In July 2013, heavy rains in Cleveland caused a retaining wall inside the Terminal Tower for the Regional Transit Authority (RTA) train to collapse. It was estimated that between repairs and lost ticket sales, the occurrence of this highly unlikely event was going to cost the city about $\$ 350,000$. It had been about 15 years since a similar accident occurred, and the statistics jocks estimate that something like this should only occur once every 25 years. The city has proposed rebuilding the wall with an additional special storm sewer line that would prevent the retaining wall from ever collapsing again. Of course, the problem is that the storm sewer upgrade would cost an additional $\$ 35,000$, and would also require annual maintenance of about $\$ 1,000$ per year. Given that the storm sewer upgrade could reasonably be expected to have a life of 15 years before it has to be replaced, should the storm sewer upgrade be implemented? Assume the repairs are funded with bond money paying $5 \%$.