Iowa StatutesCHAPTER 320 - USE OF HIGHWAYS FOR SIDEWALKS, SERVICE MAINS, OR CATTLEWAYS320.1 - CONSTRUCTION OF SIDEWALKS IN CERTAIN SCHOOL DISTRICTS.320.2 - ASSESSMENT OF COSTS.320.3 - REPAIRS.320.4 - WATER AND GAS MAINS, SIDEWALKS, AND CATTLEWAYS.320.5 - TERM OF GRANT.320.6 - CONDITIONS -- DAMAGES.320.7 - FAILURE TO MAINTAIN.320.8 - PENALTY.