Pinellas County is reinforcing traffic signals ahead of hurricane season by replacing older span wire systems with stronger mast arms at key intersections.

Crews are currently working at 30 intersections across the county to complete the upgrades. Unlike span wires that can twist and fail in high winds, mast arms offer a sturdier, more storm-resistant alternative.

“Typically, in a hurricane, we get one or two span wires that are damaged,” said County Transportation Director Tom Washburn. “Because of the way they swing in the wind, they get twisted. A lot of the equipment gets damaged.”

Washburn explained that hanging signal wires can sway and become vulnerable even in strong winds outside of hurricanes. Mast arms not only hold up better during storms but also help ensure traffic lights are operational more quickly afterward, aiding both emergency response and residents returning home.

Crews are prioritizing high-traffic and evacuation routes. A FEMA grant partially funds the upgrades, and a state law now requires all new traffic signals in coastal areas to be built with mast arms instead of wire suspensions.

“These arms are much more hardened structures,” Washburn said. “They’re easier to operate. They’re easier to maintain.”

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