Photo: San Francisco Department of Public Works (DPW) employees begin fixing chips and cracks on the entire Hidden Garden Steps site (16th Avenue, between Kirkham &amp; Lawton streets, in San Francisco&#39;s Inner Sunset District) July 22, 2013. (Entire section of concrete in lower left-hand corner was finished on the first day.) Completion of these repairs and addition of retaining walls as part of erosion-control efforts are among the final major tasks to be completed before the 148-step ceramic-tile mosaic by project artists Aileen Barr and Colette Crutcher can be installed. For more information about the Hidden Garden Steps project, please visit http://hiddengardensteps.org and/or follow us on Twitter (@gardensteps), Facebook (Hidden Garden Steps), and Google+.