Update: 9 p.m. Tuesday, Dec. 17

TDOT crews have finished repair work on a small sinkhole that made a big impact on traffic.

Crews had to shut down one lane of southbound traffic for more than 24 hours, which backed up traffic in South Knoxville for much of the day Tuesday.

The hole has been filled with asphalt and both lanes are now open to traffic.

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One lane of Alcoa Highway southbound remains blocked Tuesday afternoon due to a sinkhole.

It opened up Monday afternoon in the left shoulder near UT Medical Center in south Knoxville.

TDOT crews closed off the left southbound lanes while they repaired the damage.

One lane will remain closed through rush hour Tuesday night, but crews expect to lay asphalt over the repairs and have all lanes back open at some point later in the evening. The northbound lanes remain open.

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A small sinkhole has closed one lane of Alcoa Highway Monday night.

According to TDOT, the sinkhole on the shoulder of the southbound lanes near the UT Agriculture Center exit was noticed around 5 pm. Crews closed the left lane of the road in that area so that repairs could be made.

It's not clear how long the lane will be closed, but TDOT's Smartway website indicates it could be closed until sometime Tuesday.

Northbound traffic is not affected.