Plaintiffs are six employees and the widow and a child of a deceased employee of Consolidated Western Steel which was hired as an independent contractor to erect certain oil storage tanks for Pacific Gas and Electric Company. The injuries occurred as a result of the manner in which Consolidated Western Steel used its equipment during the course of construction. Plaintiffs contend that the defendants Pacific Gas and Electric Company and Bechtel Corporation are liable to them for this claimed negligence on the part of Consolidated Western Steel. The case was tried before a court and jury. At the end of the plaintiffs’ case the court granted motions for nonsuit upon the ground that plaintiffs *404 had failed to prove the violation of any duty owed by the defendants.
The sole question upon this appeal is whether or not either of the defendants owed a duty to any of these employees of Consolidated.
The Contracts and the Accident
The Pacific Gas and Electric Company entered into a contract with Bechtel Corporation to design and construct a steam electric power plant near Morro Bay. It was contemplated by the parties that Bechtel might have some of the work done by subcontractors and that the Pacific Gas and Electric Company might let out some of the work directly to contractors.
The Pacific Gas and Electric Company entered into a contract with Consolidated Western Steel Division wherein it was agreed that ‘1 Contractor will at its own risk and expense perform the work hereinafter described and, except as herein otherwise provided, will furnish all labor, equipment and materials required therefor: To furnish, fabricate and erect two (2) fuel oil storage tanks for the Company’s Morro Bay steam plant. . . . All work shall be performed in accordance with Specification 4360 A, Drawing 410511-7, and Contractor’s proposal of December 18, 1953.”
It was further agreed in part as follows:
“Contractor [Consolidated Western Steel Division] is an independent contractor, and all persons employed by Contractor in connection herewith will be employees of Contractor, and not employees of Company [P.G. & E.]' or Constructor [Bechtel Corp.] in any respect.
“Bechtel Corporation as Engineer and Constructor for Company will act in behalf of Company and all questions or claims by Contractor shall be handled through the Constructor.
“All work shall be subject to general supervision and inspection by Constructor, which may exercise such control of the work as is required to safeguard the interests of the Company. All inspections as to quality of materials furnished and work performed, will be made by the Constructor’s representative, who shall have authority to reject unsatisfactory work or materials. Any subcontractor or any person employed by the Contractor who is deemed by the Constructor to be incompetent shall be removed from the job, at the request of the Constructor. ’ ’
*405 “11. Safety Precautions:
“ (a) The Contractor shall plan and conduct his work so as to safeguard adequately all persons from injury, and all property from damage.
“(b) In planning and maintaining safe working conditions and safety facilities, the Contractor shall give due consideration to the following:
“ (1) The Constructor will be required to maintain in efficient order and operate without interruption such portions of the plant and equipment as must be placed in operation prior to completion of the entire station.
“ (2) Construction work by others may be carried on in conjunction with the work of this Contractor and frequently may occupy the same working area.
“(c) To enforce the intent of these specifications, the Constructor may require the Contractor to install additional safeguards and observe such special safety precautions as appear to be necessary. Special instructions given by the Constructor shall not relieve Contractor of its responsibility to maintain safe and efficient working conditions.”
“12. Scaffolding:
“The contractor shall not use any scaffolding or other temporary elevated structures for the support of workmen or materials that have been furnished or erected by the Constructor or by the other Contractors unless authorized by the Constructor so to do. The Contractor shall pass upon the safety of all such structures before using and shall assume all risk and responsibility in using same whether the structures are provided by the Constructor or others.”
‘114. Insurance and Indemnity :
“ (a) Contractor shall indemnify Company and Constructor against any and all loss, damage and liability for injury or harm to person or property resulting from, arising out of or in any way connected with the performance hereof, excepting only such injury or harm as may be caused solely by the fault or negligence of either Company or Constructor, or both. ’1
Plaintiffs, employees of Consolidated, were engaged in the construction of a fuel oil storage tank at Morro Bay, when they were injured. The tank was one of two being built by Consolidated for Pacific Gas and Electric under the above mentioned contracts. The finished tanks were to be 195 feet in diameter and 32 feet high. The accident occurred on August 25,1954, at approximately 11 a.m. There was little or no *406 wind and the weather was good. (The details relating to the construction are technical and difficult to describe. The following is generally what occurred.) Work on the tanks had begun in June of 1954. By August 25th, one tank had been completed, except for the roof, and Consolidated was working on the top ring of the second tank.
The top ring consisted of 18 plates, each weighing in excess of one ton and approximately 32 feet long and 8 feet high. These plates were in place and had been welded along the vertical seams (with the exception of one joint). In preparation for the welding of the horizontal seam, the ring had to be aligned. The fitting and alignment was to be accomplished with a “bull” (a U-shaped pneumatic device weighing approximately one ton) which was guided around the top of the ring and hammered the ring into place. In connection with this operation a workman would precede the “bull” by 10 or 15 feet and knock out the wedges and spacers which held the plate in position. Working immediately behind the “bull,” a welder would tack or spot weld the horizontal seams together until such time as they could be welded by the automatic welder.
All the plaintiffs were then at work on the ring though none had anything to do with the operation of the “bull.” At the time of the accident, six of the plaintiffs were working on the outside surface of the tank and plaintiff Benninger was on a catwalk inside of the tank. The operation of the “bull” was sufficient to shake the ring and cause it to vibrate. The “bull” had been in operation about three hours and had covered approximately one-third of the inside circumference when just ahead of the “bull,” several plates tipped inward and began to peel off. The falling plates hit the staging on the inside of the tank and caused most of the ring to collapse and fall into the bottom of the tank. This accident occasioned the injuries upon which these actions were brought.
There is evidence tending to indicate that the accident could have been averted with the use of proper precautions. Expert testimony was introduced to show that in the construction of tanks of unusual size, problems of instability are acute and that necessary stabilization can be achieved through the use of additional support (guy wires).
Defendants Violated No Duty Owed Plaintiffs
1. The contracts created no duty.
Plaintiffs’ first theory is that the authority which Con *407 solidated gave to Bechtel to “require” Consolidated “to install additional safeguards and observe such special safety precautions as appear to be necessary” (§ 11(c) of the contract) imposed a duty upon Bechtel to exercise that authority by so instructing Consolidated whenever safeguards and safety precautions additional to those being observed by Consolidated seemed necessary—a duty to be exercised by Bechtel for the benefit of all persons who might come near the site of Consolidated’s operations, including Consolidated’s own employees.
Additionally to that theory, plaintiffs contend that defendants knew or should have known that the method Consolidated was using to erect the tanks was unsafe, and therefore defendants had a duty to require Consolidated to take the necessary precautions.
Plaintiffs’ first theory would require a strained construction of the authority thus granted. It ignores the fact that by the same contract Consolidated was the primary obligor (§11 (a)). Bechtel was to exercise general supervision and inspection to “safeguard the interests of the Company.” The very authority under discussion was given “to enforce the intent of these specifications,” and special instructions given by Bechtel were not to relieve Consolidated of its “responsibility to maintain safe and efficient working conditions” (§ 11(c)).
These factors plus the express declaration that Consolidated is an “independent contractor” and that all persons employed by it are its employees and not employees of Pacific Gas and Electric or of Bechtel and the promise of Consolidated to indemnify Pacific Gas and Electric and Bechtel from liability for injury except such injury as may be caused solely by the fault or negligence of Pacific Gas and Electric or Bechtel, negative any such strained construction as plaintiffs would have us put upon this contract.
The Pacific Gas and Electric did not reserve unto itself or Bechtel the right of control as to the manner or details as to how the component parts of either of these two tanks were to be put together, nor did either of them direct or interfere in any manner with the actual physical construction of the tanks. Consolidated, its officers and employees were given complete control over the site where the tanks were to be erected. They by the work procedures which they adopted and used created the only hazards which the plaintiffs encountered.
Generally the rule is that an owner or a general contractor is not answerable for the negligence of an independent eon-
*408
tractor. That rule is succinctly expressed in
Gardner
v.
Stonestown Corp.,
“An independent contractor is one who renders service in the course of an independent employment or occupation, following his employer’s desires only as to the results of the work, and not as to the means whereby it is to be accomplished. . . . The general supervisory right to control the work so as to insure its satisfactory completion in accordance with the terms of contract does not make the hirer of the independent contractor liable for the latter’s negligent acts in performing the details of the work.
(Green
v.
Soule,
There are exceptions to the general rule. These are set forth in the McDonald case:
“Various factual situations in which an owner may be liable for injuries to the employee of the independent contractor should be distinguished: (1) This is not a case where the employee of the independent contractor was injured by some condition of the owner’s premises over which the owner remained in control, and where the owner’s duties to the employee were those owing to a business invitee. ... (2) Nor is this a case where the owner furnished the equipment or was obligated by contract to do so, and the equipment proved to be defective, causing injury to the employee of the independent contractor. ... (3) Finally, this is not a ease where the owner actively interfered with or arbitrarily assumed to direct the employees of the independent contractor as to the manner and method of performing the work. . . . Likewise distinguishable is Snow v. Marian Realty Co.,212 Cal. 622 [299 P. 720 ], where the owner’s liability for damages stemmed not from responsibility for the negligent acts of the independent *409 contractors but from the allowance of work on its property constituting a nuisance.” (Pp. 790 and 791 of 44 Cal.2d.)
Obviously the facts in our ease do not bring it within any of the above exceptions to the general rule. Additionally to the exceptions stated in the McDonald case, there is one more exception, which also is not applicable to our case. That is that a public utility is, as primary obligor, under a nondelegable duty imposed by or pursuant to law and hence is liable for injuries due to negligence of an independent contractor. (See
Snyder
v.
Southern Calif. Edison Co.,
The decision of the McDonald case, supra, is determinative of this case. There the contract between the Shell Oil Company and an independent contractor to recover certain easing from, and to abandon, an oil well on Shell property, is surprisingly like the contracts in our case as to the provisions which plaintiffs contend cast a duty on Pacific Gas and Electric and Bechtel to protect Consolidated’s employees, and the arguments made by the plaintiff in that case are significantly like those here. There the control of the work of the contractor was in fact greater than was that of defendants in our case. “Plaintiff argues that Shell retained control over the methods and manner of performance of the work by Owens’ crew because defendant Neuhaus, its general production foreman, testified that he was in charge of the abandonment of the oil well in question and had the equipment under his observation; that Shell always had a working production foreman on the job, though he never gave any ‘orders or directions to any man on the job’ but dealt directly with Owens’ foreman; that the Shell foreman and Owens received the same work sheets; that Shell had authority under its contract to stop Owens if it considered the work unsatisfactory in any respect; that after the accident Shell conducted an investigation and its committee recommended the use of a catline clamp to replace riding the rope on the cathead, which safety device was thereafter installed by Owens’ employees. . . . Finally, plaintiff cites his own testimony as to his personal observation of a visit made to Owens’ well-pulling rig by a Shell foreman; that the latter criticized the way in which the casing had been piled, stating to Owens’ driller, ‘You know better than that, how to stack that easing’; that the Shell foreman then procured a truck and moved the casing.” (Pp. 789-790.)
In discussing those contentions the court said (p. 790) : “However, the owner may retain a broad general power of
*410
supervision and control as to the results of the work so as to insure satisfactory performance of the independent contract— including the right to inspect
(Callan
v.
Bull,
Applicable to the rights retained by defendants is the following language from that case (p. 790) : “All of these rights retained by Shell in the exercise of its general supervisory control accord with its interest in the ultimate result of the work without undertaking to direct the ‘means whereby it is to be accomplished.’
(S. A. Gerrard Co.
v.
Industrial Acc. Com., supra,
Plaintiffs contend that the facts of the McDonald case are distinguishable from those in our case because the contracts here contain a clause not in the one in that case, namely, the provision of section 11 (c), above quoted, to the effect that the constructor might require the contractor to ‘ ‘ install additional safeguards and observe such special safety precautions as appear to be necessary.” This is a difference without a distinction. This right of the constructor in nowise conferred any obligation upon the constructor to exercise such right in favor of employees of the contractor. Moreover, in the McDonald case there was a specific instance where the Shell actually exercised authority over an employee of the contractor in the manner in which the casings were piled, and yet the court held that such fact did not make the Shell liable for injuries to the independent contractor’s employee not caused by the action of the Shell.
The rule of the McDonald case was followed in the recent case of
Williams
v.
Fairhaven Cemetery Assn.,
In
Hard
v.
Hollywood Turf Club
(1952),
The reasoning behind the rule that the general contractor (and the same reasoning applies to the owner) is not liable to the employees of an independent contractor for the latter’s negligence, is the same as that set forth in the Hard case,
supra,
*412
Raich
v.
Aldon Const. Co.,
Sullivan
v.
Shell Oil Co.
(1956),
Dow
v.
Holly Manufacturing Co.,
2. Knowledge of danger created no duty.
The evidence shows that representatives and inspectors of both Pacific Gas and Electric and Bechtel observed the work practically daily. There was testimony that the necessary stability of the tank during erection could have been achieved easily by supporting each plate ahead of the bull with a guy wire and using strongbacks on the horizontal seam as well as on the vertical seam. From the experience of some, at least, of *413 the Bechtel and Pacific Gas and Electric representatives, it could he inferred that both companies should have known that the manner of erection of the tanks was not safe. However, that fact does not make the defendants liable. No duty toward the independent contractor’s employees arises thereby.
In
Richards
v.
Stanley
(1954),
Plaintiffs contend that the fact that a jury could have found that defendants should have known of the negligent method of construction distinguishes this case from the McDonald case,
Hard
v.
Hollywood Turf Club, supra,
Although the question of the owner’s knowledge or imputed knowledge is not directly discussed in
McDonald
v.
Shell Oil Co., supra,
*414
Plaintiffs suggest that Restatement of Torts, sections 414 and 416, are applicable to the ease here on appeal. In
Hard
v.
Hollywood Turf Club, supra,
The judgments are affirmed.
Tobriner, J. and Dooling, J., * concurred.
A petition for a rehearing was denied August 25, 1959, and appellants’ petition for a hearing by the Supreme Court was denied September 22, 1959.
Notes
Assigned by Chairman of Judicial Council.
