This manual provides a convenient guide for NDDOT policies, procedures, and design values that are presently recommended for road and bridge designers. Designers and other users should follow the policies, procedures, and guidelines; as well as other guidance and principles provided by AASHTO and other publications.
The Design Manual is updated on a regular basis. Please use the electronic version of the Design Manual on the website to ensure you have the latest working copy. Check out Recent Revisions, Corrections and Updates for the latest changes.
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The North Dakota Department of Transportation (NDDOT) makes the Design Manual available on the web on an "as is" basis as a public service. Under no circumstances does NDDOT warrant or certify the information to be free of errors or deficiencies of any kind. NDDOT specifically disclaims all warranties, express or implied, including but not limited to the warranties of merchantability and fitness for a particular purpose.
The use of any of this information for work which is under contract with the NDDOT, does not relieve the user from any obligations assumed by the contract, or from complete and proper fulfillment of the terms of the contract, nor does it entitle the user to compensation for damages of loss which could be attributed to such use.
This information is subject to change by NDDOT. Anyone relying on this information should satisfy himself/herself as to the most current version. The user agrees to accept all risks and consequences flowing from or related to the use, retention, distribution, alteration, or deletion of this information. NDDOT will in no instance be liable for any loss of profit or other damage, including but not limited to special, incidental, consequential, or other damages, even if apprised of the likelihood of such damages.
Note: This manual provides a written account of how certain activities are performed and is designed to guide and assist staff in performing their functions. When appropriate, there may be deviations from these written procedures due to changes in personnel, policies, interpretation, law, experimentation with different systems, or simply evolution of the process itself. This manual may be changed at any time. Staff are encouraged to review this manual periodically and suggest changes in the manual to keep the manual current and to minimize differences between the manual and actual practices.