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. . . , MAYOR CRICHTON: Dr. Woodburn (inaudible) on that subject before we finish. COUNCILMAN WOODBURN: Mr. Christoffersen, has there been any flooding or ponding during any heavy rains that are inade- quately taken care of? MR. CHRISTOFFERSEN: Yes sir. On various occasions, particularly in 1978, the ditch along the west side of Lexington Avenue was flooded because primarily of the restriction of the 42 inch pipe, the freeway was flooded. That's where the prime source was. There was also flooding at the intersection of County Road F and Lexington Avenue in that location. The County, by the way, plans to construct catch basins in this area. MR. WAYNE SERKLAND: Those immediate local problems could have been solved by a change in culvert sizing in the areas draining those particular - you said it's a 42 inch culvert, I assume . . . MR. CHRISTOFFERSEN: It's a 42 inch storm sewer when it reaches Grey Fox Road. That storm sewer was constructed in 1960. The design criteria when that was constructed, I have not been able to locate that. This was, if I'm not mistaken, my records indicate it was constructed bv the Minnesota Department of Transportation when they were constructing the freeway system. MAYOR CRICHTON: Before we go on, just let me make sure I understand, Mr. Christoffersen. There was an implication in your statement that if the County was not going to upgrade Lexington Avenue and fill in that ditch then we wouldn't need to do anything. Is that what you meant to imply? MR. CHRISTOFFERSEN: I suppose that you wouldn't have to do anything. I think the important thing is that if Lexington Avenue is to be upgraded, the storm sewer is necessary. Storm sewer is necessary anyway. MAYOR CRICHTON: Perhaps Dr. Woodburn can . . COUNCILMAN WOODBURN: I have another question (inaudible). We go back from 1970 on this first project. The first indica- tion that something needed to be done here, would need to be done, was in 1970. So to carry this on, there has been, as . you say, some flooding. There has been some flooding as it is. That is one of the reasons for upgrading the system. And then, as Mr. Christoffersen said, as we get further development, I would assume that it is inevitable that there will be a certain increase in run-off during heavy periods of rain, despite the best efforts to pond this. Since we have had flooding before, what would this increased run-off and development have to do with the present state of adequacy or inadequacy of the storm system? 7