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Item 8 - PlansW W W W W W W W W W W W W W W W W W W W W W W W W W S 0 ° 1 5 ' 4 2 " E 1 7 8 . 9 1 ' N88°19'00"W 209.00' N 0 ° 1 5 ' 4 2 " W 1 7 9 . 2 4 ' MARCUS D. WAYLAND INSTRUMENT NO. D207426882 O.P.R.T.C.T. (Also known as "W. Southlake Boulevard"; 130' R.O.W.) 5' EXISTING UTILITY EASEMENT 10' EXISTING UTILITY EASEMENT 15' EXISTING UTILITY EASEMENT LOT 32, BLOCK 2-COMMON AREA; TIMBER LAKE SECTION 1 CABINET A, PAGE 485; P.R.T.C.T. LUD=MEDIUM DENSITY RESIDENTIAL ZONING: RPUD LOT 32, BLOCK 2-COMMON AREA; TIMBER LAKE SECTION 1 CABINET A, PAGE 485; P.R.T.C.T. LUD=MEDIUM DENSITY RESIDENTIAL ZONING: RPUD LUD=MEDIUM DENSITY RESIDENTIAL ZONING: AG S88°13'35"E 209.01' VARIABLE WIDTH EXISTING UTILITY & SLOPE EASEMENT Volume 15845, Page 244 STATE OF TEXAS VOL. 9848, PG. 22 D.R.T.C.T. SS SS FH W W W W W W W W W W S S S S S S 10' TYPE F1 BUFFERYARD 15' BUILDING LINE 10 ' T Y P E F 1 B U F F E R Y A R D 50' BUILDING LINE 10' (REDUCED WIDTH) TYPE M BUFFERYARD 10 ' T Y P E F 1 B U F F E R Y A R D 15 ' B U I L D I N G L I N E 5 8 106 BUILDING 1 General Office 28' - 1 story 9,913 SF 0.859 AC 7 40 ' B U I L D I N G S E T B A C K X X X X X X X X / / // / / / / / / / / 24' 18' 24' 18' 9' 15' 10' 10' 10.5' APPROX. 310' TO TIMBER LAKE PLACE APPOX. 692' TO STONE LAKES DR. 13' 83' PROP. DUMPSTER W/ 8' MASONRY SCREENING WALL TO MATCH BUILDING & GATE 24' 36' 63' 21' 18' 3' EXISTING 8' MULTI-USE TRAIL PROPOSED FIRE HYDRANT R30' 61' 131' 76' 5' 5' 15' 15' UTILITY EASEMENT F I R E L A N E F I R E L A N E F I R E L A N E F I R E L A N E FIRELANE FI R E L A N E FI R E L A N E FIR E L A N E FIRELANE FIRELANE FIRELANE FIRELANE F I R E L A N E F I R E L A N E F I R E L A N E F I R E L A N E F I R E L A N E F I R E L A N E RECIPROCAL DRIVEWAY EASEMENT EX. CONCRETE 8' MASONRY SCREENING WALL 8' MASONRY SCREENING WALL 13' 13' R30'R30' R30' R20' R54' R30' 185 LF OF PROPOSED 6' WOODEN FENCE 16' ACCESS GATE PROPOSED MONUMENT SIGN 12' FUTURE ACCESS DRIVE GRAPHIC SCALE FEET04020 SCALE: 1" = 20' C SHEET: Copyright 2020, Kirkman Engineering DEVELOPER/OWNER DRAWN BY: JOB NUMBER: CHECKED BY: DESIGNED BY: ISSUE DATE: REV: Texas Firm No: 15874 Kirkman Engineering, LLC TIMBERLAKE OFFICE SR319001 1/31/20 SOUTHLAKE, TEXAS 5200 State Highway 121 Colleyville, Texas 76034 Phone: 817-488-4960 CITY CASE No. ZA19-0025 SITE PLAN FI L E N A M E : PR E L I M I N A R Y S I T E P L A N - E . d w g PL O T T E D B Y : Sa n d y C h a u FU L L P A T H : K: \ J o b s \ S R 3 1 9 0 0 1 _ S o u t h l a k e \ D r a w i n g s \ 0 2 _ S I T E P L A N \ 0 3 - P r o d u c t i o n K: \ J o b s \ S R 3 1 9 0 0 1 _ S o u t h l a k e \ D r a w i n g s \ 0 2 _ S I T E P L A N \ 0 3 - P r o d u c t i o n \ P R E L I M I N A R Y S I T E P L A N - E PL O T T E D D A T E : 2/ 3 / 2 0 2 0 SITE MAP N.T.S. SITE SITE PLAN City Project No. ZA19-0025 TIMBERLAKE OFFICE 0.859 acre tract out of the J.T. Bailey Survey, Abstract No. 97, City of Southlake, Tarrant County, Texas Preparation Date: 01/31/2020 ENGINEER / APPLICANT Kirkman Engineering 5200 TX 121 Colleyville, Texas 76034 Telephone (817) 488-4960 TBPE No. 15874 Contact: Jonathan Schindler, P.E. SURVEYOR Barton-Chapa Surveying 5200 TX 121 Colleyville, Texas 76034 Telephone (817) 864-1957 Contact: Jack Barton LEGEND PROPOSED FACE AND BACK OF CURB PROPOSED FIRE LANE PAVEMENT PROPOSED LANDSCAPE BUFFER AREA PROPOSED SIDEWALK FIRE LANE STRIPING PROPOSED FIRE HYDRANT PROPOSED SANITARY MANHOLE PROPOSED CURB INLET PROPOSED GRATE INLET ACCESSIBLE ROUTE PARKING COUNT FH MH FIRELANE 1 FM 1709SO U T H R I D G E LA K E S P K W Y S H A D Y O A K S D R I V E OWNER SR3 Properties, LLC 1333 Corporate Dr. Suite 264 Irving, TX 75038 Telephone (469) 436-8881 Contact: Steve Barber 10' TYPE F1 BUFFERYARD 15' BUILDING LINE 10 ' T Y P E F 1 B U F F E R Y A R D 50' BUILDING LINE 10' (REDUCED WIDTH) TYPE M BUFFERYARD 10 ' T Y P E F 1 B U F F E R Y A R D 15 ' B U I L D I N G L I N E BUILDING 1 General Office 28' - 1 story 9,913 SF 0.859 AC40 ' B U I L D I N G S E T B A C K / / // / / / / / / / / S 0 ° 1 5 ' 4 2 " E 1 7 8 . 9 1 ' N88°19'00"W 209.00' N 0 ° 1 5 ' 4 2 " W 1 7 9 . 2 4 ' (Also known as "W. Southlake Boulevard"; 130' R.O.W.) 5' EXISTING UTILITY EASEMENT 10' EXISTING UTILITY EASEMENT 15' EXISTING UTILITY EASEMENT S88°13'35"E 209.01' VARIABLE WIDTH EXISTING UTILITY & SLOPE EASEMENT Volume 15845, Page 244 W W W W W W W W W W W W W W W W W W W W W W W W W W W W W SS SS FH W W W W W W W W W W S S S S S S 0 GRAPHIC SCALE (IN FEET) 1 INCH = FEET20 402020 P.O. BOX 28 COLLINSVILLE, TEXAS 76233 PHONE: 972-800-0676 AMY_LONDON@LONDON-LANDSCAPES.NET IRRIGATION NOTE LANDSCAPE PLAN L1.00 H I O S T E M C C T T E SA A ET S T A I R E G 12 O F 9 7 ET X R LDRE CAANDS EP A N NOL D S.Y 1/31/2020 SITE MAP N.T.S. SITE LANDSCAPE PLAN City Project No. ZA19-0025 TIMBERLAKE OFFICE 0.859 acre tract out of the J.T. Bailey Survey, Abstract No. 97 City of Southlake, Tarrant County, Texas Preparation Date: 1/13/2020 OWNER ENGINEER / APPLICANT SR3 Properties, LLC 1333 Corporate Dr. Suite 264 Irving, TX 75038 Telephone: (469) 436-8881 Contact: Steve Barber Kirkman Engineering 4821 Merlot Ave., Suite 210 Grapevine, Texas 76051 Telephone (817) 488-4960 TBPE No. 15874 Contact: Shea Kirkman, P.E. SURVEYOR Barton-Chapa Surveying 4821 Merlot Ave., Suite 210 Grapevine, Texas 76051 Telephone (817) 864-1957 Contact: Jack Barton C Copyright 2020, Kirkman Engineering DEVELOPER/OWNER Texas Firm No: 15874 Kirkman Engineering, LLC TIMBERLAKE OFFICE SR319001 1/31/2020 SOUTHLAKE, TEXAS 4821 Merlot Avenue, Suite 210 Grapevine, Texas 76051 Phone: 817-488-4960 EXISTING 24" OAK TO BE PRESERVED COUNTS FOR 3 ACCENT TREES REQUIRED FOR SOUTH BUFFERYARD 8' HT. BOARD ON BOARD WOOD FENCE SEE CIVIL PLANS FOR DETAILS 8' HT. MASONRY WALL SEE CIVIL PLANS FOR DETAILS 8' HT. MASONRY WALL SEE CIVIL PLANS FOR DETAILS TREE MITIGATION NOTE FM 1709 S H A D Y O A K S D R I V E S O U T H R I D G E LA K E S P K W Y . LANDSCAPE VARIANCE NOTE W W W W W W W W W W W W W W W W W W W W W W W W W S 0 ° 1 5 ' 4 2 " E 1 7 8 . 9 1 ' N88°19'00"W 209.00' N 0 ° 1 5 ' 4 2 " W 1 7 9 . 2 4 ' MARCUS D. WAYLAND INSTRUMENT NO. D207426882 O.P.R.T.C.T. (Also known as "W. Southlake Boulevard"; 130' R.O.W.) 5' EXISTING UTILITY EASEMENT 10' EXISTING UTILITY EASEMENT 15' EXISTING UTILITY EASEMENT LOT 32, BLOCK 2-COMMON AREA; TIMBER LAKE SECTION 1 CABINET A, PAGE 485; P.R.T.C.T. LUD=MEDIUM DENSITY RESIDENTIAL ZONING: RPUD LOT 32, BLOCK 2-COMMON AREA; TIMBER LAKE SECTION 1 CABINET A, PAGE 485; P.R.T.C.T. LUD=MEDIUM DENSITY RESIDENTIAL ZONING: RPUD LUD=MEDIUM DENSITY RESIDENTIAL ZONING: AG S88°13'35"E 209.01' VARIABLE WIDTH EXISTING UTILITY & SLOPE EASEMENT Volume 15845, Page 244 STATE OF TEXAS VOL. 9848, PG. 22 D.R.T.C.T. 64 5 645 6 4 5 10' TYPE F1 BUFFERYARD 15' BUILDING LINE 10 ' T Y P E F 1 B U F F E R Y A R D 50' BUILDING LINE 10' (REDUCED WIDTH) TYPE M BUFFERYARD 10 ' T Y P E F 1 B U F F E R Y A R D 15 ' B U I L D I N G L I N E 5 8 106 BUILDING 1 General Office 28' - 1 story 9,913 SF 0.859 AC 7 40 ' B U I L D I N G S E T B A C K X X X X X X X X / / // / / / / / / / / PROP. DUMPSTER W/ 8' MASONRY SCREENING WALL TO MATCH BUILDING & GATE 6' MASONRY SCREENING WALL 6' MASONRY SCREENING WALL 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 LEGEND GRAPHIC SCALE FEET04020 SCALE: 1" = 20' C SHEET: Copyright 2020, Kirkman Engineering DEVELOPER/OWNER DRAWN BY: JOB NUMBER: CHECKED BY: DESIGNED BY: ISSUE DATE: REV: Texas Firm No: 15874 Kirkman Engineering, LLC TIMBERLAKE OFFICE SR319001 1/31/20 SOUTHLAKE, TEXAS 5200 State Highway 121 Colleyville, Texas 76034 Phone: 817-488-4960 CITY CASE No. ZA19-0025FI L E N A M E : TR E E C O N S E R V A T I O N P L A N . d w g PL O T T E D B Y : Js c h i n d l e r FU L L P A T H : K: \ J o b s \ S R 3 1 9 0 0 1 _ S o u t h l a k e \ D r a w i n g s \ 0 2 _ S I T E P L A N \ 0 3 - P r o d u c t i o n K: \ J o b s \ S R 3 1 9 0 0 1 _ S o u t h l a k e \ D r a w i n g s \ 0 2 _ S I T E P L A N \ 0 3 - P r o d u c t i o n \ T R E E C O N S E R V A T I O N P L A N PL O T T E D D A T E : 1/ 3 1 / 2 0 2 0 SITE MAP N.T.S. SITE City Project No. ZA19-0025 TIMBERLAKE OFFICE 0.859 acre tract out of the J.T. Bailey Survey, Abstract No. 97, City of Southlake, Tarrant County, Texas Preparation Date: 01/31/2020 ENGINEER / APPLICANT Kirkman Engineering 5200 TX 121 Colleyville, Texas 76034 Telephone (817) 488-4960 TBPE No. 15874 Contact: Jonathan Schindler, P.E. SURVEYOR Barton-Chapa Surveying 5200 TX 121 Colleyville, Texas 76034 Telephone (817) 864-1957 Contact: Jack Barton PROTECTED TREE TO REMAIN BORDERLINE TREE PROTECTED TREE TO BE REMOVED TREE PROTECTION FENCE BUFFERYARDS NOTES: ALL EXISTING TREES SHOWN ON THIS TREE SURVEY ARE PROTECTED TREES, WITH A DBH OF SIX (6) INCHES OR GREATER. FM 1709SO U T H R I D G E LA K E S P K W Y S H A D Y O A K S D R I V E OWNER SR3 Properties, LLC 1333 Corporate Dr. Suite 264 Irving, TX 75038 Telephone (469) 436-8881 Contact: Steve Barber TREE CONSERVATION PLAN ALTERED TREE NOTE: ALL PROTECTED TREES SHOWN ON THIS PLAN TO BE ALTERED ARE REQUIRED TO BE REMOVED DUE TO THE PROPOSED IMPROVEMENTS, INCLUDING BUILDING PADS, REQUIRED PARKING AREAS, DRIVEWAYS, FIRE LANES, REQUIRED UTILITY AND DRAINAGE INFRASTRUCTURE AND GRADING. MITIGATION NOTE: DEVELOPER TO MITIGATE THROUGH REFORESTATION OR PAY INTO CITY TREE MITIGATION FUND FOR APPROXIMATELY 211 CALIPER INCHES. MARCUS D. WAYLAND INSTRUMENT NO. D207426882 O.P.R.T.C.T. (Also known as "W. Southlake Boulevard"; 130' R.O.W.) LOT 32, BLOCK 2-COMMON AREA; TIMBER LAKE SECTION 1 CABINET A, PAGE 485; P.R.T.C.T. LUD=MEDIUM DENSITY RESIDENTIAL ZONING: RPUD LOT 32, BLOCK 2-COMMON AREA; TIMBER LAKE SECTION 1 CABINET A, PAGE 485; P.R.T.C.T. LUD=MEDIUM DENSITY RESIDENTIAL ZONING: RPUD LUD=MEDIUM DENSITY RESIDENTIAL ZONING: AG LOT 3, BLOCK 8 STONE LAKES ADDITION EXISTING USE: MEDIUM DENSITY RESIDENTIAL W W W W W W W W W W W W W W W W W W W W W W 64 5 645 6 4 5 BUILDING 1 General Office 28' - 1 story 9,913 SF 0.859 AC X X X X X / / / / / / / / A-4 0.03 ac. A-1 0.81 ac. A-3 0.14 ac. A-2 0.23 ac. EX. STORM PIPE (PUBLIC) FFE= 646.15 PR O P . S T O R M ( P R I V A T E ) EXISTING 15'X3' CURB INLET (S.I. H-1) (RE: TXDOT PERMIT PLANS, DATED 1992, CCSJ-1603-03-018) EXISTING 24" RCP (RE: TXDOT PERMIT PLANS, DATED 1992, CCSJ-1603-03-018) GRAPHIC SCALE FEET04020 SCALE: 1" = 20' C SHEET: Copyright 2020, Kirkman Engineering DEVELOPER/OWNER DRAWN BY: JOB NUMBER: CHECKED BY: DESIGNED BY: ISSUE DATE: REV: Texas Firm No: 15874 Kirkman Engineering, LLC TIMBERLAKE OFFICE SR319001 1/31/20 SOUTHLAKE, TEXAS 5200 State Highway 121 Colleyville, Texas 76034 Phone: 817-488-4960 CITY CASE No. ZA19-0025 POST-DEVELOPMENT DRAINAGE PLAN FI L E N A M E : PR E L I M I N A R Y D R A I N A G E P L A N . d w g PL O T T E D B Y : Js c h i n d l e r FU L L P A T H : K: \ J o b s \ S R 3 1 9 0 0 1 _ S o u t h l a k e \ D r a w i n g s \ 0 2 _ S I T E P L A N \ 0 3 - P r o d u c t i o n K: \ J o b s \ S R 3 1 9 0 0 1 _ S o u t h l a k e \ D r a w i n g s \ 0 2 _ S I T E P L A N \ 0 3 - P r o d u c t i o n \ P R E L I M I N A R Y D R A I N A G E P L A N PL O T T E D D A T E : 1/ 3 1 / 2 0 2 0 SITE MAP N.T.S. SITE LEGEND 100 PROPOSED CONTOUR EXISTING CONTOUR PROPOSED FLOW ARROW DRAINAGE AREA BOUNDARY TIMBERLAKE OFFICE 0.859 acre tract out of the J.T. Bailey Survey, Abstract No. 97, City of Southlake, Tarrant County, Texas ENGINEER / APPLICANT Kirkman Engineering 5200 TX 121 Colleyville, Texas 76034 Telephone (817) 488-4960 TBPE No. 15874 Contact: Jonathan Schindler, P.E. SURVEYOR Barton-Chapa Surveying 5200 TX 121 Colleyville, Texas 76034 Telephone (817) 864-1957 Contact: Jack Barton OWNER SR3 Properties, LLC 1333 Corporate Dr. Suite 264 Irving, TX 75038 Telephone (469) 436-8881 Contact: Steve Barber DRAINAGE NOTE: 1.BASED ON THE TxDOT DESIGN PLANS FOR THE EXISTING DRAINAGE INFRASTRUCTURE WITHIN FM 1709, THE DESIGN FLOW TO THE EXISTING CURB INLET (S.I. H-1) IS 9.6 CFS FOR THE 5-YEAR STORM EVENT, AND THE DOWN STREAM PIPE CAPACITY OF THE 24" RCP IS 38.4 CFS. 2.THE TOTAL FLOW DRAINAGE TO THE EXISTING CURB INLET DUE TO THE DEVELOPMENT OF THIS SITE WILL BE 8.65 CFS FOR THE 100-YEAR STORM EVENT. THE PROPOSED FLOW IS LESS THAN THE DESIGN FLOW, THEREFORE THERE SHOULD NOT BE ANY ADVERSE IMPACTS FROM THE DEVELOPMENT OF THIS SITE. 3.REFER TO TxDOT PERMIT PLANS CCSJ-1603-03-018, DATED 1992, FOR THE DRAINAGE DESIGN OF THE EXISTING STORM DRAIN INFRASTRUCTURE WITHIN TxDOT RIGHT-OF-WAY. City Project No. ZA19-0025 S 0 ° 1 5 ' 4 2 " E 1 7 8 . 9 1 ' N88°19'00"W 209.00' N 0 ° 1 5 ' 4 2 " W 1 7 9 . 2 4 ' MARCUS D. WAYLAND INSTRUMENT NO. D207426882 O.P.R.T.C.T. (Also known as "W. Southlake Boulevard"; 130' R.O.W.) LOT 32, BLOCK 2-COMMON AREA; TIMBER LAKE SECTION 1 CABINET A, PAGE 485; P.R.T.C.T. LUD=MEDIUM DENSITY RESIDENTIAL ZONING: RPUD LOT 32, BLOCK 2-COMMON AREA; TIMBER LAKE SECTION 1 CABINET A, PAGE 485; P.R.T.C.T. LUD=MEDIUM DENSITY RESIDENTIAL ZONING: RPUD LUD=MEDIUM DENSITY RESIDENTIAL ZONING: AG LOT 3, BLOCK 8 STONE LAKES ADDITION EXISTING USE: MEDIUM DENSITY RESIDENTIAL S88°13'35"E 209.01' STATE OF TEXAS VOL. 9848, PG. 22 D.R.T.C.T. W W W W W W W W W W W W W W W W W W W W W W X X X X X EX-1 0.34 ac. EX-2 0.86 ac. EXISTING 15'X3' CURB INLET (S.I. H-1) (RE: TXDOT PERMIT PLANS, DATED 1992, CCSJ-1603-03-018) EXISTING 24" RCP (RE: TXDOT PERMIT PLANS, DATED 1992, CCSJ-1603-03-018) GRAPHIC SCALE FEET04020 SCALE: 1" = 20' C SHEET: Copyright 2020, Kirkman Engineering DEVELOPER/OWNER DRAWN BY: JOB NUMBER: CHECKED BY: DESIGNED BY: ISSUE DATE: REV: Texas Firm No: 15874 Kirkman Engineering, LLC TIMBERLAKE OFFICE SR319001 1/31/20 SOUTHLAKE, TEXAS 5200 State Highway 121 Colleyville, Texas 76034 Phone: 817-488-4960 CITY CASE No. ZA19-0025 PRE-DEVELOPMENT DRAINAGE PLAN FI L E N A M E : PR E L I M I N A R Y D R A I N A G E P L A N . d w g PL O T T E D B Y : Js c h i n d l e r FU L L P A T H : K: \ J o b s \ S R 3 1 9 0 0 1 _ S o u t h l a k e \ D r a w i n g s \ 0 2 _ S I T E P L A N \ 0 3 - P r o d u c t i o n K: \ J o b s \ S R 3 1 9 0 0 1 _ S o u t h l a k e \ D r a w i n g s \ 0 2 _ S I T E P L A N \ 0 3 - P r o d u c t i o n \ P R E L I M I N A R Y D R A I N A G E P L A N PL O T T E D D A T E : 1/ 3 1 / 2 0 2 0 SITE MAP N.T.S. SITE FM 1709SO U T H R I D G E LA K E S P K W Y S H A D Y O A K S D R I V E LEGEND ACRES BASIN NAME DRAINAGE BASIN DRAINAGE AREA EXISTING FLOW DESIGN POINT A1 1.00 ac. 1 City Project No. ZA19-0025 TIMBERLAKE OFFICE 0.859 acre tract out of the J.T. Bailey Survey, Abstract No. 97, City of Southlake, Tarrant County, Texas ENGINEER / APPLICANT Kirkman Engineering 5200 TX 121 Colleyville, Texas 76034 Telephone (817) 488-4960 TBPE No. 15874 Contact: Jonathan Schindler, P.E. SURVEYOR Barton-Chapa Surveying 5200 TX 121 Colleyville, Texas 76034 Telephone (817) 864-1957 Contact: Jack Barton OWNER SR3 Properties, LLC 1333 Corporate Dr. Suite 264 Irving, TX 75038 Telephone (469) 436-8881 Contact: Steve Barber MARCUS D. WAYLAND INSTRUMENT NO. D207426882 O.P.R.T.C.T. (Also known as "W. Southlake Boulevard"; 130' R.O.W.) 5' EXISTING UTILITY EASEMENT 10' EXISTING UTILITY EASEMENT 15' EXISTING UTILITY EASEMENT LOT 32, BLOCK 2-COMMON AREA; TIMBER LAKE SECTION 1 CABINET A, PAGE 485; P.R.T.C.T. LUD=MEDIUM DENSITY RESIDENTIAL ZONING: RPUD LOT 32, BLOCK 2-COMMON AREA; TIMBER LAKE SECTION 1 CABINET A, PAGE 485; P.R.T.C.T. LUD=MEDIUM DENSITY RESIDENTIAL ZONING: RPUD LUD=MEDIUM DENSITY RESIDENTIAL ZONING: AG VARIABLE WIDTH EXISTING UTILITY & SLOPE EASEMENT Volume 15845, Page 244 BUILDING 1 General Office 28' - 1 story 9,913 SF 0.859 AC X X X X X X X X / / // / / / / / / / / W W W W W W W W W W W W W W W W W W W W W W W W W 64 5 645 6 4 5 FFE = 646.15 GT 645.56 TC 646.06 GT 645.65 TC 646.15 GT 644.87 TC 645.37 GT 644.47 TC 644.97 GT 643.78 TC 644.28 GT 645.02 TC 645.52 GT 645.07 TC 645.57 GT 645.00 TC 645.50 GT 644.96 TC 645.46 644.69 645.47 647.05 644.61 644.14 644.47 645.03 GT 644.61 TC 645.11 3:1 MAX 3 : 1 M A X TW 646.00 BW 643.36 TW 646.00 BW 644.90 GRAPHIC SCALE FEET04020 SCALE: 1" = 20' C SHEET: Copyright 2020, Kirkman Engineering DEVELOPER/OWNER DRAWN BY: JOB NUMBER: CHECKED BY: DESIGNED BY: ISSUE DATE: REV: Texas Firm No: 15874 Kirkman Engineering, LLC TIMBERLAKE OFFICE SR319001 1/31/20 SOUTHLAKE, TEXAS 5200 State Highway 121 Colleyville, Texas 76034 Phone: 817-488-4960 CITY CASE No. ZA19-0025 PRELIMINARY GRADING PLAN FI L E N A M E : PR E L I M I N A R Y G R A D I N G P L A N . d w g PL O T T E D B Y : Js c h i n d l e r FU L L P A T H : K: \ J o b s \ S R 3 1 9 0 0 1 _ S o u t h l a k e \ D r a w i n g s \ 0 2 _ S I T E P L A N \ 0 3 - P r o d u c t i o n K: \ J o b s \ S R 3 1 9 0 0 1 _ S o u t h l a k e \ D r a w i n g s \ 0 2 _ S I T E P L A N \ 0 3 - P r o d u c t i o n \ P R E L I M I N A R Y G R A D I N G P L A N PL O T T E D D A T E : 1/ 3 1 / 2 0 2 0 LEGEND 100 PROPOSED CONTOUR EXISTING CONTOUR FLOWLINE GRADE BREAK ACCESSIBLE ROUTE SPOT GRADE EXISTING FLOW ARROW PROPOSED FLOW ARROW FG=100.50 SITE MAP N.T.S. SITE FM 1709SO U T H R I D G E LA K E S P K W Y S H A D Y O A K S D R I V E GRADING PLAN TIMBERLAKE OFFICE 0.859 acre tract out of the J.T. Bailey Survey, Abstract No. 97, City of Southlake, Tarrant County, Texas Preparation Date: 01/31/2020 ENGINEER / APPLICANT Kirkman Engineering 5200 TX 121 Colleyville, Texas 76034 Telephone (817) 488-4960 TBPE No. 15874 Contact: Jonathan Schindler, P.E. SURVEYOR Barton-Chapa Surveying 5200 TX 121 Colleyville, Texas 76034 Telephone (817) 864-1957 Contact: Jack Barton OWNER SR3 Properties, LLC 1333 Corporate Dr. Suite 264 Irving, TX 75038 Telephone (469) 436-8881 Contact: Steve Barber City Project No. ZA19-0025 BUILDING 1 General Office 28' - 1 story 9,913 SF 0.859 AC X X X X X X X X / / // / / / / / / / / W W W W W W W W W W W W W W W W W W W W W W W W W W W W W X X X X X X X X X X X X X X X X X X X X X X X S S SS SS FH W W W W W W W W W W S S S S S S S S S S S S S S S S S S S S S S S S S S S S S 0 ° 1 5 ' 4 2 " E 1 7 8 . 9 1 ' N88°19'00"W 209.00' N 0 ° 1 5 ' 4 2 " W 1 7 9 . 2 4 ' (Also known as "W. Southlake Boulevard"; 130' R.O.W.) S88°13'35"E 209.01' STATE OF TEXAS VOL. 9848, PG. 22 D.R.T.C.T. CONNECT TO EXISTING 12" WATER LINE PROP. IRR. WATER METER PROP. FIRE HYDRANT PROP. SSWR MANHOLE AND SERVICE PROP. SSWR MANHOLE PROP. SSWR MANHOLE CONNECT INTO EXISTING 6" SANITARY SEWER STUB OUT PROP.15' UTILITY EASEMENT PROP. DOM. WATER METERS PROP. FIRE LINE PROP. PUBLIC 6" SSWR LINE PR O P . P U B L I C 6 " S S W R L I N E PROP. PRIVATE 6" SSWR SERVICEINSTRUMENT NO. MARCUS D. WAYLAND D207426882 O.P.R.T.C.T. LUD=MEDIUM DENSITY RESIDENTIAL ZONING: AG LOT 32, BLOCK 2-COMMON AREA; TIMBER LAKE SECTION 1 CABINET A, PAGE 485; P.R.T.C.T. LUD=MEDIUM DENSITY RESIDENTIAL ZONING: RPUD LOT 32, BLOCK 2-COMMON AREA; TIMBER LAKE SECTION 1 CABINET A, PAGE 485; P.R.T.C.T. LUD=MEDIUM DENSITY RESIDENTIAL ZONING: RPUD EXISTING 12" WATER LINE EXISTING 36" RCP PROP. DOMESTIC WATER METER WATER EASEMENT 16'5.4' 7.5' 7.5' EXISTING 6" SANITARY SEWER STUB OUT PROP. 6" GATE VALVE & DOUBLE CHECK VALVE PROP. FDC GRAPHIC SCALE FEET04020 SCALE: 1" = 20' C SHEET: Copyright 2020, Kirkman Engineering DEVELOPER/OWNER DRAWN BY: JOB NUMBER: CHECKED BY: DESIGNED BY: ISSUE DATE: REV: Texas Firm No: 15874 Kirkman Engineering, LLC TIMBERLAKE OFFICE SR319001 1/31/20 SOUTHLAKE, TEXAS 5200 State Highway 121 Colleyville, Texas 76034 Phone: 817-488-4960 CITY CASE No. ZA19-0025 PRELIMINARY UTILITY PLAN FI L E N A M E : PR E L I M I N A R Y U T I L I T Y P L A N . d w g PL O T T E D B Y : Js c h i n d l e r FU L L P A T H : K: \ J o b s \ S R 3 1 9 0 0 1 _ S o u t h l a k e \ D r a w i n g s \ 0 2 _ S I T E P L A N \ 0 3 - P r o d u c t i o n K: \ J o b s \ S R 3 1 9 0 0 1 _ S o u t h l a k e \ D r a w i n g s \ 0 2 _ S I T E P L A N \ 0 3 - P r o d u c t i o n \ P R E L I M I N A R Y U T I L I T Y P L A N PL O T T E D D A T E : 1/ 3 1 / 2 0 2 0 LEGEND EXISTING ELECTRIC PROPOSED SEWER PROPOSED WATER EXISTING SEWER EXISTING WATER PROPOSED FIRE HYDRANT PROPOSED MAN HOLE OHE SS W Ex SS Ex W FH MH SITE MAP N.T.S. SITE FM 1709SO U T H R I D G E LA K E S P K W Y S H A D Y O A K S D R I V E UTILITY PLAN City Project No. ZA19-0025 TIMBERLAKE OFFICE 0.859 acre tract out of the J.T. Bailey Survey, Abstract No. 97, City of Southlake, Tarrant County, Texas Preparation Date: 01/31/2020 ENGINEER / APPLICANT Kirkman Engineering 5200 TX 121 Colleyville, Texas 76034 Telephone (817) 488-4960 TBPE No. 15874 Contact: Jonathan Schindler, P.E. SURVEYOR Barton-Chapa Surveying 5200 TX 121 Colleyville, Texas 76034 Telephone (817) 864-1957 Contact: Jack Barton OWNER SR3 Properties, LLC 1333 Corporate Dr. Suite 264 Irving, TX 75038 Telephone (469) 436-8881 Contact: Steve Barber NOTE: PRIVATE SANITARY SEWER SERVICES NEED A PLUMBING PERMIT AND MUST BE INSPECTED BY BUILDING INSPECTIONS PRIOR TO BURIAL. KIRKMAN ENGINEERING :: 5200 State Highway 121, Colleyville, TX 76034 Ph: 817-488-4960 :: TBPE Firm #15874 Page 1 of 4 Timberlake Office – Preliminary Drainage Study City of Southlake, Tarrant County, Texas January 31, 2020 Prepared for: Department of Planning & Development Services City of Southlake 1400 Main Street, Suite 310 Southlake, Texas 76092 Prepared by: Kirkman Engineering 5200 State Highway 121 Colleyville, TX 76034 817.488.4960 KIRKMAN ENGINEERING :: 4821 Merlot Avenue, Suite 210, Grapevine, TX 76051 Ph: 817-488-4960 :: TBPE Firm #15874 Page 2 of 4 1.0 INTRODUCTION The Timberlake Office is a proposed office building located along Southlake Blvd, approximately 0.25 miles east of Shady Oaks Dr. The office is proposed on a 0.859-acre site, which was recently cleared of the residential structures. The current effective FEMA Flood Insurance Rate Map (FIRM) for this area of Tarrant County, panel 85, dated September 25, 2009, shows that the full extents of the property is located within Zone X, which is an area determined to be outside the 0.2% annual chance floodplain. The owner of this site is proposing to rezone the property for office use. The purpose of this report is to analyze any drainage impacts that changing the use for this property would have on-site or on adjacent properties. Existing Residence Zoned “AG” KIRKMAN ENGINEERING :: 4821 Merlot Avenue, Suite 210, Grapevine, TX 76051 Ph: 817-488-4960 :: TBPE Firm #15874 Page 3 of 4 2.0 HYDRAULICS Kirkman Engineering has completed a drainage analysis for the existing site to determine the total runoff currently being discharged to adjacent properties along with a post-developed drainage analysis to determine the storm water effects of the site development. The rational method was used to compute the total runoff values. The runoff coefficients are based on the City of Southlake drainage criteria, and the time of concentration calculations are based on the iSWM Technical Manual: Hydrology. 2.1 EXISTING CONDITIONS HYDRAULICS The site has been cleared of the existing improvements within the property boundary. There are currently no drainage structures on-site and the existing topography directs flows universally away from the original residence on the property. The land is currently zoned AG. The existing use of the property was single family residential, therefore a runoff coefficient of 0.51 was used per the City of Southlake’s drainage criteria. Using the rational method, this results in a total runoff value of 4.05 cfs. The runoff discharges directly to adjacent properties to the south and east. 2.2 PROPOSED CONDITIONS HYDRAULICS The purpose of this rezoning is to allow for office us. Per the proposed improvements associated with this development, the total runoff from the overall site will increase to 6.99 cfs. However, the proposed flow draining to the adjacent properties will decrease from existing conditions due to the site is being designed to allow for most of the discharge to flow north to FM 1709. Once developed, the amount of flow from this site to the residential property to the south and east will be reduced to 0.45 cfs. The remainder of the on-site flow will drain to the north and onto FM 1709, and ultimately to an existing curb inlet to the west. This inlet and associated storm pipe were designed to accept our on-site developed flow. Per the TxDOT drainage infrastructure plans, the design flow for this existing inlet is 9.6 cfs and the pipe capacity is 38.4 cfs. After development of our site, the total flow draining to the existing inlet will be 8.65 cfs, which is less than the design flow. Existing Residence 0.86 0.51 0.44 10.0 6.01 2.63 9.24 4.05 Drains to Adjacent Properties Q5 (c.f.s.) I100 (in./hr.) Q100 (c.f.s.)Acres CA Drainage Area Runoff Coeff. Tc (min.) DRAINAGE AREA CALCULATIONS (EXISTING) CommentsI5 (in./hr.) Proposed Office 0.86 0.88 0.76 10.0 6.01 4.54 9.24 6.99 Total Developed Flow Q100 (c.f.s.)Comments DRAINAGE AREA CALCULATIONS (PROPOSED) Drainage Area Acres Runoff Coeff.CA Tc (min.) I5 (in./hr.) Q5 (c.f.s.) I100 (in./hr.) KIRKMAN ENGINEERING :: 4821 Merlot Avenue, Suite 210, Grapevine, TX 76051 Ph: 817-488-4960 :: TBPE Firm #15874 Page 4 of 4 3.0 CONCLUSION This report includes preliminary drainage computations pertaining to the existing conditions and proposed conditions for the Timberlake Office Zoning case. The post-development flow will see an increase in runoff, but this increase flow will be redirected to the north and into the existing TxDOT drainage system. Once developed, the flow to the adjacent properties will be reduced from existing conditions. A more detailed study of the site, along with the downstream components of the existing drainage infrastructure will be completed during the full civil design phase of the project.