dewatering is not in the building code so we have no jurisdiction. finally the last slide is about our record retention policy. throughout the permitting and inspection process numerous documents are approved and issued. san francisco current record retention departments go above and beyond california building code. dbi is making them even stronger. dbi continues to update the policy for documents to make them centrally located and accessible. and just in the last 16 years we have recorded over 2 million documents. commissioners that brings an end my formal presentation. i am open to questions and i gladly welcome them. >> well, thank you very much assistant director for that presentation. i have a lot of questions for you. it's like the best seller for me last night going through and i wrote down the questions when i get to my questions but i would like to go to my other commissioners before me and do you have any questions commissioners? >> do you want me to start? >> yes please. thank you. >> i have a question regarding a special inspectors. i und

. >> dewatering. >> swamps, and who knows what you're dealing with. >> you might have a mobile forge.cks up out of the ground-- >> stephen: hmmm. i don't think we can show that on cbs, by the way. >> if a wall sticks up out of the ground-- >> stephen: again, i don't think-- i'll picture it. so what's your new number? >> about a trillion, close to. >> stephen: call it $1 trillion. >> i had read that less than half of the length of the border is actually covered on our side with parallel roads. >> stephen: probablyicism to just build a $2,000 highway while we're doing it. any idea what it would cost? >> i would say about the same price it would cost to build a wall. >> stephen: okay, so plus another trillion, because what is a highway, if not a wall on its side? so if we do just one crew of 40 laborers, how long does it take to build the wall? >> 742 years. ( laughter ) >> stephen: let's try to get that number down. we gotta get that down. >> if we gotta do it in four years-- >> stephen: we got three years and 11 months, right? we have three years and 11 months of the first trump admini