utilities.iowadot.gov - /BentonUS30/Benton US 30/2020-01-06_Benton US 30 Files for Garden/06-0306-240_E_Files_(DataFiles)/Machine_Control_Surfaces/TINs/ExistingGround/

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 1/14/2020  8:42 AM      8288056 exist_surf_06030240new.tin
 1/14/2020  8:42 AM     16923720 exist_surf_PostStage1new.tin
 1/14/2020  8:42 AM     25279188 exist_surf_PostStage2.tin