Mr. Justice White
delivered the opinion of the court:
March 9, 1906, N. G. Strayer, in his own behalf, *373and that of others similarly situated, brought suit against The Arthur Irrigation Company, a corporation, to prevent the enlargement and widening of the latter’s irrigating ditch between La Porte avenue and Laurel street, in the city of Port Collins. Answer and replication were filed, and trial had, resulting in finding's of fact and entry of decree in favor of plaintiffs. The defendant brings the cause here, for review on writ of error.
' The plaintiffs are residents of Port -Collins and owners of lands situated along the right of way of the irrigating ditch between the points designated. The ditch was constructed in 1873, and the lands were then owned by the builders of the ditch, or by persons assenting to its construction. Thereafter, the particular land was platted into lots and blocks as an addition to, and became a 'part of, the city. The plaintiffs, or their assignors, severally acquired ownership of lots in such addition, and built houses and other improvements thereon in close proximity to the ditch line, with the full knowledge and acquiescence of the defendant. It was alleged in the complaint that the ditch £ £ at all times has been limited to a width not exceeding ten feet upon Its bottom”; that April 2, 1902, in á case wherein the city of Port Collins was plaintiff and The Arthur Irrigation Company was defendant, a decree was entered by the district court of Larimer county, wherein it was found and decreed, in reference to the particular ditch; in question* “that said ditch extends through the city of Port Collins, crosses and runs along divers and sundry streets and alleys of said city of Port Collins; that said ditch was constructed in 1873, and, as heretofore maintained through said city of Port Collins, was ten feet wide- upon the bottom ; that the only right of way for the maintenance and operation of said ditch through said city, which *374the defendant and its grantors hath heretofore owned and enjoyed, has been for a ditch ten feet wide upon the bottom; * * * that the defendant, its agents, * * * be, and they are, and 'each of them is hereby, perpetually enjoined and restrained from enlarging or increasing the width of said ditch, or permitting the same to be enlarged or increased at the points of intersection of said ditch with any of the streets or alleys within the corporate limits of the city of Fort Collins, beyond or to a greater extent than ten feet wide upon the bottom; * * * and they are, and each of them is, hereby perpetually enjoined and restrained from- changing, altering, interfering with or widening the banks or top- of said ditch at said street and alley intersections, or any part thereof, so as to change the same from its present condition.”
The complaint then alleges that the plaintiffs are entitled to the full benefit of 'said decree; that defendant' intends to, and, unless restrained, will widen its ditch to more than three times its present width; that the ditch cannot be widened without the total destruction of the houses, barns and improvements of plaintiffs, built and constructed along the line of the ditch as aforesaid.
The answer claimed a right of way for the ditch forty feet in width — twenty feet on each side of the center line of the ditch;, denied that defendant acquiesced in the building of the improvements by plaintiffs,- or their, assignors, along the line of the ditch; admitted the entry and existence of the decree pleaded; denied thatdefendant, in widening its ditch and operating the same, would destroy the improvements of plaintiffs • along the line thereof, “unless the plaintiff, and those-whom he.represents, had trespassed and encroached on defendant’s-right of way. ” '.
*375The defendant contends that the court erred in refusing- to find and decree that the ditch was entitled to a right of way forty feet in width; and in decreeing that the right of way “extends only to the ditch cutting, as the ditch is now constructed, with the right to deposit upon the banks thereof immediately adjacent to such cutting, such dirt and debris as shall be taken out in the proper cleaning of such ditch.”
"When the owner of lands voluntarily consents to the construction of an irrigating ditch across or over the same, the right of the owner of such ditch to maintain and use the same as built, is absolute against all persons. — Tynon v. Despain, 22 Colo. 240, 249. And when one buys lands, through which, at the time, there exists an irrigating ditch in operation, the right of the owner of such ditch to maintain and use the same as before, is in no wise affected. The right so acquired is an easement in the lands through which the ditch runs, but the legal title to the lands upon which the servitude rests is in the owner of the servient estate. While the right so acquired extends to the bed of the ditch and sufficient ground on either side thereof to properly operate the same, it does not vest authority in the owner of the ditch to place a greater servitude or burden upon the lands than existed at the time the ditch was constructed, or was reasonably necessary to properly operate it. The extent of the right necessarily depends, in each case, upon various circumstances and conditions. Moreover, the right may be limited or curtailed by the action and acquiescence of the parties interested. Whatever may have been the rights of the defendant, if it had used the land .on either side of the ditch for the purpose of operating and maintaining the same, need not be deter*376mined herein. Fo'r a period of many years after the ditch was constructed, its owners do not appear to have made any attempt to utilize any lands, on either side of its ditch,- between the points in question. Some fifteen years after the construction of the ditch, and while these conditions continued, the owners of the fee platted the land into lots and blocks, and caused it to become a part of the city of Fort Collins. The plaintiffs became purchasers of some of these lots, and as recited in, and established by the decree, “during many years last past, have placed improvements, of the kind and character mentioned in said complaint, upon said lands; that said improvements have been constructed and otherwise placed upon the said lots and lands with the full knowledge and tacit acquiescence of the said defendant company, and its officers, agents, servants and employees, and that the same a.re very valuable and cannot be removed, destroyed or interfered with, without the commission of great and irreparable damage and injury- to the lots, and to the owners of the lots upon which they are situated, and that any material widening of said ditch would involve, as á consequence thereof, the injury, loss and destruction of said improvements.” The improvements in many cases were placed upon the lots more than ten years prior to the institution of the suit. Some of the plaintiffs purchased the lots with the improvements thereon, while others acquired vacant lots and improved the same. The officérs of the defendant company stood by and knowingly permitted, without protest or suggestion of infringement upon its right of way, the owners of the fee of the land to expend thousands of dollars in building houses, barns and stables, in planting trees, and making other improvements along the line of, and in close proximity *377to its ditch, during a long period of years. Under these circumstances defendant is precluded from disputing the right of the owners of the fee to- have, maintain and enjoy such improvements so- made. Hei that remains silent when conscience requires him to- speak, shall not he heard to- speak when conscience requires him to remain silent. The defendant was silent when the circumstances should have impelled it to- speak, if its rights were invaded. The policy-of the law will not now permit it to appropriate unto itself an alleged additional right of way, which it might have possessed by exercising a proper diligence, when plaintiffs, acting in good' faith, and believing that they, and not it, were the owners of, and entitled to its use, have expended large sums of money in placing permanent improvements thereon. The defendant held no right of way by deed. Its right was an easement depending solely upon continued use. It not only failed to use the particular-land in question, but acquiesced in its use and improvement by the very ones in whom the fee was vested.
The defendant further argues that the decree is uncertain, unintelligible, and impossible of construction, so as to inform either party of his respective rights; that it gives no definite information of what defendant’s right of way consists; that it enjoins defendant from interfering in any way with the improvements made along the bank of its ditch, and fails to disclose of what such improvements consist.
Perhaps the decree might have been made more definite and certain in some particulars, yet we do not consider it so imperfect as-to require us to set it aside. While the meaning of a decree necessarily depends upon its own terms, the pleadings upon *378which it is based may also be considered in-ascertaining its meaning. Moreover, every part of the decree must be considered in' its relation to every other part, and its fair meaning deduced from the whole instrument, 'bearing in mind the purpose and object of the suit as disclosed by the pleadings.— Drach v. Isola, 48 Colo. 134, 141. The pleadings disclose that defendant’s ditch did not exceed ten feet in width'on the bottom. It was established by the findings of fact that its right of way ‘ ‘ extends only to the ditch cutting, as the ditch is now constructed,. with the right to- deposit upon the banks thereof immediately adjacent, to said cutting, such dirt and debris as shall be taken- out in the proper cleaning, of such ditch.” The decree enjoined the defendant from increasing the width of its “ditch upon the bottom beyond a distance of ten feet, or to- increase in any wise the present width of the .top of the said ditch.” .The location- of.the improvements in relation to- the ditch, the permanent character thereof, and of the ditch, renders the language used, defining the right of way, reasonably certain, under all the facts and circumstances of this case. The identification of plaintiffs.’ improvements, which defendant is enjoined from injuring, does not appear to be uncertain. The decree enjoined defendant to use the least possible space for embankments consistent with the proper cleaning'out of its ditch, and in no event to commit injury to- the buildings or’ other 'permanent improvements standing along the line of the ditch, and directed p-laintiffs- to- remove their fences, to the end that defendant would have sufficient space for such debris so removed: Under this language,, and the conditions and circumstances of this case, a fair-mindfed person should have no difficulty in understanding and knowing the -particular improvements tile defendant' is enjoined' from injuring.
*379Other contentions of defendant are necessarily included in, and determined by our conclusions upon the questions hereinbefore discussed. The judg.ment is, therefore, affirmed.
Affirmed.
Chief Justice Campbell and Mr. Justice Musses. concur.