Rothrock, J.
I. The two causes were heard and determined in the eourt below upon the same evidence, and they are presented in this court upon one abstract, and upon the same arguments. The ultimate question involved in both cases is, have the plaintiffs such a right to the land upon which the brick building is in course of erection as to entitle *428them to an injunction preventing the defendants from so using the land %
It appears from the evidence that the railroad now owned by the Chicago, Rock Island & Pacific Railroad Company was constructed in 1859 or 1860, and that the road now belonging to the Chicago, Burlington & Quincy Company was built in I860. The land in controversy is situated at the city of Ottumwa, on the Res Moines river. The railroads were constructed across a bend in the river, upon land which was below ordinary high water mark. The defendants are owners of the land which was bounded by the river at the point opposite to the lines of railroad. The Chicago, Rock Island & Pacific road was built next to the shore of the rivei’, and the other road further out in the stream. The lines were practically parallel with each other, and about eighty feet apart. The land being below ordinary high water mark, it was necessary to raise embankments upon which to lay the tracks. These embankments were from sixteen to eighteen feet in height, and fourteen or fifteen feet wide on top, with a width of base of from sixty-three to sixty-eight feet. These figures may not be entirely accurate, and there is quite a controversy between the parties as to whether the bases of the two embankments met and overlapped each other. We do not regard this as an important question in the case, because whether the embankments covered the whole of the intervening space or not does not appear to us to be a controlling feature of the case.
The brick building, the subject of the controversy, is situated between the two railroads, and within a few feet of the •tracks of the respective roads. It may not be that these tracks are as close to each other as those originally laid. Both roads have side tracks which have been laid since the original embankments were made, but this fact we regard as of no importance in determining the rights of the parties. We think that if it be held that the plaintiffs had the right to appropriate the land, and construct their roads upon it, *429that right extended at least to the base of the embankment of each road, because the base of the embankment was as much a part of the structure as the ties and iron rails ; and the defendants have no right to construct a building which encroaches upon any part of the embankment, whether the attempt is made upon the surface, as made by the defendants, or by using that surface-as a base upon which to fill up the intervening space to a suitable height upon which to erect •a building. The building in course of erection is so near the tracks of each road that a perpendicular line downward from each end of it would cut the respective embankments as they were originally constructed. The building in question is forty-five feet long.
1. RIPARIAN rightsnavi-navigable”01 rivMnot*1 o£ onanged. It is conceded that the railroads were constructed below ordinary high water mark. The Des Moines river was declared to be a navigable stream by act of congress dated ° ° . August 8, 1846. The defendants or their grantors> being the owners of the land bounded by the river, had no title beyond ordinary high water mart. The title to the whole bed of the river was in the state. McManus v. Carmichael, 3 Iowa, 1; Tomlin v. Dubuque, B. & M. R. R'y Co., 32 Id., 106; Musser v. Hershey, 42 Id., 356. The act declaring the stream to be navigable was repealed by an act of congress passed January 20, 1870. But this court has three times determined that the repealing act did not invest riparian owners with title to the bed of the river, and that the boundaries of their lands were not extended thereby. Wood v. Chicago, R. I. & P. R’y Co., 60 Iowa, 456 ; Serrin v. Grefe, 67 Id., 196, waft. Steele v. Sanchez, ante, p. 65. In Wood’s case it was held that the riparian owner could not maintain an action to recover possession of land, being below ordinary high-water mark, from the railroad company, which began to ocsupy the .same with its road bed while the river was yet, in contemplation of law, a navigable stream. That action was against one of the plaintiffs herein, and it is said that the land in contro-*430versv in that ease was near the land in dispute in the suits at bar.
2.._-trail-ofvravover*Reel of navigable stream: revision of 1880, § 1328. Did the plaintiffs acquire any right to that part of the bed of the river by appropriating the same for the use of their roads? Section 3 328 of the Eevision of 1860, which was in force when the plaintiffs’ . railroads were constructed, is as follows : “ Anv ^ railroad corporation shall be authorized to pass over, occupy and enjoy, without payment ©f damages, any of the school, university, and saline or other lands of this state : provided, no more of such lands shall be taken than is required for the necessary use and convenience of such corporation.”
In the case of Tomlin v. Railroad Co., supra, the defendant constructed its railroad along the Mississippi river, below ordinary high-water mark. Tomlin, the riparian proprietor, claimed that he was entitled to damages by reason of the construction of the road. It was held that he had no cause of action. The decision was based upon the idea that the railroad was constructed under legislative authority. Ibis true, as claimed by counsel for appellant, that the section of the statute above cited is not quoted in the opinion. But, as there was no other act of the legislature then in force granting that right, this provision of the statute must have been in the mind of the court. That such was the fact is recognized in the case of Renwick v. D. & N. W. R’y Co., 49 Iowa, 664.
It appears to us that there can be no doubt that the cited statute authorized the construction of the plaintiffs’ roads, and that they acquired the right thereunder to hold and possess at least the full width of land which they actually appropriated by their embankments, as against all claims of the owners of land bounded by the river.
_. tifle byaccretion. But counsel for the defendants claim that the land upon which they propose to erect and maintain the brick building was made by accretion. The technical defini-fqon 0f accretion, as defined by Bouvier, is “the increase of real estate by the addition of portions of soil by *431gradual deposition, through the operation of natural causes, to that already in possession of the owner.” It may be that an owner of real estate bounded by a stream may have the right to construct walls or other contrivances to prevent encroachments of the stream upon his land, and by these artificial additions to the banks he may use the land below ordinary high-water mark. But we do not think any right by accretion attached to the land in controversy. If the claim be well founded, all of the land now occupied by both railroads is the property of the defendants, under the doctrine of accretion, and the line of defendants’ land is the present high-water mark of the Des Moines river. We have seen that the roads were lawfully constructed upon the public lands of the state, and the defendants have no title nor right thereto. And it is equally untenable to claim that the defendants have any right to take possession of any land across the land appropriated by the Rock Island Railroad Company, and erect a building between the two roads. The lawful appropriation of the land by the Rock Island Railroad Company cut off accretions to defendants’ land, and established a line beyond which no right by accretion can be acquired. To so hold would invest the defendants with the title to a tract of land between the railroads in no manner connected with their land upon the shore of the river.
4 pleading-as™sisSto£Ute wgiit-I I. The above considerations dispose of the question as to the ownership and right of possession of the land in controversy, abstractly considered. But the defendants claim that the plaintiffs have no right to an injunction, because they did not allege in their pleadings that they took and held the land under the provisions of the statute above cited. This was not necessary. They did aver that they had the “ legal right to take, hold, use and occupy a right of way 100 feet wide ” over the land in controversy. The legal right was based upon a public statute of the state, which it was not necessary to set forth or cite in the pleadings.
*4325. estok>:m,: corporation: notice to ota-cers: title to land. III. There were certain deeds made by riparian owners, and the defendants deposited earth between the railroads to brine the surface np to a level with the railroad ° A tracks. It is claimed that these acts estop the J-plaintiffs from now making claim to the land. We do not think, in view of the evidence, that the doctrine of estoppel can have any application. There is nothing in the record showing that any officer of the plaintiffs had, any knowledge that any claim to the land was made by the defendants until the commencement of the erection of the building.
c. equity: injuiictíon?1'
IY. It is farther claimed that injunction is not the proper remedy ; that the action should have been at law, for damages. We do not think this position is well taken. There can be no doubt that equity will enjoin encroachments upon land by making excavations, erecting permanent buildings, and the like.
In our opinion the injunction was rightly granted.
AFFIRMED.