They anticipated that people would want to stop on the bridge to view the dam. They built a pedestrian walkway on the side of the bridge that overlooks the dam. They also built a concrete barrier on the bridge that blocks the view of the dam so that motorists would not slow down and block traffic to view the dam.
To see the dam from the bridge, you have to exit highway 93 on the Nevada side and take a road that doubles back to a location near the bridge. There is a walkway that goes up to the bridge. the road also continues to a parking garage and visitor center for tours of the dam itself.
Check out beautiful travel photos of Villa Balbianello on Lake Como, Italy at Viva la Voyage!