Based on the latest information available, the Susan Creek boat ramp in Oregon is a concrete ramp that is accessible year-round. It is located at latitude 43.29751587 and longitude -122.9057312. The width of the boat ramp is not specified in available sources, but it is likely to be wide enough to accommodate most types of watercraft.

The Susan Creek boat ramp provides access to the Umpqua River, which is a popular destination for fishing and boating in Southern Oregon. The Umpqua River is about 111 miles long and flows into the Pacific Ocean near Winchester Bay.

According to official sources, the waterway is open to a variety of watercraft, including motorboats, kayaks, canoes, and stand-up paddleboards. However, there may be restrictions on certain types of watercraft during certain times of the year, so it is advisable to check with local authorities before heading out on the water.

Overall, the Susan Creek boat ramp is a convenient and popular spot for launching a wide variety of watercraft on the Umpqua River in Oregon.