This Transportation State to State video takes you to Washington, California, Nevada and North Carolina to see what’s happening on the front lines at State Departments of Transportation across America. Under the city of Seattle, a video-equipped drone gives us a bird’s eye view inside the massive SR 99 tunnel now being drilled by a giant machine nicknamed Bertha. In Nevada, you’ll see how construction of the USA Parkway will connect one of the largest industrial centers in the world to some of the region’s major thoroughfares. In California an innovative approach called a “maintenance swarm” is saving taxpayers both time and money. North Carolina completes our tour with news about major investments in the state’s multimodal transportation network to improve efficiency, safety and mobility.