At the southwest corner of the Fort Seward parade grounds, work started Monday on two crescent-shaped “bioswales,” subterranean catchments aimed at preventing pollutants in plowed snow from entering Portage Cove.
Takshanuk Watershed Council executive director Meredith Pochardt watched Monday as a Haines Borough crew filled a three-foot-deep trench with three-inch rocks. Wrapped in a geotextile fabric, the rocks are intended to capture sediments, road grease and salt in an area where loads of snow are…