This guest blog post was written by Josh Sonnenfeld, Campaign Manager for Save the Bay. This post is cross-posted from Save the Bay’s blog, one of the handful of environmental blogs I read regularly. If you care about the Bay, you should be reading it too.
A gem at the heart of Oakland, Lake Merritt has been many things – the nation’s first wildlife refuge, beloved waterway, sewage-filled cesspool, and even the rumored home to a lake monster. There’s one thing that Lake Merritt has never been, however – and that’s a lake.
What we now call Lake Merritt has for most of the past ten thousand years been a tidal lagoon where the waters of several East Bay creeks met the brackish tides of the Bay. Ringed with mudflats and tidal marsh, this lagoon was home to an abundance of native wildlife, including hundreds of species of birds.
This changed dramatically in 1869 as Oakland Mayor Samuel Merritt dammed the channel connecting the lagoon to the Bay. Later becoming the 12th Street Bridge, the lagoon’s water was forced through narrow culverts on its way in and out of the Bay, significantly reducing circulation and largely disconnecting the waterway from the rest of our great estuary. Continue reading
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