Photos Courtesy Gravina-Access Project
Alternative C3 (b), a variant of Alternative C3 (a), involves a lower bridge structure and a slightly different alignment. Alternative C3 (b) includes a 37-meter (120-foot) high bridge with a 152-meter (500-foot) wide main span, providing clearance for Columbia class ferries, but not larger cruise ships. This variant would have the same general alignment on Revilla and Gravina Islands as Alternative C3 (a); however, the bridge over Tongass Narrows would be positioned approximately 300 meters (1,000 feet) farther north. With this alignment, the bridge would touch down (reach the ground surface) in front of the airport terminal and eliminate the need for an airport return loop road.
The EIS is assessing the no-action alternative and nine build alternatives:
Photo Essay 1 - East Channel High Bridge - Alternative F1 a combined 200-foot high/120-foot high bridge crossing that incorporates Pennock Island (published March 02, 2003)
Photo Essay 2 - Alternative F3 Pennock Island Crossing 60-foot High Bridge East Channel and 200-foot High Bridge West Channel
Photo Essay 3 - Alternative C3A
Photo Essay 4 - Alternative C3B
Photo Essay 6 - Alternative D1: 120-foot High Bridge Airport Area
A special thank you to the Gravina Access Project Team for providing these photographs & information.
Source of Information: