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Item 4F - PlansJOHN HUFFMAN MA YOR KATHY TALLEY RAND Y ROBBINS CHA D PA T TON RONELL SMI TH A M Y TORRES- L EPP RANDY WILLIAMSON COUNCIL MEMBERS CDNCEP / PLAN FOR DEN TON COUN TY SOUTHLAKE, TEXAS APRIL 2022 E BOB JONES ROAD W BOB JONES ROAD z KING RANCH ROAD PROJECT SITE 2 m D m r r VICINITY MAP (NTS) M-2, DEOTTE ING, EM CIVIL ENGINEERING FIRM REGISTRATION # (TEXAS): F-003116 IM Lo-.0 tw), !I 420 Johnson Road, Suite 303 Keller, Texas 76248 Phone (817) 337-8899 THIS DOCUMENT IS FOR INTERIM REVIEW AND IS NOT INTENDED FOR CONSTRUCTION, BIDDING OR PERMIT PURPOSES. BY: Andrew Wilson Reg. No.: 126044 Firm No.: F-3116(TX) Date: 4/12/2022 PREPARED FOR: HAWKINS-WELWOOD 17480 N. DALLAS PKWY, STE 217 DALLAS, TEXAS 75287 CONTACT: JAMES COX PHONE: (972) 931-1006 SHEET INDEX SHT NO. DESCRIPTION rPKIppAI C-0.1 COVER SHEET C-0.2 CONCEPT PLAN C-0.3 DRAINAGE AREA MAP C-0.4 UTILITY PLAN C-0.5 TREE CONSERVATION ANALYSIS REVISIONS No. 0 DESCRIPTION DATE APPR./DATE ,o 2 0 3 0 4 0 5 0 U) Q X w I- w Q J O U) w z_ Q O H z Q J n n W U z O U I O 0 0 0 0 N o Q N N • 0 T 1, OWNER: SADDLEBACK RIDGE ESTATES SF1—A LUD=LOW DENSITY RESIDENTIAL -,,, --B,i�- J_(� �l V,-;-R C;'rD l E C' C 2 U C (�ttE�� (! 3: L QO �o �Z .l OWNER: REEDER ADDITION RE5 LUD=LOW DENSITY RESIDENTIAL w w w w wW--. w w w L' ,%AIN* N89°10'4r 320.78' •I � r --20—SETBACK -----� � I I 01 ml Iw LOT 1 0• n cu 43,569 SE �lo N ID I OWNER: LEGACY LIMITED, LLC n AG I II LUD=LOW DENSITY RESIDENTIAL 20' SETBACK — — — — J 0 � C _ N89°06'02"E 322.33' • �L' —� r� 00 Ln Lo r 20' SETBACK cj 0 9 i / o ROW,I 5' SIDEWALK I� o 208.71' �JIML O T 2/ r��• S88°25' 32"W �* m 43,650 SE CD o •. 20BAC ' SETK o � 00 ro • 60m � 20' SETBACK • � I N88°36'44"E — — � 278.85' Q I ---- 43,694 SE �� 20' SETBACK 10 LOT 3 43,656 SF sF� Im � j&:�4 Dn,0 L----- — 20' SETBACK ---------,-- 20' SETBACK --� 383.61' N89'33'02"E - S89°32'23"W V. Owner: Matthew & Leigh Mahome SF1—A LUD=Low Density Residential T EX. 5' ESMT AF f TOTAL AREA 4.7467 ACRES N 0 0 m 200.55' N cn cn cn fN N N I c N ' In in OWNER: CITY OF SOUTHLAKE AG i PI IRI I( PARIKC /(1PFNI CPA( P LOCATION MAP SCALE: 1" = 2000' 0 20 40 80 ( IN FEET ) 1 INCH = 40 FT SITE DATA SUMMARY EXISTING ZONING: AG PROPOSED ZONING: SF1-A LUD = LOW DENSITY RES GROSS AREA: 4.75 AC NET AREA: 4.47 AC PROPOSED LOTS: 4 RESIDENTIAL DENSITY: 1 AC PREPARED FOR: HAWKINS-WELWOOD 17480 N. DALLAS PKWY, STE 217 DALLAS, TEXAS 75287 CONTACT: JAMES COX PHONE: (972) 931-1006 ZA22- 0011 U� M O O w I---� z w� � N � w W W Oz� ti M �-4- 3 o w Ca a Q W O [-- U LL LLJ LLJ Q U zz= 0 Q U 0 BENCHMARKS: BM1 ELEV = BM2 ELEV = DENTON COUNTY Xw TRACT 15 F ABSTRACT NO. 992 LLI GROSS ACREAGE: 4.75 AC Y g O 0 z z z O z O z w 0 wU w �� z �Ovi J LL' (-)w w Z o' 0.H �XN a_ �O w oom 3��N U 0E-- � z cnW��o,�� O w—m ��- L)zz0 O C oo o�z zz O Lf) o i °� U 1z252 Lv �_Qmmrylo w z DOI No. 202111000 0 0 0 N O N O C- 0. 2 z 0 0 Rational Method Runoff Calculations (EXISTING) Area No. Area (AC) Description 'C' Value Tc (Min) 11(IN/HR) Q1(CFS) 110 (IN/HR) Q10 (CFS) 1 100 (IN/HR) Cf (100) Q 100(CFS) West 31.28 Open Space 0.42 20 2.56 34 4.23 56 6.34 1 83 OS-3 4.90 Open Space 0.35 15 3.23 6 5.34 9 8.02 1 14 bvf I r Rational Method Runoff Calculations (PROPOSED) v V y � 1 I h Area No. Area (AC) Description 'C' Value Tc (Min) 11(IN/HR) Q1(CFS) 110 (IN/HR) Q10 (CFS) 1 100 (IN/HR) Cf (100) Q 100(CFS) A-1 1.32 Res. (1 AC+) 0.40 15 3.23 2 5.34 3 8.02 1 4 A-2 1.77 Res. (1 AC+) 0.40 15 3.23 2 5.34 4 8.02 1 6 A-3 3.64 Res. (1 AC+) 0.35 15 3.23 4 5.34 7 8.02 1 10 A-4 0.96 Res. (1 AC+) 0.45 15 3.23 1 5.34 2 8.02 1 3 A-5 0.50 Res. (1 AC+) 0.95 15 3.23 2 5.34 3 8.02 1 4 B-1 1.00 Res. (1 AC+) 0.45 15 3.23 1 5.34 2 8.02 1 4 B-2 1.05 Res. (1 AC+) 0.35 15 3.23 1 5.34 2 8.02 1 3 OS-1 0.49 Res. (1 AC+) 0.45 15 3.23 1 5.34 1 8.02 1 2 OS-2 20.55 Res. (1 AC+) 0.45 20 2.56 24 4.23 39 6.34 1 59 OS-3 4.78 Res. (1 AC+) 1 0.35 1 15 1 3.23 1 5 1 5.34 1 9 1 8.02 1 1 1 13 1 � ( v IL Z U'CF1r e. / 1 l I % % Ln o \ j I I ( d o -�-ago -� - -- - - - -- - -- - -- - - OMNI._ - .4 ACC r ' f� C� J � `� - r rT\ 1 r O I ICI 1 I l 16 17 1 32 AC Lo ( 1 G \N I II �� ��//��/IIII1 I / Y �� �! co Ill ( � V v � , 1 \ I r \ �,l ���_� f / / / A-2 A - I A \ \ C ( �% -) // �1 C CULDE8AC 1 S ( 1 RADIUS ti 60 � _I� _ -�- -�- - _ o -fir-- - - -- - - A 5 > I I 1 I � \ �� 1 �� \ v v � � � 1 � \ � � �• � � A )II _ v \ \ I v \ I I / I - l _ �. L L _ T A3 -' / 1 3.64/AC 1� �%16A \ \���n ti� -- �� LfLn t \ I I la �� Imm III\ AII�� \6vy � � A v ( I ( ( s o I l r I v A �A 1 ! \ \�5 \lb\ VA \\ V A \ A I 111 ( \� V i % \ \ \ \ IIII 1 \ 1 ) r L N� LA ■ 1 \ l J _ ■ I l r �i �� �1 S \ vvA \ \ VA� v11 \ I 1 1 I V \\ /r v v�v v \\� \ v A 1�.\\ \ \ 1 �� \ \ \ \\ \\ \ I A I I A 1 I \ V ) I \ c N 0.55 AC AA\Ili Air �►� �/\ �'� ___ v� \v _ �_�� I I, � i I I I i 1� I 1 i� A I � � � � �� � A�v\\..I, 1 1 l l 11 � r �,� � 1 I�� �� �/� ,`-___ _•' � \ 1 /\l J \ C �- ,�5 \\\ �IIIIII I (,-'-JI o ,�.� (� C �I Ji J � I II ICI• vv' I I � r \1���I�1 lIIIII I I Irv l l l II I ` I \ v I \ I I ! 1' S I IIIIIIIIII J IIII IIII I I-7 /l� ( I s J r ti \ - �-H r I fJ III \ ) I I 1 \� ■ __� _ tirll�l,llIlil� / \ � -lime <� I lI > 0 15 30 60 ( IN FEET ) 1 INCH = 30 FT ►grh[�7 i1AP►h LOCATION MAP SCALE: 1" = 2000' LEGEND KNAME DRAINAGE AREA LABEL AC Q 10 FLOW ARROW (POST -PROJECT) DRAINAGE DIVIDE - -501- EXISTING CONTOUR MINOR 500 EXISTING CONTOUR MAJOR FLOW PATH FOR TC CALCS DRAINAGE CALCULATIONS TOTAL AREA: 9.2 AC C VALUE = 0.45 (>1 ACRE SF-1A) TC = 15 MIN INTENSITY = 7.98 IN/HR Q=42CFS ZA22-0011 U� M O O W ~� w 00 N W M -2 �4 a M ti M �o r Nt w Q z a I..L U ^ Q Q X Q W W 0 0Q U LU � Q Z 3:Q Z -� Q Q O 0 BENCHMARKS: BM1 ELEV = BM2 ELEV = U) DENTON COUNTY X w TRACT 15 ABSTRACT NO. 992 LU GROSS ACREAGE: 4.75 AC Y a 2 O 0 } z 0 O z O z w 0 wU LU LLJ� z �Ovi J w U w Zoo o 2 n N a_ �D� �N W 0 oo� 3�coN 0 o� z cnw�-0(0 O zzwQNL"q- 0 w �0 0zo O (-) 00 ou)z zz O Loo . 6,E ° U �amm��o w z Q DOI No. 202111000 0 0 0 N 0 N O C-0.3 z 0 0 1 W W 20' Buildinc I U 4 M� �I U) h 0 O w O Z M 70 o Z z m OI L------ 4 I 3 �IU W � a � m It o I N _ I m 1 tcU" (n m I co J / M� 20' Building Setback / z ` R520, N88°36'44"E — — 278.85' * _ • ' LOT 4 20' Building Setback _ _ -- // -----�i _ INSTAL / 43,694 SF � I LOT 3 FRE HYDRANT Zo vE 43,656 SF 4i�ai s _ I - U)I > >`ot� Se=ck CO N � 0)�/dth � o Cq `� � NJ� C) z m v1 ` m 20' Building Setback — 20' Building Setback 383.61' _ „0 N89°33'02"E S89'32'23'. L W 584.11 I AL : 200.55' S' Utility Easement MH 20' Building Line �wY ■■■ MATCHLINE SSMH io ;7 U 00 C C p��0 �rI NEC' WA "I N MATCHLINE E EAR RapqoRA does not lie within statement as to tf �n Cn Ln Cn V1 c �rll 0 0, SS I CONNECT: EX SSMH L N LOCATION MAP SCALE: 1" = 2000' 0 20 40 80 ( IN FEET ) 1 INCH = 40 FT NOTES: 1. ALL SEWER LINE SHALL BE SDR-35 PVC. 2. ALL WATER PIPE SHALL BE SDR-18 C-900. 3. ALL CONSTRUCTION SHALL BE IN CONFORMANCE WITH THE GOVERNING BODY'S STANDARDS FOR PUBLIC WORKS CONSTRUCTION. 4. ALL SEWER SERVICES ARE PUBLIC UP TO THE LOT LINE. 5. ALL WATER SERVICES ARE PRIVATE FROM THE BUILDING TO THE METER AND PUBLIC FROM THE METER TO THE WATER MAIN. 6. ALL WATERLINE SHALL HAVE A MINIMUM 2' VERTICAL CLEARANCE FROM DRAINAGE STRUCTURES AND SEWER SERVICES. 7. ALL WATERLINE SHALL BE INSTALLED WITH A MINIMUM COVER OF 42" UNLESS OTHERWISE NOTED OR EXPLICITLY APPROVED BY THE CITY ENGINEER. 8. THE LOCATION OF UNDERGROUND FACILITIES INDICATED ON THE PLANS IS TAKEN FROM PUBLIC RECORDS. IT IS THE CONTRACTOR'S RESPONSIBILITY TO CONFIRM THEIR EXACT LOCATION AND TO DETERMINE WHETHER ANY ADDITIONAL FACILITIES OTHER THAN THOSE SHOWN ON THE PLANS MAY BE PRESENT, DETERMINE IF ANY CONFLICTS EXIST AND NOTIFY THE ENGINEER OF ANY SUCH CONFLICTS PRIOR TO BEGINNING CONSTRUCTION. THE CONTRACTOR SHALL PRESERVE AND PROTECT ALL UNDERGROUND FACILITIES. IF EXISTING UNDERGROUND UTILITIES ARE DAMAGED, THE CONTRACTOR WILL BE RESPONSIBLE FOR THE COST OF REPAIRING THE UTILITY. SANITARY SEWER OPTIONS 1. ON SITE SEPTIC (THIS IS THE PRIMARY OPTION) 2. PUBLIC 8" SEWER LINE TIE-IN TO EXISTING SOUTH MH ZA22-0011 U� M O O W w� C7 y ^ w Z w Q a a V Z W �Ow U � � ~ w Q Jz_= Q Z) rO v BENCHMARKS: BM1 ELEV = BM2 ELEV = U) DENTON COUNTY XLU TRACT 15 ABSTRACT NO. 992 LLI GROSS ACREAGE: 4.75 AC Y J 0 0 0 } z 0 0 O z O z w I— w U) z Q J a_ H a_ W U z O 0 O W z Q DOI No. 202111000 0 0 0 N O N O C-0.4 z 0 0 i17-7000 �4 O 1 ` ` I I � ` I I IF a-1 Alr CONSTRUC AREA FENCING TO MARK PROTECTION ZONE 0 10 20 40 ( IN FEET ) 1 INCH = 20 FT LOCATION MAP SCALE: 1" = 2000' CONSTRUCTION CONSTRUCTION AREA PROTECTED VEGETATION ZONE AREA Lu Lu z z LEGEND 9 GA. GALV. STEEL p p CHAIN LINK FENCING STANDARD STEEL OR ORANGE PLASTIC OR WOOD POST. SAFETY FENCE SPACE MAX 6' C-C. GREATER THAN 5% SLOPE MATERIAL EXISTING GRADE_, TREE TO REMAIN ROOT ROOT ZONE ZONE ROOT ZONE - N TREE TO BE REMOVED TREE PROTECTION DETAIL NOT TO SCALE TREE PROTECTION NOTES MARGINAL TREE ■ ■ ■ ■ ■ ■ TREE PROTECTION FENCE 1. GENERAL CONSTRUCTION NOTES: REFER TO SHEET C-X.X "GENERAL CONSTRUCTION NOTES, LEGEND AND ABBREVIATIONS" FOR THE GENERAL CONSTRUCTION NOTES FOR THE PROJECT. 2. TREE PROTECTION IDENTIFICATION: PRIOR TO GRADING, BRUSH REMOVAL, OR SITE CONSTRUCTION, THE CONTRACTOR SHALL MEET WITH THE DEVELOPER AND/OR ENGINEER AT THE SITE TO ASCERTAIN THE AREAS OF THE EXISTING TREES TO BE PROTECTED AND PRESERVED. THE CONTRACTOR SHALL THEN CLEARLY TAG OR MARK ALL TREES TO BE PROTECTED AND PRESERVED. NO TREES SHALL BE CUT AND/OR REMOVED FROM THE PROJECT SITE UNTIL SPECIFICALLY AUTHORIZED IN WRITING BY THE GOVERNING AUTHORITY AND/OR DEVELOPER. 3. TREE PROTECTION FENCE: THE CONTRACTOR SHALL ERECT A FENCE (PER DETAILS) AROUND EACH TREE TO PREVENT THE PLACEMENT OF DEBRIS OR FILL WITHIN THE DRIP LINE OF THE TREE. THE TREE PROTECTION FENCE LOCATION SHOWN ON THE PLAN IS SCHEMATIC IN NATURE. 4. TREE CANOPY RESTRICTIONS: DURING CONSTRUCTION, THE CONTRACTOR SHALL PROHIBIT CLEANING, PARKING OR STORAGE OF EQUIPMENT OR MATERIALS UNDER THE CANOPY OF ANY TREE OR GROUP OF TREES BEING PRESERVED. THE CONTRACTOR SHALL NOT ALLOW THE DISPOSAL OF ANY WASTE MATERIAL SUCH AS, BUT NOT LIMITED TO, PAINT, OIL SOLVENTS, ASPHALT, CONCRETE, MORTAR, ETC., IN THE CANOPY AREA. 5. TREE ATTACHMENT RESTRICTIONS: NO ATTACHMENTS OR WIRES OF ANY KIND, OTHER THAN THOSE OF A PROTECTIVE NATURE, SHALL BE ATTACHED TO ANY TREE. 6. FILL RESTRICTIONS: NO FILL OR EXCAVATION MAY OCCUR WITHIN THE DRIP LINE OF A TREE TO BE PRESERVED WITHOUT AN APPROVED PLAN FOR USE OF TREE WELLS OR RETAINING WELLS. CHANGES OF GRADE SIX (6) INCHES OR GREATER SHALL REQUIRE ADDITIONAL MEASURES TO MAINTAIN PROPER OXYGEN AND WATER EXCHANGE WITH THE ROOT SYSTEM. IN ADDITION, THE FOLLOWING GUIDELINES ARE TO PROTECT THE TREES TO BE PRESERVED. A. WITH MAJOR GRADE CHANGES, A RETAINING WALL OR TREE WELL OF A DESIGN APPROVED BY THE GOVERNING AUTHORITY SHALL BE CONSTRUCTED AROUND THE TREE NO CLOSER THAN HALF THE DISTANCE BETWEEN THE TRUNK AND THE DRIP LINE. THE RETAINING WALL SHOULD BE CONSTRUCTED SO AS TO MAINTAIN THE EXISTING GRADES AROUND THE TREE OR GROUP OF TREES. B. AT NO TIME SHALL A WALL, PAVEMENT OR POROUS PAVEMENT BE PLACED LESS THAN FIVE (5) FEET OR ONE (1) FOOT FOR EVERY TWO (2) INCHES IN CALIPER, WHICHEVER IS GREATER, TO THE TRUNK OF THE TREE. C. ROOT PRUNING WILL BE REQUIRED WHEN THE CRITICAL ROOT ZONE IS TO BE DISTURBED. THIS IS IN AREAS WHERE PAVING OR THE BUILDING PAD EXTENDS TO OR BENEATH THE DRIP LINE OF THE TREE. TOTAL AREA OF DEVELOPMENT = 4.7467 AC TOTAL TREE CANOPY AREA = 2.2378 AC 2.2378 / 4.7467 = 47% TREE COVER >>> 50% TREE COVER TO REMAIN LESS R.O.W. TREES = 1.7931 AC PRESERVATION REQUIREMENT = 50%(2.2378-1.7931) = 0.22 AC MARGINAL TREES THROUGH DEVELOPMENT = 0.9293 AC TREES TO BE PRESERVED THROUGH DEVELOPMENT = 0.63 AC (71.2%) TREES PRESERVED THROUGH DEVELOPMENT = 0.6321 AC >>> 0.2224 AC U� M O O W w� � M w o Z ^ ~� M r-I O w Q a � z a VJ U) Z Q X Z Lu 0 O U Lu Q � Lu J �LuZ2 V) Z O O U u) Lu Lu L.L BENCHMARKS: BM1 ELEV = BM2 ELEV = U) DENTON COUNTY XLu TRACT 15 ABSTRACT NO. 992 LuGROSS ACREAGE: 4.75 AC Y J H O O } H z O 0 O z O z W 0 H W U Lu > > U) �� z �Ovi J LdOw Zoo S H —Om n 0oz� �N Lu 0 L�Ld 3�coN U o� ���� z (nz— iOMN w��(0 O ZZWQNL"t 0 w—m �o� uzo o O oo CDcf)z zz O 1 z Q) - U W z_ Q DOI No. 202111000 0 O O N O N ZA22-0011 ° z C-0.5 0 0