Canoeists must pull out and portage their watercraft around these obstructions . Many generations of beavers have lived in the slough, but with the low water levels in the last ten years, water flow is easily stopped by ambitious beavers. Students put in barricades to stop erosion at a slough park. The slough travels through industrial, business, residential, and park areas. Each area presents unique problems for the waters.
Industrial areas create pollution and erosion.
Business areas are a source of fast-food paper litter. Residential areas introduce grass clippings and scrap lumber to the water. Park areas concentrate people and result in littering, erosion, and wildlife disturbance. Students in the picture above are installing posts as barricades in Lion's Park. Lion's Park, an area with baseball fields, a soccer field, canoe launch, and picnic facilities, is next to the grounds of Anne Wien School.