The problem with making a permanent crossing over our creek is upstream neighbors trees falling into the creek, and washing down and stopping up any reasonable box culvert, causing an end around by the creek, or a dam up and flooding. I worry about the big box culvert (literally a short bridge) on the highway down the creek from me. They have raised the highway so much it is above the level of my walkout basement. I try to keep my part of the creek unobstructed, and if any tree falls, I cut it into smaller pieces that will pass the bridge. I can't control what the neighbors do, but sometimes their trees will wash down and get hung on one of mine. Then I cut it up after the water recedes. Silty wood is hard on chains, btw.
