The designation was approved by the American Association of State Highway and Transportation Officials (AASHTO) on Octofor the freeway after a previous request to have the expressway incorporated to Interstate 49 was denied. The Westbank and Pontchartrain Expressway portions of Business U.S. 90 Business northwest directly to Interstate 10 by the B.W. The Pontchartrain Expressway extends U.S. The remainder of the route east from Ames Avenue follows an elevated six-lane freeway to the Greater New Orleans / Crescent City Connection Bridges across the Mississippi River. 90 Business travels along the Westbank Expressway, which begins as an arterial route through Westwego.
90 by the Superdome and Downtown New Orleans. 90 near Avondale to Interstate 10 and U.S.
90 Business forms a hook-shaped route from U.S.
90-Z by LADOTD, the 13.87 mile route of U.S.
