The road received its name from the parallel high tension power lines for almost its entire length.

Now in Boca Raton, the route continues north and reaches Palmetto Park Road (SR 798).

After CR 798, the route bends northeast and soon northward to a junction with SR 808 (Glades Road).

Powerline continues north as Jog Road, which crosses through Palm Beach County.

[2] On December 19, 2017, the Palm Beach County Board of Commissioners approved a transfer agreement to submit to the Florida Department of Transportation (FDOT).