(Troutdale, OR) -- For the fourth year in a row, enough smelt are returning to the Sandy River that there will be a smelt harvest. It'll happen between noon and 7 p.m. on Wednesday. Smelt grow six to nine inches long and they're harvested by dip-net. Each dipper can collect ten pounds of smelt. You need an Oregon fishing license to take part. Smelt spend most of their life in the ocean and return to the Columbia River and some tributaries to spawn. It's been nearly 50-years since there's been a smelt harvest in the Sandy River four years in a row.