A high mast illumination pole foundation is necessary for all high mast poles. They are typically specified by 0416 XXXX DRILL SHAFT (HIGH MAST POLE) (XX IN), where the diameter XX can range from 54 in. to 66 in. The foundation's concrete and steel is included in Item 416, and the anchor bolts are included in Item 613. The riprap pad around the foundation is typically specified by 0432 6001 RIPRAP (CONC)(4 IN).

High mast illumination pole foundations are measured by the linear foot of drill shaft depth.