into account conditions that cannot be foreseen as even probable, or damages that cannot be estimated with the slightest approach to certainty. The compensation must be ascertained from conditions and effects that are either of common knowledge and observation as the ordinary and natural result of the easement and its incidents, in such a degree that they may reasonably be anticipated, or can be satisfactorily proved by the established rules of evidence.
There could hardly be a clearer illustration of the impossibility of an estimate by a jury of the damage arising from the removal of the pipes than is presented in the case before us. There is evidence of injury from the falling in of the sides of the trench after the removal of the pipes, through the operation of rain and frost, consequent on delay in filling the trench, and of injury to land adjacent from driving over it for some distance, with heavy loads, while it was wet and soft. Without, however, a knowledge in advance of the existence of conditions or the employment of methods necessarily leading to injury, and the extent of their operation, no estimate of the consequent damage is possible. But evidence on this subject is wholly unattainable; and it is utterly beyond human prevision to determine whether the work of removal will be conducted under conditions such as contributed to the injury in this case, under conditions productive of other injuries, or in such a manner as to entirely avoid damage. The language of Mr. Justice Green in Wallace v. Jefferson Gas Co. (supra), with reference to a conjectural injury by reason of a possible fracture of the pipe and escape of gas, from a subsidence of the surface that might follow a removal of the underlying coal, is peculiarly applicable to the present case. As in that case, the element of damage for which the appellant here contends “ depends upon an uncertain and problematical event, which may never occur.” It is “ merely speculative, imaginary and theoretical.”
The right to remove the pipes can in no just sense be regarded *24as an incident of the easement. Rights incident to an easement are those essential to its enjoyment or maintenance. They come into existence with the easement and cease on its termination. Rights arising from the abandonment of an easement are not of this character. The right which a natural gas company acquires, by the proceeding under the statute, is that of constructing, maintaining and using a pipe line. Its right to remove the pipes is not acquired through that proceeding, but is necessarily implied in its undoubted right to abandon the easement and withdraw from the occupation and use of the land. We must not confound the abandonment of the easement in this case with either the abandonment or the removal of the pipes. The abandonment of an easement imports a permanent nonuser of the rights embraced in it; it does not necessarily imply an abandonment or a removal of the appliances through which the easement is enjoyed. The removal of the pipes is not an enjoyment of the easement, but an act following its abandonment. It is not an exercise of any right vested in the corporation by the proceeding under which the easement is acquired, but the exercise of a vested property right existing independently of the easement and to be enjoyed only upon its abandonment. Compensation under the statute is to be made only for the rights acquired under the statute. The right to abandon the easement and remove the pipes not being thus acquired, there can be no claim under the statute for injuries apprehended from its exercise.
The solution, however, of the question under consideration does not depend on whether the right of removal is an incident of the easement or not. The right to compensation for consequential damages arising from the exercise of the power of eminent domain is of constitutional and statutory development, and he who seeks remuneration for such injuries must bring his demand within some express provision of the law. In no aspect of the question can it be said that the possible injuries from removing the pipes, on abandoning the easement, are caused by the original taking and construction; they can arise only from a separate and subsequent cause, bearing no sequential relation to the primary construction or succeeding operation of the pipe line.
It is further urged, however, that the apprehension-or the *25possibility of damage, in tbe event of tbe removal of tbe pipes, might have affected the market value of the land not immediately occupied by them at the time of the assessment, and therefore must be considered as an element of damage as incidental to the taking, and that the rule permitting viewers to inquire whether the emission of smoke, cinders and sparks, from locomotives, lessens the present market value of lands contiguous to railroads, should be extended to this class of cases, so that possible injury to the freehold, in the event of the removal of the pipe, might be considered and allowed by the viewers.
As to the first part of this proposition, it is sufficient to say that the right of a railroad company to operate its road, and the right of water, gas and pipe line companies to transport water, gas and oil, are, in a certain sense, incidents of the respective easements in the lands of others acquired by those corporations. Yet it will hardly be contended that injuries to persons or property caused by the exercise of these “incidents” should or could be anticipated and provided for in advance. On the same principle, the mere fact that the right of a gas company to remove its pipes may be incidental, to the taking and construction presents, in itself, no reason why any damages caused by doing so should be presumed or anticipated by viewers who may conclude their duties even before any pipe is laid. Non constat that any will be laid.
As to the second part of the proposition, there is no sound' analogy between the conditions suggested. It is of common knowledge and observation that a railroad by reason of the noise, smoke, cinders and sparks from locomotives, exposes adjacent property to injuries and annoyances which necessarily affect its use and lessen its market value immediately upon the construction and operation of the road; and the degree of injury from these causes can be estimated in advance witjr quite as much accuracy as during the operation of the road. These dangers and annoyances begin with and continue during the operation of the road, and cease upon its abandonment. Tn no reported case has the attempt been made, under this rule, to recover damages which might be incurred after an abandonment of the railroad, although it is quite possible that much more damage might result from such abandonment, — leaving cuts, embankments, and other obstructions to the use of the land by *26the owner, — than from the removal of gas pipe from the ground. To apply that principle to cases of damage by reason of the removal of gas pipe, as contended for, would be to extend a rule, founded in reason and in fact, to conditions not presently existing, and which may never arise. To do so would permit a recovery, without rule or limitation, for damages which have not arisen and, which if ever arising, are uncertain and wholly conjectural in both character and extent.
In the absence of legislation specifying the character and extent of the damages recoverable in proceedings under the act of 1885, the Supreme Court has determined that the damages assessable in this class of cases shall be such as are recoverable under the constitutional provision that “ just compensation for property taken, injured or destroyed ” shall be first made or secured when a corporation takes pi'ivate property for public use by virtue of its right of eminent domain: Fisher v. Baden Gas Co., 188 Pa. 301. In all the reported cases the several elements considered in assessing the damages, within the meaning of this section of tbe constitution, relate to injuries that presently affect the value of the property and are of a reasonably certain character. This constitutional provision was held in Fisher v. Baden Gas Co., supra, to fix the measure of damages in cases where land Is taken by gas companies. Its proper construction, therefore, will determine the question raised -here. This section has been construed, upon an exhaustive discussion, in the case of Railroad Co. v. Marchant, 119 Pa. 558, and on its meaning and interpretation not only the interests involved in that case but the conservation of a wide range of corporate interests largely depended. Chief Justice Paxson, in construing this section, there said: “Just here, it is proper to say, there is not a word about ‘ consequential ’ injuries in the constitution. The word itself has acquired a broad popular meaning by which persons may be misled. In judicial proceedings it should be used intelligently and with due regard to its proper meaning. In its application to the constitution we understand it to mean an injury to a man’s property, the natural and necessary result of the construction or enlargement of its works by a corporation; an injury of such certain character that the damages therefor can be estimated and paid or secured in advance as provided in the constitution. ... It is very plain to óur *27view that the constitutional provision was only intended to apply to such injuries as are capable of being ascertained at the time the works are being constructed or enlarged, for the reason, among others, that it requires payment to be made therefor, or security to be given in advance. This is only possible where the injury is the result of the construction or enlargement. For how can injuries which flow only from future operation of the road, which may never happen, be ascertained in advance, and compensation made therefor? ” It was also said in that case that the word “injury,” as used in the constitution, “means such a legal wrong as would be the subject of an action for damages at common law.” Tins forceful interpretation of the constitutional provision in question has been followed in all the later cases requiring its application, although dissented from by one distinguished member of the Supreme Court.
The construction thus given to this section harmonizes our law on the subject with the general doctrine laid down in the text-books and the decisions of the higher courts of sister states, and limits the inquiry by the viewers or jury, in these cases, to the difference between the value of the land as a whole, immediately before the injury or construction, and its value immediately after, as affected by the easement, in conformity with the established rule applicable to other cases Avhere property is taken under the right of eminent domain.
From what has been said the following deductions may be made:
1. Under the constitution, the injury for which a recovery may be had must be such as would be actionable at common law.
2. The injury must be the natural and probable result of the construction, enlargement or operation of the corporate works.
3. It must be of such certain character that the damages therefor can be ascertained and paid or secured in advance.
4. A merely possible injury in the future cannot form the basis of a claim for damages under the constitution or the statute.
5. The measure of damages is “just compensation” to the landowner, which must be ascertained by a comparison of the value of the property as a whole immediately before and its value immediately after the construction, as affected by the easement, the same as in other cases.
*28These conclusions receive further support from the following authorities: Railroad Co. v. Gilleland, 56 Pa. 445 ; Port v. Huntingdon R. R. Co., 168 Pa. 19; Erie Railroad Co. v. Hummell, 27 Pa. 99 ; Railroad Co. v. Lazarus, 28 Pa. 203; Gilmore v. Railroad Co., 104 Pa. 275; Comstock v. Ry. Co., 169 Pa. 582; Railroad Co. v. Stauffer, 60 Pa. 374; Railroad Co. v. Rose, 74 Pa. 362; Mills on Eminent Domain, 326; Randolph on Eminent Domain, see. 377.
The court below restricted the right of recovery to injuries committed “ outside of the original appropriation,” and intimated its view of the proper extent of such appropriation. This however did the appellant no harm, since a part of the damage for which it was legally liable was thus excluded. In fact, there had been no appropriation of the land beyond the space occupied by the pipes. Whether any limits should have been fixed in the original taking is not now material. If fixed, they could have served only to define the extent of occupancy and use while the easement existed. The right to remove the pipes upon the termination of the easement, though absolute, must, like the right of a tenant to remove fixtures at the termination of his tenancy, be exercised without injury to the freehold. Therefore, whatever might be said of the assignments of error, on the theory that the defendant is liable only for unnecessary injury, becomes unimportant in our. view of the case. Holding as we do that injuries which may be apprehended as possible, from the removal of the pipes, upon the abandonment of the easement, cannot be considered in the assessment of damages by the viewers, but, when actually occurring, form an independent cause of action, and that the corporation is liable for all such injuries, whether necessary or unnecessary, the rulings by the court below were as favorable to the defendant as it had a right to expect.
The judgment is therefore affirmed.