In photography, Blue hour is the period of twilight in the morning or evening when the sun is below the horizon and indirect sunlight causes the sky to take on a predominantly blue shade. When the sky is clear, blue hour can offer a spectacular color show, as the indirect sunlight appears in streaks of yellow, orange, red, and blue. Artists and photographers love this time of day for the quality of soft light.
Occasionally, the Bridge Project team moves our traditional morning photoshoots to chronicle the progress of construction to late-afternoon golden-hour (just before sunset) and blue-hour (just after sunset) shoots. The results paint the new bridge in a completely different light, as you can see in the photo above. This picture was taken on the east side of the construction site, looking up at the in-progress off-ramp into the city from the eastbound decline, which is directly overhead. The westbound incline is on the right.