After researching the boat ramp named Island County in Washington, it appears that there is not enough information available online to accurately answer all of the questions posed in the prompt.

However, based on the available information, it seems that the Island County boat ramp is located near the town of Clinton on Whidbey Island in Island County, Washington. It provides access to the waters of Possession Sound, which is part of Puget Sound.

There are no clear indications online as to the width of the ramp or what specific types of watercraft are permitted to launch from it. However, it can be assumed that standard boating regulations and restrictions enforced by Washington state would apply.

It is worth noting that the facilities at the Island County boat ramp may vary depending on the season and the current state of maintenance. Boaters are advised to check local sources and contact the ramp directly for the latest information on ramp conditions, available services, and any fees or permits required for launching.