Dеfendant, a public utility company, is engaged in the construction of a dam which, when completed and full, will flood a portion of a county highway. Plaintiff brought this action to enjoin the flooding. Defendant has appealed from an adverse judgment, contending, principally, that under the stipulated facts the county has waived damages *819 to its property and is estopped by its conduct to obtain the relief sought.
For a number of years the county has maintained a public highway which, approaching from the west, crosses Sweet-water River over the Sacatara Bridge and then, a short distance to the east, crosses Peterson Canyon Creek over another bridge. In 1931, the board of supervisors adopted a resolution to the effect that the Sacatara Bridge was unsafe and that if a proposed dam on the Sweetwater River was constructed, it would be necessary to change the location of the bridge, rendering it not advisable then to repair or rebuild it. Several years later, after the county had appropriated funds to construct a new bridge, the county surveyor and ex officio road commissioner wrote to defendant company stating that the county intended to make certain road improvements, including a new bridge over Sweetwater River and a reduction of the curvature. The letter stated that the county was applying to defendant for “a temporary right of way” across its property “to serve until ... it becomes necessary to build a permanent line higher up to follow the high water contour of the proposed new dam.” The county forwarded with its letter a map showing both the temporary right of way and the proposed “future permanent road,” the latter located considerably to the north of the old route.
In the latter part of 1938, the company granted a “temporary right of way” over its land. This easement did not cover the area near the Sacatara Bridge but only a portion of the highway east of the Peterson Creek Bridge, and it was located almost exactly along the line of the original highway. The deed provided that the right of way should revert to the grantor company upon completion of the permanent highway or 90 days after notice to the county of the owner’s intention to construct a dam on the Sweetwater River. It also provided that by acceptance of the easement the county agreed that the owner should not be liable to the county for “any claim or damages of any kind or nature whatsoever arising out of or in any manner connected with the building of said dam and/or the inundation of the property hereinabove described.” The deed was accepted by the county and ordered recorded.
Shortly thereafter the defendant company wrote the county that two plans for the proposed dam with different spillway elevations, one at 1,355 feet and the other at 1,375 feet, had been considered; that an additional 10-foot allowance should *820 be made for flood crests; that “there is no definite information as to the time when construction of either of these will begin”; and that the county should consider constructing its highway and bridge at an elevation of 1,400 feet, leaving room for any change in plans of the company.
Pursuant to a request by the county, the company tendered a second temporary easement containing identical provisions relating to reversion and waiver of damages. The record indicates that this was to be an extension of the temporary easement of 1938, covering approximately the area between the two bridges but located considerably to the north of the old road. With respect to this tendered easement, the board of supervisors was informed by a deputy district attorney that, although the original plan had been to construct the new bridge at an elevation of 1,365 feet, the county had been notified that the bridge should be built at the higher elevation of 1,400 feet; that the county road department believed the cost of building at that elevation would be prohibitive; and that in any event the tendered easement (containing the reversion and waiver provisions) should not be accepted in its present form. The company was notified that the easement was not acceptеd “in view of the provisions contained therein.”
Plans for a new Sacatara Bridge at the old location were approved, and a particular design was adopted “because of the high salvage value of the superstructure in the event the . . . company elects to construct a dam. ...” The bridge was finished in 1941.
Thereafter, a third easement, dated December 19, 1941, for a new westerly approach to the Sacatara Bridge was tendered by the company and accepted by the county. It apparently followed the old road to a point about 2,400 feet from the bridge and then continued to the bridge on a line more or less parallel to the old road but a few feet to the north thereof. This easement, unlike .the one accepted in 1938, was not designated as “temporary,” but it was made subject to reversion to the grantor in the event of six-months’ nonuser or if the grantor “should at any time” construct a dam resulting in the flooding of any portion of the right of way. There was also a waiver of any claim for damages for the flooding of “said lands, or any portion thereof.”
In 1943, the company requested that a certain part of a road connecting with the highway in question be altered *821 so that equipment to be used in the construction of a dam could be moved over it, and subsequently a letter was sent thanking the county for speedy action on the request.
The company began building its dam without instituting proceedings in eminent domain to condemn the road and bridges or to determine that the proposed use of the land was more necessary to the public than its use as a highway. In September, 1943, defendant wrote to the county stating that construction of a dam had been started and might result in a flooding of a portion of the third easement granted in December, 1941, for the new westerly approach to the Sacatara Bridge; that the grant provided for reversion to the grantor in the event of flooding; and that the company would “be glad to cooperate in any way that we may in the granting of a new easement, that will not be flooded by the construction of our dam.” In October, 1943, a letter to the effect that the matter had been referred to the county counsel by the board of supervisors was sent to the district attorney with the notation: “cc California Water & Telephone Co.,” indicating that a copy was sent to the company. There were no further communications until September, 1944, at which time the defendant had spent over $800,000 in the construction of the dam. The present action was filed about a month and a half later.
When the dam is finished and the reservoir full, the water will flood both bridges, a portion of the highway immediately west of the Sacatara Bridge, and all of the highway between that bridge and a point beyond the Peterson Bridge, but the record does not disclose whether the maximum elevation of the dam will require that the new road and bridge be constructed as high as the 1,400-foot level suggested by the company. The company is still willing to grant to the county, without charge, an easement for “the permanent road as surveyed by the plaintiff.”
The trial court found that the company had “not been misled to its prejudice or injury by any act, conduct or declaration” of the county in connection with either of the temporary easements which the county accepted “or in any of the transactions of the parties relative to the construction and erection of said dam.” It concluded that the acceptance by the county of the “forfeiture, reverter, and waiver of damages clauses” in the two easements was an ultra vires act; that the county had no power to abandon a county high *822 way in such a manner or to “bind said Board by written contract to a particular line of official action toward a predetermined result,” or to make a gift of county property; that the clauses were null and void; that the county was not estopped to deny the validity of the clauses or assert its rights in the highway and bridges; and that the flooding of the highway would constitute a taking and damaging of the county’s property without compensation. Defendant was enjoined from flooding or interfering with the road and bridges “without first making just and adequate compensation to the plaintiff therefor.”
It is clear that plaintiff has established a prima fаcie case for an injunction against the threatened destruction of its property by flooding. In view of the findings of the trial court, defendant, in order to prevail upon this appeal, must show that the stipulated facts compel the conclusion that the county either made a binding agreement to waive damages to its property or is estopped by its conduct to claim damages. All permissible inferences, of course, are to be drawn in favor of the county and in support of the judgment.
Neither the acceptance of the easements containing provisions for waiver of damages nor any other conduct of the county created a binding contractual obligation * to relocate the road or to abandon or waive damages to it, since any such agreement was unauthorized by law and void. The methods by which county boards of supervisors may abandon public highways are set forth in sections 954 to 960.4 of the Streets and Highways Code. Public hearings, after proper notification, are required in most situations. If a road has remained impassable for five years it may be abandoned simply upon the board’s “own motion” (Sts. & Hy. Code, § 954), or, if it “has been superseded by relocation,” the board may summarily vacate and abandon by resоlution (Sts. & Hy. Code, §§ 960.1, 960.2). When the road has not actually *823 been superseded or become impassable, the Streets and Highways Code authorizes only two methods by which a board of supervisors may abandon it, one by “resolution of intention,” and the other, by petition of ten freeholders. Both of these methods require the fixing of a day for hearing, notice to all freeholders in the road district, publication of notice in a newspaper, hearing of evidence by any party interested, and a finding that the road, or portion thereof, “is unnecessary for present or prospective public use.” (Sts. & Hy. Code, §§ 956.8-960.)
No statute authorizes the making of a contract to abandon a road and locate it elsewhere.
In the present case, no portion of the road had been rendered impassable for a period of five years at the time the asserted contract was made, and little, if any, of the road had actually been “superseded” by a new permanent road. Although the old road may have been straightened or temporarily moved, pursuant to the two accepted easements, the principal or central section that will be flooded has not been changed, even on a temporary basis. It is apparent, therefore, that the only authorized methods by which the board of supervisors could abandon the road required both notice and public hearing.
The cases are apparently uniform to the effect that, if the Legislature has provided a method by which a county or city may abandon or vacate roads, that method is exclusive. (See
People
v.
County of Marin,
In the present case, since there has been no notice, hearing, finding as to public necessity, or resolution of abandonment, any agreement to relocate was unauthorized by law, and, under the authorities, was void.
A further reason for holding the agreement invalid may lie in the fact that, if enforced, it wоuld to some extent result in a delegation of authority to the company to determine when, if at all, the abandonment and relocation should take place. At the time the agreement was made the company had not definitely decided when the dam was to be built, and the clauses of the easements, in effect, provided for reversion and waiver of damages only in the event that the company should decide to flood the road. No time limitation was placed upon the dam project, and no provision was made for any change in circumstances that might render a future relocation contrary to best public advantage and necessity. A contract to delegate public authority and discretion to private *825 individuals is, of course, improper. (See 3 McQuillin, Municipal Corporations [2d ed., 1943], §1271.)
Finally, the company has apparently conceded that a county may not validly contract to waive damages for injury to an existing road.
The company contends, however, that since the county has a general power to abandon and relocate roads, it may be estopped by its promise to relocate even though it could not make a valid contract to do so and even though there was “irregularity” in the procedure by which the general power was exercised. In this connection it argues that the acceptance of the waiver clauses in the easements, although void as a contract, may nevertheless be considered as a part of the course of conduct by which it is claimed that the county led the company to believe that the road would be relocated. It should be noted, however, that the acceptance of these provisions is the only conduct of the county which might compel an inference that it agreed to bear the expenses of such a relocation. While the other acts of the county officials indicated that they were apparently in favor of having the dam constructed, this did not constitute a representation that the county would waive damages to its property nor compel a finding, contrary to that of the trial court, that the company was misled thereby.
It is true that in some “exceptional cases,” or situations where “justice and right require it,” a governmental body may be bound by estoppel.
(Farrell
v.
County of Placer,
*826
It is sometimes difficult to determine which of these rules is applicable in a particular case. It is clear, however, that neither the doctrine of estoppel nor any other equitable principle may be invoked against a governmental body where it would operate to defeat the effective operation of a policy аdopted to protect the public. (See
Miller
v.
McKinnon,
There is nothing inconsistent with this view in
Farrell
v.
County of Placer,
Here, however, we are directly concerned with strong considerations of policy. The Legislature, for the protection of the public, has declared that a road may not be abandoned without notice, a hearing, and a finding that the road is unnecessary for present or prospective public use. Enforcement of a bare promise to abandon would not only mean a complete disregard of these salutary legislative requirements but would also be inconsistent with the additional policy against the making of contracts by a public body to exercise
*827
its discretionary governmental powers in a particular manner. By indirect enforcement of such a “contract” the needs of persons using the highway might be ignored, and a method would be afforded by which officials and persons dealing with the agency could evade the law. (Cf.,
Miller
v.
McKinnon,
The argument that the company is not seeking to enforce the waiver provisions as a binding contractual obligation to abandon the road and locate it elsewhere is not helpful. The company’s defense of estopрel, as it admits, is based solely upon the theory that the acts of the county constituted an implied in fact promise to relocate, or, in other words, an implied representation that it would do so, upon which the company relied to its detriment. Application of estoppel under these circumstances would obviously be tantamount to specific enforcement of the void promise to abandon, relocate, and waive damages, contrary to both the policy and letter of the law.
Upon similar reasoning, it has been squarely held in other jurisdictions that contracts between public officials and рrivate persons for abandonment, vacation, or sale of streets are not enforceable by estoppel against the government where there has been insufficient compliance with the steps prescribed by law.
(State
v.
Castle,
44 Wis.
670; Provo City
v.
Denver & R. G.
W.
R. Co.
(C.C.A. 10th),
*828
In
State
v.
Castle, supra,
it was held that there could be no estoppel because “no law . . . authorizes the supervisors . . . to discontinue a highway by contract with the parties interested.” (
Courts have likewise refused to estop the government in many analogous situations where such questions of policy were present. (See, for example,
City of San Antonio
v.
Guadalupe-Bianco River Au.
(Tex.Civ.App.),
Defendant contends that
Greene County
v.
Tennessee Eastern Elect. Co.
(C.C.A. 6th),
Other cases have held cities and counties estopped to deny abandonment of streets, but here, also, considerations of public policy were either not involved or not discussed. (See
Meyer
v.
Meldrum,
The company urges as a separate ground for estoppel the fact that the county has retained the benefits of the asserted agreement. All of the California cases hold, however, that receipt of benefits by the governmental body is insufficient to raise an estoppel where, as here, the transaction is unauthorized by law and contrary to public policy.
(Miller
v.
McKinnon,
It should be noted, in connection with this contention, that the agreement was one-sided, with the greater part of the benefit running to the company. The county has maintained its road over the company’s property for many years, and the two accepted easements, designed to reduce curvature, were to a considerable extent superimposed upon the old right of way. Further, the easеments accepted by the county were temporary only, to cease as soon as the flooding occurred, and covered merely part of the road, not the whole of it. In exchange for this temporary right, the county, according to defendant’s version of the effect of the agreement, would be required to abandon its entire road in the locality to be flooded, together with the two bridges and any other county property injured or destroyed. It does not appear from the record that the building of the dam would constitute an adequate consideration for the abandonment of thе road. The agreement did not include any proposal to devote water or electric power to the benefit.of the county or of its residents, and there is no assurance or guaranty that any water or power would be so used, or that the dam would be operated for the benefit of the public, or that it would continue in operation for a reasonable period after the destruction of the highway by flooding. The mere fact that the county would be able to tax the project would not be an adequate consideration.
*831
Entirely independent of the question of estoppel it is assеrted that the county may not come into a court of equity and obtain injunctive relief without first offering to return the consideration it received for the void agreement, that is, without surrendering the benefits it enjoys under the temporary easements. Here, however, the consideration was transferred as a result of the invalid agreement, and clearly the county is not barred by failure to restore anything which it is no longer able to return. (Cf.
Miller
v.
McKinnon,
The company contends, finally, that the decree was too indefinite and uncertain to be valid or enforceable. It argues that it was enjoined from flooding the road or bridges “without first making just and adequate compensation to the plaintiff therefor,” but that the court failed to declare what would be just compensation, what factors should be considered in fixing compensation, or when the compensation should be paid. These matters were expressly left open, and it was contemplated by the decree that the compensation should be аscertained in subsequent proceedings if the parties were not able to agree upon a satisfactory settlement. The real issue presented by the county is whether compensation shall be paid for loss of the road, and no question is raised as to the right of the company upon payment to complete the dam and flood the road.
The judgment is affirmed.
Shenk, J., Edmonds, J., Carter, J., Traynor, J., Schauer, J., and Spence, J., concurred.
Notes
It does not appear that the county made an express, or specific, agreement to relocate the highway, and the only claim is that the conduct of the county—in main, thе acceptance of two easements purporting to waive damages by flooding to county property—amounted to an implied in fact agreement to abandon the existing road and to relocate the whole road at its own expense. Although there may be some doubt as to whether the waiver provisions coveted all the road or only the two end portions embraced by the accepted easements, the county has not raised the issue and has conceded that if the “forfeiture, reverter and waiver of damage clauses are valid and binding on the County of San Diego then there is an end to the litigation.”
