TVA making calls after lock shut down

HIXSON, Tenn. (AP) – The Tennessee Valley Authority is exploring options for moving a 200-ton replacement part to its Kingston Steam Plant should repairs to the Chickamauga Lock take longer than expected.

TVA spokesman Jim Hopson said the generator part is supposed to move on the Tennessee River. But the utility is wants options in case the lock repairs take more than the estimated three weeks.

The lock closed Monday afternoon, shutting off through-traffic by commercial and recreational boats in Chattanooga.

The Army Corps of Engineers has blamed a gate failure.

The Corps has spent nearly $200 million on a new lock, but the agency estimates it will cost nearly $500 million more to finish it.