Century West conducted an environmental study to determine impacts of reconstruction and extension of RW 10-28 at Prineville Airport. Key impact areas included cultural resources, wildlife habitat, and wetlands. The study resulted in a Categorical Exclusion issued by FAA. Upon completion of the environmental work, Century West began the design of the reconstruction and widening phase of the project. A 750’ runway extension was included as a change order to the runway reconstruction project as a cost effective solution. The work included reconstructing and extending RW 10-28 to 5750’ feet in length and 75’ in width, a new MIRL system, a new PAPI, and miscellaneous grading and drainage improvements. The cost of the improvements was $2.9 million. The project was phased over 2 construction seasons and required extensive communication with airport staff to develop a work area and phasing plan to keep the airport’s secondary runway open and in operation during construction of the RW 10-28. For the runway extension portion of the work, our team developed a safety plan that enabled 4,000 feet of RW 10-28 to remain open an in operation during construction of the extension.