[PUBLISH]

IN THE UNITED STATES COURT OF APPEALS

FOR THE ELEVENTH CIRCUIT

________________________

No. 12-14600

________________________

D.C. Docket No. 8:08-cv-02446-JDW-TBM

TAMPA BAY WATER, 

a regional water supply authority, 

Plaintiff - Appellant,

versus

HDR ENGINEERING, INC., 

a Nebraska corporation, 

Defendant - Cross

Defendant – Appellee.

________________________

Appeal from the United States District Court

for the Middle District of Florida

________________________

(September 23, 2013)

Before BARKETT and MARCUS, Circuit Judges, and HUCK,* District Judge.

MARCUS, Circuit Judge: 

 * Honorable Paul C. Huck, United States District Judge for the Southern District of Florida, 

sitting by designation.

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Appellant Tampa Bay Water (“TBW”) challenges three pretrial rulings that 

preceded its defeat at trial in this diversity case. The subject matter of the lawsuit

was a reservoir, owned by TBW, which developed large cracks in its earthen 

embankments shortly after construction. TBW sued several defendants, including 

HDR Engineering (“HDR”) and Barnard Construction Company (“Barnard”), 

alleging that HDR defectively designed the reservoir and that Barnard defectively 

constructed it. The amount in controversy was very large; TBW’s initial settlement

demands exceeded $200 million, and it ultimately sought more than $100 million

in damages at trial. Prior to trial, TBW settled with Barnard and entered into a 

series of factual stipulations that essentially absolved Barnard of liability. On the 

basis of those stipulations, the district court granted Barnard summary judgment, 

leaving only TBW and HDR to go to trial. TBW argued that HDR’s defective 

design caused the reservoir damage. HDR presented an alternative theory to the 

jury, alleging that Barnard’s construction techniques caused the damage. The jury 

found in HDR’s favor, leading to this appeal.

The primary issue on appeal concerns the district court’s decision to allow 

HDR to present evidence that Barnard caused the reservoir damage. According to 

TBW, both Florida’s comparative negligence statute and estoppel principles should 

have barred the introduction of this evidence, since Barnard had been absolved of 

liability to TBW by the district court’s grant of summary judgment in Barnard’s 

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favor. After thorough review, we conclude that the district court properly denied 

TBW’s motion to exclude HDR’s evidence. TBW advanced one theory of 

causation against Barnard, which it expressly disavowed as part of its settlement 

agreement with Barnard. When the district court granted summary judgment to 

Barnard, therefore, the court addressed and rejected only that theory. The district 

court had no occasion to adjudicate the merits of HDR’s alternative theory of 

causation. Thus, the grant of summary judgment did not estop HDR from 

presenting that theory and the surrounding facts to the jury.

TBW also claims that the district court improperly admitted HDR’s expert’s 

testimony despite the fact that his methodology was unreliable and never peerreviewed, and that the district court wrongly denied TBW leave to amend its 

complaint for a second time after the close of discovery. The district court did not 

abuse its discretion in either respect and, therefore, we affirm its judgment.

I.

A.

Tampa Bay Water is a regional water supply authority that provides drinking 

water for the Tampa Bay area. In November 1998, TBW and HDR entered into a 

contract for the design of a large reservoir project. TBW also contracted with 

Barnard to build the reservoir based on HDR’s design. Because water in an earthen 

reservoir may seep away, HDR’s design included the use of plastic sheeting called 

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a “geomembrane” within the embankment. A protective layer of two to three feet 

of soil was placed over the geomembrane. On top of that layer, the inner slope of 

the reservoir consisted of “soil cement,” a mixture of soil and cement designed to 

prevent erosion of the reservoir’s inner walls.

The reservoir began operating in June 2005. By late 2006, two areas of the 

reservoir’s embankment -- one in the northeast quadrant, one in the southwest --

exhibited large cracks in the soil cement. TBW contacted HDR and asked it to 

investigate the cracks. According to TBW, HDR used its investigation to figure out 

a way to escape its own liability and to produce evidence of other parties’ fault. 

Eventually, TBW fired HDR and tasked its system engineer, Black & Veatch, with

completing the investigation.

In December 2008, TBW sued HDR and Barnard in the United States 

District Court for the Middle District of Florida. The complaint alleged that HDR’s 

design was defective because of the failure to account for excess pore pressure. 

The complaint also alleged that Barnard had negligently constructed the reservoir 

with improperly blended soil, and that HDR had negligently performed its field 

inspection and quality-control duties during construction. In November 2009, 

TBW filed an amended complaint.

The parties advanced several different theories regarding the cause of the 

cracking. One of TBW’s theories was that the cracking was caused by excess pore 

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pressure (“the excess pore pressure theory”), which meant that the layer of soil 

between the soil cement and the geomembrane was trapping excess water. The

excess water exerted pressure on the soil cement and pushed it up, leading to the 

cracks. This theory put the blame squarely on HDR, since a different design could 

have avoided this problem. Initially, TBW also asserted that Barnard had used 

improperly blended soil in the intermediate layer. The soil then created “lenses, 

pockets, streaks, and layers,” which permitted the excess pore pressure to develop 

(“the lenses and pockets theory”).

HDR’s theory was that the cracking was not caused by the soil cement being 

pushed up but rather by the cement collapsing. According to HDR, the protective 

soil layer on top of the geomembrane was too thick, too loose, and too dry in the 

two areas where the soil cement cracked. When the soil became saturated with 

water, it became denser and lost volume, causing the soil cement to collapse and 

crack (“the collapse upon wetting theory”). This theory placed the blame on 

Barnard. Notably, TBW never asserted the collapse upon wetting theory as an 

alternative theory of causation against Barnard.

B.

Three of the district court’s pretrial rulings are at issue in this appeal. In 

December 2010, after discovery closed, TBW filed a timely motion requesting 

leave to amend its complaint for a second time. Among other things, TBW wished 

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to add claims for professional negligence and breach of an implied covenant of 

good faith and fair dealing based on HDR’s post-cracking investigation. The 

district court granted the motion in part, allowing TBW to bolster its allegations in 

Count One (concerning HDR’s defective design), but denied leave to amend to add 

the two new claims pertaining to HDR’s post-cracking investigation. The district 

court found that TBW knew of the factual basis for both of those claims well 

before December 2010 and had unduly delayed bringing the motion.

The second contested ruling concerned HDR’s expert, Dr. Bromwell. TBW 

moved to exclude Bromwell because his testimony relied on using results from a 

test called “ASTM D 4767” to determine whether the reservoir’s protective soil 

layer was susceptible to collapse upon wetting. According to TBW, ASTM D 4767

was not a reliable or widely accepted method for measuring collapse potential. The 

district court denied TBW’s motion and permitted Bromwell to testify for two

reasons. First, HDR had produced several peer-reviewed articles that suggested 

that triaxial tests like ASTM D 4767 could be used to determine the collapse 

potential of a soil sample. Second, Bromwell had explained in his deposition how 

he had derived his assessment of the collapse potential from the ASTM D 4767 

data.

The final contested ruling requires some more background. In March 2011,

TBW and Barnard entered into a high-low settlement agreement, which obligated 

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Barnard to pay a minimum of $750,000 and capped its maximum exposure at 

$5,000,000. The agreement also contained an extensive set of stipulated facts that 

essentially absolved Barnard of liability. The agreement did not dispose of TBW’s 

claims against Barnard, however, and in fact required Barnard to stand trial and 

call certain witnesses and prevented Barnard from calling others. The ultimate 

thrust of the agreement was that Barnard would remain a nominal defendant at trial 

but would (like TBW) blame HDR for the damage.

HDR moved to void the settlement agreement as collusive or, in the 

alternative, suggested that the district court enter summary judgment in Barnard’s 

favor so that Barnard could not participate at trial. The district court ordered TBW 

to show cause why summary judgment should not be entered in favor of Barnard.1

TBW argued that, although the stipulations disavowed Barnard’s responsibility 

under the excess pore pressure theory, TBW could still pursue Barnard under its 

lenses and pockets theory.

The district court granted Barnard summary judgment and found it not liable 

to TBW. To start with, the court noted that TBW had abandoned any claim against 

Barnard not based upon the lenses and pockets theory. However, TBW and 

Barnard expressly stipulated that the lenses and pockets in the soil were not the 

cause of the damage. Moreover, they further stipulated that HDR, not Barnard, was 

 1 Barnard could not move for summary judgment itself under the terms of the settlement, which 

barred it from filing any dispositive motion.

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responsible for the existence of the lenses and pockets. The district court 

concluded, therefore, that TBW’s sole theory of Barnard’s liability was “foreclosed 

by its own admissions.” Since the district court granted summary judgment to 

Barnard, it did not decide on the validity of the settlement agreement.

After the district court granted Barnard summary judgment, HDR moved to 

include Barnard as a so-called Fabre defendant,2 which would allow the jury to 

apportion responsibility for the damages between HDR and Barnard under 

Florida’s comparative negligence statute. The district court denied HDR’s motion 

based on Florida cases holding that a former defendant cannot be treated as a Fabre

defendant after summary judgment has been entered in its favor. According to the 

district court, summary judgment had resolved the question of Barnard’s liability 

once and for all.3

These twists and turns brought about the final contested ruling. TBW moved 

in limine to exclude all evidence of HDR’s collapse upon wetting theory, based on 

the fact that the district court had granted Barnard summary judgment and then 

denied HDR’s request to include Barnard as a Fabre defendant. TBW raised three 

 2 Fabre v. Marin, 623 So. 2d 1182 (Fla. 1993).

3 The propriety of denying HDR the opportunity to include Barnard as a Fabre defendant is not 

before us. Therefore, we need not and do not express any opinion regarding whether the denial of 

HDR’s motion to add Barnard as a Fabre defendant was proper under the rather unusual 

procedural circumstances presented here.

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grounds in its motion: Florida’s comparative negligence law, federal collateral 

estoppel, and state judicial estoppel.

The district court denied TBW’s motion. The district court reasoned that, at 

bottom, the issue was one of collateral estoppel: could HDR introduce evidence 

that Barnard had caused the damage under the collapse upon wetting theory, when 

the court had determined that Barnard was not liable? In analyzing the 

requirements for applying estoppel, the district court determined that the issues 

were not identical, and that HDR’s collapse upon wetting theory had never been 

actually litigated. The summary judgment proceeding disposed only of TBW’s 

lenses and pockets theory and never had occasion to consider or determine the 

merits of HDR’s collapse upon wetting theory. The court also drew a distinction 

between liability and causation and concluded that its summary judgment order 

had adjudicated the former but not the latter. In other words, while Barnard could 

no longer be found liable to TBW, this was not equivalent to a determination that 

Barnard’s construction techniques had not caused the damage to the reservoir. The 

district court therefore held that HDR was not precluded from presenting its theory 

“to the jury from the perspective of causation as opposed to fault.”

The case proceeded to trial. TBW argued that HDR was liable based on its 

excess pore pressure theory, while HDR argued that the cause of the damage was 

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collapse upon wetting. To this end, HDR put on Dr. Bromwell as its main expert. 

The jury returned a verdict of no liability.

II.

We review the interpretation of state law de novo, FTC v. Leshin, 618 F.3d 

1221, 1231 (11th Cir. 2010), mindful that, “[a]s a federal court sitting in diversity, 

we are required to apply the law as declared by the state’s highest court,” CSX 

Transp., Inc. v. Trism Specialized Carriers, Inc., 182 F.3d 788, 790 (11th Cir. 

1999) (per curiam). In the absence of authority on point, “we follow relevant

decisions of Florida’s intermediate appellate courts” and attempt “to determine the 

issues of state law as we believe the Florida Supreme Court would.” State Farm 

Fire & Cas. Co. v. Steinberg, 393 F.3d 1226, 1231 (11th Cir. 2004). We review the 

applicability of direct or collateral estoppel principles de novo. United States v. 

Weiss, 467 F.3d 1300, 1308 (11th Cir. 2006). However, we review the district 

court’s application of judicial estoppel for abuse of discretion. Robinson v. Tyson 

Foods, Inc., 595 F.3d 1269, 1273 (11th Cir. 2010). We review the district court’s 

decision to admit or exclude expert testimony for abuse of discretion. Gen. Elec. 

Co. v. Joiner, 522 U.S. 136, 142-43 (1997). Finally, we also review the district 

court’s denial of leave to amend for abuse of discretion. Burger King Corp. v. 

Weaver, 169 F.3d 1310, 1315 (11th Cir. 1999).

A.

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We first address TBW’s attempt to exclude HDR’s collapse upon wetting 

theory, since this issue warrants the most extended discussion. TBW’s position is 

that HDR’s collapse upon wetting theory blamed Barnard for causing the damage, 

but the district court’s grant of summary judgment in Barnard’s favor had already 

adjudicated Barnard’s fault. Thus, in the first place, Florida’s comparative 

negligence law would have barred the presentation of this evidence.4 Moreover, 

collateral estoppel barred HDR from introducing evidence against Barnard when 

the district court’s grant of summary judgment already had exonerated Barnard. 

Finally, judicial estoppel barred HDR from asserting that Barnard was the cause of 

the damage when HDR had taken a contradictory position earlier in this lawsuit by 

not opposing the grant of summary judgment.

HDR initially responds that TBW waived this entire claim by failing to 

object to the introduction of its causation evidence at trial. According to HDR, the 

district court’s preliminary ruling on a motion in limine could not preserve this 

claim for appeal. However, under the Federal Rules of Evidence, it is no longer 

necessary for a party to renew an objection to evidence when the district court has 

definitively ruled on the party’s motion in limine. In relevant part, Rule 103 

provides, “Once the court rules definitively on the record -- either before or at trial 

 4 In the event we cannot decide this state-law claim since there are no Florida Supreme Court or 

appellate court precedents on the issue, TBW also moves us to certify the question of whether 

Florida’s comparative negligence law would bar the presentation of evidence that a former codefendant caused the damages. For the reasons we explain below, certification is unnecessary.

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-- a party need not renew an objection or offer of proof to preserve a claim of error 

for appeal.” Fed. R. Evid. 103(b). As the commentary explains, “The amendment 

applies to all rulings on evidence whether they occur at or before trial, including 

so-called ‘in limine’ rulings.” Fed. R. Evid. 103 advisory committee’s note. Thus, 

we review claims of error raised and decided in an in limine motion as long as the 

district court’s ruling was definitive. See, e.g., Proctor v. Fluor Enters., Inc., 494 

F.3d 1337, 1349-50 (11th Cir. 2007). Because the district court’s ruling in this case 

was sufficiently definitive, we will consider the merits of TBW’s position.

5

TBW begins by arguing that fundamental principles of Florida’s

comparative negligence law should have precluded HDR from introducing its 

evidence against Barnard. Florida’s comparative negligence law renders a party 

liable only for the share of total damages proportional to its fault. Fla. Stat. 

§ 768.81(3). Under Florida law, once a court has entered summary judgment in one 

defendant’s favor, that former defendant can no longer be included on the verdict 

form as a so-called Fabre defendant for purposes of apportioning fault to that 

defendant. See, e.g., Crowell v. Kaufmann, 845 So. 2d 325, 327 (Fla. 2d DCA

2003). TBW argues for an extension of this Crowell principle: if a former 

 5 The district court stated that the “motion [to exclude] is not going to be granted”; that “to the 

extent TBW thinks that by virtue of the ruling on the Fabre issue [HDR is] not going to be able 

to put on [its] collapse upon wetting [theory], that’s not going to happen”; and that “that is my 

ruling.”

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defendant cannot be included on the verdict form, then no evidence attributing the 

cause of the damages to that defendant should be admitted either.

Although TBW asserts that the Crowell principle is a rule of Florida’s 

substantive comparative negligence law (and, impliedly, that an extension of the 

Crowell principle barring the introduction of evidence would also be a substantive 

rule), it is not. As Florida’s Third District Court of Appeals made clear in Southern 

Bell Telephone & Telegraph Co. v. Florida Department of Transportation, the very 

case cited by Crowell,

[I]f the Fabre defendant is exonerated because there is no evidence of 

fault, that defendant does not go on the verdict form. Here, because 

the trial judge determined as a matter of law that DOT was not at 

fault, . . . Southern Bell would not be entitled to have DOT placed on 

the verdict form. Southern Bell and DOT are bound by the lower 

court’s judgment. . . . Southern Bell would be collaterally estopped 

from asserting DOT’s fault, either for the purpose of seeking 

contribution or for the purpose of having DOT appear on the verdict 

form in the underlying action so as to offset its liability.

668 So. 2d 1039, 1041 (Fla. 3d DCA 1996) (original emphasis omitted and 

emphasis added). In short, this rule does not stem from Florida’s comparative 

negligence statute but rather is merely an application of Florida’s state collateral 

estoppel doctrine.

In asking us to apply and extend Crowell and Southern Bell, and by treating 

this issue as one of state substantive law, TBW implicitly is asserting that we

should apply Florida’s collateral estoppel law. Yet, as this Court has 

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unambiguously held, “federal preclusion principles apply to prior federal decisions, 

whether previously decided in diversity or federal question jurisdiction.” CSX 

Transp., Inc. v. Bhd. of Maint. of Way Emps., 327 F.3d 1309, 1316 (11th Cir. 

2003); see also Precision Air Parts, Inc. v. Avco Corp., 736 F.2d 1499, 1503 (11th 

Cir. 1984) (“When a federal court sitting in diversity examines the collateral 

estoppel or res judicata effect of a prior federal judgment, based either on diversity 

or a federal question, it must apply federal common law.”).

Citibank, N.A. v. Data Lease Financial Corp., 904 F.2d 1498 (11th Cir. 

1990), provides an instructive example. In that diversity case, Citibank sued Data 

Lease, which then filed several counterclaims against Citibank and third-party 

defendants who had been directors of a Citibank subsidiary. Id. at 1499. Data 

Lease and the directors entered into a settlement agreement that specifically stated 

that Data Lease would dismiss its claims against the directors while reserving its 

claims against Citibank, and the district court dismissed the counterclaims against 

the directors based on that agreement. Id. at 1500. The district court then also 

dismissed Data Lease’s counterclaims against Citibank, notwithstanding the fact 

that the settlement agreement did not purport to dispose of those claims, because 

Florida law established that a principal cannot be held liable when its agent is 

exonerated. Id. A panel of this Court affirmed but did not rely on Florida’s 

preclusion rules. Rather, the panel began with the proposition that, “even in a case 

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which rests its subject matter jurisdiction solely upon diversity of citizenship, a 

federal court must apply federal law to determine the preclusive effect of a prior 

federal court decision.” Id. at 1501. The panel then applied the federal common 

law rule that “a judgment exonerating a servant or agent from liability bars a 

subsequent suit on the same cause of action against the master or principal based 

solely on respondeat superior,” and affirmed the district court’s dismissal of Data 

Lease’s counterclaims. Id. at 1502. 

Just as in Citibank, we must apply federal collateral estoppel law to 

determine the preclusive effect of the district court’s grant of summary judgment to 

Barnard. For this reason, TBW’s first argument lacks merit, and there is no need to 

certify any question of law to the Florida Supreme Court.

As for whether HDR should have been estopped under federal law, the rule 

for applying either direct or collateral estoppel is well-established.6 A party asking 

the court to apply estoppel must establish that “(1) the issue at stake is identical to 

 6 HDR argues that collateral estoppel is not the proper doctrine to apply to this question because 

collateral estoppel typically addresses the effect of a final judgment in one proceeding on a 

separate proceeding. At most, this point has some semantic relevance. While it is true that “the 

term ‘direct estoppel’ more appropriately characterizes the application of estoppel principles” 

within the context of a single case or cause of action, the “analysis . . . remains the same, whether 

we refer to the application of estoppel principles as ‘direct’ or ‘collateral.’” United States v. 

Shenberg, 89 F.3d 1461, 1478 (11th Cir. 1996); see also DuChateau v. Camp, Dresser & McKee, 

Inc., 713 F.3d 1298, 1301 (11th Cir. 2013) (“‘Direct estoppel’ is a form of issue preclusion that 

arises ‘within the confines of a single claim or cause of action.’” (quoting 18 Charles Alan 

Wright, Arthur R. Miller & Edward H. Cooper, Federal Practice and Procedure § 4418 (2d ed. 

2002)). Thus, panels of this Court in the past have used the two terms interchangeably. See

Shenberg, 89 F.3d at 1478.

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the one involved” in the earlier proceeding; “(2) the issue was actually litigated” in 

the earlier proceeding; “(3) the determination of the issue . . . must have been a 

critical and necessary part” of the earlier judgment; and “(4) the party against 

whom collateral estoppel is asserted must have had a full and fair opportunity to 

litigate the issue.” Dana v. E.S. Originals, Inc., 342 F.3d 1320, 1323 (11th Cir. 

2003) (internal quotation marks omitted). If established, then “estoppel operates to 

bar the introduction or argumentation of certain facts necessarily established in a

prior proceeding.” United States v. Lee, 622 F.2d 787, 790 (5th Cir. 1980).7

The problem with TBW’s argument is that the district court never had 

occasion to consider HDR’s collapse upon wetting theory of causation when 

adjudicating the summary judgment proceeding between TBW and Barnard. TBW 

had abandoned all theories of causation against Barnard except the lenses and 

pockets theory, and the district court found that theory and that theory alone 

foreclosed by TBW and Barnard’s factual stipulations. Estoppel did not bar HDR 

from presenting its collapse upon wetting theory when the summary judgment did 

not consider, address, or in any way depend upon deciding the validity of that 

theory. 

 7 In Bonner v. City of Prichard, 661 F.2d 1206, 1209 (11th Cir. 1981) (en banc), this Court 

adopted as binding precedent all decisions of the former Fifth Circuit handed down prior to 

October 1, 1981.

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Indeed, as the district court accurately explained, none of the first three 

elements for estoppel were established. In the first place, whether collapse upon 

wetting caused the reservoir damage was not at issue in the summary judgment 

proceedings. The question there was not whether Barnard’s construction 

techniques had caused the damage to the reservoir under any possible theory of 

causation. As the district court explained, its summary judgment order addressed 

only the much narrower question of whether Barnard could be liable to TBW under 

TBW’s own distinct theory of the case -- the lenses and pockets theory -- and in 

light of the settlement agreement’s stipulated facts. Holding TBW and Barnard to

their stipulations, the district court found that there were no disputed facts between 

those two parties, and that Barnard could not possibly be liable to TBW under 

TBW’s lenses and pockets theory.

The summary judgment was necessarily limited because causation, as a 

factual question, and liability to a particular party, as a legal question, are distinct.

The district court properly distinguished between the two concepts while 

explaining its ruling. Under Florida law, liability necessarily encompasses four 

elements: (1) a duty of care; (2) a breach of that duty; (3) causation; and (4) actual 

loss or damages. Curd v. Mosaic Fertilizer, LLC, 39 So. 3d 1216, 1227 (Fla. 2010). 

The district court’s summary judgment meant that Barnard was “found not liable 

as a matter of law,” which implies only that TBW “could not establish an essential 

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element” of its particular claim against Barnard. Price v. Beker, 629 So. 2d 911, 

912 (Fla. 4th DCA 1993). Since TBW advanced only the lenses and pockets theory 

of causation, and those parties’ stipulated facts stated that the presence of lenses 

and pockets had not caused the reservoir damage, TBW could never establish the 

causation element of the limited claim it chose to pursue.

HDR’s collapse upon wetting theory sought to prove that Barnard caused the 

reservoir damage in an entirely different way. If Barnard had used thick, dry, and 

loose soil, the embankment would have collapsed, causing the reservoir damage. 

This theory attributed the reservoir damage to a different flaw in Barnard’s 

construction technique than the one initially alleged by TBW and necessitated 

proof of a wholly different set of facts. Thus, TBW could not even meet the first 

requirement for applying estoppel. See In re McWhorter, 887 F.2d 1564, 1568

(11th Cir. 1989) (per curiam) (issues in two proceedings not identical for estoppel 

purposes if there is a different or “further inference of fact . . . required”).

The district court also properly concluded, for much the same reasons, that

HDR’s collapse upon wetting theory was never actually litigated, nor was it a 

critical and necessary part of the summary judgment. As both this Court and its 

predecessor Court have long recognized, “issue preclusion bars the relitigation of 

issues actually adjudicated, and essential to the judgment, in a prior litigation.” 

Kaspar Wire Works, Inc. v. Leco Eng’g & Mach., Inc., 575 F.2d 530, 535-36 (5th 

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Cir. 1978). However, it is “insufficient for the invocation of issue preclusion that 

some question of fact or law in a later suit was relevant to a prior adjudication 

between the parties; the contested issue must have been litigated and necessary to 

the judgment earlier rendered.” Id. at 536.

TBW never alleged that collapse upon wetting had caused the reservoir 

damage. Thus, TBW and Barnard never joined issue on whether collapse upon 

wetting had occurred and, if so, who was responsible. Moreover, the judgment in 

Barnard’s favor was not based on a factfinder’s determination of causation after an 

adversarial proceeding but rather on a set of joint stipulations. Plainly, a set of 

stipulations does not “reflect the considered judgment of a judicial officer” or a 

jury; “it has been forged by [the parties] alone as an adjustment of conflicting 

claims and is not a tempered determination of fact and law after the annealment of 

an adversary trial.” Id. at 538. For this reason, we cannot treat the factual issue of 

causation as actually litigated or, in this case, necessary to the judgment.8

 8 As we see it, TBW’s arguments to the contrary rely on two flawed assumptions. First, TBW 

reiterates several times that the summary judgment proceeding definitively resolved the issue of 

Barnard’s fault. Again, the legal issue of Barnard’s fault or liability is not equivalent to the 

factual issue of whether Barnard caused the damage under HDR’s collapse upon wetting theory. 

TBW also argues that the collapse upon wetting theory “actually was litigated at summary 

judgment” because the stipulated facts “included references to HDR’s theory,” but HDR did not 

contradict those facts or argue that those facts precluded summary judgment. TBW insists, in 

other words, that the stipulations between TBW and Barnard are binding on HDR because it did 

not oppose the grant of summary judgment to Barnard. But an issue is not “actually litigated if it 

is the subject of a stipulation between the parties,” and at most “may . . . be binding in a 

subsequent action between the parties if the parties have manifested an intention to that effect.” 

Restatement (Second) of Judgments, § 27 cmt. e (1982). Since these stipulations were not 

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We therefore hold that, in the procedural posture of this case, the summary 

judgment granted to Barnard did not directly estop HDR from introducing 

evidence at trial that Barnard caused the damage.9

Finally, TBW argues that judicial estoppel should have barred HDR’s 

collapse upon wetting theory. We remain unpersuaded. Judicial estoppel is 

“designed to prevent parties from making a mockery of justice by inconsistent 

pleadings.” McKinnon v. Blue Cross & Blue Shield of Ala., 935 F.2d 1187, 1192 

(11th Cir. 1991) (internal quotation mark omitted). While judicial estoppel “cannot 

be reduced to a precise formula or test,” Zedner v. United States, 547 U.S. 489, 

504 (2006), three factors typically inform the inquiry: (1) whether there is a clear 

inconsistency between the earlier position and the later position; (2) a party’s 

success in convincing a court of the earlier position, so that judicial acceptance of 

the inconsistent later position would create the perception that either the earlier or 

later court was misled; and (3) whether the inconsistent later position would 

unfairly prejudice the opposing party. See Robinson, 595 F.3d at 1273.

 

actually litigated, and the parties to the stipulations were TBW and Barnard, they cannot fulfill 

the requirements for issue preclusion or be applied against another party (e.g., HDR).

9 In so holding, we do not mean to imply that a summary judgment absolving one defendant of 

liability can never have issue-preclusive effect as to a subsidiary factual question. For example, 

in a case where the only disputed issue was causation, and there were no factual stipulations 

between the plaintiff and the defendant, then a district court’s grant of summary judgment to that 

defendant may well have issue-preclusive effect on co-defendants’ attempts to later introduce 

evidence of the exonerated defendant’s causation.

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The district court did not abuse its discretion when it concluded that this 

doctrine did not bar HDR’s collapse upon wetting theory. To begin with, there is 

no inconsistency between HDR’s positions during the summary judgment 

proceeding and at trial. HDR did not oppose the court granting summary judgment 

to Barnard. However, this was because TBW had stipulated away Barnard’s fault, 

at least with regard to TBW’s theory of the case. At no point in the proceedings did 

HDR disavow its collapse upon wetting theory or assert that Barnard was not the 

cause of the damage to the reservoir. In addition, the district court was never 

misled by HDR’s position; it did not grant the summary judgment based on any 

factual finding that Barnard did not cause collapse upon wetting. Finally, HDR’s 

collapse upon wetting theory did not unfairly prejudice TBW. TBW’s only 

assertion to that effect is that, if Barnard had remained in the case, the jury could 

have assessed damages against Barnard. But it was TBW’s stipulations, not 

anything that HDR did, that foreclosed the possibility of Barnard remaining in the 

case as a defendant.

B.

TBW also claims that the district court abused its considerable discretion by 

admitting Dr. Bromwell’s expert testimony. Fed. R. Evid. 702 provides that:

A witness who is qualified as an expert by knowledge, skill, 

experience, training, or education may testify in the form of an 

opinion or otherwise if:

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(a) the expert’s scientific, technical, or other specialized 

knowledge will help the trier of fact to understand the 

evidence or to determine a fact in issue;

(b) the testimony is based on sufficient facts or data;

(c) the testimony is the product of reliable principles and 

methods; and

(d) the expert has reliably applied the principles and 

methods to the facts of the case.

As the Supreme Court recognized in Daubert v. Merrell Dow Pharmaceuticals, 

Inc., Rule 702 contemplates that the district court will serve as a gatekeeper to the 

admission of scientific testimony. 509 U.S. 579, 589 (1993); see also McCorvey v. 

Baxter Healthcare Corp., 298 F.3d 1253, 1256 (11th Cir. 2002). Under Daubert

and its progeny, we conduct a three-part inquiry to determine the admissibility of 

expert testimony, weighing whether:

(1) [T]he expert is qualified to testify competently regarding the 

matters he intends to address; (2) the methodology by which the 

expert reaches his conclusions is sufficiently reliable as determined by 

the sort of inquiry mandated in Daubert; and (3) the testimony assists 

the trier of fact, through the application of scientific, technical, or 

specialized expertise, to understand the evidence or to determine a 

fact in issue.

City of Tuscaloosa v. Harcros Chems., Inc., 158 F.3d 548, 562 (11th Cir. 1998) 

(footnote omitted) (citing Daubert, 509 U.S. at 589).

Since we review the district court’s determinations on every prong of the 

Daubert inquiry only for abuse of discretion, we defer to the district court’s 

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judgments and will not reverse unless the district court’s ruling was “manifestly 

erroneous.” Joiner, 522 U.S. at 142. “[I]t is by now axiomatic that a district court 

enjoys considerable leeway in making these determinations.” United States v. 

Frazier, 387 F.3d 1244, 1258 (11th Cir. 2004) (en banc) (internal quotation marks 

omitted). Indeed, under this standard of review, “there will be occasions in which 

we affirm the district court even though we would have gone the other way had it 

been our call.” In re Rasbury, 24 F.3d 159, 168 (11th Cir. 1994).

TBW’s attack on Dr. Bromwell addresses only Daubert’s second prong --

whether his methodology was sufficiently reliable under Daubert. Bromwell used a 

preexisting set of data, produced by ASTM D 4767 testing of soil samples from the 

embankment prior to the completion of construction. ASTM D 4767 provided only 

a single set of data quantifying the volume and density change in a soil sample that

has been subjected to both water saturation and loading, but, according to TBW, 

the proper test would have measured the volume and density change due to water 

saturation alone. Another test, ASTM D 5333, is a test that applies only water 

saturation and evaluates the collapse potential of soil. Since Bromwell failed to use 

ASTM D 5333 data, the argument goes, his conclusion that the soil collapse was 

caused by wetting was not produced by a reliable methodology.

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Under Daubert, the reliability of the expert’s methodology is a contextspecific inquiry. The Supreme Court has instructed district courts to weigh four 

factors in making their decision:

(1) whether the expert’s methodology has been tested or is capable of 

being tested; (2) whether the theory or technique used by the expert 

has been subjected to peer review and publication; (3) whether there is 

a known or potential error rate of the methodology; and (4) whether 

the technique has been generally accepted in the relevant scientific 

community.

United Fire & Cas. Co. v. Whirlpool Corp., 704 F.3d 1338, 1341 (11th Cir. 2013) 

(per curiam) (citing Daubert, 509 U.S. at 593-94). “At the same time, the Court has 

emphasized that these factors are not exhaustive and are intended to be applied in a 

‘flexible’ manner.” Id. (quoting Kumho Tire Co. v. Carmichael, 526 U.S. 137, 141 

(1999)). Thus, for example, the absence of publications on a given methodology 

does not mean that an expert’s testimony based on that methodology is 

inadmissible. See Daubert, 509 U.S. at 593 (“Publication (which is but one element 

of peer review) is not a sine qua non of admissibility; it does not necessarily 

correlate with reliability . . . .”); United Fire & Cas. Co., 704 F.3d at 1342-43 

(finding that expert testimony should have been admitted despite the lack of 

publications supporting the expert’s findings).

We cannot find that the district court’s admission of Bromwell’s testimony 

was manifestly erroneous or an abuse of discretion. TBW’s primary objection is 

that only one testing method -- ASTM D 5333 -- is the accepted method for 

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evaluating collapse potential, and Bromwell failed to use that method.10 Yet the 

district court had some basis for evaluating the relative reliability of Bromwell’s 

method. An article which TBW submitted to the district court states that, in 

measuring collapse potential, “the most critical conditions are the degree of 

saturation and dry density of the soil and the total overburden pressure,” and that 

“[t]o accommodate these three variables, collapse tests are typically conducted 

utilizing standard oedometric or triaxial equipment.” The article also notes that, 

while different triaxial tests produce different results, they “generally indicate only 

small differences in the predicted magnitudes of collapse.” TBW does not dispute 

that ASTM D 4767 is a triaxial test. Thus, although perhaps not ideal, Bromwell’s 

data was produced by a recognized triaxial testing method whose protocol is 

widely accepted in the scientific community. At the very least, TBW does not 

dispute that the ASTM D 4767 protocol accurately measured the volume and 

density change of the soil sample.

As for the main flaw in the use of ASTM D 4767 -- the fact that it measured 

the volume and density change that occurred under the influence of two variables, 

load and water saturation -- Bromwell had multiple measurements from the same 

soil samples under different loads but the same water saturation. Using those points 

 10 Bromwell apparently used the preexisting ASTM D 4767 data because those tests were taken

during the development of the embankment, and thus were the best measurement of the soil’s 

collapse potential when the reservoir was being built.

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of comparison, he could extrapolate to what extent the volume and density change 

was attributable to each variable. Since the changes in load resulted in only small 

differences, Bromwell concluded that the ASTM D 4767 test effectively measured 

the change in volume and density due to water saturation. Bromwell’s 

extrapolation relies on mathematics, not unscientific supposition. The district 

court’s acceptance of this explanation fell well within the range of choice it 

possessed as the gatekeeper for expert testimony.

TBW levels two additional objections. First, TBW’s own expert, Dr. 

Brumund, testified by affidavit that Bromwell’s methods were unreliable. But this 

kind of disagreement between experts ordinarily goes to the credibility of expert 

testimony, not its admissibility, and is the province of the jury. See Rosenfeld v. 

Oceania Cruises, Inc., 654 F.3d 1190, 1193 (11th Cir. 2011) (“[I]n most cases, 

objections to the inadequacies of a study are more appropriately considered an 

objection going to the weight of the evidence rather than its admissibility.” 

(internal quotation marks omitted)). In Quiet Technology DC-8, Inc. v. HurelDubois UK Ltd., for example, one objection to the expert’s testimony was that his 

modeling failed to include all variables and therefore could not produce a 

“meaningful correlation of flight test results with computer results.” 326 F.3d 

1333, 1346 (11th Cir. 2003). Quoting the Supreme Court, we stated, “‘[n]ormally, 

failure to include variables will affect the analysis’ probativeness, not its 

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admissibility.’” Id. (alteration in original) (quoting Bazemore v. Friday, 478 U.S. 

385, 400 (1986)). The same applies here: Brumund’s and Bromwell’s 

disagreements could be aired out in front of the jury and tested by the crucible of 

cross-examination. See id. at 1345 (“The identification of such flaws in generally 

reliable scientific evidence is precisely the role of cross-examination.”).

TBW also asserts that HDR’s sole argument for reliability was an invocation 

of Bromwell’s impressive credentials. Yet Bromwell’s explanation of his method 

was a logical one, not a mere assertion of his credentials. Moreover, it was not 

improper for the district court to consider Bromwell’s credentials in evaluating 

whether his methodology was reliable. Although an expert’s qualifications go 

primarily to the first prong of Daubert’s inquiry, “an expert’s overwhelming 

qualifications may bear on the reliability of his proffered testimony” even if “they 

are by no means a guarantor of reliability.” Id. at 1341. In this case, Bromwell 

received both his bachelor’s degree, in Chemical Engineering, and his doctorate, in 

Civil Engineering, from MIT. He spent his academic career authoring or coauthoring dozens of articles in the area of soil science, and his nonacademic career 

was devoted to the design, analysis, and evaluation of earthen embankments. In 

fact, Bromwell had designed thirty to forty earthen embankments, most of which 

were reservoirs or similar projects. These qualifications bolstered HDR’s showing 

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of reliability, and the district court committed no manifest error by allowing the 

jury to hear Bromwell’s testimony.

C.

Finally, the district court did not abuse its discretion in denying TBW’s 

motion for leave to amend its complaint for a second time.

TBW claims that the district court applied the incorrect legal standard: a 

“distinct disfavor” standard found in the Middle District of Florida’s Local Rules 

rather than the permissive standard found in Fed. R. Civ. P. 15(a)(2). “A district 

court abuses its discretion if it applies an incorrect legal standard [or] follows 

improper procedures in making a determination . . . .” Citizens for Police 

Accountability Political Comm. v. Browning, 572 F.3d 1213, 1216-17 (11th Cir. 

2009). In this case, the district court correctly identified the relevant legal standard 

drawn from Rule 15, which states, “[A] party may amend its pleading [if later than 

twenty-one days after serving it] only with the opposing party’s written consent or 

the court’s leave. The court should freely give leave when justice so requires.” Fed. 

R. Civ. P. 15(a)(2). The relevant local rule, which the district court also cited, 

states, “It is the goal of the court that a trial will be conducted in all Track Two 

case within two years after the filing of the complaint . . . . A motion to amend any 

pleading . . . is distinctly disfavored after entry of the Case Management and 

Scheduling Order.” M.D. Fla. Local Rule 3.05(c)(2)(E) (emphasis added).

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We invalidate local rules when their application is incompatible with the 

Federal Rules of Civil Procedure. See Fed. R. Civ. P. 83(a) (“A local rule must be 

consistent with -- but not duplicate -- federal statutes and rules adopted under 28 

U.S.C. §§ 2072 and 2075 . . . .”); Jackson v. Crosby, 375 F.3d 1291, 1296 (11th 

Cir. 2004). However, when the district court cites both rules but applies the 

controlling federal standard, we need not consider the local rule’s theoretical or 

possible inconsistency. See Dunlap v. Transamerica Occidental Life Ins. Co., 858 

F.2d 629, 632 (11th Cir. 1988) (per curiam). In this case, although Rule 15 and the 

local rule exhibit some tension with one another, the district court applied the 

federal standard. We know this because the district court cited several Rule 15 

cases in determining that TBW had unduly delayed moving for leave to amend -- a 

reason both Supreme Court and this Court’s case law have expressly identified as a 

valid reason to deny leave. See, e.g., Foman v. Davis, 371 U.S. 178, 182 (1962); 

Nat’l Serv. Indus., Inc. v. Vafla Corp., 694 F.2d 246, 249 (11th Cir. 1982).

TBW next disputes the district court’s finding of undue delay, which was the 

ground for denying TBW leave to add two new counts to its complaint. A district 

court may find undue delay when the movant knew of facts supporting the new 

claim long before the movant requested leave to amend, and amendment would 

further delay the proceedings. See, e.g., Campbell v. Emory Clinic, 166 F.3d 1157, 

1162 (11th Cir. 1999) (“The facts upon which the claims . . . were based were 

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available at the time the complaints were filed.”); Nat’l Serv. Indus., Inc., 694 F.2d 

at 249. While “[t]he lengthy nature of litigation, without any other evidence of 

prejudice to the defendants or bad faith on the part of the plaintiffs, does not justify 

denying the plaintiffs the opportunity to amend their complaint,” Bryant v. Dupree, 

252 F.3d 1161, 1164 (11th Cir. 2001) (per curiam), prejudice “is especially likely 

to exist if the amendment involves new theories of recovery or would require 

additional discovery,” 3 James Wm. Moore et al., Moore’s Federal Practice

¶ 15.15[2].

TBW has failed to meaningfully rebut the district court’s factual findings, 

which TBW must demonstrate were clearly erroneous. See Doe v. Cassel, 403 F.3d 

986, 990-91 (11th Cir. 2005) (per curiam). The district court concluded that TBW 

knew many of the facts supporting its two new claims -- which both concerned 

HDR’s post-cracking investigation -- before TBW filed either its initial complaint, 

in December 2008, or its first amended complaint, in November 2009. In 

particular, the district court found that TBW had fired HDR in October 2008 and 

retained a different firm to complete the investigation, and, prior to that point, 

TBW had repeatedly expressed frustration with HDR’s inadequate work and lack 

of results. The head of TBW’s investigation team, Kennedy, was so frustrated with 

HDR’s head engineer, Meyer, that Kennedy didn’t even want to speak with Meyer 

on the phone. In addition, the two new claims alleged that HDR wasted time 

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performing an ineffectual trench drain test, but a January 2010 report in TBW’s 

possession had criticized the trench drain test as poorly designed, meaning that 

TBW has known the basis for that allegation for almost a year prior to requesting 

leave to amend. Finally, the district court found that amendment would prejudice 

HDR, since it would introduce an entirely new theory of recovery into the case 

after the close of discovery. The inevitable result of amendment would be that 

“HDR would need to investigate the facts and prepare to defend against the new 

claim[s],” which would require additional discovery and further delay the trial.

TBW resists these findings in three ways, but we remain unpersuaded. TBW 

asserts that, although it was dissatisfied with HDR’s conduct during the 

investigation, it only learned other facts pertinent to these claims toward the end of 

discovery. Yet it is apparent that TBW had had enough discovery to state both

claims by January 2010, well before the end of the discovery period and TBW’s 

December 2010 request to amend for a second time. In addition to the facts that the 

district court specifically identified in its order, TBW was even aware of factual 

allegations that HDR had hired its own expert, Dr. Link, to assess HDR’s liability. 

Indeed, TBW spends several pages of its brief discussing Dr. Link’s involvement 

as crucial evidence of HDR’s duplicity, yet admits that it had learned of Link’s 

“true role” as early as July 2009. As is by now well-established, a complaint need

only “contain a short and plain statement of the claim” accompanied by “enough 

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facts to make a claim for relief plausible on its face.” Resnick v. AvMed, Inc., 693 

F.3d 1317, 1324-25 (11th Cir. 2012) (internal quotation marks omitted). TBW 

knew enough to make a short, plain, and plausible statement of its claims 

concerning HDR’s investigation.

Next, TBW claims that there would have been little to no prejudice to HDR 

because TBW asked for leave to amend only shortly after the close of discovery. 

Thus, any additional discovery could have occurred within the seven months prior 

to trial. Again we are unpersuaded. After discovery closed in December 2010, 

HDR was entitled to, and did file a motion for summary judgment in February 

2011. The district court would necessarily have had to allow HDR to complete 

discovery on all of the new claims prior to the deadlines for dispositive motions, 

which would necessitate appending discovery to the front-end of the schedule and 

pushing all of the other deadlines back. Indeed, since TBW’s new claims related to 

a distinct set of facts, there also could have been and likely would have been 

motions in limine contesting each party’s experts or other evidence. Thus, TBW’s 

bare claim that there would be no delay is unconvincing. At all events, we can 

discern no abuse of discretion in the district court’s determination.

Lastly, TBW faults the district court for failing to consider the prejudice to 

TBW. While it is true that the district court’s order does not explicitly discuss 

prejudice to TBW, the district court’s finding that TBW had the ability to plead 

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this claim earlier contains the implicit finding that TBW was the cause of its own 

prejudice. Moreover, as courts of appeals have long recognized, a district court is 

“not obligated to list, and reject, factors that might have supported a contrary 

decision” in the exercise of its discretion. J.P. Stevens Co. v. Lex Tex Ltd., 822 

F.2d 1047, 1053 (Fed. Cir. 1987); cf. United States v. Kuhlman, 711 F.3d 1321, 

1326 (11th Cir. 2013) (in sentencing, a “district court should set forth enough 

information to satisfy the reviewing court of the fact that it has considered the 

parties’ arguments and has a reasoned basis for making its decision, but nothing 

requires the district court to state on the record that it has explicitly considered 

each of the § 3553(a) factors” (internal quotation marks and citations omitted)). 

The district court’s thorough, seventeen-page order gave ample and detailed 

consideration to both parties’ arguments and counterarguments.11

AFFIRMED; MOTION TO CERTIFY DENIED.

 11 Because undue delay was an adequate ground for the district court to deny TBW leave to add 

both the express contractual claim and the claim for breach of an implied covenant of good faith 

and fair dealing, we need not and do not address the district court’s alternative holding that the 

implied-covenant claim was futile.

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