south of I-10 and an urban minor arterial north of I-10 by the Louisiana Department of Transportation and Development (La DOTD). Average daily traffic volume in 2013 is reported as follows: 20,700 from the southern terminus to West Metairie Avenue; 34,200 to Veterans Memorial Boulevard; and 48,200 to the northern terminus. The entire route has a posted speed limit of . History Pre-1955 route numbering In the original Louisiana Highway system in use between 1921 and 1955, the modern LA 49 was part of two routes. The first was State Route 452, designated in 1928. Route 452 followed Williams Boulevard from 3rd Street northward to what was then the Kenner city limits at 19th Street (now West Metairie Avenue). At the time, 3rd Street was part of the main route between New Orleans and Baton Rouge, followed first by the Jefferson Highway auto trail in 1916. This became State Route 1 in 1921 and the original route of US 61 in 1926. In 1930, State Route 1249 was designated as an extension of Route 452, continuing the route of Williams Boulevard from 19th Street northward to Route 33. Route 33 was the New Orleans–Hammond Lakeshore Highway, an ambitious scenic highway project that was intended to be part of US 51 but never completed. From 1933 to 1939, the section of Williams Boulevard south of Airline Highway served as a temporary link in US 61 while Airline Highway was being reconstructed between Kenner and Shrewsbury. Later maps show the entirety of Williams Boulevard as Route 1249 only, apparently absorbing Route 452, and remaining so until the 1955 Louisiana Highway renumbering. Post-1955 route history LA 49 was created in 1955 as a direct renumbering of Route 1249. At this time, the route still followed the entirety of Williams Boulevard from the Mississippi River at 3rd Street, which was now LA 48, to Lake Pontchartrain. Since the late 1980s redevelopment of Kenner's riverfront as the Rivertown Historic District, the southern portion of the route between LA 48 and US 61 has been returned to local control. The northern end of LA 49 has also been slightly shortened from its original terminus at the Lake Pontchartrain levee. Future La DOTD is currently engaged in a program that aims to transfer about of state-owned roadways to local governments over the next several years. Under this plan of "right-sizing" the state highway system, the portion of