Underground Installations
- Section 408.447 - Standards for placement of utilities or pipes under state highway
- Section 408.449 - Marking and designation of underground utilities, pipes and conduits in right-of-way of highway
- Section 408.451 - Installation along highway with no curbs and gutters: Required markers
- Section 408.453 - Requirements for casing
- Section 408.457 - Copper wire required for facility without component of metallic construction
- Section 408.459 - Requirements for boreholes or pits
- Section 408.461 - Inspection and repairs of underground facilities