As of 2020, approximately 137 million wooden utility poles can be seen on the horizons and landscapes across the United States, according to the Edison Electric Institute. While some areas have replaced wooden poles with concrete, metal or fiberglass structures, most utility poles are still made of wood.

Pole inspections are on a 10-year rotation. With nearly 45,000 poles supporting Somerset REC’s distribution system, 4,500 of those poles are scheduled for inspection and testing this year. Regular testing allows the cooperative to meet industry standards, reduce liability risks, and improve reliability. Somerset REC has contracted with two companies to perform this work. Davey Resources started pole inspections in May and Clearsight is projected to start in July.

Extreme weather, sunlight and wildlife are the main causes for failure in a wooden utility pole. Through advances in technology, poles can be checked for structural stability and strength. By identifying pole weaknesses or defects through thorough inspections, the risk of failures that could lead to costly disruptions in power supply are minimized. Testing can also extend the lifespan of the poles.

Resistograph testing, which uses a needle-like probe to bore into the wood, determines soundness by measuring the resistance the probe encounters. Once specific weaknesses or defects are detected, actions such as treating decayed areas with preservatives or replacing severely compromised poles can be taken.

Cooperative sub-contractors can be identified by a Somerset Rural Electric Cooperative magnetic sign attached to their equipment. If you are unsure of a vehicle at your residence or business, you can always reach out to the co-op for verification of where crews are working. Pole inspections are scheduled through September and are dependent on weather conditions.