Plaintiff sued defendant Hecker and others to condemn certain parcels of land lying seaward to the Pacific Ocean. Although the issue of title was determined by the court, the question of value was heard by the jury. Hecker was declared to be owner of Parcels A, C and D, and the underlying fee of E, as to Parcel B, the trial court found that it consists entirely of artificial accretions, adjudged the state the owner thereof, and denied him any compensable right therein. It is from that portion of the judgment defendant appeals. The issues before us relate solely to the ownership of Parcel B and the existence of a frontage right or right of access to the sea.
Parcel B abuts the ocean and lies seaward from Parcel A; and since defendant acquired the property in 1913 the mean high tide line has progressed seaward. Near Parcel B were constructed the Santa Monica Pier in 1909, the Newcomb Pier in 1912 and a breakwater in 1933 and 1934; and it lies approximately 2,100 feet north of Newcomb Pier and 900 feet from the north end of the breakwater, which lies 2,000 feet long and 2,000 feet from shore. No artificial structure was ever erected at Parcel B. Between 1921 and 1954 accretions had extended the beach more than 400 feet seaward of the 1921 mean tide line fixed by the court as the seaward boundary
(Muchenberger
v.
Santa Monica,
Appellant’s primary contention is that, where alluvion is gradually and imperceptibly created, however caused, along *827 the shoreline, it belongs to the littoral owner; but if ownership depends on the cause of accretion, the trial court’s findings that from 1875 to 1912 the shoreline of Parcel B was in a state of equilibrium and that certain artificial structures were the sole cause of accretion to Parcel B since 1921 are unsupported by the evidence. He further claims that regardless of the ownership of Parcel B, as the littoral owner he possesses a special and vested right of access to the sea, or a frontage right separate from the land, which is compensable.
Inasmuch as the law in California, in a controversy between the state and the upland proprietor, favors the view that title to artificially caused accretion vests in the state as the owner of the tidelands, we first review the evidence of the cause and nature of the accretion to Parcel B in support of the trial court’s findings.
The determination of the factual issues by the trial court was, in the main, dependent upon extensive evidence admitted through the testimony of two experts for the People, Dr. Kenneth 0. Emery and James W. Dunham; the report of a court-appointed expert, Dr. U. S. Grant; various lay witnesses familiar with Santa Monica beaches; and maps, photographs, charts, drawings, historical data, official reports and diagrams. Appellant predicates his argument of insufficiency of the evidence upon what he asserts to be opposing inferences and evidence, and inconsistencies in the expert testimony. It is, of course, for the trier of fact to determine the weight to be given to the opinion of an expert witness
(People
v.
Loop,
Where findings are attacked on the ground of insufficiency of the evidence, the power of the reviewing court begins and ends with a determination of whether there exists in the record substantial evidence, contradicted or not, which will support the same
(Primm
v.
Primm,
Following these rules and viewing the evidence in the light most favorable to the judgment we conclude that there is substantial evidence to support the trial court’s finding (XII) that from 1875 to 1912 the shoreline in the location of Parcel B was generally in a state of equilibrium, subject to seasonal fluctuation; and that this finding is not inconsistent with any other.
As to the status of the shoreline prior to 1912, Dr. Emery described a beach subject to seasonal variations based upon maps and charts; asked if he would describe it as a “static” beach in equilibrium, he answered: “It looks like it for that period. ’ ’ Relative to the sand budget in that area he explained that if there were no artificial structures natural forces would prevent any accumulation of accretion, for under normal conditions as much sand as goes into the Santa Monica Bay that would cause natural accretion would leak out the south end of the bay through Redondo Canyon and “ (t)hat would mean there would be no net increase of the beach per unit of time.” He concluded: “In reality, if there had been no structures (speaking of construction after 1912) we would have expected all of the sands which entered the Bay would have escaped through Redondo Canyon, and there wouldn’t have been any widening at all.” Mr. Dunham’s opinion was that the area, under natural conditions, was “neither accreting nor prograding, nor receding prior to the construction of the *829 Santa Monica Pier” in 1912, for “a natural balance of shore processes had manifested themselves in this area prior ’ ’ thereto, in that the littoral material entering Santa Monica Bay would not accumulate to widen the beaches, but would flow out naturally into Redondo Canyon. He concluded that “prior to 1912 this segment of shore was considered generally stable.' ’
Dr. Grant’s report, contrary to that urged by appellant, does not state that there was a natural progradation of the shoreline after 1895. Dr. Grant discussed “prehistoric beach widening” and said that it was not possible to determine with certainty whether it would have continued to move the mean high tide line seaward. He reported that it might have reached an average static condition, for it seems unlikely the early rate of natural accretion would have continued undiminished. In speaking of beaches generally he concluded that the ‘1 early rate of natural beach progradation” would unlikely continue indefinitely, on the premise that they prograde to a limit “at which equilibrium is reached between constructive and destructive processes.” Dr. Grant not only did not state that the beach before 1912 was not static; but an inference that the shoreline was in equilibrium runs through his entire report • —for instance, he acknowledged that the beach behind the breakwater had prograded from an approximate equilibrium position (Ex. P, p. 8); and in another part of his report stated, in describing a further condition, “ (I)f the equilibrium of the interacting shore processes had not been upset. ’ ’ (P. 21.) Any inference that the beach was naturally pro-grading between 1875 and 1912, from Dr. Grant’s assumption that the accretion between 1921 and 1933 was “natural,” is wholly unreasonable for the latter is based on a self-admitted highly questionable and arbitrary premise. Dr. Grant “assumed” that the accretion between 1921 and 1933 was “natural” solely because he was unable to evaluate with any certainty the effects of the artificial structures after 1912, which “assumption” he concedes in his report “is vulnerable to challenge” and “arbitrary.” The trial court was entirely justified in failing to give as much weight to this evidence as to the definite opinions of the other two experts who directly asserted that a state of equilibrium existed subject to seasonal fluctuations, giving their reasons therefor.
Appellant relies upon the 1876 line of mean high tide to show an early progradation. This line was surveyed by the United States Coast and Geodetic Survey, and maps thereof were received in evidence; but it acknowledged a possible error of *830 30 feet in its survey. In addition, Mr. Dunham testified that the line was inaccurately plotted on the composite map (Ex. 57) showing the line 100 feet landward of the promenade and that properly plotted it would correspond with the seaward side of the promenade or the line of 1904, falling within the seasonal movement of the shoreline; and that a progradation from that point would show very little change in the beach. Dr. Emery and Mr. Dunham both testified that a shoreline trend could not be projected on the basis of some of the early shore positions.
In connection with the finding that the shoreline in question was in a state of equilibrium between 1875 and 1912, appellant raised the additional point that it is inconsistent with finding XIV—that due to lack of precise data the exact amount of artificial accretion prior to 1921 cannot be determined. He argues that “since the court found that lack of precise data prevented a determination of the effect of artificial forces prior to 1921, lack of precise data also prevented a finding of equilibrium.” Liberally construing the findings in favor of the judgment
(Estate of Moore,
The trial court found that since 1912, two piers and their effects caused artificial accretions to form along the shore at the location of Parcel B, but the amount thereof prior to 1921 cannot be determined due to lack of precise data. It further found, and the evidence shows, that the Santa Monica JPier was constructed 2,100 feet southeast of Parcel B in 1909, that in 1912 Newcomb Pier was constructed adjacent to the southeast side of the Santa Monica Pier; that pilings and debris from construction and abandoned or destroyed piers remained in the water in the vicinity of the pier and that the natural equilibrium prior to 1912 was upset subsequent thereto by certain specified structures.
The testimony of Dr. Emery and Mr. Dunham discloses that the two piers caused accretion which resulted in a bulge in the shoreline at the location of the piers, and that the combined effects of this and the piers themselves, caused accretion to form at Parcel B beginning sometime between 1912 and 1921 (as to exactly when progradation resulting from the piers started during that period neither could say, but both asserted that it was not later than 1921.) They testified that lack of precise data for 1912 to 1921 prevented them from determin *831 ing when and to what extent Parcel B was affected by artificial accretion during that period. Furthermore, both evidence and findings are silent concerning any occurrence between 1912 and 1921 of any natural progradation with the exception of that caused by seasonal fluctuation; and both Dr. Emery and Mr. Dunham, and the court attributed whatever accretion occurred to Parcel B between 1912 and 1921 to the effects of the piers.
At this point it should be noted that the trial court also found (XI), and the evidence shows, that prior to the introduction of artificial structures such as groins, piers, and breakwaters, the beaches in Santa Monica Bay were generally in a state of equilibrium and were, and are, subject to short term changes due to seasonal fluctuations and occasional storms; that since 1875 there have been numerous structures which have interfered with the littoral drift and currents of the ocean causing portions of the shoreline to accrete, that the beach at Parcel B was generally in a state of equilibrium until 1912, subject to seasonal variations and storms, and the portion of the mean high tide line at Parcel B was also affected between 1875 and 1912 by various artificial structures, the exact extent of which effects cannot be determined due to lack of precise data (XII).
The influence of the “various artificial structures prior to 1912” (Ocean Park and Crystal Pier a distance from Parcel B, groin, railroad embankment and highway fill) is, according to Dr. Emery, “possible” or “conceivable” but the effect “is not measurable because we have no information” and “the data are so poor.” They have no measurable effect, but we also “have no measurements, to speak of, for most of these effects.” Mr. Dunham although noting that various deposits of material from highway construction and short groins did have an effect, testified it was minor in nature, and prior to 1912 the shoreline at Parcel B was “considered” generally stable because a natural balance of shore processes had manifested itself prior to the advent of works of man, and although man’s early efforts to control the natural processes led to some change, it was “rather small” in comparison with over-all forces of nature and the amount of sand flowing past the area until 1912; and between 1912 and 1921 the effects of artificial structures became progressively predominate until at the end of the period all further advances were definitely caused by them.
Even Dr. Grant in his report conceded that the history of *832 construction and slow destruction along the shore is i.oo complex and vaguely recorded to attempt a thoroughgoing consideration of the effects.
It is the ultimate facts, those to which the legal consequences attach, and not the probative or evidentiary facts which establish them, that must be found by the trial court. A finding of ultimate fact includes a finding of all probative facts necessary to sustain it; and express findings of evidentiary facts are unnecessary. (Stanbury, California Trial and Appellate Practice, vol. I, p. 792, § 717;
Fitzpatrick
v.
Underwood,
The record shows, through the testimony of Dr. *833 Emery, that after the Santa Monica Pier was built in 1912 a shoreline bulge developed beneath it and a fillet of sand gradually grew forward to the shore of Parcel B reaching there at some date shortly before 1921; and that after that the accretions were definitely and “100%” controlled by manmade structures. A similar conclusion was reached by Mr. Dunham—that sometime around 1920 and 1921 (the exact time he could not ascertain) a groin formed under the pier and gradually extended up to Parcel B, and “the further progradation of the beach was entirely artificial after that time (1921).” The testimony of the lay witness Leslie S. Storrs corroborated the opinions of these two experts. The evidence received through these three witnesses in itself supports the ultimate finding.
Although not specific in their designation, Dr. Grant concedes the effect of certain artificial structures (“periodic constructions of groins, piers, and other works of man”) after 1933. Appellant places great reliance on his report, but Dr. Grant nowhere therein definitely asserts that the accretion between 1921 and 1933 was “natural.” What conclusion he ultimately gives, he reaches through a process of reasoning based upon an “assumption” he is forced to make because of lack of data—“the assumption that the accretion of the beach at the Hecker property between 1921 and 1933 was entirely natural”—which he clearly admits “is vulnerable to challenge”; and further asserts: “as there is no way to prove that the early accretion was or was not natural, or how much was natural and how much was artificial, the assumption of a natural accretion between 1921 and 1933 forms a convenient, if questionable basis for projections of the trend into the future.” A contrary assumption would have been as reasonable. Of interest at this point is Dr. Grant’s further statement that “an early rating of natural beach progradation is unlikely to continue indefinitely in the future,” because the beach would prograde “to a limit at which equilibrium is reached between constructive and destructive processes”; and the admission that his further “assumption that the rate of ‘natural’ accretion in the Hecker property between 1921 and 1933 would have continued without acceleration to 1955 if the breakwater had not been constructed is gratuitous,” and “somewhat arbitrary.” He concluded that natural accretion would have moved the high tide line no more than 142 feet beyond its 1921 position; but that opinion is based entirely upon the questionable assumptions *834 he chose to make because the factors resulting in the 1921 and 1933 growth to Parcel B were “obscure, illusive and indeterminate to a large degree. ’ ’ This opinion the trial court rejected in favor of the definite assertions of the two other experts (both eminently qualified in the field of shoreline engineering and geology and long experienced in problems involving shoreline processes in Santa Monica Bay, and who made a thorough study and analysis of numerous reports, surveys, photographs, charts, diagrams, maps, and historical data, took new measurements and made new observations) that the accretion was artificially produced; and the lack of any decisive evidence that there was any natural pro-gradation of the shoreline from 1875.
As to the effect of the construction of the breakwater in 1934, Dr. Emery attributed the largest effect to it because it was a more effective sand trap, and after it was built the bulge progressed greatly and sand accumulated on the upstream side of the bulge and built out the beach in front of Parcel B; and the breakwater so altered the trend of the beach it had to be considered the cause of all subsequent accretions. This, too, is borne out by the Corps of Engineers Report (Ex. 83) that the breakwater caused the shore to advance and, between 1934 and 1946, amounted to 314 feet opposite its up-coast end. Both experts described the effect of the artificial structures and the method by which they cause accretion—whereby the sand it either trapped by the structure or deposited as the result of the decreased velocity of the current caused by it.
Any contention that accretion to Parcel B after 1921 should be regarded as “natural” finds support neither in the record before us, which establishes that it was caused by artificial structures such as groins, piers, and breakwaters, nor in the law of this state. The oceanografic and geologic process whereby accretions were formed in
Carpenter
v.
City of Santa Monica,
Relative to the issue of title, appellant asserts that Parcel B consists of alluvion in the nature of submerged lands; and that although the state acquired ownership of *835 submerged lands along its coasts from the federal government under the Submerged Lands Act of 1953, inasmuch as the federal law gives accretion to the upland owner, Parcel B did not pass to the State of California under that grant. We find no merit to this position for Parcel B, consisting of artificial accretion, constitutes tideland and, as tideland, title thereto vested in the state upon its admission to the Union in 1850.
It is conceded by appellant that tidelands are those lands covered and uncovered by the daily flux and reflux of the tides; submerged lands those lying oeeanside of the tidelands (A.C.B., p. 18). Although Parcel B was once inundated by the ebb and flow of the tide, it now consists entirely of artificial accretion resulting from the effects and influence of manmade structures. It does not attach as alluvion to the ownership of the upland, but retains its character as public land in the nature of tideland.
(City of Los Angeles
v.
Anderson,
Appellant submits that the state must rely for its title upon a federal grant under the Submerged Lands Act, which is controlled by federal decisions compelling the conclusion that the accretion belongs to the owner of the upland. This is not the fact for the state has owned its tidelands since its admission to the Union
(Borax Consolidated
v.
City of Los Angeles,
In 1953, the Submerged Lands Act was passed which provided in subdivision (a) “It is determined and declared to be in the public interest that (1) title to and ownership of the lands beneath navigable waters within the boundaries of the respective states, and the natural resources within such lands and waters, and (2) the right and power to manage, administer, lease, develop, and use the said lands and natural resources all in accordance with applicable state law be, and they are, subject to the provisions hereof, recognized, confirmed, established and vested in and assigned to the respective states. . . .” Under subdivision (b), the United States “releases and relinquishes” to the states “all right, title and interest of the United States, if any it has, in and to all said lands. ...” (43 U.S.C. § 1311, chap. 29.) “Lands beneath navigable waters” are defined in the act and include “ (2) all lands permanently or periodically covered by tidal waters up to but not above the line of mean high tide and seaward to a line three geographical miles distant from the coastline of each such state. ...” (§ 1301(a).)
It is obvious from the language used in the act that Congress intended thereby only to declare that title to tidelands already vested in the state be “recognized” and “confirmed.” Thus, the court in
Superior Oil Co.
v.
Fontenot,
Urging the applicability of federal law, appellant cites numerous federal cases supporting the rule giving accretion to the upland owner. Although the state’s title to the tideland was not derived from, or dependent on, the Submerged Lands Act, it is in point to mention that title according to the terms of the act is to be determined in accord with the state, not federal law; and under California law, as between the state and upland owner, artificially caused accretion belongs to the owner of the tidelands and not to the littoral owner. The act determined and declared title to, and ownership of, the lands and natural resources thereto and the right to develop and use the same “all in accordance with applicable state law” (§1311, subdivision (a) 1, 2) ; and recognized, confirmed, established, vested and assigned title and ownership thereof to the respective states or persons, who on June 5, 1950, were “entitled thereto under the law of the respective states in which the land is located.” This provision follows the general rule applying local law to questions of title between the state and riparian owners
(Archer
v.
Greenville Sand & Gravel Co.,
Relying upon the federal and common-law rule that accretion accrues to the upland owner even though assisted by artificial means, appellant submits that under section 22.2, Civil Code, it shall be the rule of decision in California courts. The law of this state does not support such a position. The within controversy is between the littoral owner and the state, and as such the rule urged by appellant does not apply. In this kind of controversy it is well established in California “that accretions formed gradually and imperceptibly, but caused entirely by artificial means—that is, by the works of man, such as wharves, groins, piers, etc., and by the dumping of material into the ocean—belong to the state or its grantees and do not belong to the upland owner”
(Carpenter
v.
City of Santa Monica,
The prevailing rule in California emerged from a series of eases involving controversies between the state or its successors in interest and the upland owner, beginning with
Dana
v.
Jackson Street Wharf Co.,
Appellant seeks to explain away these decisions by recognizing them only as “deviating decisions” with “peculiar circumstances” that distinguish them from the instant ease. The “peculiar circumstances” constitute the very factor which created the prevailing rule in California, departing from the common law and which has become decisive in a controversy between the state and upland owner. Inasmuch as we have rejected appellant’s claim that decisions of federal courts are here controlling and, in any event, the common-law rule of alluvion prevails in the case at bar, we deem it unnecessary to further consider the applicability of these eases, or other issues arising out of constitutional provisions and public policy, which have long before .been considered by our courts in the cases hereinbefore cited.
*840
In conclusion appellant urges that as littoral owner he possesses a special and vested right of access to the sea— a frontage right separate from the land, which is compensable. The record before us establishes, and the trial court has found, that Parcel B, consisting of tideland artificially created and owned by the state, stands between land owned by appellant and the sea, separating him from contact with the latter. Whatever littoral rights he may have had were extinguished when the shoreline was artifically built up through the effect of groins, piers, and breakwaters constructed in relation to, and in furtherance of, the public trust with which the tideland was impressed
(City of Long Beach
v.
Marshall,
Rejecting a similar complaint that appellant was cut off from contact with the sea, the court in
Los Angeles Athletic Club
v.
City of Santa Monica,
It is well settled that although the sovereignty of the state over tidelands does not deprive the littoral owner of his right of access from his own land to the ocean as against a stranger, “this right is not given to the owner of land bordering upon the ocean shore as against the state or its grantee in the exercise of a lawful use or purpose.”
(Boone
v.
Kingsbury,
Appellant argues that the state seeks to condemn the land for a state park, not consistent with its rights and duties under its public trust to promote navigation, commerce and fishing. Tidelands may be devoted to any use not inconsistent with the public trust
(City of Long Beach
v.
Marshall,
The proposed improvement of the beach by the state rightfully cuts off access from appellant’s land to the ocean and as he had no littoral right by virtue of his ownership of the upland nor any other right to the tidelands, it follows that he cannot be heard to complain of any disposition made by the state of such tideland. In the case of
Henry Dalton & Sons Co.
v.
Oakland,
We have held that appellant, the littoral owner ' of the upland, has no right of access to the ocean over the intervening tideland constituting Parcel B as against the State of California. If any access exists it is against a stranger which would be enforceable only if the latter trespassed or threatened to do so. Since it is well settled that valuation in an eminent domain proceeding is based solely upon market value
(People
v.
Vinson,
For the foregoing reasons the judgment is affirmed.
Wood, P. J., and Fourt, J., concurred.
A petition for a rehearing was denied May 9, 1960, and appellant’s petition for a hearing by the Supreme Court was denied June 8, 1960.
