Versions of Illinois Compiled Statutes > 70 ILCS 860 - Forest Preserve District and Conservation District Design-Build Authorization Act on LawServer 2024 Illinois Compiled Statutes > 70 ILCS 860 – Forest Preserve District and Conservation District Design-Build Authorization Act 2023 Illinois Compiled Statutes > 70 ILCS 860 – Forest Preserve District and Conservation District Design-Build Authorization Act 2022 Illinois Compiled Statutes > 70 ILCS 860 – Forest Preserve District and Conservation District Design-Build Authorization Act 2021 Illinois Compiled Statutes > 70 ILCS 860 – Forest Preserve District and Conservation District Design-Build Authorization Act