Early view of the construction activities at Grand Coulee Dam. Of note is that the railroad bridge, seen on the left, has been constructed, though it will never be used by the railroad due to its inability to hold the weight of the cars. Following the line up the side of the hill you can see the railroad tunnel (still there today). Part of the highway alongside the right hand side of the dam was also the railroad grade. In the exact center of the photo, a railroad bridge can be seen, being part of a switchback down to the dam. This bridge crossed the highway where the visitor center is today.