Time frame Narrows as Progress to Dual Solutions Continue
Hatteras Electric Cooperative (CHEC) continues its execution of two
simultaneous solutions to restore transmission service to Hatteras and
Crews worked quickly yesterday to set all of the poles required to
create an overhead transmission line that will run from the south end
of the Bonner Bridge to meet the cooperative’s existing overhead
transmission line. They will begin installing the cables that comprise
the 115 kV transmission service today. The next steps will include
connecting the new overhead cables in two places – to the existing
underground lines just before the site of the damage and to the
existing overhead lines that run the length of Hatteras Island. This is
a highly technical and detailed process.
The excavation team from PCL Construction worked through the night in
the trench at the site of the damage. Water continues to be an issue,
especially as crews dig deeper. In an attempt to overcome this issue,
crews built a well and installed a pump last night. This water-removal
method will be tried today. If it is successful, crews will continue to
excavate until they reach the third and final cable, at which point
specialists could begin the complex splicing process.
progress made to each of these solutions narrows the timeframe for
complete transmission restoration to 6–10 days. This includes the time
required for testing after all construction is complete and before
transmission service can begin to the islands again.
Other overnight efforts included the ramp up of temporary generation to
Hatteras Island. Equipment arrived in the middle of the night that will
allow the cooperative to increase the capacity of the current generator
network. Crews continue that work today in order to accommodate a
staged reentry of visitors. A mandatory evacuation remains in effect
for all visitors to Hatteras Island.