nd.gov - The Official Portal for North Dakota State Government
North Dakota: Legendary. Follow the trail of legends
Department of Transportation
North Dakota
 

Specification Committee Agenda Item Details


Agenda Number: AGC 09-004
Topic: Traffic Signal Foundations
Type of Action: Decision Required
Background Information: Concrete foundation designs have a dramatic change when the signal mast arm increase from 50' to 51'. The diameter of the foundation increased from 3' dia to 3.25' dia and from 11' deep to 18.5' deep. How is this explained?
Suggested Solution:
Decision:
Action Taken: The foundation that brought this to the committee's attention was designed to take into account fatigue loading. The NDDOT is in the process of determining if the Standard Drawing should take into account this loading type as well.