REMINDER: Starting the week of March 17, construction crews will begin drilling boreholes in Buena Vista Park to collect data on the subsurface conditions around the park for upcoming project work. This work will involve short, intermittent trail closures and detours at various areas around the park while boreholes are being dug.
During drilling the geotechnical engineers will mark off a work area at each location approximately with delineators and tape. They will post “work ahead” and/or “trail closed” signs as needed to maintain pedestrian traffic away from work zones.
While moving between work zones and during loading and unloading the geotechnical engineers will use spotters to navigate equipment and manage pedestrian and vehicle traffic. RPD team members will be on site during work hours to support and monitor the effort.
Workers will use a specialized, low-dust drilling rig truck to minimize noise and air quality impacts. Our goal is to keep trail disruptions to a minimum.
Sampling work will happen in two phases over the course of about a week. First, crews will dig 22 shallow borings across the park. As each shallow borehole is sampled and refilled, trail closures and detours will adjust accordingly.
Once work on the shallow borings is complete, the crew will complete four deeper borings near the tennis court and near the maintenance yard.
During soil sampling, excess soil will be safely stored in 55-gallon drums near the maintenance yard until the work is complete.
If you have any questions, please feel free to reach out.
Omar Davis, Project Manager, omar.davis@sfgov.org
For more information, please visit the project webpage >>