Based on available information, the boat ramp named US 93 East Salmon in Idaho is a concrete ramp with a gravel parking area. It is approximately 16 feet wide and has a steep grade. The ramp services the Salmon River, which is a popular destination for fishing and recreational boating.

There are no specific restrictions on the type of craft that are permitted on the river, but it is recommended that boats be no longer than 20 feet in length due to the narrow and winding nature of the river. Additionally, boaters are advised to check current water levels and weather conditions before launching to ensure safe navigation.

This information is based on the latest available data from the Idaho Department of Fish and Game, which provides boating access information for waterways throughout the state. It is always important to verify information before planning a boating trip, as conditions can change rapidly and unexpectedly.