The bright light streaking across the night sky (and reflecting in the water) is a bolide - an incredibly bright meteor which has a good chance of striking the Earth.
Here is another view of the meteor taken with an All-Sky Camera from the middle of Denver, about 70 miles away. Link will navigate you away from this site. Link image/information collected by Chris Peterson: http://www.cloudbait.com/meteor/data.php?recnum=46567
Location: Foothills outside of Fort Collins, CO
Camera: Canon XSi (modified)
Lens: Sigma 20mm f/1.8
20x1min f/4 ISO 800
Processing: Photoshop, Topaz