I thought that Murat's discussion of the hydraulic analyses performed on the sewer mains was very informative.
I believe I recall that the "target areas" were selected because those were areas with about half of the sewer backups. I would like to see where backups have occurred in other parts of the city overlaid onto the maps, like the pre- and post- FDD maps. I think we need this for two reasons: First we need to reality check that backups that occurred would be expected by the analysis. Second, we need to pay attention to those areas to be sure we don't overlook any locations where residual risk is too high.
I would imagine this is part of the plan, but I wanted to to be sure.
Let me know whether this can be accomplished.
Thanks
Joe
Comments
Nick Hutchinson on 24 Mar, 2014:
Jim Osborn on 29 Mar, 2014:
Kathy Boris on 1 Apr, 2014:
I have the same question as Jim. Craig Hupy seemed to say that the added
flow that these townships were entitled to send our way had already been
factored in. Is this true? It seems unfortunate that these townships
that are entitled to add flow to our sanitary sewer system are generally to
the west of Ann Arbor. Their flow must cross the entire expanse of Ann
Arbor, through our aging sanitary sewer infrastructure, to get to the Waste
Water Treatment Plant which is located east of Ann Arbor.
kb