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Home My WebLink AboutSWP272172(2) „ : CITY OF RENTON rLL ,_ Mayor Jesse Tanner January 27, 2000 Mr.Kwai-shung Hsue 7515 SE 71 st St Mercer Island,WA 98040 SUBJECT: Lake Avenue South Flooding Dear Mr. Hsue: In response to your letter dated January 6, 2000, we investigated your concerns. In particular, we researched our records of maintenance crew responses on the dates that you reported the flooding occurred. Our records do not show that we had responded to any flooding in that area. Our records also do not report any problems in the vicinity of your property since 1996. If you recall, the Surface Water Utility installed new drainage improvements in both Lake Avenue South and South Tobin Street in 1996. These storm system improvements were done to prevent street ponding by increasing the storm system conveyance capacity along these streets. The improved storm system was designed to a standard that would have adequately conveyed any surface water runoff generated by the recent rain events. Street flooding could occur if debris (leaves) cover catch basin inlet grates, especially in the fall and early winter. This could cause water to pond in the street to a level to overflow the sidewalk onto private property. Our Maintenance Division crews conduct a citywide program in the fall to clean debris and leaves off catch basin inlets. During extreme storm events, our Maintenance crews routinely patrol for problem areas and respond to localized flooding. The Maintenance Division will add this street to their list of streets that need increased inspection and catch basin grate cleaning. We will look at the types of grates on the catch basins to see if a different type of grate could be used, which would help prevent debris from plugging the inlets. You are encouraged to periodically inspect the catch basins along your street frontage and remove any debris accumulated on the catch basin grate inlet. Also, please call our Maintenance Division at(425)430-7400, if you observe street flooding. The only other possible causes to the flooding of your basement would be high groundwater table, or if your basement has a floor drain that is connected to the storm system. You may want to inspect your basement to verify that you have no floor drains, or if you do, they should be connected to the sanitary sewer system. If you have any questions or concerns please call Mr. Mike Dotson, Surface Water Utility Engineering Specialist, at(425)430-7392. cerely, Jesse Tanner Mayor Referral#01-2000 cc: Jay Covington Gregg Zimmerman Jack Crumley Lys Hornsby(#2000-025) 1055 South Grady Way - Renton, Washington 98055 - (425)430-6500/FAX(425)430-6523 ,CX r,.._---......-;—cnor_--i—i mnt—mi 9n i nom consumer �"� �I �� l� � January 24, 2000 CONCUR ENCE Mr. Kwai-shung Hsue DATE al IN 7515 SE 71 st Street NAME I L/DATEm Mercer Island, WA 98040 S Yu SUBJECT: Lake Avenue South Flooding Dear Mr. Hsue: In response to your letter dated January 6, 2000, we have investigated your concerns. In particular, we researched our records of maintenance crew responses on the dates that you reported the flooding occurred. Our records do not show that we had responded to any flooding in that area. Our records also do not report any problems in the vicinity of your property since 1996. If you recall, the Surface Water Utility installed new drainage improvements in both Lake Avenue South and South Tobin Street in 1996. These storm system improvements were done to prevent street ponding by increasing the storm system conveyance capacity along these streets. The improved storm system was designed to a standard that would have adequately conveyed any surface water runoff generated by the recent rain events. Street flooding could occur if debris (leaves) cover catch basin inlet grates, especially in the fall and early winter. This could cause water to pond in the street to a level to overflow the sidewalk onto private property. Our Maintenance Division crews conduct a citywide program in the fall to clean debris and leaves off catch basin inlets. During extreme storm events, our Maintenance crews routinely patrol for problem areas and respond to localized flooding. The Maintenance Division will add this street to their list of streets that need increased inspection and catch basin grate cleaning. We will look at the types of grates on the catch basins to see if a different type of grate could be used, which would help prevent debris from plugging the inlets. You are encouraged to periodically inspect the catch basins along your street frontage and remove any debris accumulated on the catch basin grate inlet. Also, please call our Maintenance Division at(425)430-7400, if you observe street flooding. The only other possible causes to the flooding of your basement would be high groundwater table, or if your basement has a floor drain that is connected to the storm system. You may want to inspect your basement to verify that you have no floor drains, or if you do, they should be connected to the sanitary sewer system. If you have any questions or concerns, please call Mr. Mike Dotson, Surface Water Utility Engineering Specialist, at(425)430-7392. Sincerely, Jesse Tanner,Mayor cc: Gregg Zimmerman Jack Crumley Lys Hornsby(#2000-025) Myr01-2000 l l l3�Oo -5Pv�c L✓i� ,L7o-i .�'�74�o. �.lt,L RECEIVED '7EcE1V'e JAN 1 i "l4 BAN 12 2000 CITY OF RENT ON U!j� RENT PUBLIC WORKS ADMIN. sySTEM N Kwai-shung Hsue 7515 SE 7 I'' Street Mercer Island, WA 98040 January 6, 2000 Mayor Jesse Tanner ev City of Renton 1055 South Grady Way Renton, WA 98055 I !v O/z toy k1 t-,s k6 &V ?� Dear Mayor Tanner: I am sorry to inform you that the flood situation e a t ake shat street watreet in �er overflowed to n behind West Wind Motel still exists. There was average year the basement of my property (140 Rainier Ave So.) next to street drain since my last correspondence with the City in 1995 (please see the attached). I have noticed that there was not as much floodwater as used to in the area e Cityas r completely cured the problem m that area if the storm water system1999 under heavy overhauled. The most current notieeable floods were on November 6, rain with windstorm, and on December 15, 1999 the e problem atheavy lthat area. Thank youn. I wish that the ty r LIP. under your direction came up some plan to P Sincerely, lkn� Kwai-shung Hsue r/,��c- IA10 1 041'N /2641„Z7IetS /T 11�6[ooCP11�j I.J ��/5 �/LC-Iq WC Cf�Fclr6a 13At/r 1-742J 6+L L e D I l /? /oo ilk s �7 n .e Ga 1 z ✓d��c .� .1 e Sl;� 1 Cow Occ�r,��