20080915 Ver 2_Emails_20140813

Higgins, Karen
From:Oakley, Mark <[e-mail]>
Sent:Wednesday, August 13, 2014 11:51 AM
To:Goudreau, Chris J.; [e-mail]; Tarver, Fred; Karoly, Cyndi; Higgins, Karen;
Williams, Melanie
Cc:Stryker, Lisa Hoffmann; Galleher, George A
Subject:Information regarding activities at Bridgewater Hydro (Lake James)
This is a courtesy notification regarding construction activities next week at the Linville Dam on Lake James
(Bridgewater Hydro).

Duke Energy needs to remove the cofferdam (identified in the photograph below) at the Linville Dam. Work
will begin Monday morning, August 18 and is expected to be complete by the end of the work day Wednesday,
August 20. The installed sediment basin downstream of the cofferdam will remain in place until late 2015 or
early 2016.

Duke Energy expects to continue running the Bridgewater minimum flow unit throughout the duration of this
work and comply with all license requirements. However, should this minimum flow release cause water to
seep into the sediment basin and threaten to inundate the work site, then there could be periods of time that the
minimum flow will have to be interrupted.
In preparation (and as a contingency), Duke Energy will open the
minimum flow valve located on the Catawba Dam late Friday afternoon, August 15. The valve releases a jet of water that
is visible from NC Highway 126, and is part of normal operations. Based on the anticipated work schedule the valve will
close mid-week, after the work is complete.

Once the coffer dam is removed it will allow the construction of the new dam toe and associated ditches.

Please let me know if there are any questions.

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