Proposed Alternatives. Nine alternatives are currently under evaluation for the Gravina Access Project. The no-action alternative and three of the build alternatives involve ferry service, the primary means of access between ▇▇▇▇▇▇▇ and ▇▇▇▇▇▇▇ Islands at present. The other five alternatives are bridge options to link the two islands. A brief description of the alternatives follows. All options, except no-action, provide for additional road construction on ▇▇▇▇▇▇▇ Island. The plans include a proposed road south and west of the airport, henceforth referred to as the planned Gravina road. The proposed design of the planned Gravina road varies somewhat with the alternatives. • No-action-Under this alternative there would be no change in access between Gravina and ▇▇▇▇▇▇▇ Islands. The current ferry service would continue without change. • C3(a)-A bridge with 200 feet of vertical clearance to allow the one-way passage of large cruise ships would connect the two islands. The bridge access road would meet Signal Road on ▇▇▇▇▇▇▇ Island. The bridge would cross the Tongass Narrows to ▇▇▇▇▇▇▇ Island landing north of the airport terminal, then turn to the south, parallel to the airport runway, where it would connect with the planned Gravina road at the south end of the airport. • C3(b)-The alignment of this bridge option is very similar to that of C3(a). The primary difference is that the maximum vertical clearance of the bridge would be 120 feet, a distance sufficient for Columbia class ferries but not for large cruise ships. Road access on ▇▇▇▇▇▇▇ and ▇▇▇▇▇▇▇ Islands would be essentially the same as C3(a). • C4-This alternative provides for a bridge with a vertical clearance of 200 feet, sufficient for large cruise ships. Near ▇▇▇▇▇▇▇ Island, this bridge has essentially the same alignment as C3(a). On ▇▇▇▇▇▇▇ Island the bridge would connect with the planned Gravina road south of the airport. On ▇▇▇▇▇▇▇ Island, the proposed bridge access road would connect with Tongass Avenue just north of Cambria Drive. • D1-This option calls for a bridge having a vertical clearance of 120 feet, insufficient for the passage of large cruise ships. The ▇▇▇▇▇▇▇ Island portion of this alternative would be very similar to that of the four preceding bridge alternatives in that the bridge would connect to the planned Gravina road on the south side of the airport. On ▇▇▇▇▇▇▇ Island the bridge access road would intersect Tongass Avenue near Cambria Drive. • F3-This alternative would involve construction of a bridge across the east channel of the Tongass Narrows from the South Tongass Highway to ▇▇▇▇▇▇▇ Island. This bridge would have a vertical clearance of 60 feet, thus precluding use of the east channel by cruise ships and Alaska state ferries. A road across ▇▇▇▇▇▇▇ Island would connect this bridge with a bridge with 200 feet of vertical clearance, sufficient for cruise ship passage, across the west channel of the Tongass Narrows. The road across ▇▇▇▇▇▇▇ Island would not provide access for ▇▇▇▇▇▇▇ Island residents. On ▇▇▇▇▇▇▇ Island, another road would be constructed from the proposed Gravina road near the airport to the west channel bridge. • G2-Ferry service for vehicles and pedestrians would be established between Peninsula Point on ▇▇▇▇▇▇▇ Island and ▇▇▇▇▇ Point on ▇▇▇▇▇▇▇ Island. New terminals would be built in both locations. A new road would be constructed to link ▇▇▇▇▇ Point on ▇▇▇▇▇▇▇ Island with the planned Gravina road. Current ferry service would continue without change. • G3-A new ferry route between Ketchikan and a location just south of the airport would be established. On ▇▇▇▇▇▇▇ Island a new terminal would be constructed between the Plaza, a mall, and Bar Harbor. On ▇▇▇▇▇▇▇ Island this option would involve a new terminal and another road connecting the terminal to the proposed Gravina road. Current ferry service would continue without change. • G4-Ferry service along the current route would be expanded with the construction of new terminals near the present terminal sites on ▇▇▇▇▇▇▇ and ▇▇▇▇▇▇▇ Islands and the addition of two ferries. A connecting road from the new terminal to the proposed Gravina road would be constructed as part of this alternative. Current ferry service would continue without change. The proposed routes for the alternatives are shown in Figure 2-1. The dotted lines indicate a proposed or existing ferry route. The solid lines indicate a bridge and road construction associated with the bridge and ferry options.
Appears in 1 contract
Sources: Economic Impact Assessment Agreement
Proposed Alternatives. Nine Ten alternatives are currently under evaluation for the Gravina Access Project. The no-action No Action alternative and three of the build alternatives involve ferry service, the primary means of access between ▇▇▇▇▇▇▇ and ▇▇▇▇▇▇▇ Islands at present. The other five six alternatives are bridge options to link the two islands. A brief description of the alternatives follows. All options, except no-actionthe No Action, provide for additional road construction on ▇▇▇▇▇▇▇ Island. The plans include a proposed road south and west of the airport, henceforth referred to as the planned Gravina road. The proposed design of the planned Gravina road varies somewhat with the alternatives. • No-action-Under this alternative there No Action–There would be no change in access between Gravina and ▇▇▇▇▇▇▇ Islands. The current ferry service would continue without changeas is. • C3(a)-A C3(a)–A bridge with 200 feet of vertical clearance to allow the one-way passage of large cruise ships would connect the two islands. The bridge access road would meet Signal Road on ▇▇▇▇▇▇▇ Island. The bridge would cross the Tongass Narrows to ▇▇▇▇▇▇▇ Island landing north of the airport terminal, then turn to the south, parallel to the airport runway, where it would connect with the planned Gravina road at the south end of the airport. • C3(b)-The C3(b)–The alignment of this bridge option is very similar to that of C3(a). The primary difference is that the maximum vertical clearance of the bridge would be 120 feet, a distance sufficient for Columbia Columbia-class ferries ferries, but not for large cruise ships. Road access on ▇▇▇▇▇▇▇ and ▇▇▇▇▇▇▇ Islands would be essentially the same as similar to C3(a). • C4-–This alternative provides for a bridge with a vertical clearance of 200 feet, sufficient for large cruise ships. Near ▇▇▇▇▇▇▇ Island, this bridge has essentially the same alignment as C3(a). On ▇▇▇▇▇▇▇ Island Island, the bridge would connect with the planned Gravina road south of the airport. On ▇▇▇▇▇▇▇ Island, the proposed bridge access road would connect with Tongass Avenue just north of Cambria Drive. • D1-–This option calls for a bridge having a vertical clearance of 120 feet, insufficient for the passage of large cruise ships. The ▇▇▇▇▇▇▇ Island portion of this alternative would be very similar to that of the four preceding bridge alternatives in that the bridge would connect to the planned Gravina road on the south side of the airport. On ▇▇▇▇▇▇▇ Island the bridge access road would intersect Tongass Avenue near Cambria Drive. • F1–This alternative includes a bridge with a vertical clearance of 200 feet across the East Channel of the Tongass Narrows from ▇▇▇▇▇▇▇ Island to ▇▇▇▇▇▇▇ Island. This bridge would be connected by a road across ▇▇▇▇▇▇▇ Island to a 120-foot high bridge across the west channel between ▇▇▇▇▇▇▇ Island and ▇▇▇▇▇▇▇ Island. The road across ▇▇▇▇▇▇▇ Island would not provide access for ▇▇▇▇▇▇▇ Island residents. On ▇▇▇▇▇▇▇ Island, another road would be constructed from the proposed Gravina road near the airport to the West Channel bridge. • F3-–This alternative would involve construction of a bridge across the east channel East Channel of the Tongass Narrows from the South Tongass Highway to ▇▇▇▇▇▇▇ Island. This bridge would have a vertical clearance of 60 feet, thus precluding use of the east channel East Channel by cruise ships and Alaska state State Marine Highway ferries. A road across ▇▇▇▇▇▇▇ Island would connect this bridge with a bridge with 200 feet of vertical clearance, sufficient for cruise ship passage, across the west channel West Channel of the Tongass Narrows. The road across ▇▇▇▇▇▇▇ Island would not provide access for ▇▇▇▇▇▇▇ Island residents. On ▇▇▇▇▇▇▇ Island, another road would be constructed from the proposed Gravina road near the airport to the west channel bridge. An option under consideration with this alternative is to modify the West Channel by providing a 750- foot wide navigational channel. The center of the channel would be dredged to minus 40 feet water depth at mean lower low water with a minimum width of 550 feet. An additional 100 feet on each side would be dredged to minus 30 feet at mean lower low water. • G2-Ferry –Additional ferry service for vehicles and pedestrians would be established between Peninsula Point on ▇▇▇▇▇▇▇ Island and ▇▇▇▇▇ Point on ▇▇▇▇▇▇▇ Island. New terminals would be built in both locations. A new road would be constructed to link ▇▇▇▇▇ Point on ▇▇▇▇▇▇▇ Island with the planned Gravina road. Current ferry service would continue without change. • G3-A –Additional new ferry route between Ketchikan and a location just south of the airport would be established. On ▇▇▇▇▇▇▇ Island Island, a new terminal would be constructed between the Plaza, a mall, and Bar Harbor. On ▇▇▇▇▇▇▇ Island Island, this option would involve a new terminal and another road connecting the terminal to the proposed Gravina road. Current ferry service would continue without change. • G4-Ferry Additional ferry service along the current route would be expanded with the construction of new terminals near the present terminal sites on ▇▇▇▇▇▇▇ and ▇▇▇▇▇▇▇ Islands and the addition of two ferries. A connecting road from the new terminal to the proposed Gravina road would be constructed as part of this alternative. Current ferry service would continue without change. The proposed routes for the alternatives are shown in Figure 2-1. The dotted lines indicate a proposed or existing ferry route. The solid lines indicate a bridge and road construction associated with the bridge and ferry options1.1.
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Sources: Economic Impact Assessment Agreement