Louisiana Proposed numbering for a 9.7-mile segment of US 90 Business from Interstate 10 to the end of the elevated West Bank Expressway. The US 90 corridor was designated part of the I-49 corridor by federal legislation in 1991. In May 1999, the state petitioned to apply the I-49 numbering to two existing freeway portions of US 90, near New Orleans and from Raceland to Berwick. I-910 may pave path in N.O.,' April 1, 2000.
Unnamed sources are either maps or personal experience.