I'm sorry but there seems to be an error in the question. The Whitewater River run Lone Rock to the Confluence of the Green and Wisconsin Rivers is actually located in the state of Wisconsin, not Louisiana. The ideal streamflow range for this run is between 500 and 5,000 cubic feet per second (cfs). The class rating for this run ranges from Class II to Class III, providing a moderate level of difficulty for experienced paddlers. The segment mileage for this run is approximately 9.5 miles. There are several specific river rapids and obstacles to be aware of when paddling this run, such as Lone Rock, Twin Sisters, and The Narrows. Lone Rock is a particularly demanding obstacle, requiring precise maneuvering to avoid being swept into the rock. Twin Sisters is another challenging rapid, featuring two large boulders that must be navigated through. The Narrows is a narrow channel with strong currents that require careful navigation. In terms of regulations, paddlers must obtain a permit from the Wisconsin Department of Natural Resources before accessing this river run. Additionally, there are restrictions on the use of motorized watercraft on certain segments of the river. Paddlers are advised to carry appropriate safety equipment, such as helmets and life jackets, and to be aware of changing river conditions.