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I I I Council Meeting Minutes March 8, 1988 Project 88-9 (Birch Pond Condominiumls Storm Sewer) Proper reviewed the water overflow problem from the northeast cor- ner of County Road E and Silver Lake Road which are both county roads; stated Ramsey County has taken the position that storm sew- ers are a city's responsib~lity; Feasibility Study shows storm sewer is inadequate; looked at various alternatives; believes it is necessary to replace the pipe to route the water through the Salvation Army camp (southwest corner) and into Silver Lake to the Rice Creek drainage district; original culvert is 15" from north of County Road E to Birch Pond site; reviewed history of the Birch Pond project; and estimated the cost of storm sewer is $103,741.72 (or $5,812.77 per acre) which would be handled as a public improvement with special assessments to include the Birch Pond property. Proper indicated the timetable is to begin design immediately, the contract would be ready to go by May, completion of project in July, with the Special Assessment Hearing in August of 1988; and showed slides of the area. Proper received a letter from the County requesting the city to do some additional work on County Road E to build up more of a crown, for which the County agrees to pay full cost. In respo~se to Benke's inquiries about the cost ve~sus the size and length of the storm sewer, Proper stated: the proposed project uses graduated sizes of storm sewer pipe, ending with a 36" pipe (as confirmed by Barr Engineering) to handle the drainage; it is very expensive crossing Silver Lake Road (although the cost of tearing up Windsor Court would be much higher); and the project could be included in the County's Silver Lake Road (from Silver Lane to 1-694) improvement project in 1992 with an opportunity for savings, but the construction cost would be higher four years from now. In response to Benke's question regarding the city's liability if it were to continue to allow sandbagging on County Road E, City Attorney Kennedy indicated temporary measures are always a liabil- ity but he is more concerned if the engineer's report states this is a desirable solution and the city does not follow that advice. Williams asked what would happen if the 18" line on the south side of County Road E were extended further west and included more catch basins; Proper indicated the 18" is running at full capacity regardless of more inlets. Williams stated County Road E from 19th Avenue to the west needs drainage help and does not believe it is all the city's responsi- bility. Proper indicated the sewer at 19th Road E is upgraded (it is in the County's Five Year Plan). could be enlarged when County non-programmed section of the Page 5 Project 88-9 8:12-9:04pm