Affirmed by published opinion. Judge WILLIAMS wrote the opinion, in which Chief Judge WILKINSON and Judge GREGORY joined.
OPINION
McLean Contracting Company (McLean) filed this maritime claim against Waterman Steamship Corporation (Waterman) in the United States District Court for the Eastern District of Virginia, seeking damages arising from an allision between a barge, which was operated by Waterman, and the Newport River Railroad Bridge, which McLean was responsible for repairing. After a bench trial, the United States Magistrate Judge entered judgment in favor of McLean. 1 On appeal, Waterman argues that the magistrate judge improperly excluded evidеnce and applied an improper presumption of fault. For the reasons that follow, we affirm.
I.
During August 1998, McLean was engaged in replacing the Newport River Railroad Bridge in Morehead City, North Carolina. On August 22, 1998, the M/V SAM HOUSTON (the Sam Houston) arrived in Morehead City. The Sam Houston discharged a number of “LASH” barges, a type of barge used for the storage of cargo. One of the LASH barges discharged from the Sam Houston was the CG-5151, which was scheduled to be towed to South Carolina for ultimate unloading of its cargo. Waterman hired James River Towing Company to provide tug boats and labor to *479 handle Waterman’s barges while they were in Morehead City and hired Captain Robert M. Glander to oversee the securing of the barges in Morehead City.
Hurricane Bonnie swept through More-head City during the early morning of August 27, 1998. During the hurricane, CG-5151 brоke free from its moorings and allided with the Newport River Railroad Bridge. McLean repaired the damage resulting from the allision, incurring approximately $17,562.33 in out-of-pocket damages.
II.
On February 23, 2001, following a pretrial conference, the district court entered a final pretrial order, through which McLean and Waterman each identified the disputed issues for trial and proffered opposing factual contentions. A few days prior to trial, the parties submitted proposed findings of fact and conclusions of law to the magistrate judge. In Waterman’s submission, it asserted for the first time that it could not be liable for the acts or omissions of James River Towing or Glander, in that each was a third-party contractor. McLean filed an objection and moved to exclude evidence relating to Watеrman’s third-party contractor defense, arguing that because Waterman did not identify this defense in the pretrial order, it was precluded from asserting the defense at trial. After hearing argument, the magistratе judge excluded evidence related to Waterman’s third-party contractor defense. We review the magistrate judge’s determination that the pre-trial order barred Waterman’s third-party contractor defense for abuse of discretion.
Karsten v. Kaiser Found. Health Plan,
Waterman contends that the district court’s rеliance on the pretrial order to exclude its third-party contractor defense was an abuse of discretion because it improperly placed the burden upon Waterman to disprоve the agency relationships asserted by McLean. Waterman correctly notes that, as a matter of settled agency law, the burden to prove agency falls upon McLean oncе the issue is in dispute.
See
3 Am.Jur.2d,
Agency
§ 359, at 869 (2d ed.1986) (stating that “[w]henever the existence of the relationship of principal and agent is in issue, the burden of proving the issue rests with the party who asserts ... the existence of the relationship.”). The burden of proof on issues that have been placed in dispute, however, is independent of the burden to identify disputed issues.
Cf. Gorlikowski v. Tolbert,
The pretrial order and the pleadings made clear that McLean intеnded to impute liability to Waterman for the acts of James River Towing and Glander. Indeed, Waterman concedes that it was aware that agency was an “integral element of McLean’s theory оf liability against Waterman.” (Reply Br. at 5.) In the pretrial order, Waterman stipulated that it was the “operator” of CG-5151. (J.A. at 14.) Further, the pretrial order provided Waterman the opportunity to list all of the triable issues, and Waterman listed the following: (1) whether McLean had standing; (2) whether McLean was entitled to recovery for economic loss absent physical damage to its property; (3) whether Hurricаne Bonnie was an Act of God; and (4) whether Waterman acted reasonably to secure its barges. Notably absent from this list is any reference to Waterman’s agency relationship, or lack therеof, with James River Towing or Glan-der. Moreover, no other aspect of the pretrial order implicates James River Towing or Glander as having been independently at fault for securing CG 5151. Viewing the prеtrial order in its entirety, we have little difficulty concluding that the magistrate judge did not err by determining that Waterman failed to identify agency as a disputed issue for trial.
Failure to identify a legal issue worthy of trial in the pretrial conference or pretrial order waives the party’s right to have that issue tried. Fed.R.Civ.P. 16 notes to 1983 Amendment (“[C]ounsel bear a substantial responsibility for assisting the court in identifying the factual issues worthy оf trial. If counsel fail to identify an issue to the court, the right to have the issue tried is waived.”);
Lexington Ins. Co.,
III.
Waterman also argues that the magistrate judge erred by applying a presumption of fault that imputed to Waterman the fault of James River Towing and Glander. The parties agree that, under
*481
аdmiralty law, a moving vessel that allides with a stationary, visible object is presumed to be at fault.
3
See The Oregon,
Waterman correctly notes that the presumption of fault does not apply to an in personam action against a barge owner when the persons at fault are independent contractors and not agents of the barge owner.
Sturgis v. Boyer,
IV.
Because the magistrate judge reasonably excluded Waterman’s third-party contractor defense pursuant to the pretrial order and properly applied a presumption of negligence to Waterman for the acts of its agents, we affirm the magistrate’s judgment in favor of McLean.
AFFIRMED.
Notes
. The parties consented to have their case tried before a magistrate judge pursuant to 28 U.S.C.A. § 636(c)(1) (West 1993 & Supp. 2001).
. As Waterman concedеd at oral argument, it never sought to modify the pretrial order. Thus, we have no occasion to consider whether such a modification, if sought, would have been proper.
. This presumption does not apply if the defendant shows that the allision was caused by an "Act of God.” The magistrate judge found that Waterman did not meet its burden of proving the "Act of God” defense sufficient to excuse application of the presumption, and Waterman does not appeal that finding.
