“There’s a lot more here than meets the eye,” says Clark Wolff with a sweep of his hand. Inside the shop at Selco Inc. are boxes filled with miles of reflective tape, hundreds of battery-powered amber blinkers, wiring for temporary traffic lights and stacks of bright orange highway construction signs.
Selco, a 38-year-old company based in Dubuque, Iowa, rents temporary signage, safety barriers, lighting, message boards and other traffic control paraphernalia used on road construction projects in parts of three states.
But the company is also a long-time portable sanitation operator, providing restrooms and sinks for construction sites and special events in
