Versions of Iowa Code 311.4 - County line road on LawServer 2024 Iowa Code 311.4 – County line road 2023 Iowa Code 311.4 – County line road 2022 Iowa Code 311.4 – County line road 2020 Iowa Code 311.4 – County line road 2018 Iowa Code 311.4 – County line road 2016 Iowa Code 311.4 – County line road 2014 Iowa Code 311.4 – County line road. 2009 Iowa Code 311.4 – County line road