Tongass Narrows

Tongass Narrows is a Y-shaped channel, part of Southeast Alaska's Inside Passage. The waterway forms part of the Alaska Marine Highway and as such, is used by charter, commercial fishing, and recreational vessels, as well as commercial freight barges and tanks, kayaks and passenger ferries.

A proposal to build the Gravina Island Bridge across the Tongass Narrows was shelved due to a national-level controversy over the "bridge to nowhere".

Tongass Narrows is defined as the water body that extends from the Revillagigedo Channel to the Gravina Island in Clarence Strait. It is shaped as a "Y", split into two channels by Pennock Island. At its northern end is Clarence Strait. In the southeast it extends from Nichols Passage to Guard Island. The eastern side is bounded by Revillagigedo Island and the west by Gravina Island. The eastern side of the narrows includes the cities of Saxman and Ketchikan.Ketchikan International Airport is located on Gravina Island. The channel extends in a generally northwest direction for about 14 miles (23 km). About 0.625 miles (1.0 km) westward of East Clump islet, the width of Tongass Narrows is 0.125 miles (200 m), the shoal water on the north side extending out 900 feet (270 m) from the high-water mark. In mid-channel, the depth is from 15 to 26 fathoms (27–48 metres (89–157 ft)). The north shore of Tongass Narrows is steep and heavily wooded. The south shores are low, flat, and wooded, with occasional open ground for 1–2 miles (1.6–3.2 km) back, where the land rises to the California Ridge.

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