Sinkhole briefings slated in Assumption Sinkhole briefings slated in Assumption River Parishes bureau| Jan. 22, 2013 Comments BAYOU CORNE — Two briefings for Assumption Parish residents affected by a large sinkhole are scheduled at the Assumption Community Center in Napoleonville, parish officials said. Texas Brine Co. LLC officials will speak to residents about their activities in response to the sinkhole at 6 p.m. Jan. 30, parish officials said in a blog post Sunday. State and parish officials will speak to residents at 6 p.m. Feb. 5, parish officials said. The center is at 4910 La. 308.