on the half block section of columbus between union and filbert, and only one lane of traffic was closed at a time for this utility work. the construction of the retrieval shaft is scheduled to again 2013, and will be completed in approximately 10 months. the retrieval shaft excavation will require the closure of two lanes on columbus avenue. to minimize effects of construction we have employed a variety of measures including traffic control and daily street sweeping. the agency decided to move forward with the utility relocation of the proposed columbus street retrieval shaft to meet contractual and grant funding obligations. in the meantime, we've also reviewed four options. some of the residents and business owners in north beach expressed concern that the north beach retrieval shaft work if if carried out as planned would impact the neighborhood without providing benefits of an enhanced public transportation system. the community [speaker not understood] project team to evaluate options and the options evaluated includes included a number of criteria. and including the impediments to