OPINION
Appellant, Mary Powell as Administratrix of the Estate of Vincent A. Powell, appeals from an order of the Commonwealth Court sustaining the preliminary objections of Appellee, Pennsylvania Department of Transportation (PENNDOT) *488 and dismissing Powell’s amended complaint with regard to PENNDOT.
The sole issue presented for our review is whеther the criminally negligent conduct of co-defendant David Drumheller in driving under the influence of alcohol is a superseding cause relieving PENNDOT of liability for negligently designing a Commonwealth highway. We reverse.
This civil action arises from a two vehicle accident which occurred in London Britain Township on the evening of April 27, 1988. The facts as averred in Powell’s amended complaint are as follows. At approximately 7:00 p.m., Appellant’s decedent, Vincent Powell, was driving westward on London Tract Road. Reproduced Record at 26. Co-defendant David Drumheller was driving his 1986 Nissan truck in an easterly direction on London Tract Road. Id. Suddenly, Drumheller steered his vehicle into the oncoming lane in an attempt to pass another automobile and struck Vincent Powell’s vehicle. Id. Mr. Powell suffered extensive fractures and internal injuries and died one hour after the accident. Id. at 27. At the time of the accident, Drumheller was driving with a suspended license. Id. at 25. On February 2,1989, Drumheller plead guilty tо vehicular homicide and driving under the influence of alcohol in connection with the accident. Id. at 27.
On March 1, 1990, Powell brought this wrongful death and survival action for the vehicular death of her husband, Vincent E. Powell. The action was initiated by complaint filed in the Court of Common Pleas of Chester County and named Drumheller, PENNDOT and several other parties as defendants. PENNDOT filed preliminary objections to Powell’s complaint. On April 26, 1990, Powell filed an amended complaint alleging that Drumheller, PENNDOT and the other defendants were jointly and severally liable for her husband’s death. Specifically, Powell alleged that PENNDOT had caused the death of her husband by negligently designing Londоn Tract Road. Powell alleged in her amended complaint that the road where the crash occurred had no centerline designating the lanes of travel, no road markings or signs restricting passing, and no *489 shoulders or lateral clearance areas to provide room for emergency maneuvers.
PENNDOT filed prеliminary objections to Powell’s amended complaint in the nature of a demurrer. PENNDOT asserted that the criminal and negligent acts of a third party, David Drumheller, prohibited the imposition of liability upon it because the acts alleged did not come within the exceptions to sovereign immunity. The common pleas court sustainеd PENNDOT’s preliminary objections and dismissed it as a party. Powell appealed to the Commonwealth Court which affirmed the court of common pleas.
Our standard of review for preliminary objections is well settled. We must accept all material facts set forth in the complaint as well as all the inferences reasonably deducible therefrom as true.
Muhammad v. Strassburger,
In this Commonwealth, a party may bring an action against a Commonwealth agency such as PENNDOT only where the Commonwealth has specificаlly waived sovereign immunity. See 42 Pa.C.S. § 8521. 1 h For the purposes of the instant case, the Commonwealth, by statute, has waived sover *490 eign immunity only “for damages arising out of a negligent act where the damages would be recoverable under the common law” and where that negligence fits within one of nine enumerated exceptions. See 42 Pa.C.S. § 8522 2 . Neither party disputes that this action properly fits within the enumerated exception found at subsection (b)(4) relating to Commonwealth real estate and highways. 3 Thus, if this negligence action is one sustainable under the common law for damages, sovereign immunity is properly waived under 42 Pa.C.S. § 8522.
Petitioner avers in her complaint that co-dеfendants Drumheller and PENNDOT are jointly liable for the death of her husband as a result of their negligent acts. We have long held that a defendant is not relieved from liability because another concurring cause is also responsible for producing injury.
See, e.g., Jones v. Montefiore Hospital,
*491 Proximate cause is a term of art, and may be established by evidence that a defendant’s negligent act or failure to act was a substantial factor in bringing about the harm inflicted upon a plaintiff. Pennsylvania lаw has long recognized that this substantial factor need not be ... the only factor____
Jones,
We affirmed these principles of concurrent or joint causation in
Crowell v. City of Philadelphia,
“[T]he jury found that the actions of the City’s employee were a substantial contributing cause of the action. Thus since the basis of the jury’s verdict was the active negligence of the City’s employee misplacing the directional sign, and not merely the City’s status along the chain of causation, the verdict against the City was proper.... ”
Crowell,
We recognize that our decision in Crowell reaffirmed the principle of joint liability by concurrent causes in the context *492 of our governmental immunity statute, but we find these principles equally, if not more so, aрplicable in this case involving sovereign immunity. 4 Here, Powell alleges that her husband’s death was a result of the joint negligence of Drumheller and PENNDOT. Much like the situation in Crowell, Ms. Powell avers that the accident was caused by two concurring causes: (1) the negligent driving of Mr. Drumheller under the influence of alcohol and (2) the negligent design and maintenance of the Commonwealth highway which prevented Mr. Powell from taking action to avoid the accident.
The question of concurrent causation is normally one for a jury.
See Vattimo v. Lower Bucks Hosp.,
Inc.,
PENNDOT makes much of the fact that Powell averred in her complaint that Drumheller caused the accident. PENNDOT strenuously argues that this averment is a judicial admission that Drumheller caused the accident.
See Dale Manufacturing Co. v. Bressi,
Finally, PENNDOT argues that Drumheller’s criminal negligence is an intervening cause which supersedes its own negligence and relieves it of liability for Mr. Powell’s death.
5
In determining whether an intervening force is a superseding cause, the test is whether the intervening conduct was so extraordinary as not to have been reasonably foreseeable.
Bleman v. Gold,
In arguing that Drumheller’s criminal negligence is a superseding intervening cause, PENNDOT places much reliance on our decision in
Dickens v. Homer,
PENNDOT argues that
Dickens
stands for the proposition that an intervening force is a
per se
superseding cause whenever the intervening act is a criminal act. Thus, PENNDOT argues that Drumheller’s criminal negligence in driving under the influence automatically relieves it оf any liability from the accident. As an initial matter, it should be noted that
Dickens
was concerned with immunity under the particular language of our governmental immunity statute, rather than our sovereign immunity statute. In any event, we do not believe that
Dickens
stands for the proposition that any criminal negligence renders an intervening force a supersеding cause. We have previously recognized that criminal conduct does not act as a
per se
superseding force. In
Ford v. Jeffries,
In summation, we do not agree that any violation of a criminal statute constitutes a superseding cause. Instead, the proper focus is not on the criminal nature of the negligent act, but instead on whether the act was sо extraordinary as not to be reasonably foreseeable. This was our approach in
Crowell.
There, the City of Philadelphia similarly argued that the defendant driver’s conviction for driving under the influence was a superseding cause that insulated the City from all liability. We rejected this argument and, instead, found that the driver’s actions in following the misplaced sign were entirely “foreseeable.”
Crowell,
A determination of whether an act is so extraordinary as to constitute a superseding cause is normally one to be made by the jury.
See Mascaro v. Youth Study Center,
For the reasons stated above, we reverse the order of the trial court sustaining the preliminary objections of the Appellee.
Notes
. Section 8521 provides in pertinent part:
(a) General Rule. — Except as otherwise provided in this subchapter, no provision of this title shall constitute a waiver of sovereign immunity....
. Section 8522 provides in pertinent part:
(a) Liability imposed. — The General Assembly, pursuant to section 11 of Article I of the Constitution of Pennsylvania, does hereby waive, in the instances set forth in subsection (b) only and only to the extent set forth in this subchapter and within the limits set forth in section 8528 (relating to limits on damages), sovereign immunity as a bar to an action against Commonwealth parties, for damages arising out of a negligent act where damages would be recoverable under the common law or a statute creating a cause if action if the injury were caused by a person not having availablе the defense of sovereign immunity.
. This section provides in pertinent part:
(4) Commonwealth real estate, highways and sidewalks. — A dangerous condition of Commonwealth agency real estate and sidewalks, including Commonwealth-owned real property, leaseholds in the possession of a Commonwealth agency and Commonwealth owned real property leased by a Commonwealth agency to рrivate persons, and highways under the jurisdiction of a Commonwealth agency....
. The issue of joint liability was particularly troublesome in the governmental immunity context because of the language of our governmental immunity statute. That statute, 42 Pa.C.S. § 8541 provides that a local agency shall not be liable for damages on account of injury to a person caused by "any other person.” The Commonwealth Court interpreted this language to mean that a municipality could not be jointly liable with any other person. Our sovereign immunity statutes does not include similar language.
. One commentator has explained the difference between an intervening сause and a concurrent cause:
"In determining issues of legal or proximate cause, an intervening cause has been said to be material only in so far as it supersedes a prior wrong as the proximate cause of an injury, while the concept of concurring cause is characterized by the fact that two or more of such causes may contribute to, and thus be legal or proximate causes of, an injury for the purposes of imposing liability.
57 Am.Jur.2d Negligence § 554.
