Saturday, January 21, 2006

I fear rivers over flowing

It's not that bad. The rains continue and the rivers are in flood, but the floods are pretty normal for this time of year. This picture shows a slough, a channelized flow that leads from the north end of Lake Sammamish in Redmond to the north end of Lake Washington in Kenmore. As you might tell from the sapling in the foreground, the slough flow is normally lower - about 1.3 meters (4 feet) lower, in fact. This picture was taken where NE 124th street crosses the slough, looking southwest (the glare in the distance is the setting sun around 4:30pm or so).

Flowing in from the left (from the east) is a small salmon stream that has been restored. The stream shows as a wiggle in the map. As you might imagine, a salmon stream has salmon in it. Salmon like wandering, cool streams so the stream was recently de-channelized: they put the bends back in, dropped some logs in the water to create snags, and planted saplings on the banks to shade and cool the water in the summer. We hope the salmon will return and prosper. They come all the way through Lake Washington.

More precisely, they come from Puget Sound into Lake Union and Portage Bay, through the Lake Washington Ship Canal, through Lake Washington, and into the slough. Pretty impressive. But these guys are stragglers compared to some of the other salmon that head up the Columbia River.

No comments: