Our Daily Sykes Our Daily Sykes #439 – Late Grand Coulee Construction September 5, 2011 pdorpat Leave a comment The "special effects" of streaking headlights roughly reveals how long of an exposure was needed for this after dark look down on the Grand Coulee Dam community in the late stages of the dam's construction. Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Like this:Like Loading...