System Improvements

Rebuilding the existing transmission line from Franktown to Castle Rock. This transmission line rebuild will be within the existing alignment of the current line. Design operations are currently underway and construction is scheduled for the spring/summer of 2023. Click here for additional information.

Upgrading 1.8 miles of existing 1-phase to 3-phase to increase capacity and balance phasing. Construction is currently underway and is expected to be completed in October of 2022.

Upgrading 4.5 miles of existing 1-phase to 3-phase to increase the capacity and balance phasing. The construction for this project began in June of 2022.

Relocating equipment and underground conductors to accommodate a road construction project along Castle Pines Parkway and Lagae Road. The project is expected to be complete by July 2022.

A rebuild of approximately 9 miles of 115-kilovolt transmission line between our Bayou Substation in Douglas County and Elizabeth Substation in Elbert County is complete. The new line was energized in March 2022.

The upgrade of 2.5 miles of existing three-phase distribution line with a larger conductor will increase capacity and improve reliability. Construction was completed in March 2022.

Installation of a larger conductor on 1.1 miles of existing three-phase distribution line will increase capacity and improve reliability. The project was completed in May of 2022.

CORE plans to rebuild this substation to increase capacity and improve reliability. Construction is set to begin in July of 2022.

A new substation near the intersection of Highways 86 and 83 on the north side of Franktown that will accommodate load growth in that area is complete. The Franktown substation project has been completed and is now energized.

Construction is currently underway, upgrading 3 miles of the existing single-phase distribution line and removing the open-wire secondary line. Project is expected to be complete by the end of 2022.

CORE is upgrading approximately 9 miles of single- and three-phase distribution lines and member line taps to improve reliability, improve aesthetics, and bring facilities and equipment up to CORE’s latest standards. Phase 1 of the three-phase project is complete. Phase 2 will begin in Summer 2022, and Phase 3 in early 2023. Click here for additional information.

A reroute of 5 miles of single-phase distribution and rebuild of secondary line along West Platte River Road, east of Foxton in south Jefferson County, will eliminate river crossings, improve access and increase reliability. The mountainous terrain necessitates the use of helicopters to remove and set wood poles. This project was completed in March of 2022.

CORE is committed to mitigating the risk of wildfire to protect our members, employees and distribution system. We have implemented a comprehensive wildfire mitigation plan to reduce the risk of CORE’s equipment and facilities causing a wildfire. The plan is intended to safeguard members, our employees and the electric system upon which you rely now more than ever. More information about the plan is available here.

A rebuild of approximately 7 miles of existing three-phase line along Highway 24 between Woodland Park and Divide is complete and in final cleanup. The new line was built with fiberglass arms and polymer insulators that will better withstand the magnesium chloride used to de-ice the highway. The project was completed in April of 2022.