The road is well maintained, and following the signs you will easily find the right way to the place. However, the real adventure begins only after you leave your car in the parking lot.
You will see the Toketee Pipeline as soon as you get out of the car. The redwood tube is part of the large North Umpqua Hydroelectric Project.
The path includes some steps (about 200 in number), but they are actually in different parts of the route, so don't worry about that.