Thursday, January 16, 2020 Baton Rouge riverboat casinos post 5% drop in December By Holly Duchmann - January 16, 2020 FacebookXLinkedinEmailPrint After breaking its two-year losing streak in November, the three Baton Rouge riverboat casinos posted a 5% drop in year-over-year revenues last month. Collectively, L’Auberge Baton Rouge, Holly… Already an INSIDER? Sign in.