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General Information

What is the department's name, address, email and phone number?

The Louisiana Department of Transportation and Development (DOTD) is a large agency with numerous field and headquarters personnel involved in a wide range of statewide transportation improvement programs. A "Contact DOTD" section, which lists administrators for various programs, may be found as a menu option on DOTD's home page,

DOTD's Headquarters Building is located at 1201 Capitol Access Road, Baton Rouge, LA 70802-4438. Its mailing address is P.O. Box 94245, Baton Rouge, LA 70804-9245.

To find a particular employee's telephone number or obtain telephone information, dial (225) 379-1100.

DOTD's Public Information Office also serves as a central clearinghouse for the entire agency by receiving email requests, forwarding to appropriate agency officials and ensuring that responses are provided in a timely manner. Interested persons may send emails directly to or telephone (225) 379-1232 or 1-877-4-LADOTD (1-877-452-3683). DOTD welcomes public input and strives to answer each e-mail within three business days.

What is the history of DOTD?

The Louisiana Legislature established the Board of State Engineers in 1898 to create a uniform public road system. Its responsibilities increased in 1921 when the legislature created the Louisiana Highway Commission as an independent state agency. The Louisiana Department of Highways was created in 1940 serving under the Board of Highways and a Director. In 1976, the Department of Highways was abolished and the legislature created the Louisiana Department of Transportation and Development (DOTD).

How many miles of highways is DOTD responsible for?

DOTD is responsible for over 16,705 miles of roadway and 894 miles of interstate.

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