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<br />Continuing easterly then along Brooks, again a set of basins <br />is proposed to pick the water up, ~ore basins as we corne to <br />ChatsworL~ and Brooks, there will be more basins as we go along <br />Brooks Q~til eventually we come to just north of Transit where <br />again we meet the main outlet into the pond. Before I get into <br />the pond, I'd like to talk a little bit about a small facility <br />we propose to take care of this sheeting along Lexington Avenue <br />that goes directly into the lake, through a facility that, while <br />it won't solve all problems because it's fairly small, should <br />help in reducing the siltation problem and the bad material <br />being carried by the siltation in that water. If any of you are <br />familiar with the area near Lake Josephine and Little Josephine, <br />immediately up Lexington, facilities somewhat similar to this <br />were constructed and, according to the Rice Creek Watershed, <br />this is the most successful facility we have in ,that entire <br />area as far as producing an identifiable benefit. It's not a <br />cure-all, but it does help. <br /> <br />If we could now go to the pond. This isn't a purely engi- <br />neering drawing we're going to be discussing. It's more of a <br />visual aid. In other words, it's not drawn exactly to scale, <br />nor are the directions exactly correct. The idea is to help you <br />understand what's going to take place in the area. If right <br />about here was to be Transit - you'll notice it's somewhat high <br />in the picture - the ground slopes off toward Central Park and <br />toward the ponding we had talked about earlier. You'll notice <br />the bottoms of the homes are somewhat lower than the street and <br />then the ponding area is somewhat lower yet than the homes. <br />The thing' lId like you to note though is that this dash line. <br />shows that the ground continues to fall as it gets into the park <br />and if you would twist yourself a little mentally, then if you <br />were to assume that this would suddenly be Victoria over on the <br />extreme right of the screen, this then goes fairly flat for a <br />ways and goes up quite fast as it approaches Victoria. <br /> <br />The proposed ponding would be to fill in some of these back- <br />yards so that the backyards themselves would be above elevation <br />891.5. That was the 'highest the water got in 1978 when we had <br />two gigantic storms. It was therefore felt that this was a <br />reasonable elevation for the future because this area is built <br />up, except for half a dozen lots up near B-2.' There won't be <br />much change in the water drainage pattern. We also hope we're <br />not going to get those 1978 rains again very soon,. If the <br />probability is right, we have 150 years to wait before it hap- <br />pens again. Unfortunately, it doesn't work quite that regularly <br />and as scheduled. So we propose to fill the backyards, put <br />black dirt on top of that and then sod them so that the ya~ds <br />would no longer be the recipient of Bennett Lake's overflow. <br />We then would dig deeper than the existing ground with a gentle <br />slope to an elevation of roughly 882 so that we could have an <br />ar~a that could have water standing permanently. The reason <br />for this is that this is much more aesthetic, most people feel. <br />By having this depth of water, it prevents the sunshine from <br />coming all the way down to the bottom and causing particular <br />plant growths which cause everything to turn so green on the <br /> <br />7 <br />