Did you consider all of the navigational traffic, including cruise ships, ferries and floatplane traffic in Tongass Narrows when designing the proposed bridge structures?
Tongass Narrows supports an intricate marine and aviation transportation network. The project team met with marine and air transportation providers to gather their input. We researched the existing Ketchikan International Airport runway approach requirements and identified airspace infringement locations. Specialists conducted cruise ship simulations for transits under the bridge alternatives. Floatplane operations were assessed. All this information was used in structure selection and preliminary design of the access alternatives. The EIS includes a complete assessment of impacts to marine navigation and aviation.
