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Staff describe upsized storm sewers, detention ponds on Burdick and Eleventh And A Half
Summary
A staff member said the project will replace undersized pipes with a 54-inch storm sewer, add detention ponds and use existing railroad-crossing infrastructure to speed runoff and reduce roadway flooding; staff noted the faster conveyance increases required storage and that signal and pavement work have separate completion dates.
A staff member described plans to replace undersized storm sewers and add detention ponds along Burdick and Eleventh And A Half, saying the work will move runoff more quickly into an existing conveyance system and require larger storage.
"We're replacing I think it's a 24 or a 36 with a 54 inches storm sewer," the staff member said, describing how piping will intercept drainage that previously ran over private property and through open channels in the Southwest Knowles subdivision.
The nut of the project, according to staff, is that piping surface flows into a larger, more direct system makes the network more efficient — but that efficiency requires more detention volume because water reaches the pond faster. Staff said the new sewer will extend uphill and that the project currently stops about 300 feet before a planned turn…
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