CORE Electric Cooperative planned an approximately 11-mile rebuild of its Roxborough-to-Timber Mill transmission route, according to information Douglas County published Sept. 1. The 115-kilovolt line would be rebuilt in two stretches, running through the Sedalia Substation.
The announced schedule called for work from September 2026 through June 2027. Crews would replace poles, conductors and shield wire using a mix of steel and wood structures within the existing 75-foot right-of-way.
Some equipment dates to the 1970s, CORE said. Temporary access areas may be needed for construction, with disturbed areas to be restored as appropriate. The utility described those access arrangements as specific to the transmission rebuild, rather than access for other proposed projects.
