Update 2022-02-21: For updates on the Valdosta trash situation, see https://wwals.net/issues/trash/.
Turns out the City of Valdosta already has a trash trap on one creek. It’s next to Baytree Road, upstream from Lake Sheri, on what I’m calling Sheri Run. The creek ends up in the Withlacoochee River, just upstream from the I-75 bridge. But, because of the trash trap, most of the trash does not reach Lake Sheri or the river, because it gets caught after it comes down from Valdosta Mall and all the restaurants and stores on St. Augustine Road.
Outfall of trash trap, 10:16:37, 30.8471573, -83.3288788