delivered the opinion of the Court.
*80 . These are cross writs of error to a judgment of the District Court of Idaho in a condemnation case.. The plaintiffs in error are owners of a tract of 120 acres, which was the object of the suit by the United States. The jury rendered a verdict of $6,250.00 for the plaintiffs, and the court added $328.00 as interest at seven per cent., from the date of the issuing of the summons to that of the judgment. The plaintiffs denied the power of the Congress under the Federal Constitution to condemn the land because not taken for a public use. This entitled them to come to this Court under § 238 of the Judicial Code; arid so the United States sued out a cross writ of error to question the legality of including in the judgment the interest item.
Plaintiffs’ tract lies just outside the present limits of American Falls in Idaho. The town has 1,500 people and is so- situated in the valley of the Snake River that three-fourths of the town; or 640 acres, will be flooded by the waters of a reservoir which the United States proposes to create, for irrigation of its arid public land, by damming the waters of the river.
The Sundry Civil Act of March 4, 1921, c. 161, 41 Stat. 1367, 1403, appropriates'$1,735,000 in addition to an un-expended balance for the continuation of the construction and extension of the irrigation system called the Minidoka Project, “with authority in connection with the construction of American Falls Reservoir, to purchase or condemn and to improve suitable land for a new town site to replace the portion of the town of American Falls which will be flooded by the reservoir, arid to provide for the removal of buildings to such new site and to plat and to provide for appraisal of lotsm such new town site and to exchange and convey such lots ift 'full or part payment for property to be flooded by the reservoir and to sell for not less than the appraised valuation any lots not used for such exchange.”
*81 The United States has purchased 410 acres for the new town site and needs 165 acres more of which plaintiffs’ tract of 120 acres is part. Negotiations for purchase from the plaintiffs failed, as they demanded $24,000.
The plaintiffs contend that the power of - eminent domain does not extend to the taking of one man’s property to sell it to another, that such an object can not be regarded as for a public use of the property, and, without this, appropriation can have no constitutional validity. The District Court held that the acquisition of the town site was so closely connected with the acqúisition of the district to be flooded and so ngcessary to the carrying out of the project that the public use of the reservoir covered the taking of the town site. We concur in this view.
The circumstances of this case are peculiar. An .im~ portant .town ..stood in the way of a necessary improvement by the United States. Three-quarters of its streets, alleys and parks and of its buildings, public and private, would have to be abandoned. The buildings could not be moved except to the gradually rising ground east of the Snake River. There was a bluff one hundred feet high on the other side of the river. The tract of four hundred and seventy-five acres selected for the new town site was the only practical and available place to which the part of the town to be flooded could be moved so as to be united with the one-quarter of the old town which would be left: American Falls is-a large settlement for that sparsely settled country and it was many miles from a town of any size in any direction. It was- a natural and proper part of the construction of the dam and reservoir to make provision for a substitute town as near as possible to the old, one.
No one would say that a legislative act authorizing ?. railway company tó build a railroad exceeds the coy- , stitutional limit by reason of a specific provision that the' *82 company may condemn land not only for the right of way but also additional land adjacent thereto for use as borrow pits in making fills and embankments, or for use as spoil banks or dumps for the earth excavated from tunnels and cuts. Such adjacent land would certainly be devoted to the public use for which the railway was being constructed. If so, then the purchase of a town site on which to put the people and buildings of a town that have to be ousted to make.the bed of a reservoir would seem to be equally within the constitutional warrant. The purchase of a site to which the buildings of a town can be moved and salvaged and the dispossessed owners be given lots in exchange for their old ones is a reasonable adaptation of proper means toward the end of the public use to which the reservoir is to be devoted. The transaction is not properly described as the condemnation of the land of one private owner to sell it to another. The incidental fact that, in the. substitution and necessary adjustment of the exchanges, a mere residuum of the town-site lots may have to be sold does not change the real nature of what is done, which is that of a mere transfer of the town from one place to-another at the expense of the United States. The usual and ordinary method of condemnation of the lots in the old town, and of the streets and alleys as town property, would be-ill adapted to the exigency. It would be hard to fix a proper value of homes in a town thus to be destroyed without prospect of their owners’ finding homes similarly situate on streets in another part of the same town or in another town near at hand. It would be difficult to place a proper estimate of the value of the streets and alleys to be destroyed and not to be restored in kind. A town is a business center It is a unit. If three-quarters of it is to be destroyed by appropriating it to an exclusive use like a reservoir, all property owners, both those dusted and those in the remaining quarter, as well as the State, whose subordinate agency of government is the munici *83 pality, are injured. A method .of compensation by substitution would seem to be the best means of making the parties whole. The power of condemnation is necessary to such a substitution.
The circumstances of this case are so peculiar that it would not be surprising if no precedent could be found to aid us as an authority. There is one, however, which presents a- somewhat close analogy. In
Pitznogle
v.
Western Maryland R. R. Co.,
“ The condemnation of a part of this land, here sought to be condemned, for a substitute private road or way is incident to and results from the taking, by reason of public necessity, of the existing private road for public use, and the use of it for such purposes should, we think, be regarded as a public use within the meaning of the Constitution ”.
Our conclusion is not in conflict with that - class. of cases with which the Justices of the Supreme Judicial Court of Massachusetts dealt in the
Opinion of Justices,
The remaining question in' this case arises on . the cross writ of error of the United States by which exception is taken to the court’s having included in the judgment interest at seven per cent, on the value of the property, as found by the jury, from the date of the issuing of the summons until the date of the judgment. The land remained in the possession of the owners up to date of the judgment and they cultivated the land meantime and gathered crops therefrom.
The District Court, in directing the jury, followed the law of the State (§ 7415, Compiled Laws of Idaho, 1919; § 5221, Idaho Revised Codes, 1908) in which the land lay and the court was sitting, as follows:
“ For the purpose of assessing compensation and damages, the right thereto shall be deemed to have accrued at the date of the summons, and its actual value, at that date, shall be the measure of compensation for all property to be actually taken. ... No improvements put upon the property subsequent to the date of the service of summons shall be included in the assessment of compensation or damages.”
The Idaho statute has been construed by the Circuit Court of Appeals of the Ninth Circuit to justify the court in adding interest .upon the value fixed by the jury from the date of the summons until the judgment.
Weiser Valley Land & Water Co.
v.
Ryan,
“Having such right to compensation at a given time, it would seem that the owner ought to have interest up”' *85 the amount ascertained until paid. In the meanwhile he can claim nothing for added improvements, nor is he entitled to any advance that might affect the value of the property.”
Counsel for the United States cite against such a ruling the case of
Shoemaker
v.
United States,
“ It is true that, by the institution of proceedings to condemn, the possession and enjoyment by the owner are. to some extent interfered with. He can put no permanent improvements oh the land, nor sell it, except subject to condemnation proceedings. But the owner was in receipt of the rents, issues, and profits during the time occupied in fixing the amount to which he was entitled, and the inconveniences to which he was subjected by the delay are presumed to be considered and allowed for in fixing the amount of the compensation. Such is the rule laid down in cases of the highest authority.”
This was followed in
Bauman
v.
Ross,
“ The payment of the damages to the owner of the land and the vesting of the title in the United States are to be contemporaneous. The Constitution does not require the damages to,be actually paid at any earlier time; nor is the owner of the land entitled to interest pending the proceedings.”
In these cases, the value found was at the time of taking or vesting of title and the presumption indulged was that the valuation included the practical damage arising from the inability to sell or lease after the blight of the *86 summons to condemn. Where the valuation is as of the date of the summons, however, no such elements can enter into it and the allowance of interest from that time is presumably made to cover injury of this kind, to the land owner pending the proceedings. It often happens that in the delays incident to condemnation suits the loss to the owner arising from the delay between the summons and the vesting of title by judgment is a serious one. The interest charge under the Idaho statute has the wholesome effect of stimulating the plaintiff in condemnation to prompt action. Moreover the plaintiff may reduce to a minimum the rents and profits enjoyed by the defendant because, under the Idaho statute, the plaintiff may have a summary preliminary hearing before commissioners to fix probable damages and, by depositing the amount so fixed with the clerk of the court, if the defendant will not accept.it, the plaintiff may obtain immediate possession. Within, less than a month after bringing suit,, he can .thus appropriate to himself the rents and profits of' the land, and in enjoyment of them can await the final judgment.' Idaho Compiled Statutes, 1919, Vol. 2, § 7420; Idalm Revised Codes, 1908, Yol. 2, § 5226.
It is urged, however, that the federal conformity statute as to condemnation suits, which directs federal courts to conform-the practice and procedure “ás near-.as may. be ” to that of the courts of the State where the land is, does not require or authorize the federal courts ter allow interest to. thp property holder except according to the rule laid down in the
Shoemaker Case, the Bauman Case, Seaboard Air Line Ry.
Co. v.
United States,
“ Considerable time may elapse after the commissioners fix the value of the land before r is ultimately paid for. They can only fix'it as of the ;dme they act. They can not say what it will be at any definite time in the future. .The value may for many reasons change, and the rental value may be materially affected by the tenure of the owner rendered uncertain by possible protracted litigation. Considerations' like these dopbtless' *88 '■ i - ipted the Legislature of the state to provide that the amount of the award should bear interest until paid as the best and fairest available method of providing against the possible consequences just suggested. Without holding that the requirement for payment of interest is one of the ‘ modes of proceeding ’ which, by section 2 of the act of August 1, 1888, is made compulsory upon the courts of the United States, we are satisfied to conform to it as a palpably fair and reasonable method'of performing the indispensable condition to the exercise of the right of eminent domain, namely, of making ‘ just compensation ’ for the land as it stands, at the time of taking. ‘ The time of taking ’ under the Minnesota statute, supra, is when the payment is made for it. . . . It is better, when possible, to act in harriaony rather than in conflict with the established policy of a state.”
In the last opinion of this Court on the question of interest in the appropriation of land by the United States, that in
Seaboard Air Line
Ry. v.
United States,
Judgment affirmed.
