Lane Co. SO release – The Lane County Sheriff’s Office is advising the public of a water obstruction on the McKenzie River approximately ¼ mile downstream from Olallie boat launch, east of Springfield. Due to a tree down across the river, the channel is completely blocked and is not safely navigable. For the most current information on water obstructions and safety tips, please review the information provided by the Oregon State Marine Board at www.oregon.gov/osmb