Like most public power districts in Nebraska, Polk County RPPD conducts annual pole inspections. We test approximately 2,500 poles in our distribution system each year, taking about eight years to inspect the entire district.
During the inspections, the technicians perform a visual examination, followed by testing the pole ground, if applicable, to ensure it meets specifications. Next, they take a core sample by boring two 3/8″ holes 90 degrees apart and at a 45-degree angle to the center of the pole to check for decay. If everything checks out, the pole is treated with an external paste wood preservative, and all core sample holes are plugged with a wood plug. If the pole fails the inspection, it is tagged for replacement. The inspectors use a grading scale to determine whether a pole passes or fails and how urgently it needs remediation. If they find a pole needing immediate attention, they notify the operations department, and the replacement is prioritized.
In 2023, we tested poles in township and range 16N-3W & 15N-3W, with repairs completed in 2024. In 2024, we inspected in township and range 14N-3W and 13N-3W, totaling 2,500 distribution poles, with repairs planned for 2025.
The costs for the 2024 distribution pole inspections & tests were approximately $90,000. Additionally, we need to carry out repairs, which average about $85,000, bringing the total to $175,000 annually.
We also must test our transmission system poles. In 2024, we inspected 188 structures at a cost of $12,000, with repairs scheduled for this year.
Pole inspection is a lot like servicing your equipment. You may not always see the value, but neglecting it can lead to greater expenses in the future. These inspections are essential for ensuring the system’s safety and reliability.
