Tuesday, April 02, 2019

Mutiny Bay

The low shoreline of Mutiny Bay once consisted of a complex series of wetlands, tidal inlets, and northerly-directed sand spits. But these low areas also lend themselves to development. Wetlands were diked and plumbed and tide-gated. Inlets were filled in. And small fishing resorts, and later residential beach communities, were built on the spits. But the whole place is still little more than a big bunch of shifting sand bars. And there is a lot of sand in this system, particularly compared to many other beaches on Puget Sound.

There is a boat ramp at the end of Robinson Road (Mutiny Bay: February 2010), but like some other ill-fated boat ramps on South Whidbey (Maxwelton: July 2016), the ramp is regularly, and increasingly, buried by the accreting beach. Clearing it has turned from minor maintenance to a major earthmoving operation. And that practice may have other affects on the beach - and even if it doesn't, nearby changes are quickly attributed to the most obvious culprit, which is the county guy in the backhoe. It's harder for people to see the bigger picture, which is a complex system undergoing big changes over relatively long periods of time.

There are other complications, too. There's an outfall (which substitutes for the historic tidal inlet) right next to the ramp that at times is completely buried, but at others flows vigorously, rearranging the beach in the same location as the boat ramp. And then half a mile downdrift (north), there's an old pier that may have continuing effects on the beach both up and down drift.

This would make a great example of the problems with building on sand spits, except for the fact that there are other even better examples nearby. Sunlight Beach comes to mind, but so do Maxwelton, Columbia Beach, and Bell's Beach!



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