Lyle E. Schneider, Paul S. Kurtz And Shirley J. Kurtz, Gene J. Peters, Sterling Tops, Inc., Robert W. Bonorden And Deann M. Bonorden, Gerald W. Petersen, Richard R. Kane And Debra K. Kane, Mark A. Doepke And Michelle L. Doepke, Gloria M. Knapp Freilinger, Rudy Busch D/b/a Rudy's Sales And Service, Paul R. Beem And Stacie L. Beem, David J. Fink And Deb Fink, Davik's Auto Body/denver Oil Company, Randall-mar ( 2010 )


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  •               IN THE SUPREME COURT OF IOWA
    No. 07–0887
    Filed May 21, 2010
    LYLE E. SCHNEIDER, PAUL S. KURTZ and
    SHIRLEY J. KURTZ, GENE J. PETERS,
    STERLING TOPS, INC., ROBERT W. BONORDEN
    and DEANN M. BONORDEN, GERALD W. PETERSEN,
    RICHARD R. KANE and DEBRA K. KANE,
    MARK A. DOEPKE and MICHELLE L. DOEPKE,
    GLORIA M. KNAPP FREILINGER, RUDY BUSCH
    d/b/a RUDY’S SALES AND SERVICE, PAUL R. BEEM
    and STACIE L. BEEM, DAVID J. FINK and DEB FINK,
    DAVIK'S AUTO BODY/DENVER OIL COMPANY,
    RANDALL-MARTA BENDER d/b/a BENDER
    ENTERPRISES, INC., TOMMIE BRETTMANN
    d/b/a DENVER MILL, BYRON D. DAVIS and JANE P.
    DAVIS, DAVIS FARM AND AUTO, INC., WILLIAM
    BUSS d/b/a DENVER CONSTRUCTION, INC., and
    MIKE WOOLDRIK, as Executor of the Estate of
    ROBERT WOOLDRIK,
    Appellants,
    vs.
    STATE OF IOWA,
    Appellee.
    On review from the Iowa Court of Appeals.
    Appeal from the Iowa District Court for Bremer County, Stephen P.
    Carroll, Judge.
    Landowners appeal from a summary judgment in an action against
    the State alleging negligent design and construction of a highway project
    in a floodway.      DECISION OF COURT OF APPEALS VACATED;
    DISTRICT COURT JUDGMENT AFFIRMED IN PART, REVERSED IN
    PART, AND REMANDED.
    2
    John J. Hines of Dutton, Braun, Staack, Hellman, P.L.C.,
    Waterloo, for appellants.
    Thomas J. Miller, Attorney General, and Robin G. Formaker and
    Richard E. Mull, Assistant Attorneys General, for appellee.
    3
    HECHT, Justice.
    Landowners sued the State of Iowa alleging its negligent design
    and construction of a highway project caused a flood and resulting
    damages. The State moved for summary judgment asserting statutory
    immunities.      The district court granted the motion, the landowners
    appealed, and the court of appeals affirmed.              On further review, we
    conclude the defense of immunity for discretionary functions is not
    available to the State under the circumstances of this case. We vacate
    the decision of the court of appeals, affirm in part and reverse in part the
    district court’s judgment, and remand for further proceedings.
    I. Factual Background and Proceedings.
    When viewed in the light most favorable to the plaintiffs, the
    summary judgment record could establish the following facts. In the late
    1980s, the Iowa Department of Transportation (DOT) developed a plan to
    relocate a portion of Highway 63 to bypass the city of Denver, Iowa. The
    plan called for the construction of a four-lane divided highway along the
    west side of the city and a bridge spanning Quarter Section Run Creek, a
    stream flowing through Denver. The original construction of the bypass
    project commenced in 1993 and concluded in 1994.
    In a flood insurance study commissioned by the city in 1990, the
    creek was designated as a “regulatory floodway.”              A floodway “ ‘is the
    channel of a stream plus any adjacent flood plain areas that must be
    kept free of encroachment so that [a] 100-year flood can be carried
    without substantial increases in flood heights.’ ” 1 K & W Elec., Inc. v.
    1Iowa law prohibits the erection, use, or maintenance of a structure, dam,
    obstruction, deposit, or excavation in or on a floodway without a permit issued by the
    Iowa Department of Natural Resources (DNR). See generally Iowa Code § 455B.275
    (2009). (Because there have been no amendments to the relevant statutory provisons,
    all citations will be to the 2009 Iowa Code unless otherwise noted.) The DNR assists
    communities in developing and administering local floodplain management programs
    4
    State, 
    712 N.W.2d 107
    , 110 (Iowa 2006) (quoting 1984 Federal
    Emergency Management Agency flood insurance study). The bridge and
    related structures were designed to accommodate a 50-year flood event. 2
    The new bridge, consisting of twin structures 168 feet in length, spanned
    the creek, but not the entire floodway. The embankment constructed for
    the roadway encroached upon the floodway and impeded the drainage of
    water from it.
    In May 1999, Denver experienced an extraordinary rain event and
    resulting    flood   which    damaged       thirty-five   homes     and    thirty-four
    businesses. The intensity of the rain produced a volume of rainwater in
    the floodway consistent with the magnitude of a 250-year flood.                       A
    resource assessment and flood study undertaken by the United States
    Department of Agriculture Natural Resources Conservation Service
    concluded the embankment constructed for the bypass “cut[] off a large
    portion of the floodway,” causing water moving through it to “back up”
    during the 1999 event.            Computer models prepared for the study
    _____________________
    and coordinates the National Flood Insurance Program. See National Flood Insurance
    Program Coordination/Local Floodplain Programs, http://www.iowadnr.gov/water/
    floodplain/nfip.html. At the time the bridge and related embankment structures were
    designed, the DOT was not aware that the regulatory floodway had been designated.
    2As  the project was planned for construction just outside the city limits before
    the floodway was designated, the DOT sized the bridge to comply with a Q50 (50-year
    flood) standard. A higher Q100 (100-year flood) standard was typically used by the
    DOT when sizing bridges in flood insurance study areas and in other locations where
    the risk of high damage would be created for upstream businesses and homes. The
    State’s expert conceded the higher standard would have been utilized in the design of
    the bridge had it been designed for construction in a floodway, but noted the State did
    not learn the site had been designated as a floodway until after the bridge was built.
    The expert also acknowledged that if the State employees responsible for the design of
    the bridge had been aware the structure would be built in a floodway, applicable
    regulations would have required compliance with a Q100 standard. Under the Q100
    standard, the bridge and related structures would have been designed to achieve a no-
    rise condition on insurable structures in Denver upstream from the bypass for a 100-
    year flood. In other words, the bridge would have been designed so that it would not
    cause insurable structures upstream from the bridge to experience an increase in the
    depth of floodwaters as a consequence of a 100-year flood event.
    5
    illustrated that the bypass structures increased the depth of the 1999
    flood waters by as much as three feet in certain areas of the city and
    caused flooding in a part of the city that would not have flooded but for
    the construction of the bypass.            The models also produced evidence
    tending to prove the bridge and related structures would have caused
    flood waters in a 100-year flood event to rise higher in some parts of
    Denver upstream from the bridge than would have been the case had the
    bridge and related structures not been placed in the floodway.
    In the aftermath of the flood, the city formed a task force to explore
    potential remedial measures to diminish the risk of future flooding.
    Following a lengthy period of study and investigation of a range of
    options, the State chose to redesign and extend the bridge.                          The
    reconstruction of the bridge and the reconfiguration of the floodway in
    2004 and 2005 modified the elevation of the floodway along the creek
    and substantially enhanced the capacity of the floodway to convey water
    away from the city. The summary judgment record includes testimony
    and an affidavit of the State’s expert tending to prove the reconstruction
    brought the bridge and related structures 3 into substantial compliance
    with the Q100 standard. 4
    Owners of several properties damaged in the 1999 flood filed suit
    alleging the State negligently designed and constructed the bridge. The
    landowners alleged the State breached a common-law duty by designing
    3For ease of reference, we will refer to the bridge and related structures,
    including the original twin structures spanning the creek, the embankment, the
    reconstructed bridge, and the reconfiguration of the floodway, as “the bridge.”
    4The  expert acknowledged that even after the reconstruction of the bridge and
    reconfiguration of the elevation in parts of the floodway, the State did not achieve a no-
    rise condition for all upstream properties in Denver. However, the State received DNR
    approval for the reconstruction because the State obtained easements from the owners
    of some of those properties and there are no insurable structures on the others.
    6
    and constructing the bridge in a manner that obstructed the floodway
    and increased the depth of floodwater during the 1999 event. 5                    The
    landowners further alleged the State breached a duty derived from Iowa
    Code section 314.7 proscribing disruption of the natural drainage of
    surface water when improving or maintaining a highway.                   The State’s
    answer asserted immunity from liability under Iowa Code section 669.14
    because the design and construction of the project were discretionary
    functions and because the project conformed with a generally recognized
    engineering or safety standard, criteria, or design theory prevailing at the
    time of its design and construction or reconstruction.
    The State filed a motion for summary judgment asserting the
    immunity defenses. The district court granted the motion, reasoning the
    State is immune under Iowa Code section 669.14(1) from liability to the
    plaintiffs because the design and construction of the bypass were
    discretionary    functions     based    on    “considerable     planning”     and    a
    “balancing of governmental priorities and competing governmental
    demands.” The district court further concluded the State was entitled to
    summary judgment on the plaintiffs’ claims for damages for permanent
    devaluation of their properties under section 669.14(8) because the
    bridge was constructed or reconstructed in accordance with a generally
    recognized engineering or design theory. The summary judgment ruling
    also rejected the plaintiffs’ legal theory that the construction of the bridge
    diverted the natural flow of water and caused the 1999 flooding in
    5The  landowners claim regulations controlling the construction of floodway
    obstructions at the time the by-pass project was designed and constructed prescribed a
    pertinent standard of care. This standard dictated that obstructions of a floodway must
    not increase the floodwaters for upstream structures in the event of a 100-year flood
    and is described in the summary judgment papers as a “no-rise standard.” The extent
    to which the original by-pass project deviated from this standard is disputed by the
    parties.
    7
    violation of Iowa Code section 314.7.         The landowners appealed,
    contending the district court erred in granting summary judgment in
    favor of the State based on the discretionary immunity and state-of-the-
    art defenses. The landowners further challenged on appeal the district
    court’s determination that they failed to engender a fact question in the
    summary judgment record as to whether the State violated Iowa Code
    section 314.7 in the course of the design and construction of the bridge.
    We transferred the appeal to the court of appeals.
    The court of appeals affirmed the summary judgment in favor of
    the State on the ground that the plaintiffs’ claims are barred because
    they are based upon the negligent exercise or performance of a
    discretionary function or duty by a State agency or employee under
    section 669.14(1). We granted further review to determine whether the
    State’s immunity for discretionary functions is applicable under the
    circumstances presented in this case.
    II. Scope of Review.
    We review for correction of errors at law a district court’s ruling
    granting a motion for summary judgment. Kolarik v. Cory Int’l Corp., 
    721 N.W.2d 159
    , 162 (Iowa 2006).       We examine the record to determine
    whether a material fact is in dispute. Robinson v. Fremont County, 
    744 N.W.2d 323
    , 325 (Iowa 2008). In performing this function, we “ ‘view the
    entire record in a light most favorable to the nonmoving party [and]
    indulge in every legitimate inference that the evidence will bear’ in favor
    of the nonmoving party.”     Cubit v. Mahaska County, 
    677 N.W.2d 777
    ,
    779 (Iowa 2004) (alteration in original) (quoting Crippen v. City of Cedar
    Rapids, 
    618 N.W.2d 562
    , 565 (Iowa 2000)). We also review for correction
    of errors at law the district court’s interpretation of the applicable
    statutes. In re Inspection of Titan Tire, 
    637 N.W.2d 115
    , 128 (Iowa 2001).
    8
    III. Discussion.
    A. Discretionary Function Immunity. The Iowa Tort Claims Act
    prescribes procedures governing tort claims against the State for the
    negligent acts of its officers, agents, or employees. See generally Iowa
    Code ch. 669. The Act preserves, by excepting certain claims from its
    scope, aspects of sovereign immunity. Among the excepted claims are
    those “based upon the exercise or performance or the failure to exercise
    or perform a discretionary function or duty on the part of a state agency
    or an employee of the state, whether or not the discretion be abused.”
    
    Iowa Code § 669.14
    (1). As the immunity for discretionary functions in
    our statute has its genesis in the federal tort claims act, we have been
    guided by federal decisions applying the doctrine. Shelton v. State, 
    644 N.W.2d 27
    , 30 (Iowa 2002).
    We apply a two-part test in determining whether section 669.14(1)
    shields the State from liability. 
    Id. at 29
    . First, the State must show
    there was an element of judgment or discretion involved in the design or
    construction of the bypass project. Graber v. City of Ankeny, 
    656 N.W.2d 157
    , 161 (Iowa 2003).    If judgment or discretion was involved in the
    design or construction of the project, the State must show the judgment
    or discretion was of the type the legislature intended to shield from
    liability. Messerschmidt v. City of Sioux City, 
    654 N.W.2d 879
    , 881 (Iowa
    2002).
    The State asserts decisions requiring judgment and discretion were
    made throughout the duration of the project, beginning at the time the
    bypass was first conceived. Hearings were held to solicit public input as
    to whether the project should be undertaken in view of its expected cost
    and its relative priority in relationship to other projects throughout
    Iowa’s statewide primary highway system.      Numerous other decisions
    9
    were required in the design and planning of the project, including most
    notably the route the roadway should take around the city and the
    proper design and location of the bridge over the creek. The plaintiffs
    contend, however, that the discretionary function doctrine has no
    application in this case because the State had no discretion or choice in
    determining whether the bridge could be designed and built to encroach
    on the floodway. We agree.
    Iowa Code section 455B.275(1) prohibits all floodway obstructions
    or encroachments, including fill, new construction, or any development
    within a floodway without the approval of the DNR.                   This statutory
    prohibition of floodway encroachments advances the General Assembly’s
    policy determination that “the protection of life and property from floods
    . . . is of paramount importance to the welfare and prosperity of the
    people of the state.” Iowa Code § 455B.262(1). In furtherance of this
    broad statement of policy, certain activities are expressly prohibited in a
    floodway or flood plain. A civil penalty of $500 per day may be imposed
    against those who erect, use, or maintain structures adversely affecting
    the efficiency, or unduly restricting the capacity, of a floodway without
    the permission of the DNR. Iowa Code §§ 455B.275(1), 455B.279(2).
    The State asserts, however, the plaintiffs did not cite chapter 455B
    in the district court proceedings and failed to preserve error on this
    point.    While the plaintiffs concede they did not cite the provisions of
    chapter 455B in support of their resistance to the State’s motion for
    summary judgment, they did cite and attach to their resistance an
    analogous      federal   regulation,   
    44 C.F.R. § 60.3
    (d)(3)   (prohibiting
    encroachments        including     fill,       new      construction,     substantial
    improvements and other development within the adopted regulatory
    10
    floodway   unless      it   has   been   demonstrated   that   the   proposed
    encroachment would not result in any increase in flood levels).
    We are persuaded the plaintiffs preserved this subject for appellate
    review by citing the corollary federal regulation and by including in the
    summary judgment record an email message authored by the State’s
    expert acknowledging that “[t]he construction of the bypass in 1993
    encroached upon the established floodway,” “increased the 100 year
    flood elevations both upstream and downstream of the bypass project,”
    and constituted “a violation of FEMA and DNR regulations.” The district
    court’s conclusion that the design and construction of the bypass within
    the floodway constituted discretionary functions supporting a claim of
    immunity under section 669.14(1) implicitly rejected the plaintiffs’ claim
    that the State had no discretion to design and build the bridge in the
    floodway in violation of state and federal law.     Having determined the
    issue was preserved for our review, we proceed to a discussion of the
    merits of the issue.
    Given the clear statutory and regulatory prohibitions against the
    creation of floodway encroachments causing increased risk of loss to
    upstream properties in the event of a 100-year flood, we conclude the
    discretionary function defense has no application in this case.          The
    State’s employees could not choose to ignore these prohibitions, and they
    therefore did not have available to them a choice to design and build
    encroaching, noncompliant structures in the floodway. As there was no
    such choice available, the employees of the State who designed and built
    the bridge did not perform discretionary functions for which section
    669.14(1) would offer immunity. See United States v. Gaubert, 
    499 U.S. 315
    , 324, 
    111 S. Ct. 1267
    , 1274, 
    113 L. Ed. 2d 335
    , 347 (1991) (stating
    the discretionary function doctrine offers the government no shelter from
    11
    liability arising from its employee’s violation of a “mandatory regulation”);
    Berkovitz v. United States, 
    486 U.S. 531
    , 536, 
    108 S. Ct. 1954
    , 1958–59,
    
    100 L. Ed. 2d 531
    , 540–41 (1988) (stating “the discretionary function
    exception will not apply when a . . . statute, regulation, or policy
    specifically prescribes a course of action for [a government] employee to
    follow”).
    Accordingly, we conclude the district court erred in concluding the
    State is entitled to immunity under section 669.14(1).
    B. Design and Construction Immunity. Having concluded the
    discretionary function defense under Iowa Code section 669.14(1) is not
    available to the State under the circumstances of this case, we next
    consider whether the district court erred in concluding an alternative
    statutory immunity is available to the State in this case.       The State’s
    sovereign immunity is also preserved for
    [a]ny claim based upon or arising out of a claim of negligent
    design or specification, negligent adoption of design or
    specification, or negligent construction or reconstruction of a
    highway . . . that was constructed or reconstructed in
    accordance with a generally recognized engineering or safety
    standard, criteria, or design theory in existence at the time of
    the construction or reconstruction.
    
    Iowa Code § 669.14
    (8).        This statute establishes a state-of-the-art
    defense against ordinary negligence claims arising from the design and
    construction of highways and roads. K & W Elec., 
    712 N.W.2d at 113
    .
    The State supported its motion for summary judgment in this case
    with the affidavit of an engineer whose responsibility includes the design
    of the State’s bridges. The affiant opined the State’s reconstruction of
    the bridge and floodway elevations after the 1999 flood (1) eliminated the
    risk that the plaintiffs will experience future flooding as a consequence of
    a flood having a magnitude not greater than a 100-year flood and (2) was
    accomplished in accordance with generally accepted engineering criteria
    12
    existing at the time of the reconstruction.              The plaintiffs offered no
    evidence rebutting these expert opinions, and the district court granted
    the State’s motion “on the issue of permanent devaluation” of the
    plaintiffs’ properties. 6
    The plaintiffs contend on appeal the State is not entitled to
    immunity under section 669.14(8) because the bridge still encroaches on
    the floodway even after the reconstruction.             This contention, standing
    alone, is insufficient to preclude summary judgment because the
    uncontroverted        summary        judgment       record      demonstrates        the
    reconstruction design satisfied the Q100 design standard and achieved
    the approval of the DNR. The plaintiffs failed at the summary judgment
    stage to produce evidence tending to prove the reconstructed bridge does
    not comply with the Q100 standard, the generally accepted engineering
    standard in existence at the time of the reconstruction.
    Whether the plaintiffs’ negligence claims are based on an alleged
    breach of a common-law duty to exercise reasonable care in the design
    and construction of the bridge, or an alleged breach of Iowa Code section
    455B.275(1) and related state or federal regulations proscribing the
    erection of obstructions in floodways, they are based upon or arise out of
    the design or construction of a highway.             The state-of-the-art defense
    6We interpret this aspect of the district court’s summary judgment ruling as an
    adjudication of only part of the plaintiffs’ damage claims. The ruling rejected the
    plaintiffs’ claims that the State’s negligence caused a “permanent devaluation” of their
    real estate, concluding the uncontroverted summary judgment record established that
    the reconstruction of the bridge eliminated the risk of future flood damage in the event
    of a 100-year flood and thus brought the project in compliance with the engineering
    standard prevailing at the time of the reconstruction. The summary judgment ruling
    did not, however, adjudicate as a matter of law the plaintiffs’ claims for other damages
    alleged by the plaintiffs to have been caused by the State’s negligence, if any, in the
    original design and construction of the project. The State’s defense under section
    669.14(8) will not defeat the plaintiffs’ claims for damages suffered by the plaintiffs
    before the reconstruction of the bridge if the plaintiffs prove (1) the State breached a
    common law or statutory duty and (2) such damages are within the relevant scope of
    liability.
    13
    applies to all such claims.         We therefore find no error in the district
    court’s summary judgment determination that the plaintiffs’ claims for
    permanent devaluation are barred by Iowa Code section 669.14(8).
    Accordingly, we affirm the district court’s determination that the State
    established its immunity defense under section 669.14(8) against the
    “permanent devaluation” damage claims of plaintiffs who did not sell
    their properties prior to the reconstruction of the bypass bridge. 7
    C.    Liability Under Section 314.7.              Iowa Code section 314.7
    provides in relevant part:
    Officers, employees, and contractors in charge of
    improvement or maintenance work on any highway shall not
    . . . turn the natural drainage of the surface water to the
    injury of adjoining owners. It shall be their duty to use strict
    diligence in draining the surface water from the public road
    in its natural channel. To this end they may enter upon the
    adjoining lands for the purpose of removing from such
    natural channel obstructions that impede the flow of such
    water.
    
    Iowa Code § 314.7
    .
    The plaintiffs’ petition alleged in part that the State’s “highway
    construction activities were carried out in violation of section 314.7 in
    that the construction changed the natural drainage of the surface water”
    and damaged the plaintiffs’ property.              The State requested summary
    judgment as to this legal theory, positing the plaintiffs produced no
    evidence supporting a finding that the flood waters affecting their
    7A  fact issue remains for trial on the question of whether the original design and
    construction of the bridge as a floodway encroachment violated prevailing engineering
    standards in existence at the time of the original design and construction of the project.
    As we have noted, our affirmance of the district court’s ruling as to the State’s
    immunity for permanent devaluation of the plaintiffs’ properties under section 669.14(8)
    preserves for trial the plaintiffs’ claims for other pre-reconstruction damages which were
    not adjudicated by the summary judgment ruling. The plaintiffs’ appeal brief asserts
    two of the plaintiffs sold their properties and suffered the economic loss occasioned by
    the flood-related dimunition in value prior to the reconstruction. Our decision also
    leaves for determination by the fact finder the question of whether these two plaintiffs
    suffered such a loss within the scope of liability when they sold their properties.
    14
    properties were diverted from the surface of the road. The district court
    concluded our decision in Connolly v. Dallas County, 
    465 N.W.2d 875
    (Iowa 1991), permitted a finding of liability against the State under
    section 314.7 only if the flood water was diverted from the surface of the
    roadway to the plaintiffs’ property.    Finding no evidence in the record
    supporting a determination that the floodwater affecting the plaintiffs’
    property was diverted from the roadway, the district court granted
    summary judgment in favor of the State on this issue.
    The plaintiffs contend the district court’s flawed understanding of
    Connelly led to an incorrect interpretation of section 314.7. We agree.
    The plaintiffs in Connelly sued Dallas County, alleging the removal of a
    bridge abutment and the widening of a creek channel in the course of the
    reconstruction of a secondary highway caused flood damage.            
    465 N.W.2d at 876
    . The plaintiffs in that case based their claim for damages
    on an alleged violation of the common-law duty owed by an upstream or
    dominant riparian owner to a downstream or servient owner to protect
    the status quo. 
    Id. at 877
    . Although the plaintiffs in Connelly did not
    allege the county had violated section 314.7 in diverting flood water to
    their property, we made passing reference to the statute in a footnote as
    we distinguished Rosendahl Levy v. Iowa State Highway Commission,
    
    171 N.W.2d 530
     (Iowa 1969), a case in which the statute was applied.
    Id. at n.2. The passing reference suggested in dicta that section 314.7
    “regulated diversion of water from roadways” and noted there was no
    evidence in Connelly that the flooding “was in any way due to waters
    diverted from a public roadway.” Id. The clear language of section 314.7
    imposes on those who undertake highway improvements a duty to use
    strict diligence in draining surface water from the road to its natural
    channel in conformity with general riparian principles. The statute also
    15
    separately and more broadly proscribes “turn[ing] the natural drainage of
    the surface water to the injury of adjoining owners” as they improve or
    maintain any highway.      This proscription clearly addresses more than
    water from the surface of the roadway and mandates that road
    improvement projects shall not divert the natural drainage of water in
    the vicinity of a road improvement project.      We therefore disavow the
    dicta in Connelly insofar as it may be interpreted to confine the reach of
    section 314.7 to only the diversion of water from the surface of a
    roadway.
    The plaintiffs’ failure to present evidence that they were damaged
    exclusively or even primarily by water diverted from the surface of the
    roadway does not vitiate their broader claim under section 314.7. The
    summary judgment record viewed in the light most favorable to the
    plaintiffs includes evidence tending to prove the construction of the
    bridge obstructed the natural flow of water through the floodway and
    thus changed the natural drainage of surface waters to the detriment of
    upstream landowners. Accordingly, the district court erred in concluding
    the plaintiffs failed to engender a fact question as to the State’s liability
    under section 314.7.
    Although we have concluded a fact question exists as to whether
    the State violated section 314.7, the practical significance of this
    determination in the final analysis may be slight. The State contends the
    defense under Iowa Code section 669.14(8) is available against
    negligence claims based on violations of a statutory duty derived from
    section 314.7.    We agree.     See K & W Elec., 
    712 N.W.2d at 115
    .
    Accordingly, the district court’s ruling granting the State’s summary
    judgment motion on the plaintiffs’ other negligence theories applies
    16
    coextensively to their claims for permanent property devaluation based
    on the alleged violation of section 314.7.
    IV. Conclusion.
    We conclude the district court erred in granting summary
    judgment in favor of the State based on the defense of discretionary
    immunity under section 669.14(1).         The district court also erred in
    concluding the plaintiffs’ claim based on the alleged violation of section
    314.7 must fail as a matter of law because the plaintiffs failed to present
    evidence supporting a finding that the flood water was diverted to their
    properties from the surface of the roadway. We affirm the district court’s
    summary judgment determination that the negligence claims for
    permanent devaluation of the plaintiffs’ properties based on alleged
    violations of common-law and statutory duties are barred by the state-of-
    the-art defense under Iowa Code section 669.14(8) because the
    uncontroverted record establishes the bridge was reconstructed in
    compliance with an engineering standard prevailing at the time of the
    reconstruction. Our affirmance of the summary judgment ruling leaves
    standing the plaintiffs’ claims for other damages sustained prior to the
    reconstruction of the bridge.    We therefore vacate the decision of the
    court of appeals, affirm in part and reverse in part the judgment of the
    district court, and remand for further proceedings consistent with this
    decision.
    DECISION OF COURT OF APPEALS VACATED; DISTRICT
    COURT JUDGMENT AFFIRMED IN PART, REVERSED IN PART, AND
    REMANDED.