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SWP272742 (2)
l BAIMA & HOLMBERG INC. DRAINAGE ANALYSIS - v�- FOR CRYSTAL HEIGHTS TOWN HOMES DUNE 13,1997 Baima& Holmberg Job No. 1414-001 Prepared for: New Concept Development Co. 14670 NE 8`h St. Suite 115 Bellevue, WA 98007 +IsaED JAN 0 7 1997 BUILDING CyVISION ' 100 FRONT STREET SOUTH ISSAQUAH • WASHINGTON • 98027-3817 • (206)392-0250 • FAX(206)391-3055 JOB BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE T!? . ........ P�l] �P /✓� _ ...f G,-e_ Yot d,'� f'. /�/�}y /I c .....�GtC1,. .6.' 1 70Y' ln. GL � � l� Ef� .7SG...._J . frdvfLt Gc � . TA ..... U.. � _P.r e.. f G�,sGl�c�.._ j ,5.. %Y1 �!0...... G..... .�2 �j . _ P,' ...... .... ,T�e P�.PL> <<� .e ys. �.... Al '=� S�e'��'` .......... TA-er-c:__ PRODUCT 204-1(Single Sheets)205-1(Padded) �- 211�030-f - ~{ N co 301Sti3Alb: 40 r*T F .{<� :b m r A y .�A LOGAN AV N (DO S � Q, BUR cz PARK q� N ` \�� :x �` ; �a �i CD Lo N Lo _ 11> =GARDENl ,••ban ; AV a �N�1� N I L„ -"'i N 1 r P 2800 = N N'4 n ►— N �� N9 5(1 N� �� ---5_N I FRW Iv M _DOW 4 AV N o JONES HIGH qV E ml i m 1'o 200o AV NE I s..i., 6 + _ KCNN CD AV NE CD m o s t UNTLN PL 1 — x _ c^ LINCOLN S lul m Ln MONTE EY 4k, z I ! PAL NE �" 1400 No m 1 1 NTEREY 1 m x NTEREY; NE � N V NE ABERDEEN AV m N AQERDEEN Cr Nr CA rrl N - D �' c 1200 AV -i ~ ,�/ N N x o m NF 70 ~ M 2000 � z °' m O m Z Zrn Yfvlu 0D "' m S N;. BLAINE AV NE ABEROE ry ( _ �f Z 'J m - w BL INE a'• a o D N m o o UHAS CAMAS N AMAS AV NE LPL NE N rm o M1 r _ AV N AY NE S AYTON AY o cAH{$ AV Oz AV N = I r cn Z7 DAYTON .AV NE NE o DAYTON r.> AV NE I Ln p FfR b 9900 EDMONDS �m m m AV om m r, .1 H f FE lE �m 11001V v: 3 0 NE qC y-m r- --GIENFMpOD-g -(/rl"i r O �o- t _ '� 2000 L?-un,, 5 6 N m a� - N:. — ry oo C FERNDALE rn . E HARKING RINGTON[-Jb 6f° . AV C r AV IyE IIARRINGTON o i 1 �f .t::,o m I Ln IA EX h NE �j'ICj x L INDEX a^.Q C!N x pt1 �� qsm y ' A�yNsft A ao �A ti r '��/ G`'• 1 r , .'`m.j JEFFERSON q IL4RRINGTON C l/F AV p� fY S a. �`; x7��,.�.. � iNfuceEs � PL NE � �.�� L,, Nf O yf b0 \ z m N JEFFERSON AV HE c KIRKLA 0 �� KIRKLANDoo ''.:AV �r s AV NE yF f W N m m 1 ice` �f° °° L YNNWOOD AV s� 0 1000 NE '10NROE AV C z 800 NE on -- m m N RT-CT m- 7N- - -o ^z` m_ c!_:o MONROE __NE V CO HE 13 11fOd�' O o ,-, .• O Z. 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Ln aaq '• ...... ........ r i .�fUN : rj 3 1 1 S •.•,..,.., ; . ......... 1 Ln i (Q :rJ v) ••• ..h•.�•:•.-. Ul rj L7 •h•.+ rj m 1 g rl /•. Ak Ln .r•'• tV 05 y\M /III/ • ,''•a• 0.r'r• ..r•r ti. SCREENED &UREC RECYCLE SINS CONC. PATIOS -'C.12STING RESIDENCE N89'51'O0-E ,319.42' '1 _ T. BLDG' �a `\ 8C i (EXISTING « 1 rr\ ` \ \\ 7C 8C QC f RESIDENCE. / \` \ \, \ � •i � / TO REMAIN � t BLDG rr BLD5 REMODEL TO UNIT If `\2,D 11 C�! 12 C 17 } REMOVE t GRAVEL \` \ \ \\, '\ \� ~_�\t - _ - ' k .i.:.• DRIVE 71. REMOVE EXISTIN ! \ (1) CAR GARAG.: \ 3 CONC. DRIVES ADD.NEWT 12' X 20 GARAGE \ o L WALXS.STAIRS 1 & LANDINGS. TIP.- .D..-•�-,�L ;` f . f 1 ` t i L ,u '. REMOVE EXISTING TREES �',. � ` � �' •\ � 1 BLDG2 1 ! 4 TAIL STAT10� `• It \ 1 ( MAIL STATION ADD NEW 12' Xy20' CARAGEI% 4 .z 1 i 1 ,:. t• f FIRST FLOOR 5D DECKS 1 31C 1 4C 1 5C RESIDENCE GC TO REMAIN L REMODEL TO18 ; 0' BLDG `.\ \ S89.51.00 E? i EXISTING TREES TO REMAIN 235.25'1 / •�� i I i REMOVE EXISTING SCREENED DUMPSTERS`'•� CARPORT/DECK 1 &RECYCLE SINS EXISTING RESIDENCE W \m y -t, Q r\ `� t JOB BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE _ ........ . �a .... T: ivy or y ? .'. , 1 0-2 ti 17-7 PRODUCT 204 1(Single Sheets)205-1(Padded) JOB BAIMA & HOLMBERG, INC. SHEET NO. ? ;� OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE _ r .. 11 r ..... j? �i .. ? . r f n > . �.._`✓ , o .... A ni I L ...... '. J. r PRODUCT 204-1(Single Sheets)205-1(Padded) JOB /`//lSr2- BAIMA & HOLMBERG, INC. SHEET NO. ? ` A OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE y A J •. '� : � r �• Cam' � � ...... __ ............ i.... -' ...... ................ >>� ... e--- _. . .... I� ...... S ..... ......... .... : _.�.. �� _..... _ ... . . .... �r > PRODUCT 204-1(Single Sheets)205-1(Padded) JOB BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE vy PRODUCT 204 1(Single Sheets)205.1(Padded) 5XTSTlIVO C©itlDTTTc)A✓Y ---------------------------------------------------------------------- ******************** S .C. S . TYPE-lA DISTRIBUTION ******************** ********* 2-YEAR 24-HOUR STORM **** 2 . 00" TOTAL PRECIP. ********* ---------------------------------------------------------------------- ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 . 9 83 . 0 . 1 98 . 0 9 . 1 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN 1 . 0 . 9 83 . 0 . 1 98 . 0 9 . 1 PEAK-Q (CFS) T-PEAK(HRS) VOL (CU-FT) . 15 7 . 83 2616 �Z ---------------------------------------------------------------------- ******************** S .C. S . TYPE-lA DISTRIBUTION ******************** ********* 10-YEAR 24-HOUR STORM **** 2 . 95" TOTAL PRECIP. ********* ---------------------------------------------------------------------- ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 . 9 83 . 0 . 1 98 . 0 9 . 1 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN 1 . 0 . 9 83 . 0 . 1 98 . 0 9 . 1 PEAK-Q (CFS) T-PEAK (HRS) VOL (CU-FT) . 33 7 . 83 5136 ---------------------------------------------------------------------- ******************** S .C.S . TYPE-lA DISTRIBUTION ******************** ********* 100-YEAR 24-HOUR STORM **** 3 . 95" TOTAL PRECIP. ********* ---------------------------------------------------------------------- ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 . 9 83 . 0 . 1 98 . 0 9 . 1 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN 1 . 0 . 9 83 . 0 . 1 98 . 0 9 . 1 PEAK-Q (CFS) T-PEAK (HRS) VOL (CU-FT) . 55 7 . 83 8079 r SCREENED &UMPSTERS REC RECYCLE BINS CONC. PATIOS 'STING RESIDENCE �J O I Mr; S Lh N!S'S1'00 E 319.42' ` \1D � i BLDG a 7C 8C gC'• �RESIDNc \ \ \7 \\ \ \ 1 OC ';l TORREMAIN 1 \ t B LD G BL•D REMODEL TO ; ;T � �S � UNIT � 1\ f\ � ' 11 C 2C : 17 REMOVE `\ \\2D, � \ ,•� ••4 � ' GRAVEL \ '••\ \� '\� DRIVE ` I I REMOVE EXISTING •� J SBL ` •., • \ ASPHALT DRIVE (1) CAR GARAGE 3 L :\ \,' ``\ ! 1 CONC. DRIVES I j I :ADD NEW'.12' X 20• GARAGE \ �� . \ •\ '. t WALti6. STAIRS I I ..1 i I t \ .- Cl' 1 - Z L.f. IV NDINGS. T1P. S 1 1 i _ t •• \ °j J \ 1 REMOVE\EXISTING TREES }4D ' 1 t 4 ' tI ` .� ` ( MAILSTATION i BLDG 2 ! ` } > 1 \ 1 1 i iI. MAIL STATION } j ADD NEW 12' X 20' CARAGEA FIRST FLOOR 5D DECKS 1 3C 14C RESIDENCE 5C 16C TO REMAIN / ^ I REMODEL TO L i it ' UNIT, 4 6fl , \ �\ \ i LDG '#4 20' 18 _ BLD 7#6 i n j S89'51'00'E: 235.25` t l \ \ EXISTING TREES TO REMAIN 1 ' } SCREENED DUu.PSTERS` -� REMOVE EXISTING 1 / &RECYCLE BINS CARPORT/DECK EXISTING RESIDENCE----- / 0 Q JOB BAIMA & HOLMBERG, INC. SHEET NO. / '— �` OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE ... ) . l 1 i ........... ' .. ...... , 1i T y , .. __.�.. J ' 1 1 ^ j, { ...... - ..... to �7� �:7G? .... . ....................... ... .... �,,. r .. C _. , , _. � . r I r) " i ..... ... ._... ._P. ,.. _...., __ .... ...... ..... ........... _. PRODUCT 204-1(Sin01e Sheets)205 1(Padded) JOB BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE c. S , . Pfl000CT 204 1(Single Sheets)205-1(Padded) i CoNz-D-T /vs ---------------------------------------------------------------------- ******************** S .C.S . TYPE-lA DISTRIBUTION ******************** ********* 2-YEAR 24-HOUR STORM **** 2 . 00" TOTAL PRECIP . ********* ---------------------------------------------------------------------- ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 .4 86 . 0 . 6 98 . 0 5 . 0 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN 1 . 0 .4 86 . 0 . 6 98 . 0 5 . 0 PEAK-Q (CFS) T-PEAK(HRS) VOL (CU-FT) . 36z 7 . 67 4873 ---------------------------------------------------------------------- ******************** S .C.S . TYPE-lA DISTRIBUTION ******************** ********* 10-YEAR 24-HOUR STORM **** 2 . 95" TOTAL PRECIP. ********* ---------------------------------------------------------------------- ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 .4 86 . 0 . 6 98 . 0 5 . 0 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN 1 . 0 . 4 86 . 0 . 6 98 . 0 5 . 0 PEAK-Q (CFS) T-PEAK(HRS) VOL (CU-FT) . 60 7 . 67 7917 ---------------------------------------------------------------------- ******************** S .C. S . TYPE-lA DISTRIBUTION ******************** ********* 100-YEAR 24-HOUR STORM **** 3 . 95" TOTAL PRECIP. ********* ---------------------------------------------------------------------- ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 .4 86 . 0 . 6 98 . 0 5 . 0 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN 1 . 0 .4 86 . 0 . 6 98 . 0 5 . 0 PEAK-Q (CFS) T-PEAK (HRS) VOL (CU-FT) . 86 7 . 67 11227 leo JOB BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE pF, T1= 7--7r p. — r � /�I .�f /...t7 �j..........w . .... � t�f �_l�ri�lfOCJ7�.� .......... ...7__ 1`'/,�/v�. .� % •7-P . .. 2.. 15_•� ..... . ....• ov G73_2 PRODUCT 204-1(Single Sheets)205.1(Padded) RISER OVERFLOW DEPTH FOR PRIMARY PEAK INFLOW = . 20 FT SPECIFY ITERATION DISPLAY: Y - YES, N - NO SPECIFY: R - REVIEW/REVISE INPUT, C - CONTINUE PERFORMANCE: INFLOW TARGET-OUTFLOW ACTUAL-OUTFLOW PK-STAGE STORAGE DESIGN HYD: . 86 . 55 � /!ow 55 6 . 99 1411 TEST HYD 1 : . 60 . 33 4io /jJ���,, . 32 4 . 56 970 TEST HYD 2 : . 36 .15 All . 13 3 . 02 580 SPECIFY: D - DOCUMENT, R - REVISE, A - ADJUST ORIF, E - ENLARGE, S - STOP ENLARGEMENT OPTION: ALLOWS FOR INCREASING STORAGE AT A SPECIFIED STAGE HEIGHT, TO PROVIDE A FACTOR OF SAFETY. ENTER: STORAGE-INCREASE (o) , STAGE-HEIGHT (ft) PERFORMANCE : INFLOW TARGET-OUTFLOW ACTUAL-OUTFLOW PK-STAGE STORAGE DESIGN HYD: . 86 . 55 .40 5 . 97 1662 TEST HYD 1 : . 60 . 33 . 28 4 . 08 1110 TEST HYD 2 : . 36 . 15 . 12 2 . 64 630 SPECIFY: D - DOCUMENT, R - REVISE, A - ADJUST ORIF, E - ENLARGE, S - STOP PERFORMANCE: INFLOW TARGET-OUTFLOW ACTUAL-OUTFLOW PK-STAGE STORAGE DESIGN HYD: . 86 . 55 .40 5 . 97 1662 TEST HYD 1 : . 60 . 33 . 28 4 . 08 1110 TEST HYD 2 : . 36 . 15 . 12 2 . 64 630 STRUCTURE DATA: R/D TANK (FLAT GRADE) RISER-HEAD TANK-DIAM STOR-DEPTH TANK-LENGTH STORAGE-VOLUME 7 . 00 FT 7 . 00 FT 7 . 00 FT 47 . 7 FT 1836 CU-FT TRIPLE ORIFICE RESTRICTOR: DIA(INCHES) HT (FEET) Q-MAX (CFS) BOTTOM ORIFICE : L. 62 . 00 . 200 MIDDLE ORIFICE : 2 . 15 3 . 00 . 250 TOP ORIFICE : 2 . 28 6 . 50 . 100 ROUTING DATA: STAGE (FT) DISCHARGE (CFS) STORAGE (CU-FT) PERM-AREA(SQ-FT) . 00 . 00 . 0 . 0 . 70 . 06 95 . 6 . 0 1 .40 . 09 261 . 5 . 0 2 . 10 . 11 463 . 5 . 0 2 . 80 . 13 686 . 1 . 0 3 . 00 . 13 751 . 9 . 0 3 . 50 . 23 918 . 4 . 0 4 . 20 . 29 1150 . 7 . 0 4 . 90 . 34 1373 . 4 . 0 5 . 60 . 38 1575 .3 . 0 6 . 30 . 42 1741 .3 . 0 6 . 50 . 43 1778 . 6 . 0 7 . 00 . 55 1836 . 9 . 0 JOB BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE . _ .... . 1 . ��''. � fo� w: t�........ y a r .......... ..... .. ...... ._. ........... ..... ... 4-.r►lo .. 67 3; I• 3 1 PRODUCT 204-1(Single Sheets)205-1(Padded) Trapezoidal Channel Analysis & Design Open Channel - Uniform flow Worksheet Name : 1414-001 Comment : BIOSWALE DESIGN Solve For Bottom Width Given Input Data : Left Side Slope . . 3 . 00 : 1 (H:V) Right Side Slope . 3 . 00 : 1 (H:V) Manning' s n. . . . . . 0 . 350 Channel Slope . . . . 0 . 0200 ft/ft Depth. . . . . . . . . . . . 0 . 33 ft Discharge . . . . . . . . 0 . 13 cfs Computed Results : Bottom Width. . . . 0 . 88 ft RMA j j,j,�c, l�;o%G, jrv,- �2" Velocity. . . . . . . . . 0 . 21 fps O� Flow Area . . . . . . . . 0 . 62 sf Flow Top Width. . . 2 . 86 ft Wetted Perimeter. 2 . 97 ft Critical Depth. . . 0 . 08 ft Critical Slope . . . 4 . 54 ft/ft Froude Number. . . . 0 . 08 (flow is Subcritical) Open Channel Flow Module, Version 2 . 01 (c) 1990 Haestad Methods, Inc . * 37 Brookside Rd * Waterbury, Ct 06708 JOB BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE SQ f. vs 'are /o�� ✓�� G, . ;-=.. .4:_, PRODUCT 204-1(Sgle Sheets)205-1(Padded) Trapezoidal Channel Analysis & Design Open Channel - Uniform flow Worksheet Name: 1414-001 Comment : BIOSWALE DESIGN Solve For Depth Given Input Data: Bottom Width. . . . . 3 . 50 ft Left Side Slope . . 3 . 00 : 1 (H:V) Right Side Slope . 3 . 00 : 1 (H:V) Manning' s n. . . . . . 0 . 027 Channel Slope . . . . 0 . 0010 ft/ft Discharge . . . . . . . . 0 . 55 cfs Computed Results : Depth. . . . . . . . . . . . 0 . 23 ft tF1OO eiol-4 Velocity. . . . . . . . . 0 . 58 fps Flow Area. . . . . . . . 0 . 95 sf Flow Top Width. . . 4 . 86 ft Wetted Perimeter. 4 . 94 ft Critical Depth. . . 0 . 09 ft Critical Slope . . . 0 . 02 ft/ft Froude Number. . . . 0 . 23 (flow is Subcritical) Open Channel Flow Module, Version 2 . 01 (c) 1990 Haestad Methods, Inc . * 37 Brookside Rd * Waterbury, Ct 06708 it CITY OF RENTON PLANNING/BUILDING/PUBLIC WORKS DEPARTMENT MEMORANDUM DATE: TO: DAVE CHRISTENSEN OIMSBY C/�, ON STI �`_ .�, RAY SLED, JOHN THOMPSON Ot, 1 &8 FROM: �]�J L L C�'r�1 �� SUBJECT: C R )/ST �- / �/�7ff�' S Tc� •�✓n�o�t� S uN The attached plans are nearly ready for final approval, and I will be requesting the final mylars on ? If you have any comments on these plans,'please return them to me by&W. —74$ If no response is received by this date, I will assume there is no substantial objection and proceed with plan approval. COMMENTS: For future reference only - no changes required: Minor revisions) prior to construction - no plan changes required: - o be revised prior to approval: �aji� -- �s}�. P PP CITY OF RENTON PLANNING/BUILDING/PUBLIC WORKS DEPARTMENT MEMORANDUM DATE: TO: DAVE CHRISTENSEN LYS HORNSBY RONSTRAKA .�, RAY SLED, JOHN THOMPSON SUBJECT: C ION 'O 5 71 The attached plans are nearly ready for final approval, and I will be requesting the final mylars on ? If you have any comments on these plans,'please return them to me by&W-Ye If no response is received by this date, I will assume there is no substantial objection and proceed with plan approval. COMMENTS: For future reference only - no changes required: Minor revisions) prior to construction - no plan changes required: - Major plan error(s) to be revised prior to approval: s ?l.Pml S�,c�c C-'� .:a rL 9—C616w C 0 N NE tsSS . M� C'trvexl K2�I�S�oh1 s CSN o Clwwu oc'C • S \,qz C 436-q-m) BAIMA A HOLMBERG INC. Letter of Transmittal To: 14�41" Date: Job No: ft//�/' —od / e,-x We are sending you attached under separate cover via No. Copies Description THESE ARE TRANSMITTED as checked below: C for approval C approved as noted approved as submitted as requested REMARKS: CITY OF Ri=ba N Rcl:^c F Frr) Copy to: /c- signed: 100 FRONT STREET SOUTH • ISSAQUAH • WASHINGTON • 98027-3817 • 425/392-0250 hr r + CITY OF RENTON PLANNING/BUILDING/PUBLIC WORKS DEPARTMENT MEMORANDUM DATE: 5— TO: DAVE CHRISTENSEN LYS HORNSBY RONSTRAKA 1R�, RAY SLED, JOHN THOMPSON FROM: SUBJECT: C 1ON '0 S T L' �� E'�f'� S 7-0 The attached plans are nearly ready for final approval, and I will be requesting the final mylars on ? If you have any comments on these plans,.'please return them to me by 0W-Y& If no response is received by this date, I will assume there is no substantial objection and proceed with plan approval. COMMENTS: For future reference only - no changes required: Minor revisionjs) prior to construction - no plan changes required: - Major plan error(s) to be revised prior to approval: CITY OF RENTON PLANNING/BUILDING/PUBLIC WORKS DEPARTMENT MEMORANDUM DATE: TO: DAVE CHRISTENSEN LYS HORNSBY RONSTRAKA X , RAY SLED, JOHN THOMPSON SUBJECT: C1? yST11 C.— /IC_1617e TU /✓�4�'L1 ,S The attached plans are nearly ready for final approval, and I will be requesting the final mylars on ? If you have any comments on these plans,,ease return them to me by A2917-Y$ If no response is received by this date, I will assume there is no substantial objection and proceed with plan approval. COMMENTS: For future reference only - no changes required: Minor revisions) prior to construction - no plan changes required: - Major plan error(s) to be revised prior to approval: CITY OF RENTON PLANNING/BUILDING/PUBLIC WORKS DEPARTMENT MEMORANDUM DATE: TO: DAVE CHRISTENSEN crry or RON STRAKA RAY SLED, JOHN THOMPSON '�. `FROM: j L, L vM ���`� Bull SUBJECT: CIO, ST C _ � ��7�f A S TU w/Vi�0440-S NG D1 V'6'uN The attached plans are nearly ready for final approval, and I will be requesting the final mylars on ? If you have any comments on these plans,,ease return them to me by 4R77-7,& If no response is received by this date, I will assume there is no substantial objection and proceed with plan approval. COMMENTS: For future reference only - no changes required: Minor revisions) prior to construction - no plan changes required: - Majglr to be revised prior to approval:L���64� - /,3 �� o �i Y i� CITY OF RENTON PLANNING/BUILDING/PUBLIC WORKS DEPARTMENT MEMORANDUM DATE: — / 6 TO: DAVE CHRISTENSEN LYS HORNSBY RON STRAKA n , RAY SLED, JOHN THOMPSON FROM: SUBJECT: C r: 5-711 U �� f C)ff l S TU w/✓i�0�'L1�S The attached plans are nearly ready for final approval, and I will be.requesting the final mylars on ? If you have any comments on these plans," please return them to me by OR77-9$ If no response is received by this date, I will assume there is no substantial objection and proceed with plan approval. COMMENTS: For future reference only - no changes required: 62 t7 G' .5zL d h' f-c' 72>.5n Minor revision(s) prior to construction - no plan changes required: 63 NJ ' Re,4.,ITI�h /�✓'�" 4'L*�CL/� Major plan error(s) to be revised prior to approval: I GROUP FOUR, Inc .. Y' LA/J page � 1 CRYSTAL AL HEIGHTS GROUP FOUR R .i O9 NO. 92-430S GH Z � r ti 1 00YP F'Erlk: RATE OF ';,,UNCFF ANALYSIS _Ca r� ' �- BASIN SUMMARY BASIN ID; NAME:AME: ;,001 P: STGRM AE'�E LOPED SITE 1-.I'1'J • i SBUH METHODOLOGY �8 A_ ;s �acEr LO�:S: - _ 0. 'r t: r�0 • fs TYPE rJSER 1 ,'ERV I GUS AREA RAINFALL . . . . . 0. 4S Acres PRECIPITATION— . :. . 2. 50 inches ARE=a. TIME I NTERYAL. . . . . 10. 00 min CN. . . . : Sb. 00 TIME OF CONC. . . . . . 8. 86 min i MPERV I OUS ;AREA i rI'T I ON r;'O t�r. ''r} AREA . . : 0. 50 Acres � l=ri4S T RA . FF: ._ r_N. . . . . 9p_. 00 Sheet �-.", 5. 00 ns. t . 1500 p?y'r . 2. 00 S10. 1500 . �� r 20. 00 ns: 0. 01 1`a p2yr . 2. 00 s; 0— 1000 TcF .h - Sheet L: 15t:f, tlt;� n,, 0, 0110 p ,r- : L. (,o s: c_r. c>'._.• 5 PEAK i ; RATE: 40; 77'• c f VOL: 0. 25 Ac-T t TIME: 480 min i k: i BASIN Iil: EXIST NAME: iCli:l`tjR STl1''N, EXISTING SITE SDUH METHODOLOGY SASEs=LOWS; 0. 00 cfs TOTAL" AREA. . . . . . . . O. 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