Ports and Flood Control Unit
Since the 1940's the State of Louisiana has contracted with the U.S. Geological Survey to accomplish topographic mapping of Louisiana. This effort has produced complete coverage of the state at a 15 minute, a 7 1/2 minute, 1:100,000 and 1:250,000 scales. The 15 minute series is no longer being printed by the U.S.G.S. but some copies are still available from General Files.
Please refer to the USGS web site for additional information.
All of the Louisiana topographic maps, along with parish maps, highway map and the Official State Map of Louisiana are available for sale to the public as follows:
- LA Dept of Transportation & Development
- General Files, Room 100
- 1201 Capitol Access Road,
- Baton Rouge, La.
The Official State Map of Louisiana is prepared and distributed by the Public Works and Water Resources Division, DOTD. The first edition was published in 1937 and new editions are now published approximately every four years. All previous editions were prepared by Public Works staff. An updated edition of the Official Map, which was completed in the year 2000, under a contract with the Louisiana Geological Survey, is now available for distribution. A new edition, also contracted with the Louisiana Geological Survey, is under development.
The State of Louisiana through DOTD, Public Works and Water Resources Section, maintains a statewide mapping information program on a matching funds basis with the U.S. Geological Survey. Topographic maps are compiled, revised, and issued and made available to the public for many diverse uses. This mapping program has been highly successful in the past in producing quadrangle maps and Louisiana was the first state to provide complete quadrangle coverage over its entire jurisdiction. The programs current focus is the updating of older maps and the creation of appropriate new maps in developing areas.