Life Cycle Phases

Life Cycle Phases

The Colorado Department of Transportation (CDOT) defines the life cycles of the I-70 Mountain Corridor in five phases:

These five phases are consistent with the process that CDOT uses throughout the state to plan, design, construct, maintain, and operate its facilities. Work in each of the phases can be carried out using the 6-Step Process for decision making. Each phase has its own set of requirements and expectations, and the products developed at each phase provide inputs to the subsequent phases.