The 1955 renumbering was a renumbering of state highways which took place in Louisiana in 1955. A state highway in the United States is a numbered highway primarily administered by a state government. ... Official language(s) de jure: none de facto: English & French Capital Baton Rouge Largest city New Orleans [1] Area  Ranked 31st  - Total 51,885 sq mi (134,382 km²)  - Width 130 miles (210 km)  - Length 379 miles (610 km)  - % water 16  - Latitude 29°N to 33°N  - Longitude 89°W... 1955 (MCMLV) was a common year starting on Saturday (link will display the full calendar) of the Gregorian calendar. ...