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HomeMy WebLinkAbout72 Development Permit 536 College Station Business CenterL ~ • McCLURE ENGINEERING, INC.---------..... March 10 , 2000 Mr. Jeff Tondre, P.E. Civil Engineer City of College Station P.O. Box 9960 College Station, Texas 77842 Re: Addendum to Drainage Report for the Business Center at College Station Phase Two and Three , November 1999 Dear Jeff: The original study made assumptions about the street configuration. This included looping Technology Way. The most current information we now have is that Technology Way will end with a cul-de-sac at the end of the Stata Corporation's property and that storm water from Lakeway Drive will be conveyed to the existing stream by an earthen channel. Future development , like Destia, will construct a storm drain system that will connect to the storm drain system along Lakeway Drive. I am sending revised Exhibits B, C-lA, C-lB, C-2 , and C-3 based on the latest street configuration. These should be added to the existing report dated November 1999 and approved on November 22 , 1999. The original exhibits should be retained since they include design information for Phase 2. Please note that the drainage areas along Lakeway Drive did not change compared to the original report. If you need additional information or have any questions , please do not hesitate to call. Sincerely, Steven C. Franks, P .E. Design Engineer ~~~~\~ ...... *··~ *·· ··* .~:: ........•..• :~~ XC: Joe Schultz, P.E. -Texcon attachments 1008 Woodcreek Drive , Suite 103 • College Station , Texas 77845 (409) 693-3838 •FAX (409) 693-2554 •email: mcclure@tca .net ·-:; := ·'..:. . .. . -·"' <, .. · (('·, "'"' ..... . ,. ~ c a:: UJ ct: ct: Q. ..J UJ UJ 0 ct: I-(!) a:: ..J ii: z ct: UJ UJ ct: ..J ~ ct: I-:::E z ct: "' UJ ~ ::::> I-c UJ > 0 z a:: c ct: c I-::::> ct: ~ Q. NO. AC. 0.4 0.8 0.9 01 2.23 2.06 0.00 0.17 02 2.40 2.24 0.00 0.16 03 0.67 0.28 0.00 0.39 04A 0.56 0.35 0.00 0.21 048 0.52 0.33 0.00 0.19 05A 0.45 0.24 0.00 0.21 058 0.63 0.44 0.00 0.19 E2 3.49 3.39 0.00 0.10 E3 2.71 2.65 0.00 0.06 E4 2.62 2.56 0.00 0.06 E5 2.35 2.23 0.00 0.12 E6A 2.60 2.54 0.00 0.06 E68 2.27 2.18 0.00 0.09 E7A 0.33 0.21 0.00 0.12 E78 0.48 0.19 0.00 0.29 EXHIBIT C-1A (PHASE 3) Rational Formula Drainage Area Calculations -Existing Conditions College Station Business Center ~ ~ 0 0 ~ ~ ..J ..J LI. LI. 0 0 c c ..J ..J ct: z z LI. LI. ~ (.) 5 ::c: 5 a:: ::c: a:: ..J UJ I-UJ u ~ u ~ a:: I-a:: ..J ~ (!) ~ ..J 0 I-UJ (!) cj UJ ..J ..J UJ 0 0 >z > ct: ::::> z ::::> ..J UJ -; "' a It) 0 .... I-o~ 0 LI. (!) ~ (!) ~ > (.) ::::> ~ ~ 0 !: 0 ft. ft. ft. ft. ft/s min min In/Hr cfs In/Hr cfs In/Hr cfs 0.98 785.0 11.0 91.0 1.3 0.9 16.3 16.3 4.97 4.9 6.1 6.0 6.9 6.7 1.04 886.0 14.0 98.0 1.3 0.9 17.4 17.4 4.80 5.0 5.9 6.2 6.7 7.0 0.46 30.0 0.3 475.0 6.0 2.0 4.3 5.0 8.22 3.8 9.9 4.6 11.0 5.1 0.33 50.0 0.5 300.0 2.3 1.4 4.1 5.0 8.22 2.7 9.9 3.2 11.0 3.6 0.30 50.0 0.5 250.0 1.5 1.3 3.9 5.0 8.22 2.5 9.9 3.0 11.0 3.3 0.29 50.0 0.5 300.0 2.3 1.4 4.1 5.0 8.22 2.3 9.9 2.8 11.0 3.1 0.35 50.0 0.5 250.0 1.5 1.3 3.9 5.0 8.22 2.9 9.9 3.4 11.0 3.8 1.45 950.0 14.0 125.0 0.8 0.9 19.8 19.8 4.45 6.4 5.5 8.0 6.2 9.0 1.11 762.0 8.0 50.0 0.3 0.7 18.1 18.1 4.69 5.2 5.8 6.4 6.5 7.3 1.08 745.0 12.0 25.0 0.2 0.9 14.1 14.1 5.36 5.8 6.6 7.1 7.4 8.0 1.00 587.0 8.0 188.0 2.6 1.0 13.2 13.2 5.54 5.5 6.8 6.8 7.6 7.6 1.07 848.0 12.5 25.0 0.2 0.9 16.7 16.7 4.90 5.2 6.0 6.4 6.8 7.3 0.95 735.0 12.5 25.0 0.4 0.9 13.5 13.5 5.49 5.2 6.7 6.4 7.6 7.2 0.19 100.0 1.0 188.0 2.6 1.3 3.7 5.0 8.22 1.6 9.9 1.9 11.0 2.1 0.34 10.0 0.1 400.0 2.4 1.5 4.6 5.0 8.22 2.8 9.9 3.3 11.0 3.7 It) It) N 0 ~ 0 ~ In/Hr cfs In/Hr 7.9 7.7 9.0 7.7 8.0 8.7 12.5 5.8 14.1 12.5 4.1 14.1 12.5 3.8 14.1 12.5 3.6 14.1 12.5 4.3 14.1 7.2 10.3 8.1 7.5 8.4 8.5 8.5 9.1 9.6 8.7 8.7 9.9 7.8 8.3 8.8 8.7 8.3 9.8 12.5 2.4 14.1 12.5 4.2 14.1 0 0 0 0 It) 0 .... 0 !: 0 cfs In/Hr cfs 8.8 10.1 9.9 9.0 9.8 10.2 6.5 15.8 7.3 4.6 15.8 5.2 4.3 15.8 4.8 4.0 15.8 4.5 4.9 15.8 5.5 11.7 9.2 13.3 9.5 9.6 10.7 10.3 10.8 11.7 9.9 11.1 11.1 9.5 10.0 10.7 9.3 11.0 10.5 2.7 15.8 3.0 4.8 15.8 5.3 3/10/00 CS8S-IN-ph3.xls Exhibit C-1 A ~ c ~ w ct: ct: Cl. ...J w w 0 ct: ...... (!) ~ ...J ii: z ct: ct: w ...... w z ...J > en :E ct: w ct: w ~ ::::> ...... cw c > 0 z~ ct: c ...... ::::> ct: z Cl. NO. AC. 0.4 0.8 0.9 01 2.23 0.30 1.76 0.17 02 2.40 0.24 2.00 0.16 03 0.67 0.28 0.00 0.39 04.1 2.55 1.32 0.00 1.23 04A 0.56 0.35 0.00 0.21 048 0.52 0.33 0.00 0.19 05A 0.45 0.24 0.00 0.21 058 0.63 0.22 0.22 0.19 E2 3.49 0.20 3.19 0.10 E3 2.71 0.12 2.53 0.06 E4 2.62 0.14 2.42 0.06 E5 2.35 0.23 2.00 0.12 E6A 2.60 0.12 2.42 0.06 E68 2.27 0.18 2.00 0.09 E7A 0.33 0.21 0.00 0.12 EXHIBIT C-1 B (PHASE 3) Rational Formula Drainage Area Calculations -Proposed Conditions College Station Business Center ~ ~ 0 0 ~ ~ ...J ...J LL LL 0 0 c c ...J ...J ct: z z LL LL ~ () :3 :I: :3 ~ :I: ~ (3 (J ...J ~ ...... w ...... w ...... (J ct: ~ ...J I= (!) I= ...J 0 ...... w (!) u ...... >z w ...J ::::> z ::::> ...J ...J w c 0 > ct: w iii en 0 It) c ..... ...... o~ 0 LL (!) ~ (!) ~ > () ::::> ~ !!? a !: a ft. ft. ft. ft. ft/s min min In/Hr cfs In/Hr cfs In/Hr cfs 1.68 785.0 11.0 91.0 1.3 0.9 16.3 16.3 4.97 8.4 6.1 10.3 6.9 11.6 1.84 886.0 14.0 98.0 1.3 0.9 17.4 17.4 4.80 8.8 5.9 10.9 6.7 12.3 0.46 30.0 0.3 475.0 6.0 2.0 4.3 5.0 8.22 3.8 9.9 4.6 11.0 5.1 1.64 150.0 1.0 300.0 0.3 0.6 12.3 12.3 5.74 9.4 7.0 11.5 7.9 12.9 0.33 50.0 0.5 300.0 2.3 1.4 4.1 5.0 8.22 2.7 9.9 3.2 11.0 3.6 0.30 50.0 0.5 250.0 1.5 1.3 3.9 5.0 8.22 2.5 9.9 3.0 11.0 3.3 0.29 50.0 0.5 300.0 2.3 1.4 4.1 5.0 8.22 2.3 9.9 2.8 11.0 3.1 0.44 50.0 0.5 250.0 1.5 1.3 3.9 5.0 8.22 3.6 9.9 4.3 11.0 4.8 2.72 950.0 14.0 125.0 0.8 0.9 19.8 19.8 4.45 12.1 5.5 15.0 6.2 17.0 2.13 762.0 8.0 50.0 0.3 0.7 18.1 18.1 4.69 10.0 5.8 12.3 6.5 13.9 2.05 745.0 12.0 25.0 0.2 0.9 14.1 14.1 5.36 11.0 6.6 13.4 7.4 15.2 1.80 587.0 8.0 188.0 2.6 1.0 13.2 13.2 5.54 10.0 6.8 12.2 7.6 13.8 2.04 848.0 12.5 25.0 0.2 0.9 16.7 16.7 4.90 10.0 6.0 12.3 6.8 13.9 1.75 735.0 12.5 25.0 0.4 0.9 13.5 13.5 5.49 9.6 6.7 11.8 7.6 13.3 0.19 100.0 1.0 188.0 2.6 1.3 3.7 5.0 8.22 1.6 9.9 1.9 11.0 2.1 It) It) 0 ~ In/Hr cfs 7.9 13.3 7.7 14.1 12.5 5.8 9.0 14.8 12.5 4.1 12.5 3.8 12.5 3.6 12.5 5.4 7.2 19.5 7.5 16.0 8.5 17.3 8.7 15.7 7.8 15.9 8.7 15.2 12.5 2.4 c c c c c It) c ..... !!? a !: a In/Hr cfs In/Hr cfs 9.0 15.1 10.1 17.0 8.7 16.0 9.8 18.0 14.1 6.5 15.8 7.3 10.2 16.7 11.5 18.8 14.1 4.6 15.8 5.2 14.1 4.3 15.8 4.8 14.1 4.0 15.8 4.5 14.1 6.1 15.8 6.9 8.1 22.1 9.2 25.0 8.5 18.1 9.6 20.4 9.6 19.6 10.8 22.1 9.9 17.8 11.1 20.1 8.8 18.0 10.0 20.3 9.8 17.2 11.0 19.4 14.1 2.7 15.8 3.0 3/10/00 CS8S-SO-ph3.xls Exhibit C-18 ~ . ~o ~~ ~~ Dl 02 03 04A 04B 05A 05B E2 E3 E4 E5 E6A E6B E7A E7B ~ ... < ~ 4.1 = Cl) c ~ ... ·-4,j = > ... o~ 02 E2 05A NA NA NA NA E3 E4 E6A E6B NA NA NA NA 0 = t = 4.1 Cl) = = ·; ... ~ cfs 6.7 7.0 5.1 3.6 3.3 3.1 3.8 9.0 7.3 8.0 7.6 7.3 7.2 2.1 3.7 ... 4.1 > 0 t' ... = u 0 0.0 0.6 0.0 0.0 0.0 0.0 0.0 1.3 0.0 0.0 0.0 0.0 1.5 0.0 0.0 ~ = ~ .... = 0 "; .... = E--6.7 7.5 5.1 3.6 3.3 3.1 3.8 10.4 7.3 8.0 7.6 7.3 8.7 2.1 3.7 .c .... "O ~ .... 4.1 4.1 ... .... 00 56 56 56 47 47 47 47 56 56 56 56 56 56 56 56 .... 4.1 4.1 ... .... 00 -"O ,= 4.1 =" --·= 4.1 c::r c. 4.1 = ~ 00 0.4% 0.5% 0.2% 0.1% 0.1% 0.1% 0.2% 1.0% 0.5% 0.6% 0.6% 0.5% 0.7% 0.0% 0.1% EXHIBIT C-2 (PHASE 3) INLET COMPUTATIONS College Station Business Center ~ z .... 4.1 = ~ .... 4.1 = ~ .... = 0 "; .... ~ D1 I 6.7 02 I 7.5 03 I 5.1 NIA 04 I 6.9 NIA 05 I 6.9 E2 I 10.4 E3 I 7.3 E4 I 8.0 E5 I 7.6 NIA E6 116.0 NIA E7 I 5.8 DESCRIPTION Recessed Inlet on Grade Recessed Inlet on Grade Recessed Inlet on Grade Recessed Low Point Inlet Recessed Low Point Inlet Recessed Low Point Inlet Recessed Low Point Inlet Recessed Low Point Inlet Recessed Inlet on Grade Recessed Low Point Inlet Recessed Low Point Inlet ~ ~ ... 4.1 ~ ~ u -0 c::r ~ ~ "O 4.1 "O ·;;: = ... ~ ~ Curb Inlet cfs I ft I ft 0.62110.92 I 10 0.62112.181 10 0.621 8.23 I 10 2.33 I 2.97 I 5 2.33 I 2.97 I 5 2.33 I 4.44 I 5 2.3313.121 5 2.33 I 3.42 I 5 0.62112.371 10 2.33 I 6.84 I 10 2.33 I 2.49 I 5 ... .c • 4.1 .... ~ .? c. . 0 4.1 00 ..... ~ ~ I. "O ~ ... 4.1 • = "O ~ u = < 0 ~ u "O 4.1 ... ·-= c::r ~ = 4.1 ... < "O 4.1 "O ·~ ... ~ ~ ... < Grate Inlet 0.6 1.3 0 0 0 0 0 0 0 0 1.5 0 0 0 0 ft I cfs I sq-ft I sq-ft 3/10/00 CSBS-IN-ph3.xls Exhibit C-2 < 0 ~ u z ~ ~ g ~ < ~ ~ ~ 0 0 ~ CJ ~ ~ ~ # # Ac. min 01 02 1.7 16.3 02 E2 4.0 17.4 03 02 0.5 5.0 04.1 04B 1.S 12.3 04A 04B 0.3 5.0 04B 05B 2.3 12.3 05A 05B 0.3 5.0 05B HW1 3.0 12.5 E2 E3 S.7 19.8 E3 E4 8.8 20.1 E4 ESB 10.9 20.3 ES ESB 1.8 13.2 E6A ESB 2.0 1S.7 ESB E7B 16.5 20.5 E7A E7B 0.2 5.0 E7B OUT 1S.7 20.S EXHIBIT C-3 (PHASE 3) PIPE SIZE CALCULATIONS College Station Business Center = Cf) ·-= « <ll G.I Cf) « s ~ ·-G.I G.I <ll Q. Q. G.I loo "O ~ <ll ~ 0 0 G.I G.I -.... .... "O Q. loo 00 00 <ll ·-= G.I ~ G.I = = .... .... c... ~ 0 <ll « ·-Cf) "O :f; .:. :f; 0 :f; .... ·-CJ <ll = 0 "O 0 Q 0 ·-G.I = -< fi: fi: loo ~ ~~ z ~ yr cfs cfs # cfs O/o " 100 17.0 21.2 1 21.2 1.02 100 39.0 39.0 1 39.0 0.40 100 7.3 9.1 1 9.1 0.19 100 18.8 23.5 1 23.5 32.66 100 5.2 S.5 1 S.5 2.50 100 2S.O 2S.O 1 2S.O 0.81 100 4.5 5.S 1 5.S 1.87 100 34.2 34.2 1 34.2 0.80 100 S1.5 S1.5 1 61.5 0.43 100 80.5 80.5 1 80.5 0.74 100 98.5 98.5 1 98.5 0.54 100 20.1 25.1 1 25.1 1.42 100 20.3 25.4 1 25.4 38.25 100 148.3 148.3 1 148.3 1.23. 100 3.0 3.8 1 3.8 0.85 100 149.7 149.7 1 149.7 O.S7 *Includes 25% Flow Increase for pipe sizes <2T' dia. **See Plan & Profile for pipe slope used (Pipe slope >or= Friction slope) ~ ~ ~ ~ 00 fps 24 6.8 3S 5.5 24 2.9 13 25.5 13 7.0 27 S.5 13 S.1 30 7.0 42 6.4 42 8.4 48 7.8 24 8.0 13 27.5 48 11.8 13 4.1 54 9.4 G.I s = ·-"O ~ ~ = ~ ~ = ~ c,!) -~ G.I z ;;i.. @ 9 ~ ~ = loo CJ ~ ~ ~ ~ I min min I I 226 0.56 1S.84 159 0.48 17.83 59 0.34 5.34 13 0.01 12.33 13 0.03 5.03 50 0.13 12.45 13 0.04 5.04 500 1.20 13.SS 96 0.25 20.07 11S 0.23 20.30 107 0.23 20.52 134 0.28 13.48 13 0.01 1S.75 59 0.08 20.S1 13 0.05 5.05 8 0.01 20.S2 3/10/00 CSBS-SD-ph3.xls Exhibit C-3 MAY . 1 4 '9 8 CTHUJ 08 : 53 WA LLA CE GROUP 2 54 77 2869 1 bEVELOPllENT SVCS PAGE. 2/3 .-' . 04/J0/98 18:&4 !!'409 764 3 498 COLLEGE STATION P.O . ar.i:ii:g~so • 1101 Tex:HA.,,.nU!I .April 9, 199i 'I1lc Wallaa: Group, Iuo. P .0 . Box 12007 Waeo, To:m 7fi7<n Atta.: Mr. Oo:irga li. Wn.lkat, Ir., 'P .E. r./o Tony Tomr:he.s!on Toi:. "409 764 3500 RE: City of Callege S1ation Buhinels Paik :&ad Pebble Crcdc DevelopnlMit C-orpor3rioo Dtai~ Study DC2C Mz. Watm: lD refereiaoe to the above projec:t. we have reviewed~ dramap ~port. and have :cYCnil IXllW\lflllts .' In the report you icdiQ\te that with~ development of 133.)4 acn::s m Pebble Cmek, i:Q1.ltA of Spcu:mat1 Drive. and odio· di::Yelopmc:nt Ui. the~ ibai there will bo zm inareu~ in ''ft.ter ~co elevniioo in .Alum Cn:ck. S~AC~l. Gi\'Cl '12.i!. )'OUC reoonunencWion is not to require det.erition for Pebble Creek iD thiJ area.. Iastcad, you RCCllmmtod c18Ql2fng the channel 1odion of undmbru.~ tbueby reduaUlg tho MauninQ'i: "n .. and dcdkiatinQ' a.~ ~er.tt lha1 will CA:WAin the fully-do-.dopcd 100..,car fJoodpluin. With. this 'clcmiil!g. ~ shaw only a. sl!sht (0.05 ") illcrCasC: m wal.cr !Nr&cc elc-raiion. Wbi!o WO undcrswid your f~datko .-~ lle sr:~ poi.am lW9 would like to add. l. S~ thDr8 w\11 not 'b. duntlao for Pebble ~ it is impcnlttw thst thci imprt:Mrl Maoniog'i ~n'" value be mamtamed SC U to ~no fil'lln11incrCl18tinwater1ar!iu c:k:vatiDa. r.n order to n'IAWtnin tboso improved '"n'" '113!uO!'I, rhc:rc will need to he ndeqa:i:e a.cca:11 tu the ene1c f'ot gleaning equipmeat aa WDll u usu.i:ante.'I lhiil no impedUnmits Wl'U oarur within the T OO~rear floodpl:U.n.. We have n::servationr ~garding maintnin iflg a ~d "n" valac Whc:\ the improwmPmf.!l m menily dccmRsed wgimrt.ion. I t is difficult tc a..uur= tlml nuWit.c:.uaacc scl\Cdu~ 'Vl"ill be adcqnat.o to ~tc this in the fu~. ~,.,. p•/.e'1 ,._ ~. wrr--'•~~ .4.,.., I"""' tf/./ /(lwl-/.•N • ~#Vllll Tn th! rspaet you ~that tbe Cit: of 9?Ilep Ststioa. Dra.inam.! 9':rliMDCC pllQW3 a. OM fQot. rite io the 100 yeqr WH'lt SUt'fMo ef.tNat.icms. 'Thia ~ent i1 DOt 1Dt3lly ~ The C~llege Station O~ st!1cs ""\Vbcn a repla=ry flood.way baa not been dMi~ ~ ~ C011Stmetion, mh!tantial improvcrMCl3, or oebar dcsvelq>meat. iaol~dma ~ sb:UI. be permittod wit!s ia mnim des?~ Al-.AJO and AB on tho Communlly's FIRM, unleu it is domomtndcd th"1 ~ cumllla1lve aftbcc of the ~osed. devekl~ Wilm combioC:d with an ether~ and ll.llticipated dewlopmem:. will nor lncns:iA tho walW .surflla: d~ aftba b~o flood~ than aae 1bot at any poim witldn tho a:mmtmity... St1c1.n1 AC-1 is dsBncd on. the FEM.A mM u AB with DO flood9iay detmmin.ed . lf-.,.r-. 3. 'I1ws bait~ tO usure that fimces or otber impcdimcntx to flaw ~ ralaa:d or noc.-alsrmt within this :floodplam. ls to either dcd icirtr: tho fully-developed 100-yr.ar floodplain ill oiibcr a. dcdicat.cd right..Qf'~way (''l'bcrein the r.ity wUald be the m&lnt.cnancc etmty) ar eommOa. area . (wh~ tlic ~eloper or a OOnicowner's anociaticn would ~c the~ C1rt.ity). r.o. · Home of Tel!Cas A&M University W2Joo2 MAY . 14 '9 8 (THU) 08 : 53 WALLACE GROUP 04/~0/98 18:54 '2!409 784 3~96 2547 7 2869 1 l>EVBLOPIENT SVCS PAGE. 3/3 ~OOJ We would lib for you to c:on&idcr an aitcmativoplan given~ above Ii pohrt3 . PIC4.lle call.if you ha: any qttestioas. We look f.orwanl to hearing from yoa. in the m:ar 5.iwre. :ico: Lllrey Ash, P .E., DirccSQr of Econom.la Developincnt • I'un Callaway, D~oraf'Ik"VelopmcatSe.rvias Made Smith, P Ji., nirecu:ir or Public Worb 8' Acti:ng City F.o~ Shirley VotJc. Dc:YcJopmcnt Coordinator 1061 MitdlcU, P .E., MC'CIUB EngU.ring ~~-~~ -~-1;., ""µ.,,, "" !.L-.,~ ~i! ,,~ ,(. k "'111'1~~ ,,.., a e.~ -~~ a .. ~ 1:.$,"6. ~ d~ve/•p_,1t,,-f A1tJr e~k-r ~ e;Nlln~~ .. ,, ,..;..,....,,_ a'~ ... ~ .. MAY . 1 4 ' 9 8 (THU) oa: 53 WA LLA CE GR OUP lf Wallace Group, Inc. 2 54.77 2 869 1 PA GE . 1 /3 1~9 The Engineer! • Atchtteeta • Pl<:lnne11 • Surveyo11 FAX COVER SHEET DATE: SUBJECT: TO: ATTENTION: FAX NUMBER: REMARKS: 0 { t "'/ ... : r., ~-····( !UC.-< ..,_.( FRDM: ..,c -12-9K ./. .. .::: ,I) "': / ,,-'--· <z: •' .... v I IJ OF PAGE$ INCLUDING _r_'l_~_.c.~1_1_._)~6_t..{ __ -_s=---q~7~r--6~~----'COVERSHEE~~--:;:_ .. ____________ _ L "2 ;I/ -a,··· . ... ;-..,,.··~:·· ... , :r: f / .. Cr.r // .. Vt-t ··~ ~. :/. , /,A_) --<.. lA,..I ,' I I P . 0. Box 22007 ·Waco . Texas 76702 8226 Centra l Park Dr ive , Su ite 100 · Waco , Texes 767 1 2 (264) 772 -9272 • (800) 336-1 683 -Fax !2541 776-2924 1-1-t t<) , . • r / •. ·1 0 HI / • McCLURE ENGINEERING, INC.--------- November 4 , 1997 Mr. Paul Kaspar City of College Station P.O. Box 9960 College Station, TX 77842-9960 RE: Requested F EMA Data The Business Center at College Station Dear Paul: Thank you for forwarding to me this most recent package of data from FEMA. As you will recall, in September we received the initial package of data, but noted that it was information on the Alum Creek Tributary instead of the AC-1 tributary. The new data that we have received is for the Main channel of Carters Creek. If the data can not be found, could this tributary be removed from the FEMA maps and be regulated by the College Station Storm Water Management Ordinance? Per our conversation I spoke with Tony Tomcheson of the Wallace Group in Waco with respect to the work we have done. I will furnish him the applicable information. During our conversation, he mentioned that if a map revision will not benefit his client, his instructions are to not pursue the revision. This was not my understanding of the agreement and might be worth your investigation. Very truly yours, xc: Steve Homeyer Veronica Morgan, P.E. JJM/mlm F:\9708\9708-L T 5.WP D 17 22 Broadmoor , Suite 2 10 • Bryan , Te xas 77 80 ' I Cr-e~ j):p f;\c_ . c_s. bh-crifr . r'--1 .crlt: \X-"1 ry.e-~1'. \J~G7lo ~