Archive for the ‘oakland water’ Category

Triple creek junction

17 March 2015

A while ago I featured the casting ponds at McCrea Memorial Park, in the valley of upper Lion Creek. I didn’t poke further downstream at the time, but since then I have. The creek runs alongside a pair of small concrete “trout ponds,” cunningly made with cobble-lined runnels that would send a lifegiving trickle through them if there was enough streamflow, which there isn’t, to sustain fish, which there aren’t any of.

leonack-troutponds

The lower pond did have enough water in it to interest a mallard couple. The male kept watch on me as the female gorged on duckweed.

To the left of that photo, just over a low ridge and behind a fence, the iron-stained waters of Sulfur Mine creek exit a pipe.

sulfurmineck-outlet

Farther down, it joins Lion Creek and the combined watercourse enters a tunnel beneath the Warren Freeway. I haven’t gone into it, but people clearly do.

sulfurmine-lion-ck-junction

If you cross the freeway on the little-used pedestrian overpass, you might expect to find the creek on the other side. Instead you’ll see Horseshoe Creek coming out of its canyon in Leona Heights Park and entering its own final conduit.

horseshoeck-mouth

Where the two creeks meet must once have been a cheerful place. Today it must be a black and dismal one, visited only by rare daredevils. If the tunnels aren’t screened, perhaps they can crawl all the way down to where Lion Creek reemerges, at Lake Aliso at Mills College, in a wretched feat of urban spelunking.

Seminary Creek at Mills College

14 February 2015

The third creek running through Mills College is Seminary Creek. It gets its name not just from Mills, but from the Beulah Heights district that forms its headwaters. On the 1897 USGS topo map it’s the dashed blue line, signifying an intermittent stream, running due south to East Creek (now named Lion Creek).

mills-SemCk-topo

Nowadays it’s almost entirely culverted. Not only that, it’s been kidnapped! The Oakland Museum of California’s creek map shows the creek as being redirected away from Lion Creek. Today it runs just north of Seminary Avenue to a channel called East Creek Slough.

lion-seminarycreekmap

What glory the creek still has today is evident only on the Mills College grounds. It ducks between lobes 6 (Maxwell Park) and 7 (Mills) of the Fan next to MacArthur Boulevard, but a close look at the topography suggests that a landslide or earthquake could easily have made it spill to the east of lobe 7 (past the triangle marked “30” on the stream map). Be all that as it may, the creek daylights just where MacArthur curves west.

mills-SemCk-intro

It then wanders a couple hundred yards through a nice quiet forest, mostly eucalyptus. Other than putting a parking lot over half its course, the college appears to have left Seminary Creek alone.

mills-SemCk

When it hits MacArthur, at 57th Avenue, Seminary Creek disappears. Here’s the last sight of it, from the MacArthur side. Here’s where the stream got kidnapped.

mills-SemCk-outro

I’ve taken photos of the creek farther downstream, but it’s a nondescript ditch and now I feel sorry for it. So I’ll spare you.

Interestingly, the old map showed the creek as intermittent, but I’ve never seen it dry even after our three-years drought. As I mentioned about Chimes Creek, I think undergrounding Seminary Creek has kept it from evaporating.


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