San Francisco’s Favorite Outdoor Volunteer Program
Those of you who frequent the western slopes of Mt Sutro may have noticed some changes to the Upper Historic Trail.
As the Hydrology and Trails Intern with the Sutro Stewards, I have been working since November on designing and testing new ways to keep water from pooling on the trails. I had my first chance to put in a test treatment on the February 4th volunteer day when a small crew and I refinished a ten-foot patch on the Upper Historic. We scraped off the organic debris that had accumulated on the trail and layered and packed sand and gravel to allow drainage. The next day I set up water gauges so I could monitor the precipitation near the test section as well as on other sites on the mountain. I’ve been watching it ever since.
The test section has fared the winter storms well but the summer is when it will really be put to the test. The Eucalyptus cover on the westward side of the mountain generates a tremendous amount of fog-drip, causing the trails to get wet and mucky, a condition we are all too familiar with. In another month or two we'll know for certain who well the little trail patch survives Mt Sutro.
It's doing great!
Much thanks to my excellent February 4th workday crew: Doug, Derek, Jason, and Alex.