HMI, Hamilton Manufacturing Inc. v. City of Twin Falls, 52620

Christy Hamilton owns three adjoining parcels in Twin Falls where HMI Manufacturing operates, and the City’s underground water and sewer lines cross those parcels. 1
The dispute centers on a West Parcel water line installed in 1918 and repeatedly repaired after breaks in 1984, 1986, 2000, and 2018. 2
The East Parcel sewer line traces to a 1947 express easement in Peterman 1 and a later relocation agreement tied to construction of the Recycle Center. 3
HMI sued for trespass, nuisance, overburdening, and negligence after the 2018 water-line break, and the City defended by asserting express and prescriptive easements. 4
After a bench trial, the district court dismissed HMI’s claims and held the City had an express sewer easement or prescriptive alternative, plus a prescriptive water easement. 5

Issue	Plaintiff's Argument	Defendant's Argument	Held
Did Peterman 1 burden the East Parcel? 6	HMI said Peterman 1 burdened only Tax #294, not the East Parcel.	City said the description included the East Parcel within the main parcel.	The East Parcel fell within Peterman 1’s burdened property. 7
Was the sewer easement location fixed by installation despite missing master map? 8	HMI said the missing master map created latent ambiguity.	City said the easement was a blanket easement fixed by the installed sewer line.	The missing map did not defeat the easement; installation fixed its location. 9
Did the City establish a prescriptive water easement on the West Parcel? 10	HMI argued use was presumptively permissive because the parcel was wild and unimproved.	City argued it clearly manifested adverse use and satisfied prescription elements.	Substantial evidence supported a prescriptive easement. 11
Did the district court need to specify easement dimensions in its judgment? 12	HMI argued the judgment lacked adequate location descriptions.	City said no easement was being adjudicated in the judgment.	No; the court was not required to specify easement parameters. 13

Chester v. Wild Idaho Adventures RV Park, LLC, 519 P.3d 1152 (Idaho 2022) (bench-trial appellate review and substantial-evidence standard 14)
Burns Concrete, Inc. v. Teton County, 483 P.3d 985 (Idaho 2020) (bench-trial findings reviewed for evidentiary support 15)
E. Side Highway Dist. v. Delavan, 470 P.3d 1134 (Idaho 2019) (instrument interpretation depends on whether it is ambiguous 16)
Cook v. Van Orden, 537 P.3d 1230 (Idaho 2023) (elements and presumptions governing prescriptive easements 17)
Backman v. Lawrence, 210 P.3d 75 (Idaho 2009) (prescriptive easement presumptions may be used if elements are analyzed 18)
Baker v. KAL, LLC, 415 P.3d 939 (Idaho 2018) (valid express easement must identify land and express intent 19)
Manning v. Campbell, 268 P.3d 1184 (Idaho 2012) (unlocated easement terms may be fixed by later construction and use 20)
Porcello v. Estate of Porcello, 470 P.3d 1221 (Idaho 2020) (latent ambiguity must tie to the instrument itself; parol evidence may clarify incomplete agreements 21)
Beckstead v. Price, 190 P.3d 876 (Idaho 2008) (scope of prescriptive easement is fixed by prescriptive use; judgments determining easements must describe them 22)
Latvala v. Green Enters., Inc., 485 P.3d 1129 (Idaho 2021) (appellate courts do not reweigh conflicting evidence 23)