Corrosion Blamed for Power Line Collapse Near Road

A spokesman for Chugach Electric Association says a corrosion problem led to the collapse of power lines that closed the Seward Highway for more than four hours Tuesday.

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by Associated Press

ANCHORAGE- A spokesman for Chugach Electric Association says a corrosion problem led to the collapse of power lines that closed the Seward Highway for more than four hours Tuesday.

Phil Steyer says that corrosion likely weakened two anchor rods supporting guy wires and the rods broke.
He says by email that loss of the guy wires caused the wooden pole holding the wire to break and allow a conductor to sag near the ground.
The lines fell about a mile north of Girdwood.
Alaska State Troopers report a pickup drove over them at about 4 a.m.
A semi entangled its side mirror in the lines at 4:45 a.m.
The driver had to stay in the cab until an electrical crew freed him three hours later.