Did you know the hills of Seattle used to be steeper than
the hills of San Francisco? During the late nineteenth and early twentieth
centuries, immense projects using water cannons washed dirt down from the tops
of the hills. More earth was moved in these projects than in the digging of the
Panama Canal.
Too High & Too
Steep: Reshaping Seattle’s Topography by David B. Williams chronicles these
projects in fascinating detail. Of course, the houses and other buildings on
these hills had to be moved. The cover shows the “spite hills.” These were what
were left partway through the project, when people were refusing to leave.
This is one of a number of real photos of the hills
The height of those leftover hills show the original height
of that part of Seattle. For you locals, if you’ve ever puzzled over the term “Denny
Regrade,” that’s where the term came from: Denny Hill in Seattle was regraded
more than once. From the tallest point of the original Denny Hill, over one
hundred feet has been removed.
Where did the dirt go? It was dumped into Elliott Bay, part
of Puget Sound. Part of it makes up the land between Seattle and West Seattle.
As you can imagine, geologists are concerned about that land slumping into
Elliott Bay during an earthquake.
If you’re not familiar with Lake Union, it’s a sizable lake
inside Seattle. It used to be landlocked. Canals were dug connecting it to Lake
Washington to the east and Puget Sound to the west. When that happened, Lake
Washington lowered dramatically. If you’ve ever shopped in University Village,
it used to be underwater. Sand Point, which had a Naval base for a long time, roughly
doubled in size. And people realized there was a nice beach on the Eastside
suburbs of the lake, named it Juanita Beach, and tourists flocked there (though
it is now part of Kirkland).
Back to flushing dirt off the Seattle hills. Was it worth
it, to force those people out of their homes, to have this massive government
project to lower the hills, and to dump the dirt into Elliott Bay? David B.
Williams says no. Private enterprise, in the form of the motorcar becoming more
common, would have made transportation on the hills fairly easy.
So it was a huge government boondoggle. We have something
similar going on now, with massive tunnels being dug beneath Seattle for
commuter trains, a project that is way behind time and massively over budget, though
the private enterprise solutions of Uber and driverless cars are rendering that
project obsolete. But that is another story.