1955 Louisiana Highway renumbering
In 1955, Louisiana passed a law that undertook a comprehensive revision to the state highway classification and numbering system. The new system designated roads by importance to travel patterns and rectified the previous numbering system under new unified designations.
| This article is part of the highway renumbering series. | |
|---|---|
| Alabama | 1928, 1957 |
| Arkansas | 1926 |
| California | 1964 |
| Colorado | 1953, 1968 |
| Connecticut | 1932, 1963 |
| Florida | 1945 |
| Indiana | 1926 |
| Iowa | 1926, 1969 |
| Louisiana | 1955 |
| Maine | 1933 |
| Massachusetts | 1933 |
| Minnesota | 1934 |
| Missouri | 1926 |
| Montana | 1932 |
| Nebraska | 1926 |
| Nevada | 1976 |
| New Jersey | 1927, 1953 |
| New Mexico | 1988 |
| New York | 1927, 1930 |
| North Carolina | 1934, 1937, 1940, 1961 |
| Ohio | 1923, 1927, 1962 |
| Pennsylvania | 1928, 1961 |
| Puerto Rico | 1953 |
| South Carolina | 1928, 1937 |
| South Dakota | 1927, 1975 |
| Tennessee | 1983 |
| Texas | 1939 |
| Utah | 1962, 1977 |
| Virginia | 1923, 1928, 1933, 1940, 1958 |
| Washington | 1964 |
| Wisconsin | 1926 |
| Wyoming | 1927 |
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