Walia v. CPX Carrier CA1/1

Filed 3/13/24 Walia v. CPX Carrier CA1/1
NOT TO BE PUBLISHED IN OFFICIAL REPORTS
California Rules of Court, rule 8.1115(a), prohibits courts and parties from citing or relying on opinions not certified for
publication or ordered published, except as specified by rule 8.1115(b). This opinion has not been certified for publication or
ordered published for purposes of rule 8.1115.

IN THE COURT OF APPEAL OF THE STATE OF CALIFORNIA

FIRST APPELLATE DISTRICT

DIVISION ONE

PREET WALIA, et al.
A165798
Plaintiffs and Appellants,

v.
(Contra Costa County
CPX CARRIER, INC., et al., Super. Ct. No. MSC19-01707)

Defendants and Respondents. ORDER MODIFYING OPINION
AND DENYING REHEARING

[NO CHANGE IN JUDGMENT]

It is ordered that the opinion filed herein on February 20, 2024, be
modified as follows:
1. On page 1, modify the first sentence by deleting the phrase “stopped
traffic caused by” and adding, after the words “one side of a
highway,” the phrase “and resultant queues of stopped traffic,” so
that the sentence reads:
“This appeal concerns whether an overturned tractor trailer
blocking all lanes on one side of a highway and resultant queues
of stopped traffic can constitute a dangerous condition of public
property for purposes of Government Code section 835.”

1
 2. On page 8, in the first full paragraph (which begins, “Here, plaintiffs
do not claim . . .”), modify the second sentence by deleting the colon
and the words “queues of stopped traffic” after the words “condition
of public property,” so that the sentence reads:
“Rather, plaintiffs claim the blockage of the freeway caused by
the overturned big rig created a new dangerous condition of
public property.2”
There is no change in the judgment.

Appellants’ petition for rehearing is denied.

Dated:

____________________________
Humes, P. J.

A165798

2
Filed 2/20/24 Walia v. CPX Carrier CA1/1 (unmodified opinion)
NOT TO BE PUBLISHED IN OFFICIAL REPORTS
California Rules of Court, rule 8.1115(a), prohibits courts and parties from citing or relying on opinions not certified for
publication or ordered published, except as specified by rule 8.1115(b). This opinion has not been certified for publication or
ordered published for purposes of rule 8.1115.

IN THE COURT OF APPEAL OF THE STATE OF CALIFORNIA

FIRST APPELLATE DISTRICT

DIVISION ONE

PREET WALIA, et al.
Plaintiffs and Appellants,
A165798
v.
CPX CARRIER, INC., et al., (Contra Costa County
Defendants and Respondents. Super. Ct. No. MSC19-01707)

This appeal concerns whether stopped traffic caused by an overturned
tractor trailer blocking all lanes on one side of a highway can constitute a
dangerous condition of public property for purposes of Government Code
section 835. That statute defines when a public entity can be liable for
injuries suffered on public property. (Gov. Code1, § 835.) Here, the family of
a man killed in an accident at the site of such a traffic blockage sued the
California Department of Transportation (Caltrans) under section 835. The
trial court granted summary judgment in favor of Caltrans. It held the
blockage did not constitute a dangerous condition of public property as a
matter of law. We will affirm on that basis and also because Caltrans is
immune from liability for its claimed failure to provide traffic or warning
signals or devices. (§ 830.8.)

1
All undesignated statutory citations are to the Government Code.

1
 I. BACKGROUND
At 1:20 a.m. on May 25, 2018, a tractor trailer overturned on eastbound
Interstate 80 (I-80 east). It caught on fire and spilled fuel and wreckage
across the highway, blocking all four eastbound lanes.
The accident occurred west of the Carquinez bridge and Pomona exit
and east of the Cummings Skyway exit. The California Highway Patrol
(CHP) responded, and the accident site was marked with cones and flares
and flashing lights from emergency responders. A CHP officer in charge of
the accident site concluded it would take hours to clear. Just before
2:00 a.m., he directed Caltrans to close I-80 east at Cummings Skyway and
divert all eastbound traffic off the highway at that exit. A Caltrans
maintenance supervisor received the directive minutes later and promptly
went to the accident site but did not effect a closure. Plaintiffs assert
Caltrans took no steps in the next two hours to close I-80 east or divert
traffic. Caltrans concedes there is a factual dispute whether it did so. For
purposes of this appeal, we will assume it did not. Caltrans undisputedly did
not post other warnings to approaching drivers of the freeway blockage at the
accident site or of traffic queues that subsequently developed.
After the initial accident, lines of stopped vehicles formed behind the
blockage. Just before 4:00 a.m.—two hours after the CHP’s closure
directive—Jaipal Walia neared the accident site while driving east on I-80.
He failed to stop his car in time and fatally collided with a semi-truck at the
end of a line of stopped vehicles. His wife and children sued Caltrans. They
asserted a single cause of action for dangerous condition of public property
under section 835. Plaintiffs’ complaint alleged Caltrans was negligent and
careless in the design, construction, maintenance, inspection, repair, and

2
control of I-80 at this location, and the adjacent area, such that the roadway
presented a dangerous, defective, and hazardous condition.
Caltrans moved for summary judgment. It contended plaintiffs could
not prove the existence of a dangerous condition of public property, as an
overturned big rig resulting in stopped traffic cannot amount to such a
condition. As for the lines of stopped vehicles on the roadway, Caltrans
contended they did not satisfy the definition of a dangerous condition, which
must pose a substantial risk to those using the property with due care.
(§ 830, subd. (a).) Caltrans contended a reasonable driver using due care
would have seen the emergency vehicles and stopped traffic and been able to
stop in time.
Plaintiffs opposed the motion. Among other evidence, they submitted a
declaration by a traffic engineer. He opined that a traffic stoppage is
dangerous when encountered without warning at 4:00 a.m. on a highway
with otherwise free-flowing traffic. He also described how I-80 east slopes up
to a crest after the Cummings Skyway exit, at a grade that kept drivers from
seeing the accident site until they reached the top, leaving little time to react.
Plaintiffs also submitted deposition testimony by Robert Williams, a
driver who reached the site just before Walia. He saw the stoppage when he
crested the slope an estimated quarter mile before the site and came to an
“aggressive stop,” braking suddenly but not to a degree that threatened a loss
of control. He felt afraid to stay in his lane because, if a subsequent driver
was “not paying attention as they came over the hill,” they might fail to stop
in time and hit him. He thus pulled onto the shoulder beside a stopped
tractor trailer, just behind the truck’s cab. About a minute later, as Williams
watched “very, very closely” in his rearview mirror, Walia’s car came over the

3
hill, “didn’t slow down until [Williams] almost lost sight of him” in his mirror,
and then “started braking very hard,” skidded, and hit the truck.
After hearing argument, the trial court issued an order granting
summary judgment. It based its ruling solely on a conclusion that plaintiffs
failed to establish that a dangerous physical condition of public property was a
causal factor in Walia’s collision.
II. DISCUSSION
Section 835 is part of the Government Claims Act (§§ 810–840.6). That
act—originally known as the Tort Claims Act—defines the liabilities and
immunities of public entities. (County of Santa Clara v. Superior Court
(2023) 14 Cal.5th 1034, 1047 & fn. 6.) A public entity “is not liable for
injuries except as provided by statute.” (Brown v. Poway Unified School Dist.
(1993) 4 Cal.4th 820, 829.) The act’s purpose is “ ‘to confine potential
governmental liability to rigidly delineated circumstances.’ ” (Ibid.)
Section 835 “sets out the exclusive conditions under which a public entity is
liable for injuries caused by a dangerous condition of public property.” (Ibid.)
To establish liability under section 835, a plaintiff must prove that, at
the time of injury, a dangerous condition existed on public property, that it
created a reasonably foreseeable risk of the kind of injury suffered, and that
it proximately caused the injury. (Ducey v. Argo Sales Co. (1979) 25 Cal.3d
707, 716.) A plaintiff must also prove that a public employee’s negligence or
misconduct created the condition, or that the public entity had actual or
constructive notice of the condition a sufficient time before the injury to
protect against it. (Ibid.) Section 830 defines a dangerous condition of
property as one creating a substantial risk of injury when the property is
used with due care. Section 830 extends responsibility for a dangerous
condition of public property to include risks from property adjacent to public

4
property when the conditions expose those using the public property to a
substantial risk of injury. (Bonanno v. Central Contra Costa Transit
Authority (2003) 30 Cal.4th 139, 148 (Bonanno).) “[A] dangerous condition
exists when public property is physically damaged, deteriorated, or defective
in such a way as to foreseeably endanger those using the property itself.
[Citations.] . . . [P]ublic property has also been considered to be in a
dangerous condition ‘because of the design or location of the improvement,
the interrelationship of its structural or natural features, or the presence of
latent hazards associated with its normal use.’ ” (Bonanno, at pp. 148–149,
italics omitted.) The fact that an accident occurs is not in and of itself
evidence that public property was in a dangerous condition at the time of
injury. (§ 830.5, subd. (a).)
While the existence of a dangerous condition is usually a question of
fact, it may be resolved as a matter of law “if reasonable minds can come to
only one conclusion.” (Zelig v. County of Los Angeles (2001) 27 Cal.4th 1112,
1133 (Zelig).) The Legislature has expressly authorized courts in appropriate
cases to determine no such condition existed: “A condition is not a dangerous
condition . . . if the trial or appellate court, viewing the evidence most
favorably to the plaintiff, determines as a matter of law that the risk created
by the condition was of such a minor, trivial or insignificant nature in view of
the surrounding circumstances that no reasonable person would conclude
that the condition created a substantial risk of injury when such property
. . . was used with due care” in a reasonably foreseeable manner. (§ 830.2.)
Even if a dangerous condition is demonstrated, a public entity may still
prevail through a variety of statutory immunities “which [it] may assert as
affirmative defense[s].” (Gonzales v. City of Atwater (2016) 6 Cal.App.5th
929, 945.) Section 830.8 creates one such immunity. It provides that a public

5
entity is not liable for injury caused “by the failure to provide traffic or
warning signals, signs, markings or devices” unless necessary to warn of a
concealed defect. (Kessler v. State of California (1988) 206 Cal.App.3d 317,
321–322.)
A trial court may grant summary judgment if “there is no triable issue
as to any material fact and . . . the moving party is entitled to a judgment as
a matter of law.” (Code Civ. Proc., § 437c, subd. (c).) “A defendant seeking
summary judgment must show that the plaintiff cannot establish at least one
element of the cause of action.” (Regents of University of California v.
Superior Court (2018) 4 Cal.5th 607, 618; see Code Civ. Proc., § 437c,
subd. (p)(2).) We independently review an order granting summary
judgment, considering all evidence set forth in the moving and opposing
papers “ ‘ “ ‘except that to which objections were made and sustained.’ ” ’ ”
(Hartford Casualty Ins. Co. v. Swift Distribution, Inc. (2014) 59 Cal.4th 277,
286.) “ ‘We liberally construe the evidence in support of the party opposing
summary judgment,’ ” resolving doubts in their favor. (Ibid.)
A. The Site Did Not Constitute a Dangerous Condition of Property.
Caltrans contends plaintiffs fail to establish a physical defect in I-80
that resulted in the existence of a dangerous condition. Its moving papers
contend that neither the complaint nor plaintiffs’ responses to interrogatories
asking them to identify the dangerous condition stated facts amounting to a
physical defect in public property that causally contributed to Walia’s
injuries. We agree.
Plaintiffs identified the dangerous condition as follows: Caltrans knew
secondary collisions like Walia’s accident are a foreseeable consequence of
primary collisions like the initial accident. Two hours before Walia’s
accident, the CHP informed Caltrans of the initial accident and of the need to
divert traffic off I-80 east at the exit before the accident site. Caltrans did not
6
divert traffic or warn drivers of the blockage. Lines of stopped cars formed.
A reasonable person driving on I-80 at 4:00 a.m. would not anticipate
encountering, without warning, a total stoppage of all lanes. The stoppage
was on the far side of a slope that made it difficult for drivers to see the
emergency vehicles, brake lights, and other signs of a stoppage until they
crested the slope, a short distance from the stopped vehicles.
The dispositive question is thus whether traffic queues resulting from
an initial accident caused solely by negligent third-party driving can amount
to a dangerous condition of public property for purposes of section 835.
The trial court analyzed liability cases in which third party misconduct
was the cause of injury, but in which a public entity was also found liable.
(Bonanno, supra, 30 Cal.4th at pp. 152–155; Zelig, supra, 27 Cal.4th at
pp. 1134–1137.) The court cited Bonanno and Zelig for the rule that, while a
public entity can be liable for injuries caused by third party misconduct on
public property, a “physical deficiency in the property itself” must have
increased the danger of such misconduct. That rule barred plaintiffs’ claim,
the court held, because no physical feature of I-80 east causally contributed to
the initial accident or to Walia’s accident.
Bonanno and Zelig do not directly address plaintiffs’ theory of liability.
The cases address public entity liability when a third party’s negligent or
criminal conduct on public property was the immediate cause of an injury, but
a preexisting condition of the property causally combined with the misconduct
to produce the harm. (Bonanno, supra, 30 Cal.4th at p. 152; Zelig, supra,
27 Cal.4th at pp. 1131–1137.) Courts have applied the rule when, for
example, the lack of a left-turn lane increased the risk that people waiting to
turn would be rear-ended by negligent drivers (Baldwin v. State of California
(1972) 6 Cal.3d 424, 426–428 & fn. 3, superseded by statute on other ground

7
as stated in Tansavatdi v. City of Rancho Palos Verdes (2023) 14 Cal.5th 639,
663–664); the location of a bus stop forced riders to use a dangerous
crosswalk, creating a risk they would be hit by negligent drivers (Bonanno,
supra, 30 Cal.4th at pp. 152–154); or a tree on a median strip increased the
severity of the injuries suffered by a family forced onto the median when a
negligent driver sideswiped their car (Cordova v. City of Los Angeles (2015)
61 Cal.4th 1099, 1106–1107). The theory of liability in such cases is that,
while third party misconduct injured a person, or immediately precipitated
the accident that did so, an existing physical condition of the property causally
contributed to the injury by increasing the risk or harmfulness of such
misconduct. (Bonanno, supra, 30 Cal.4th at pp. 152–154 and cases cited ante.)
Here, plaintiffs do not claim the negligent driving of the tractor trailer
directly harmed Walia or precipitated his accident, while a preexisting defect
in I-80 east contributed to the harm. Rather, plaintiffs claim the blockage of
the freeway caused by the overturned big rig created a new dangerous
condition of public property: queues of stopped traffic.2 Plaintiffs claim a
triable issue of fact exists because Caltrans had notice of the new dangerous
condition and time to protect against it by notifying motorists and/or closing
the freeway to divert traffic but did not do so.
Plaintiffs present an expert’s opinion that, while reasonable drivers
expect traffic stoppages at rush hour, they do not expect to encounter one at
4:00 a.m. They also cite evidence of Caltrans’s general knowledge that
secondary collisions at accident sites pose a risk. Finally, they cite evidence
that the accident site was on the far side of a slope that limited the site’s

2 Plaintiffs’ liability claims as to Caltrans are limited to a single cause

of action for dangerous condition of public property. Plaintiffs do not
otherwise contend that Caltrans had an independent mandatory duty to close
the freeway in response to the accident or to post traffic signage.

8
visibility to approaching drivers, and that Williams, a preceding driver, had
to brake aggressively to stop.
As authority for this novel theory, plaintiffs rely on Chavez v. County of
Merced (1964) 229 Cal.App.2d 387 (Chavez) and Briggs v. State of California
(1971) 14 Cal.App.3d 489 (Briggs). But neither Chavez nor Briggs supports
plaintiffs’ proposition.
In Chavez, a drunk driver veered off a highway and hit a utility pole,
downing a live power line. (Chavez, supra, 229 Cal.App.2d at pp. 390–391.)
The power line sparked a grass fire adjacent to the highway. (Id. at p. 391.)
A witness drove to a nearby county fire station, told an engineer of the crash
and electrical fire, and urged him to have the power cut off. (Ibid.) The
engineer did not do so. (Ibid.) He sounded an alarm for volunteer firemen
and went to the site. (Ibid.) He did not warn the volunteers of the live power
line, and an electrical arc from the line killed one of them. (Id. at p. 392.)
The Fifth District held the volunteer’s family was entitled to a trial on
their cause of action for a dangerous condition of public property. (Chavez,
supra, 229 Cal.App.2d at p. 394.) The court rejected the county’s claim that
the wire was not on the roadway, concluding that the public is entitled to use
“any part of the public street or highway.” (Ibid..) Finding the county was on
notice of the downed electrical wire through the county engineer, the court
found a triable issue of fact existed as to whether the county had a duty to
warn of the danger presented by the wire. (Id. at p. 397.)
Briggs v. State of California, supra, 14 Cal.App.3d 489 is similarly
distinguishable. Briggs did not involve negligent driving but a mudslide from
adjacent land, which blocked one lane of a two-lane highway on a rainy night.
(Id. at pp. 491–492.) To avoid the slide, a driver pulled into the other lane,
leading to a fatal collision. (Ibid.) On appeal, the state’s main argument was

9
that it lacked notice of the slide. (Id. at p. 494.) The court found sufficient
evidence of constructive notice of an obvious danger because state road crews
had cleared similar slides from the same spot “for a period of 10 days to two
weeks before the accident.” (Id. at p. 495.)
Unlike this case, Briggs and Chavez both involved dangerous physical
conditions of property adjacent to a public highway of which the public entity
had actual or constructive notice. In contrast, the existence of heavy traffic
upon a roadway does not constitute a physical defect of public property.3
(Brenner v. City of El Cajon (2003) 113 Cal.App.4th 434, 440 [heavy volume of
traffic and pedestrians without additional allegation of a physical condition of
the road that creates a substantial risk is not a dangerous condition]; accord,
Mittenhuber v. City of Redondo Beach (1983) 142 Cal.App.3d 1, 7 [heavy use
of any given paved road alone does not invoke section 835].) It follows that if
heavy traffic is not a physical defect of public property, neither is stopped
traffic.
Plaintiffs also rely on three decisions holding that materials left on
roads by negligent public employees created dangerous conditions. (Reel v.
City of South Gate (1959) 171 Cal.App.2d 49, 55–56 [unlit barricades left in
road by city engineer to divert drivers from newly painted traffic island were

3 Since Chavez, cases have continued to address the scope of a duty of a

public entity or official to remedy potential dangers caused by third parties
on the side of the roadway when no physical defect of property was involved.
(See, e.g., Bonds v. California ex rel. Cal. Highway Patrol (1982)
138 Cal.App.3d 314, 319 [CHP had no special duty to remove disabled car left
on side of road]; Posey v. State of California (1986) 180 Cal.App.3d 836, 850
[CHP decision whether to remove disabled vehicle from highway is
discretionary and no mandatory duty exists].)

10
a dangerous or defective condition of public property]; Wood v. County of
Santa Cruz (1955) 133 Cal.App.2d 713, 716–717 [trimmed branches left lying
on road by county employees created dangerous condition of public property];
Barsoom v. City of Reedley (1940) 38 Cal.App.2d 413, 419 [water pipe left
lying in street by curb, pending installation, on which pedestrian tripped at
night].) The cases are likewise distinguishable. Each involved the creation of
a latent dangerous physical condition on a roadway by a public employee.
Plaintiffs’ theory that a public entity can be liable for a dangerous
condition of public property when third party negligence creates a new
dangerous condition upon public property, despite no physical defect in
property with a causal link to the alleged injury, finds no support in
precedent. Liability is imposed only when there is some defect in the
property itself and a causal connection is established between the defect and
the injury. (Zelig, supra, 27 Cal.4th at p. 1135; Summerfield v. City of
Inglewood (2023) 96 Cal.App.5th 983, 995 [city not liable for shooting at public
park on theory of dangerous condition of property as no physical defect in
property identified as having causal link to injury; absence of human
supervision and protection is not a deficiency in the physical characteristics of
public property].)
Plaintiffs do not directly contend that the slope in the highway itself is
the dangerous condition of property with a causal connection to the Walia’s
accident. Instead, plaintiffs claim the risk of the queued traffic was
“heightened” by the presence of the slope. No evidence is presented of an
expert’s opinion that the slope did not meet required highway design
standards, was the result of a defective design or construction, or that
Caltrans was aware of prior accidents at the same location associated with
diminished visibility linked to the slope. Plaintiffs’ expert did not declare

11
that the design of the freeway was defective such that it created a dangerous
condition by preventing a driver exercising due care from being unable to
stop. Plaintiffs’ expert opined that the area’s topography “heightened the
danger of a secondary collision,” and that a driver cresting the hill had
“precious little time to perceive and react to the need to brake.”
However, plaintiffs’ own evidence establishes that drivers exercising
reasonable caution were able to stop. Williams was able to do so—as were
the drivers of the vehicles already at the site. While plaintiffs note
Williams’s fear that a later driver might hit him, what he testified was that a
driver “not paying attention as they came over the hill” might fail to stop.
Asked if he felt the situation was “dangerous because the crest in the road . . .
obscured the view of the stopped traffic,” he answered, “I wouldn’t say that. I
would say I was more scared of somebody not paying attention as they came
over the hill.”
Plaintiffs have thus not identified facts that established a physical
defect in public property amounting to a substantial risk of injury if the
highway was used with due care. Even if stopped traffic could present a
dangerous condition, plaintiffs have at most identified facts suggesting the
site was dangerous for drivers “not paying attention”—that is, failing to
exercise due care. It does not follow that the accident site or queued traffic
constituted a dangerous condition of property for which Caltrans is liable. A
public entity is required only “to provide roads that are safe for reasonably
foreseeable careful use.” (Chowdhury v. City of Los Angeles (1995)
38 Cal.App.4th 1187, 1196.) If a risk of harm arises “ ‘only when foreseeable
users fail to exercise due care, then such property is not “dangerous” within
the meaning of section 830.’ ” (Ibid.) To hold Caltrans liable in the instant

12
case would impermissibly render it an insurer of the safety of travelers. (See
Mittenhuber v. City of Redondo Beach, supra, 142 Cal.App.3d at p. 6.)
B. Caltrans Is Immune from Liability Under Section 830.8.
Even if the big rig accident and resulting queued traffic could be
considered a dangerous condition of public property, Caltrans would still be
entitled to judgment as a matter of law on an alternative basis it raised below
but the trial court did not reach. (See Garrett v. Howmedica Osteonics
Corp. (2013) 214 Cal.App.4th 173, 181 [summary judgment must be affirmed
if correct on any ground raised below].) That basis is section 830.8, which
immunizes a public entity from liability “for an injury caused by the failure to
provide traffic or warning signals, signs, markings or devices described in the
Vehicle Code.” (§ 830.8.)
Plaintiffs do not dispute that section 830.8 applies to their claims
against Caltrans. But plaintiffs contend their claim falls within the
“concealed trap” exception to section 830.8 immunity. The exception applies
if a warning is required by a dangerous condition of a road that “would not be
reasonably apparent to, and would not have been anticipated by, a person
exercising due care.” (§ 830.8; see Tansavatdi v. City of Rancho Palos Verdes
(2023) 14 Cal.5th 639, 655, 660 [“ ‘concealed trap’ exception”].)
But plaintiffs identify no facts amounting to a concealed trap.
Specifically, as discussed above, they have not identified facts permitting a
finding that the stoppage “would not be reasonably apparent” to a driver
exercising due care. (§ 830.8.) They rely on the declaration of their traffic
expert, but it creates at most a triable dispute as to whether such a driver
would have “anticipated” a full traffic stoppage at the early hour of 4:00 a.m.
A “concealed trap,” however, must be both unanticipated and not reasonably
apparent. (§ 830.8.) Plaintiffs’ own evidence establishes the accident site

13
and queued traffic were apparent once a driver crested the slope preceding
the accident site.
Additionally, to establish a concealed trap, a public entity must still
have actual or constructive notice of the concealed trap to establish a duty to
warn. (Tansavatdi v. City of Rancho Palos Verdes, supra, 14 Cal.5th at
pp. 660–662.) Here, plaintiffs cited evidence showing only that Caltrans
knew accident sites in general create a risk of secondary collisions, and
Caltrans had notice of this site’s existence and the CHP directive to close the
highway at least two hours before Walia’s accident. Plaintiffs cited no
evidence Caltrans knew that a slope of the highway at the location where
traffic queued restricted drivers’ ability to see the stoppage.
Plaintiffs also fail to cite any decision finding a concealed trap on
remotely similar facts. The lone case they cite, Callahan v. City and County
of San Francisco (1967) 249 Cal.App.2d 696 (Callahan I), is unhelpful. In
Callahan I, the plaintiff alleged that a road in a fog-prone area “was designed
with the appearance of a freeway” but ended in a T intersection, beyond
which lay a lake. (Id. at p. 698.) On a foggy night, a driver allegedly thought
he was on a freeway, was unable to see that the road ended, and drove into
the lake, injuring his passenger. (Ibid.) On appeal from a judgment entered
after the city’s demurrer, the primary issue was whether the passenger’s
operative complaint could state a cause of action even though her initial
complaint had named only the driver and had alleged he was drag racing.
(Ibid..)
After analyzing the above issue at length, the court of appeal noted in a
paragraph near the end of its opinion that the city cited section 830.8.
(Callahan I, supra, 240 Cal.App.2d. at p. 704; see id. at pp. 698–704.) The
court stated only that the immunity does not apply “when a warning sign is

14
necessary to warn of a concealed trap.” (Ibid.) The court thus did not affirm
a finding of a trap.
On remand in Callahan, moreover, the city secured a summary
judgment. (Callahan v. City and County of San Francisco (1971)
15 Cal.App.3d 374, 375.) The appellate court affirmed on grounds including a
lack of evidence that a dangerous condition existed. (Id. at pp. 379–380,
citing § 830.6.) The court relied on statistical evidence of a lack of accidents
at the site and on the fact other drivers facing “exactly the same conditions”
at the same time on the night at issue had been able to stop. (Ibid.)
Other than the statistics regarding secondary collisions at accident
sites, plaintiffs cite no facts regarding other accidents at the same location.
Further, Williams was traveling in exactly the same conditions as Walia a
few minutes earlier but was able to stop.
A leading concealed trap case, Cameron v. State of California (1971)
7 Cal.3d 318, offers a telling contrast to this case. The Supreme Court held
the state could be liable for injuries caused by failing to warn of a dangerous
“S” curve. (Id. at pp. 323–324.) The danger involved the curve’s inconsistent
banking. (Id. at p. 323.) It changed abruptly in a way that could make a car
roll, but “a driver entering the curve could not ascertain the existence of this
change . . . and thereby determine the proper speed to negotiate the curve,
until already committed to the curve.” (Ibid.) A driver might then “find
himself trapped” and unable to negotiate the curve, despite proceeding at a
lawful speed with due care. (Ibid.) Similarly, in Anderson v. City of
Thousand Oaks (1976) 65 Cal.App.3d 82, no signs warned of a curve with a
design speed 20 mph below the speed limit, so “even a cautious driver might
well commit himself to the curve” at an unsafe speed. (Id. at p. 93.) And in
Feingold v. County of Los Angeles (1967) 254 Cal.App.2d 622, a promontory

15
adjacent to an intersection kept drivers in two directions from seeing each
other until they were “committed to the intersection.” (Id. at p. 625.)
If a dangerous condition of public property existed that contributed to
Walia’s accident, Caltrans is immune from liability due to the failure to warn
and no concealed trap existed.
C. Plaintiffs’ Procedural Arguments Fail.
Plaintiffs make two meritless procedural challenges to the summary
judgment. First, noting that their responses to discovery were not “factually
devoid,” they contend Caltrans failed to shift the burden of production to
them. (See Aguilar v. Atlantic Richfield Co. (2001) 25 Cal.4th 826, 850–851.)
But while Caltrans submitted plaintiffs’ responses to interrogatories asking
them to state the facts amounting to a dangerous condition, its purpose was
not to shift the burden of production by showing they lacked evidence to
prove the facts they alleged. (Cf. Andrews v. Foster Wheeler LLC (2006)
138 Cal.App.4th 96, 106–107 [summary judgment proper in asbestos case, as
discovery responses identified no evidence of exposure to defendant’s
products].) Caltrans offered the responses to identify all the facts asserted by
plaintiffs—in their complaint and in discovery—in order to show that the
facts, even if proven, cannot amount to a dangerous condition as a matter of
law.
A court may make that determination as a matter of law. (§ 830.2.)
Many opinions confirm the propriety of so doing on summary judgment or
even demurrer if, as here, all relevant facts are undisputed or assumed to be
as plaintiffs allege. (See, e.g., Zelig, supra, 27 Cal.4th at p. 1137 [demurrer];
Brenner v. City of El Cajon, supra, 113 Cal.App.4th at p. 443 [same]; Cerna v.
City of Oakland (2008) 161 Cal.App.4th 1340, 1348 [summary judgment].)

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 Plaintiffs also contend summary judgment was improper because they
disputed a fact asserted in Caltrans’s separate statement—namely, that it
closed I-80 east before Walia’s accident. But we will not reverse a summary
judgment because the opposing party disputed a fact in the separate
statement that was not material to the issue on which judgment was granted.
(Pereda v. Atos Jiu Jitsu LLC (2022) 85 Cal.App.5th 759, 773.) Plaintiffs cite
a decision holding that, by including a fact in its separate statement, a party
implicitly concedes its materiality. (Insalaco v. Hope Lutheran Church of
West Contra Costa County (2020) 49 Cal.App.5th 506, 521–522, disagreed
with on other ground by Braganza v. Albertson’s LLC (2021) 67 Cal.App.5th
144, 155; accord, Nazir v. United Airlines, Inc. (2009) 178 Cal.App.4th 243,
252 [dictum].) But Insalaco shows only that a court has discretion to hold a
party to such a concession. (Insalaco, at pp. 521–522.) It does not follow that
a party’s concession of materiality can ever bind a court to treat as material a
fact that is not. (See Desny v. Wilder (1956) 46 Cal.2d 715, 729 [court is not
bound to accept parties’ concession on question of law].) Here, whether
Caltrans effected a closure of I-80 east is immaterial to its right to judgment
as a matter of law because, even assuming it did not do so, the facts plaintiffs
identify cannot amount to a dangerous condition as a matter of law.
III. DISPOSITION
The judgment is affirmed. Caltrans is entitled to its costs on appeal.
(Cal. Rules of Court, rule 8.278(a)(2).)

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 GETTY, J.

WE CONCUR:

HUMES, P. J.

BANKE, J.

A165798


Judge of the Solano County Superior Court, assigned by the Chief Justice
pursuant to article VI, section 6 of the California Constitution.
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