This litigation arises out of a multimillion dollar track improvement of the Port Jefferson branch of the Long Island Railroad by the addition of a second railroad track between Amott and Huntington. Construction on the contract, which defendant, Long Island Rail Road Company (LIRR), awarded to plaintiff, Clark-Fitzpatrick, Inc., as low bidder, began in September 1983. As alleged by plaintiff, the contract contained detailed engineering specifications that instructed plaintiff on how to proceed with construction. Plaintiff contends that, after construction began, it discovered that defendant was unprepared to proceed with the project — specifically, that the engineering design was flawed, thus requiring substantial design changes during the course of construction; that defendant had failed to acquire the rights to certain necessary properties bordering the construction sites; and that defendant had failed to locate and move various utility lines throughout the project that interfered with construction. Notwithstanding these difficulties, plaintiff proceeded with construction, which was completed in July 1986 — almost one year after the scheduled completion date.
The various problems with project design and construction caused plaintiff, in November of 1984, to commence this action against the railroad and the railroad’s parent, the Metrópoli
I.
We find without merit plaintiffs contention that defendant — a public benefit corporation heavily supported by tax dollars and performing an essential government function in providing commuter transportation — may be subject to punitive damages.
We have held that the State and its political subdivisions are not subject to punitive damages (Sharapata v Town of Islip,
The LIRE, of course, is not itself the State or one of its political subdivisions; rather, it is, pursuant to Public Authorities Law § 1266 (5), a public benefit subsidiary corporation of the MTA. Although "public benefit corporations * * * created
Applying this standard to the instant appeal, we hold, in light of the essential public function served by defendant in providing commuter transportation and the public source of much of its funding, that defendant should receive the same immunity from punitive damages as do the State and its political subdivisions. This conclusion proceeds inexorably from an examination of the enabling legislation creating defendant’s parent organization, the MTA, and the purposes articulated therein of furthering the development of commuter services essential to the economic health of the State (Public Authorities Law § 1263, L 1965, ch 324). Those purposes are specified by statute as being "in all respects for the benefit of the people of the state of New York”, and the Legislature further commanded that "the authority shall be regarded as performing an essential governmental function” (Public Authorities Law § 1264 [2]).
As a subsidiary of the MTA, defendant obviously plays a critical role in implementing this legislative goal and furthering this governmental purpose. Indeed, the Legislature clearly recognized this when, in explaining the urgent need for a transportation áuthority, stated that "[tjhrough [the MTA] the state [can] deal flexibly and efficiently with the differing financial, managerial and operational problems involved in insuring the continuation of such essential commuter services as those presently being provided by the Long Island Rail Road and the New York, New Haven and Hartford Railroad” (L 1965, ch 324, § 1 [7] [emphasis added]). Furthermore, the office of the State Comptroller, in a report analyzing selected aspects of defendant’s five-year capital plan, found that it "provides a vital transportation link between the City of New York and the suburban counties of Nassau and Suffolk” and that "[o]n an average weekday, more than 700 trains carry in excess of 287,000 passengers”, making defendant the busiest commuter railroad in the Nation (Off of State Comptroller,
Moreover, the record shows that defendant receives much of its funding from taxpayer revenues and that, at the time this action was commenced, 49% of defendant’s total expenses were financed from outside subsidies, most of which were derived from public sources. The construction project at issue was also, in large measure, publicly financed. Thus, as was the case in Sharapata, the imposition of punitive damages against defendant would ultimately punish only the innocent taxpayers of New York State (Sharapata v Town of Islip,
II.
Turning to plaintiff's cause of action sounding in quasi contract, we conclude that it was properly dismissed. The existence of a valid and enforceable written contract governing a particular subject matter ordinarily precludes recovery in quasi contract for events arising out of the same subject matter (Blanchard v Blanchard,
Of course, a party may perform a contract under protest, and then sue for damages resulting from the second party’s breach (Borough Constr. Co. v City of New York,
Here, it is undisputed that the relationship between the parties was defined by a written contract, fully detailing all applicable terms and conditions, and specifically providing for project design changes with adjustments in compensation contemplated in light of those changes. Notwithstanding plaintiffs claim that defendant breached the contract, plaintiff chose not to rescind the agreement, but instead to complete performance of the contract and sue to recover damages, which of course was plaintiffs right. Having chosen this course, however, plaintiff is now limited to recovery of damages on the contract, and may not seek recovery based on an alleged quasi contract.
Finally, we conclude that the two causes of action sounding in negligence were also properly dismissed. It is a well-established principle that a simple breach of contract is not to be considered a tort unless a legal duty independent of the contract itself has been violated (Meyers v Waverly Fabrics,
Based on the foregoing, the order of the Appellate Division should be affirmed, with costs, and the certified question answered in the affirmative.
Chief Judge Wachtler and Judges Simons, Kaye, Titone, Hancock, Jr., and Bellacosa concur.
Order affirmed, etc.
Notes
. Although the Metropolitan Transportation Authority is named as a defendant, the amended complaint states no causes of action against it, and it is not involved in this appeal.
. Plaintiffs cause of action sounding in fraud was not challenged below and is not an issue on this appeal.
