Board of Supervisors of Issaquena County v. United States ( 2023 )


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  • Case: 22-2026   Document: 32     Page: 1   Filed: 08/04/2023
    NOTE: This disposition is nonprecedential.
    United States Court of Appeals
    for the Federal Circuit
    ______________________
    BOARD OF SUPERVISORS OF ISSAQUENA
    COUNTY, MISSISSIPPI,
    Plaintiff-Appellant
    v.
    UNITED STATES,
    Defendant-Appellee
    ______________________
    2022-2026
    ______________________
    Appeal from the United States Court of Federal Claims
    in No. 1:21-cv-01415-LAS, Senior Judge Loren A. Smith.
    ______________________
    Decided: August 4, 2023
    ______________________
    PATRICK WAYNE PENDLEY, Pendley, Baudin & Coffin,
    Plaquemine, LA, argued for plaintiff-appellant. Also rep-
    resented by JOHN DEAKLE, RONALD JOHNSON, IV, Deakle-
    Johnson Law Firm, Hattiesburg, MS.
    BRIAN C. TOTH, Appellate Section, Environment and
    Natural Resources Division, United States Department of
    Justice, Washington, DC, argued for defendant-appellee.
    Also represented by TODD KIM.
    ______________________
    Case: 22-2026    Document: 32     Page: 2    Filed: 08/04/2023
    2          BOARD OF SUPERVISORS OF ISSAQUENA COUNTY v. US
    Before DYK, BRYSON, and STARK, Circuit Judges.
    DYK, Circuit Judge.
    The Board of Supervisors of Issaquena County, Missis-
    sippi (the “Board”) sued the United States in the Court of
    Federal Claims (“Claims Court”), alleging that actions or
    inactions by the United States led to flooding in 2018 and
    2019 that damaged the Board’s property and destroyed pri-
    vate property and reduced economic activity, thereby de-
    priving the county of tax revenue. The Board sought
    compensation for the damage under the Takings Clause of
    the Fifth Amendment of the U.S. Constitution. The Claims
    Court granted the government’s motion to dismiss, holding
    that the Board’s complaint failed to state a takings claim.
    Although we hold that the Board’s complaint failed to state
    a claim, we will exercise our discretion to permit the Board
    to seek leave from the Claims Court to amend its com-
    plaint. We therefore affirm in part and vacate and remand
    in part.
    BACKGROUND
    “At this stage in the proceedings, we accept the
    [Board’s] well-pleaded factual allegations as true,” and
    “may also look to matters incorporated by reference or in-
    tegral to the claim, items subject to judicial notice, and
    matters of public record.” A & D Auto Sales, Inc. v. United
    States, 
    748 F.3d 1142
    , 1147 (Fed. Cir. 2014) (internal quo-
    tation marks, modifications, and citations omitted).
    I
    Issaquena County lies on the southern edge of the Mis-
    sissippi Delta, an alluvial valley stretching approximately
    from the Tennessee-Mississippi border in the north to
    Vicksburg, Mississippi in the south. The Mississippi and
    Yazoo rivers converge on the east bank of the Mississippi
    just north of Vicksburg to form a Y shape, with the Missis-
    sippi running from the northwest and the Yazoo running
    Case: 22-2026    Document: 32      Page: 3    Filed: 08/04/2023
    BOARD OF SUPERVISORS OF ISSAQUENA COUNTY v. US             3
    from the northeast. The county is located in between those
    rivers.
    The Delta has often been flooded by its surrounding
    rivers, at times compounded by storms resulting from its
    proximity to the Gulf of Mexico. See United States v. Spo-
    nenbarger, 
    308 U.S. 256
    , 260 (1939) (“[O]ccupation of the
    alluvial valley of the Mississippi has always been subject
    to this constant hazard [of flooding].”). When a river over-
    flows its banks, the result is known as headwater flooding.
    Backwater flooding, by contrast, happens when a river,
    such as the Mississippi, rises more than a tributary such
    as the Yazoo, causing the tributary’s water to surge until it
    matches the height of the dominant river. There is no issue
    here of damage from Mississippi headwater flooding. In-
    stead, the Board claims damage that allegedly resulted
    from the government’s construction of gates and levees to
    prevent backwater flooding, which had the consequence of
    interfering with the natural drainage of floodwater created
    by excessive rainfall.
    In 1927, the Delta was struck by the Great Flood,
    which displaced more than 600,000 people, inundated 16
    million acres of land, and inspired the Delta Blues classic
    “When the Levee Breaks.” During the Great Flood, the
    Mississippi was 80 miles wide at Vicksburg, just south of
    Issaquena County.
    Congress responded in 1928 by authorizing the Army
    Corps of Engineers (the “Corps”) to carry out a “comprehen-
    sive ten-year program for the entire [Mississippi] valley,
    embodying a general bank protection scheme, channel sta-
    bilization and river regulation, all involving vast expendi-
    tures of public funds.” Sponenbarger, 
    308 U.S. at 262
    ; see
    also Flood Control Act of 1928, 
    Pub. L. No. 70-391,
     ch. 569,
    
    45 Stat. 534
    , 535, 537; First Amended Compl. ¶ 17, Board
    of Supervisors of Issaquena County v. United States, 
    160 Fed. Cl. 300
     (2022), ECF No. 9 (“Amended Complaint”).
    The program resulted in the construction of additional Mis-
    sissippi River levees.
    Case: 22-2026    Document: 32     Page: 4    Filed: 08/04/2023
    4          BOARD OF SUPERVISORS OF ISSAQUENA COUNTY v. US
    The government recognized that the improved Missis-
    sippi levees, by retaining more water in the river, led to
    more flood risk in the area between the Mississippi and Ya-
    zoo rivers known as the Yazoo Backwater Area (“Area”).
    See M. C. Tyler et al., Flood Control on the Lower Miss.
    River, H.R. Doc. No. 77-359, at 37 (1st Sess. 1941). In 1936
    Congress approved a plan to construct an additional chan-
    nel, known as the Eudora Floodway, to direct overflow from
    the Mississippi to, ultimately, the Gulf of Mexico. See 
    id. at 11, 30
    ; 33 U.S.C. § 702a-2. In 1941, however, Congress
    “abandoned” the floodway and instead funded the creation
    of a new levee system to protect the Area from backwater
    flooding. See Flood Control Act of 1941, 
    Pub. L. No. 77-228, § 3
    , 
    55 Stat. 638
    , 642–44 (codified as amended at 33 U.S.C.
    §§ 702a–702m). 1 The resulting Yazoo Backwater Project
    (“Backwater Project”) was completed in its current form in
    1978.
    The mainline levee system built up after the Great
    Flood runs parallel to the Mississippi. The Backwater Pro-
    ject extended the levees from the confluence of the Yazoo
    and Mississippi rivers for about 30 miles to the northeast,
    running parallel to the Yazoo, where another set of levees
    picks up.
    1   See also U.S. Army Corps of Eng’rs, 2020 Final
    Supplement No. 2 to the 2007 Final Supplement No. 1 to
    the 1982 Yazoo Area Pump Project Final Environmental
    Impact Statement, Appendix G (“2020 EIS Appx. G”),
    ¶¶ 2–3,    https://www.mvk.usace.army.mil/Missions/Pro-
    grams-and-Project-Management/Project-Management/Ya-
    zoo-Backwater-Project/Yazoo-Backwater-Report/FileId/30
    3749/.
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    BOARD OF SUPERVISORS OF ISSAQUENA COUNTY v. US             5
    II
    In this case, the Board alleged in its complaint that the
    government’s “design, construction, maintenance and sub-
    sequent operation” of the Backwater Project led to flooding
    of the Board’s land, which constituted a taking under the
    Fifth Amendment. Amended Compl. ¶ 6. According to the
    Board, the Backwater Project uses levees and floodgates to
    protect the Area from backwater flooding. See id. ¶¶ 19,
    22. Before the Backwater Project was built, the Yazoo
    River played an important role in draining rainfall from
    the Area. Id. ¶ 18. “The levees constructed as part of the
    Yazoo Backwater Project altered and cut off this natural
    drainage in order to protect the area from flooding during
    high flood stages along the Mississippi and Yazoo Rivers
    and the resulting backwater inundation that occurred.” Id.
    To prevent rainfall from accumulating behind the levees,
    the Backwater Project uses the floodgates at the Steele
    Bayou Control Structure to allow water to drain out of the
    Area. See id. ¶¶ 19, 22. When the water is high on the
    Mississippi and Yazoo rivers, however, the floodgates
    “must remain closed to prevent backwater flooding,” and
    “any additional precipitation that falls within the 4,093
    square mile drainage area becomes trapped behind the Ya-
    zoo Backwater levee system and unable to drain.” Id. ¶ 19.
    So if there is both backwater flooding from the Missis-
    sippi and extensive rainfall inside the Area between the
    mainline and Backwater Project levees, “the Yazoo Basin
    essentially becomes a bathtub with no effective drainage
    mechanism,” and there is nowhere for the water in the
    Area to go except onto dry land. Id. ¶ 20. To address that
    possibility, after building the levees and floodgates the
    Corps planned to construct a pump system to remove ex-
    cess water from the Area. See id. ¶ 19. The Corps never
    built the pumps. See id.
    From late 2018 through the summer of 2019, the Mis-
    sissippi flooded and heavy rainfall fell in the Area. See id.
    ¶¶ 22–23. The Corps kept the Steele Bayou Control
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    6          BOARD OF SUPERVISORS OF ISSAQUENA COUNTY v. US
    Structure gates closed for months to keep out the floodwa-
    ters from the Mississippi. See id. ¶ 22. The rainwater was
    trapped behind the levees, with “no outlet through which
    to drain into the Mississippi River, Yazoo River, or any-
    where else,” and inundated approximately 550,000 acres in
    the Area by May 2019. Id. ¶¶ 22–23. “Approximately 687
    residential homes and hundreds of additional structures
    were damaged or destroyed by the floodwaters,” and
    “roads, bridges, culverts and other governmental infra-
    structure within Issaquena County” were flooded. Id.
    ¶¶ 23–24. The flooding also damaged “roadbeds, ditches,
    levees, and other drainage structures” in the county, forced
    the local government to take emergency actions to keep its
    transportation infrastructure working, and resulted “in a
    severe reduction of the [county’s] tax revenue.” Id. ¶ 24.
    III
    On June 1, 2021, the Board sued the United States in
    the Claims Court, asserting that the “affirmative acts or
    inactions of the U.S. Army Corps of Engineers . . . resulted
    in an unlawful taking of [the Board’s] lands under the Fifth
    Amendment of the United States Constitution.” Original
    Complaint ¶ 3, Board of Supervisors of Issaquena County,
    
    160 Fed. Cl. 300
    , ECF No. 1. The Board amended its com-
    plaint in October 2021 to add more detail about the damage
    it alleged it had suffered as a result of the taking. See
    Amended Compl. ¶¶ 25–26. According to the Board, it
    amended its complaint in part because the government
    wanted the Board to list all the roads, culverts, and bridges
    that were allegedly destroyed by the flooding. Oral Arg. at
    34:07–28.
    The United States moved to dismiss the case for failure
    to state a claim, and the Claims Court granted the motion.
    First, the Claims Court found that the Board alleged that
    government inaction—failure to install the pumps and
    build the Eudora Floodway—caused flooding in the Area.
    Relying on the Supreme Court’s decision in Sponenbarger
    and our decision in St. Bernard Parish Gov’t v. United
    Case: 22-2026    Document: 32      Page: 7    Filed: 08/04/2023
    BOARD OF SUPERVISORS OF ISSAQUENA COUNTY v. US             7
    States, 
    887 F.3d 1354
     (Fed. Cir. 2018), the court held that
    government inaction cannot be the basis of a takings claim.
    See J.A. 4–6. Second, the Claims Court found that the
    Board alleged that government action—building the Back-
    water Project and shutting the Steele Bayou Control Struc-
    ture gates—caused flooding. See J.A. 6–7. But because the
    Board had not alleged that the government caused worse
    flooding than that which would have occurred in the ab-
    sence of government action designed to prevent flooding,
    the Board had not adequately pled a takings claim. See 
    id.
    The Board appeals.      We have jurisdiction under 
    28 U.S.C. § 1295
    (a)(3).
    DISCUSSION
    I
    We review dismissals by the Claims Court for failure
    to state a claim de novo and “must presume that the facts
    are as alleged in the complaint, and make all reasonable
    inferences in favor of the plaintiff.” Cary v. United States,
    
    552 F.3d 1373
    , 1376 (Fed. Cir. 2009). To survive a motion
    to dismiss, “the complaint must contain ‘sufficient factual
    matter, accepted as true, to state a claim to relief that is
    plausible on its face.’” A & D Auto Sales, 
    748 F.3d at 1157
    (quoting Ashcroft v. Iqbal, 
    556 U.S. 662
    , 678 (2009) (sec-
    ondary quotation marks and citation omitted)).
    The Takings Clause guarantees that the government
    will not take private property “for public use, without just
    compensation.” U.S. Const. amend. V, cl. 4. The Supreme
    Court has long held that “government-induced flooding can
    constitute a taking.” Arkansas Game & Fish Comm’n v.
    United States, 
    568 U.S. 23
    , 32 (2012) (citing Pumpelly v.
    Green Bay Co., 
    80 U.S. 166
     (1871) and United States v.
    Cress, 
    243 U.S. 316
     (1917)); see also Cedar Point Nursery v.
    Hassid, 
    141 S. Ct. 2063
    , 2071 (2021).
    Case: 22-2026    Document: 32      Page: 8    Filed: 08/04/2023
    8          BOARD OF SUPERVISORS OF ISSAQUENA COUNTY v. US
    II
    On appeal, the Board has suggested three theories of
    recovery. The first theory does not state a takings claim,
    and the second theory was not adequately pled. The third
    theory is also not adequately pled in its present form, but
    we conclude a potential amendment might clarify the com-
    plaint so that it adequately states a claim.
    First, the Board alleged that the flooding at issue was
    caused by the government’s failure to build pumps in the
    Backwater Project, or to construct an alternative drainage
    system. See, e.g., Amended Compl. ¶¶ 19, 21, 26. Those
    allegations cannot state takings claims. Throughout its
    amended complaint the Board referred to both the govern-
    ment’s “affirmative acts or inactions” as the source of the
    alleged taking, see 
    id. ¶¶ 3, 6, 26
    , and asserted that
    “[b]ecause the pumps were never completed, an estimated
    687 homes were flooded during the Yazoo Backwater Flood
    of 2019,” 
    id. ¶ 21
    . But as we have held, “[t]akings liability
    must be premised on affirmative government acts.” St.
    Bernard Parish, 
    887 F.3d at 1362
    ; see also Oral Arg. at
    11:59–12:26 (Board counsel agreeing with the court that
    “[f]ailure to put the pumps in doesn’t state a takings
    claim”). The government’s failure to install pumps or to
    construct an additional floodway cannot result in takings
    liability.
    Second, the Board suggests on appeal that the original
    government projects to shore up the Mississippi levee sys-
    tem after the Great Flood—built before the Backwater Pro-
    ject—were “expected [to] increase flood heights” on the
    Mississippi, requiring “additional flood protection for the
    Yazoo Backwater Area.” Appellant’s Br. 5 (internal quota-
    tion marks and citation omitted). The Board in its com-
    plaint made no claim based on a theory involving the flood
    control measures on the Mississippi undertaken almost a
    century ago. Indeed, the Board’s claim for relief rested en-
    tirely on the Corps’ actions vis-à-vis the Backwater Pro-
    ject’s construction and operation, rather than any earlier
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    BOARD OF SUPERVISORS OF ISSAQUENA COUNTY v. US             9
    government actions. See Amended Compl. ¶¶ 29–30; see
    also Appellant’s Br. 3 (summarizing the Board’s allegations
    as relating solely to the Backwater Project). The only
    claims the Board even attempted to state involved govern-
    ment actions beginning no earlier than 1941.
    Third, the Board alleged that the Corps’ construction
    and operation of the Backwater Project led to flood damage.
    See Amended Compl. ¶¶ 6, 19–23, 27, 29–30. But the
    Board in its complaint never plausibly explained how the
    Backwater Project, which indisputably protects the Area
    from backwater flooding, see id. ¶ 18, led to worse flooding
    than would have occurred in its absence. “To survive a mo-
    tion to dismiss, a complaint must contain sufficient factual
    matter, accepted as true, to ‘state a claim to relief that is
    plausible on its face.’” Iqbal, 556 U.S. at 678 (quoting Bell
    Atl. Corp. v. Twombly, 
    550 U.S. 544
    , 570 (2007)). A plain-
    tiff must therefore present “factual content that allows the
    court to draw the reasonable inference that the defendant
    is liable for the misconduct alleged.” Id.; see also Bot M8
    LLC v. Sony Corp. of Am., 
    4 F.4th 1342
    , 1352 (Fed. Cir.
    2021).
    As we held in St. Bernard Parish, the crucial causality
    question in cases like this is whether “the flood damage
    that actually occurred” was worse than “the flood damage
    that would have occurred if there had been no government
    action at all.” St. Bernard Parish, 
    887 F.3d at 1363
    . That
    analysis “must consider the impact of the entirety of gov-
    ernment actions that address the relevant risk” by as-
    sessing whether the plaintiff’s damage was greater than it
    would have been if the government had not acted to “pre-
    vent[] the same type of injury on the same property where
    the damage occurred.” 
    Id. at 1364, 1366
    . 2 The Board’s
    2   See also Arkansas Game & Fish Comm’n v. United
    States, 
    736 F.3d 1364
    , 1372 n.2 (Fed. Cir. 2013) (holding
    that “the proper comparison” for causation analysis was
    Case: 22-2026    Document: 32     Page: 10    Filed: 08/04/2023
    10         BOARD OF SUPERVISORS OF ISSAQUENA COUNTY v. US
    allegations here do not currently allow us to draw the rea-
    sonable inference that the United States is liable for such
    but-for damage.
    As discussed above, the Backwater Project is a series of
    levees and floodgates that shield the Area from backwater
    flooding from the Yazoo river. As shown in the Corps-pro-
    duced map below, of which we take judicial notice, the
    mainline levees generally guard the Area against flooding
    from the Mississippi river to the west and the Backwater
    Project generally blocks flooding from the south and east. 3
    The Corps allows water to drain out of the leveed Area by
    opening the Steele Bayou Control Structure gates when
    water on the landside is at a minimum height and higher
    than the water on the riverside. When water is higher
    “between the flooding that occurred prior to the construc-
    tion of [the government dam that plaintiff argued led to
    flooding] and the flooding that occurred during [the time of
    the asserted taking]”); Sponenbarger, 
    308 U.S. at
    266–67
    (“[I]f governmental activities inflict slight damage upon
    land in one respect and actually confer great benefits when
    measured in the whole, to compensate the landowner fur-
    ther would be to grant him a special bounty.”).
    3   The map is reproduced, as annotated by the court
    to circle the location of the Steele Bayou Control Structure,
    from U.S. Army Corps of Engineers, Final Supp. No. 1 to
    the 1982 Yazoo Area Pump Project Final Environmental
    Impact          Statement,         Appx.      4       (2007),
    https://www.mvk.usace.army.mil/Missions/Programs-and-
    Project-Management/Project-Management/Yazoo-Backwa-
    ter-Project/Yazoo-Backwater-Report/FileId/259737/,         at
    plate 4-1. Levees are marked on the map with dark lines.
    We may take judicial notice of it because it is “accurately
    and readily [discernible] from sources whose accuracy can-
    not reasonably be questioned.” Apple Inc. v. Qualcomm
    Inc., 
    992 F.3d 1378
    , 1384 (Fed. Cir. 2021) (quoting Fed. R.
    Evid. 201(b)) (alteration in original).
    Case: 22-2026    Document: 32     Page: 11    Filed: 08/04/2023
    BOARD OF SUPERVISORS OF ISSAQUENA COUNTY v. US            11
    outside than inside the levee, “the flood gates at the Steele
    Bayou [C]ontrol [S]tructure must remain closed to prevent
    backwater flooding.” Amended Compl. ¶ 19.
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    12         BOARD OF SUPERVISORS OF ISSAQUENA COUNTY v. US
    The Board does not appear to dispute that the Backwa-
    ter Project protects Issaquena County from backwater
    flooding. See Amended Compl. ¶¶ 18–19. But it neverthe-
    less avers that the Backwater Project led to flooding be-
    cause it prevented rainwater from draining out of the Area
    when the gates were closed. See Amended Compl. ¶¶ 20–
    23, 27. The Amended Complaint on its face does not plau-
    sibly allege any flooding of the Board’s land greater than
    would have taken place if the Backwater Project had not
    been built.
    To start, as the Board effectively admits, if the Back-
    water Project had not been there, the Area would almost
    certainly have been struck with backwater flooding in 2018
    and 2019. At that time, “the Mississippi River experienced
    the longest extended period of near record-high stages
    since the Great Flood of 1927,” and “the gates at the Steele
    Bayou [C]ontrol [S]tructure were forced to remain closed
    for months to prevent Mississippi River water from enter-
    ing and flooding the Yazoo Backwater Area.” 
    Id. ¶ 22
    . The
    complaint thus appears to concede that absent the Back-
    water Project, backwater flooding would have entered the
    Area. The Board has never alleged that the Backwater
    Project made Mississippi river flooding worse.
    Nor does the complaint in its present form plausibly
    explain how the construction of the Backwater Project
    could have led to worse rainwater flooding than would have
    occurred in its absence. Though the Board alleges that the
    Backwater Project prevents the Area from naturally drain-
    ing into the Mississippi and Yazoo rivers, 
    id. ¶ 18
    , it sug-
    gests that this is only a problem “when high flood stages
    along the Mississippi and Yazoo Rivers coincide with ex-
    cessive rainfall events within the Yazoo Basin,” 
    id. ¶ 20
    .
    But when the Mississippi and Yazoo rivers are high enough
    to force the gates closed, no rainwater could drain out of
    the Area with or without the Backwater Project. See 
    id. ¶¶ 19, 22
    . So the current complaint does not plausibly ex-
    plain how the Project’s existence in that scenario could
    worsen rainwater flooding.
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    BOARD OF SUPERVISORS OF ISSAQUENA COUNTY v. US               13
    For similar reasons, the Board has not explained how
    the Corps’ operation of the Backwater Project worsened
    flooding. The complaint focuses on the government’s deci-
    sion to keep the Steele Bayou Control Structure gates
    closed when the Mississippi was in flood. See 
    id. ¶¶ 22, 27
    .
    But as the Board concedes, opening the gates during that
    time would only have “exacerbated” the flooding. See Oral
    Arg. 34:44–35:03 (Board counsel conceding that the Corps
    could not “open the gate[s] in 2019 . . . when the . . . river-
    side was higher than the landside . . . because that would
    have exacerbated [the flooding in the Area]”); see also
    Amended Compl. ¶ 22.
    For the first time on appeal, the Board attempts to rem-
    edy this gap, arguing that the government is systemati-
    cally increasing flood risk by preventing the Backwater
    Area from draining when the Mississippi is not in flood.
    With sufficient factual content, such a theory might pre-
    sent a plausible allegation of but-for causation as to the
    flooding at issue. But there is no specific allegation in the
    Board’s complaint that the Backwater Project made things
    worse by blocking water from draining during non-flood pe-
    riods. See 
    id. ¶¶ 22, 27
     (blaming rainwater flooding largely
    on the government’s decision to close the floodgates, not the
    Project’s general retention of water in the Area).
    The Board also seeks to distinguish St. Bernard Parish
    on the grounds that that case was decided after trial, while
    here the Claims Court dismissed the case on the pleadings.
    But as we have held in the regulatory takings context, tak-
    ings plaintiffs must plausibly plead but-for causation to
    survive a motion to dismiss. In A & D Auto Sales, we ex-
    plained that because “there can be no regulatory taking
    without a showing of but-for decline in value, a takings
    plaintiff must . . . allege sufficient facts in its complaint to
    show what use or value its property would have had.” 
    748 F.3d at 1157
    . Likewise, there can be no physical takings
    liability without a showing of “what would have occurred if
    the government had not acted,” St. Bernard Parish, 
    887 F.3d at 1362
     (internal quotation marks and citation
    Case: 22-2026    Document: 32      Page: 14    Filed: 08/04/2023
    14         BOARD OF SUPERVISORS OF ISSAQUENA COUNTY v. US
    omitted). A takings plaintiff, whether alleging a physical
    or a regulatory taking, must allege sufficient facts in its
    complaint to show the value of its property but for the gov-
    ernment’s actions. See A & D Auto Sales, 
    748 F.3d at 1157
    ;
    see also Associated Gen. Contractors of California, Inc. v.
    California State Council of Carpenters, 
    459 U.S. 519
    , 526
    (1983) (“It is not . . . proper to assume that the [plaintiff]
    can prove facts that it has not alleged or that the defend-
    ants have violated the . . . laws in ways that have not been
    alleged.”) (quoted with approval in Twombly, 550 U.S. at
    563 n.8).
    In the alternative, the Board argues that its pleading
    meets the requirements of St. Bernard Parish. We are not
    persuaded. For example, the Board averred that once the
    Backwater Project was in place “without the pumps, the
    Yazoo Basin essentially [became] a bathtub with no effec-
    tive drainage mechanism, and the United States knew or
    should have known this type of [rainwater] flooding event
    was likely to occur.” Id. ¶ 20. The Board further alleged
    that “[r]outing the drainage of the entire Yazoo Basin to
    the Steele Bayou Control Structure, and allowing the flood-
    gate to remain closed, created a massive pool of water for
    which there is no drain.” Id. ¶ 27. To the extent these al-
    legations rest on the government’s failure to install the
    pumps, they fail to state a claim, as previously discussed.
    To the extent that the Board is alleging that the construc-
    tion of the Backwater Project caused flooding, the com-
    plaint fails to explain (or even directly allege) how the
    Project brought about a worse result than would have oc-
    curred anyway.
    The Board also suggests that even if its Amended Com-
    plaint did not adequately allege but-for causation, it has
    explained its theory of but-for causation in its appellate
    brief, relying in part on an engineering report prepared by
    the Corps for administrative purposes unrelated to this lit-
    igation. The Board also tells us that by the time it filed its
    Amended Complaint it had retained a hydrological expert
    and a civil engineer. The hydrological expert was prepared
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    BOARD OF SUPERVISORS OF ISSAQUENA COUNTY v. US             15
    to opine that flooding is of a greater depth and duration as
    a consequence of the government’s actions. See Appellant’s
    Br. 22–23. These expert reports were not submitted in the
    Claims Court, and are not part of the record.
    If the Board had articulated in its Amended Complaint
    all that it has argued to us, including its explanation of how
    the Project could have physically exacerbated flooding in
    the Area, that might have been sufficient to allege but-for
    causation. See, e.g., Appellant’s Br. 7 (“Plaintiff’s property
    has experienced flooding which is of a greater depth and
    duration than if the government had taken no action at
    all.”), 12 (“[T]he construction and operation of the Yazoo
    Backwater Project . . . has resulted in more severe and pro-
    longed flooding of Plaintiff’s lands.”); 22 (“[E]ven when the
    Steele Bayou gates are fully open, the water is unable to
    evacuate as quickly as it naturally would had the Govern-
    ment taken no action in the Yazoo Backwater Area.”). In-
    corporation of the Corps’ engineering report into the
    complaint, paired with sufficient explanation of its rele-
    vance, may likewise have pushed the Amended Complaint
    “across the line from conceivable to plausible.” Iqbal, 556
    U.S. at 680. The report states, for example: “After the sig-
    nificant rainfall in the last week of February [2019], eleva-
    tions on the Mississippi River at Vicksburg and the Steele
    Bayou riverside started to fall. However, the Steele Bayou
    flood control structure gates remained closed throughout
    March, preventing the Yazoo Backwater to drain.” 2020
    EIS Appx. G ¶ 68. Taking all reasonable inferences in fa-
    vor of the Board, the report might be read as supporting a
    finding that the government’s construction of the Steele
    Bayou Control Structure and its decision to keep its gates
    closed made the flooding worse than it would have been if
    the government had never even built the Backwater Pro-
    ject. However, the Board did not make any allegations in
    its Amended Complaint based on the report or its retained
    experts. Nor did it include even a single sentence explicitly
    making the express allegation that the flooding experi-
    enced following the government’s actions was worse than
    Case: 22-2026    Document: 32     Page: 16    Filed: 08/04/2023
    16         BOARD OF SUPERVISORS OF ISSAQUENA COUNTY v. US
    the flooding that preceded it, resulting in the Board’s dam-
    age.
    In evaluating the sufficiency of a complaint, we gener-
    ally do not consider new arguments made on appeal that
    are not included in the complaint. See Kimble v. United
    States, 
    991 F.3d 1238
    , 1244 (Fed. Cir. 2021). We will not,
    therefore, make an initial determination as to whether a
    complaint that adds some or all of what the Board has iden-
    tified to us would be sufficient to state a claim. But we are
    persuaded that the Board should have an opportunity to
    pursue such an assessment from the Claims Court in the
    first instance.
    Although the complaint failed to state a claim, in our
    discretion we think it appropriate to allow the Board to ask
    the Claims Court to consider an amended complaint that
    would explain how the construction and operation of the
    Backwater Project led to increased flooding compared to a
    world in which the Project had not been built. See Mittle-
    man v. United States, 
    104 F.3d 410
    , 417 (D.C. Cir. 1997)
    (sua sponte remanding to allow plaintiff to “refine” unclear
    portion of complaint); Garlick v. Quest Diagnostics Inc., 
    309 F. App’x 641
    , 643 (3d Cir. 2009) (“[T]he courts of appeals
    have the inherent authority sua sponte to order a district
    court to grant a plaintiff leave to amend her complaint
    where portions of the pleading are less than pellucid in
    ways that frustrate application of the relevant law.”). Alt-
    hough the Board did not seek leave from the Claims Court
    to file a second amended complaint, and did not expressly
    ask us for a remand for that purpose (until the issue came
    up at oral argument), the Board has now expressed its in-
    terest in seeking to amend. See Oral Arg. 7:39–8:40. 4
    4 Also at oral argument, the government objected to
    granting leave to amend the complaint, citing party
    presentation principles and noting that the Board failed to
    Case: 22-2026    Document: 32      Page: 17    Filed: 08/04/2023
    BOARD OF SUPERVISORS OF ISSAQUENA COUNTY v. US             17
    Ordinarily, we would not grant any relief under such
    circumstances. See Taylor v. United States, 
    959 F.3d 1081
    ,
    1091 (Fed. Cir. 2020) (finding, in takings case, no abuse of
    discretion where Claims Court did not permit amendment
    that was never requested of it and was first mentioned on
    appeal). The Claims Court did not abuse its discretion
    here, and not even the Board suggests it did. Nonetheless,
    in these unusual circumstances—where the plaintiff’s alle-
    gations in its brief on appeal may be sufficient to state a
    claim and where the government does not assert meaning-
    ful prejudice—we believe that we can appropriately exer-
    cise our discretion to provide the Board an opportunity to
    seek leave to amend one last time and attempt to state a
    plausible takings theory based on government action. See
    A & D Auto Sales, 
    748 F.3d at
    1158–59 (granting leave to
    amend where plaintiffs failed to plead economic loss while
    making clear they intended to establish loss of value);
    Brooks v. Ross, 
    578 F.3d 574
    , 580 (7th Cir. 2009) (noting
    that Federal Rules of Civil Procedure provide for “a liberal
    notice pleading regime, which is intended to ‘focus litiga-
    tion on the merits of a claim’ rather than on technicalities
    file a motion for leave to amend or ask for such relief in its
    appellate brief. See Oral Arg. at 20:04–21:13. The Board’s
    failure to seek leave appears to have been an unintentional
    forfeiture, not a deliberate waiver, and courts may sua
    sponte consider forfeited positions. See United States v.
    Campbell, 
    26 F.4th 860
    , 872 (11th Cir. 2022) (en banc) (cit-
    ing Wood v. Milyard, 
    566 U.S. 463
    , 471 & n.5 (2012)); see
    also United States v. Sineneng-Smith, 
    140 S. Ct. 1575
    , 1579
    (2020) (“There are no doubt circumstances in which a mod-
    est initiating role for a court is appropriate.”).
    We think it plain that the Board did intend to plead
    that the government’s actions in constructing and operat-
    ing the Project caused worse flooding damage than would
    otherwise have occurred. But the Board failed to ade-
    quately make these allegations in its original or amended
    complaints.
    Case: 22-2026    Document: 32      Page: 18    Filed: 08/04/2023
    18          BOARD OF SUPERVISORS OF ISSAQUENA COUNTY v. US
    that might keep plaintiffs out of court” (quoting
    Swierkiewicz v. Sorema N.A., 
    534 U.S. 506
    , 514 (2002))); 6
    Charles Alan Wright et al., Federal Practice & Procedure
    § 1473 (3d. ed., April 2023 update) (A “basic polic[y]” of the
    Federal Rules is “that pleadings are not an end in them-
    selves but are only a means to assist in the presentation of
    a case to enable it to be decided on the merits.”).
    We do not require that the Claims Court allow such
    amendment. We intend only to require the Claims Court
    to consider whether such amendment should be allowed
    under the typical standards governing amendments under
    Rule 15(a)(2) of the United States Court of Federal Claims.
    We therefore vacate the Claims Court’s dismissal and re-
    mand for proceedings consistent with this opinion. 5
    AFFIRMED IN PART, VACATED AND REMANDED
    IN PART
    COSTS
    No costs.
    5  There is an additional issue presented by the com-
    plaint here that we do not reach: whether expected tax rev-
    enue is a compensable property interest under the Takings
    Clause. See, e.g., 2 Julius L. Sackman et al., Nichols on
    Eminent Domain § 5.03[6][f][iii] (3d ed. 2023) (“A tax[ing]
    [authority] does not have a compensable interest in a prop-
    erty taken by eminent domain.” (capitalization altered));
    United States v. 6,321 Acres of Land More or Less In Suf-
    folk Cnty., 
    479 F.2d 404
    , 406 (1st Cir. 1973) (recognizing
    the “the general rule making non-compensable [under the
    Takings Clause] an expectation of taxes”); Adams v. United
    States, 
    391 F.3d 1212
    , 1225 (Fed. Cir. 2004) (declining “to
    treat a statutory right to be paid money as a legally-recog-
    nized property interest”).