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Jason Durr: I apologize I'm not familiar with the item done six years ago. I do know that 15 -20 <br />years ago we did lose a part of the riverbank at that exact site due to a similar problem. I don't know <br />why it didn't hold up after it was repaired. When we did the outfall inspection, we decided that it was <br />in dire need of repair. <br />Joann Sporleder: And how did you do the inspection? <br />Jason Durr: We actually had a couple of interns going out with GPS units and they came back to us <br />with questions and then we talked to our consultant and in this case it was Christopher Burke. We <br />asked them to do a more thorough inspection and come up with a solution in order to repair it ... What <br />[the interns] were doing was actually identifying all the outfalls by Global Position System so we <br />would know exactly where our outfall was and as part of that we asked the interns to do an <br />inspection. <br />Joann Sporleder: Have you looked at any other way to come at this problem since this bank is so <br />steep and so heavily wooded with mature trees which I find this very troublesome because its in the <br />middle of a park and the character of the park would be completely destroyed by this ramp thing <br />going down there. <br />Jason Durr: As I mentioned before, we had Christopher Burke look at different routes to get down <br />into that area. We even considered a route down the existing outfall pipe where it was pointed out to <br />us by Wayne Doolittle that there are less trees; however, by traveling down that section of the slope <br />we would be running over the top of the existing pipe and as the slope goes down the cover over the <br />top of the pipe is significantly reduced. Driving heavy machinery over a brick sewer could just <br />perpetuate the problem and cause a collapse. So we looked at many different routes to minimize the <br />tree removal and that was our ultimate goal. But it is a difficult location to get the minimal slope that <br />we need in order to get the equipment down the hill. <br />Joann Sporleder: I guess I'm confused at to the need for heavy equipment. What are you going to do <br />when you get down there with heavy equipment? <br />Jason Durr: Well, they'll have to set up and dig out areas and stabilize area outside. They'll have to <br />have a backhoe out there, an excavator, something on tracks, and something to lift and set to new <br />valve into the new structure. <br />Joann Sporleder: And then what is the need for this area in the pink going down to the river? <br />Steve Ernst: The secondary access ramp is to provide an access route for the contractor, in case he <br />needs to get down to the river level of the construction site and that area will be restored to the actual <br />grade there. <br />Joann Sporleder: Have you looked at the possibility of coming from the river itself so that riverbank <br />can be preserved and just coming up this ramp that is just supposed to be temporary? <br />Steve Ernst: Do you mean coming at it from a barge? One thing, we did not evaluate that, but I can <br />say that because of the scour pit formed by the force of the water, we couldn't bring a barge all the <br />way up to the construction point because of what we are terming a rock band that completely <br />encircles the outlet. It wouldn't be possible to float a barge all the way up to the outfall. <br />Joann Sporleder: But you could float it close enough because of the rock base there that you could <br />unload the heavy equipment right onto the base especially in low -water times? <br />March 20, 2006 HPC Minutes_Monthly .doc [Preliminary] Page 6 <br />