CFR › Title 33 › Part 117 › §117.46333 CFR §117.463Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy link(a)The draw of the US190 bridge, mile 6.8 at Lacombe, shall open on signal if at least 48 hours notice is given.(b)The draw of the Tammany Trace bridge, mile 5.2 at Lacombe, shall open on signal if at least 2 hours notice is given.