Amazon Channel - Storm Sewer - Laserfiche WebLink

New Search

HAMMITT Bob From: JENNINGS Carrie A To: HAMMITT Bob Subject: FW: Amazon Creek Date: Tuesday, September 01, 1998 1:20PM From: RITTER Dave P To: JENNINGS Carrie A Cc: SHUTT Gene; ZUCKER Richard Subject: RE: Amazon Creek Date: Tuesday, September 01, 1998 12:59PM Bob, August 1991 we cleaned from Oak Patch to Bailey Hill. I would venture to say that this was probably cleaning from one side to the other(everything). August 95 we cleaned from City View to Oak Patch. This was selective cleaning. We only removed silt and vegetation as needed. In most cases where you see the islands are areas that we could not reach everything from each side. Over the years they slowly build back up with silt. In the past there were some sections we would place the Cat in the bottom to remove the islands but that was selective and we haven't done that for many years. We really do not work on a maintenance cycle anymore. We analyze what is there and then try to do things "as needed". As needed would be selective vegetation removal, slides and minor build up. One thing that happens is once we have mowed, we often see sucker growth coming back the next year. If left alone, the next thing is that it is the status of the Acorn section. A better approach may be to mow certain areas every year to keep the vegetation down and out of site. We will update the history log and get you a copy. DR From: JENNINGS Carrie A To: SHUTT Gene Cc: RHAY Tim W; RITTER Dave P; MCVEY Fred; ZUCKER Richard; LANKSTON Jeff Subject: RE: Amazon Creek Date: Tuesday, September 01, 1998 9:29AM From: HAMMITT Bob Chris and I did look at one section of the Amazon Channel yesterday. We were too pressed for time to look at the other sections. Jeff, when you get some time I would like us to go look at a couple of sections of the channel. The section Gene refers to,just east of Danebo, is the silt bar we requested Engineering remove as part of the improvement project east of Danebo. Somehow it was omitted. It appears to be a bottleneck in the channel and we would still like to see it removed by contract. It is going to be difficult to complete the improvement project without damaging the bike path. The section of Amazon Channel that Chris and I looked at was between Acorn Park and Oak Patch Road. It seems to be the section with the most extensive restrictions. Dave and Richard, please look up your maintenance records and let me know when this was last maintained. I would also like to know the last maintenance cycle on the section west of Acorn Park and the section east of Oakpatch Road. They appear to be in substantially better condition and I wonder how much it has to do with the length of the maintenance cycle. Also, please update the Amazon Channel maintenance history log and give me a current copy. Chris is in agreement that we have to continue to maintain the Amazon Channel for its original purpose, flood control. We also have to be sensitive to environmental issues. One of the things we talked about was trying to perform maintenance more frequently to eliminate the sand bars and vegetation as they develop rather than waiting until they build up extensively. We would like to do a more extensive analysis of the lost capacity of the section between Oakpatch and Acorn Park. The drawings that Fred provided me, that were part of the basin analysis, don't appear to be what exists visually. I am not sure what techniques were used to develop those cross sections. Fred, could you work with Engineering and develop some actual data regarding lost capacity. We discussed relocating the bike path further south if it is possible to do so on City property. This would allow us to develop a wider channel cross section in order to maintain it in a different manner. If the bike path were not right on top of the channel, it would also help us perform maintenance without putting heavy equipment on the bike path. Jeff, I don't know what this would do to your existing bid process, but it does not make sense to overlay the Page 1