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Home My WebLink About20140498 Ver 1_More Info Received_20140627Cpr ENGINEERING AND SURVEYING, INC. Land Development Consulting June 24,2014 Attention: Karen Higgins. i NC DWQ, WBSCP Unit rNR 512 North Salisbury Street, Raleigh, NC 27604 Re: Additional information request J U N 2 7 E U 14 For Layfayette Landing Apartments and Villas CPT Pro ect No. 1215 -13 COG Project No. 2014 -0260 ' wA a1AUTY 3 . , Mrs. Higgins: 1 have addressed Sue Homewoods information request and 1 have enclosed 3 copies of the information she noted in her letter. Please feel free to call me with any questions. Sincerely, CPT Engineering and Surveying, Inc., Robert D. Thompson, P.E. tw D 4400 Tyning Street, High Point, NC 27265 Phone: 336 - 812 -8800 ext. 313 Fax: 336- 812 -8780 Email: dannyt @cptengineering.com City of Greensboro 6 J North Caroh na Authorization Certificate June 20, 2014 Mr. Danny Thompson, PE CPT Engineering and Surveying, Inc. 4400Tyning Street High Point, NC 27265 Zo14O198 D. JUN 2 7 2014 : NR - WA Eft QUALITY L udl2nda t 3torrtwatar Branch Re: Authorization Certification (Determination of No Practical Alternative) for Stream Buffer Disturbance. Lafayette Landing Apartments and Villas Dear Mr. Thompson: In accordance with the State of North Carolina's Rule 15A NCAC 02B.0250- Randleman Lake Water Supply Watershed, Protection and Maintenance of Riparian Areas, any applicant that intends to disturb Zone 1 and Zone 2 of the stream buffer must show that there is "No Practical Alternative" than to impact the stream buffer. The applicant submitted a "No Practical Alternative Request" on June 20, 2014 stating that the stream buffer disturbances in Zone 1 and Zone 2 were necessary for the construction of stream crossings to access the site, for a sanitary sewer crossing and for the biocell outlets for the 7 stormwater controls and energy dissipaters for the site. The City of Greensboro determined that the permanent impact of 22,544 square feet in Zone 1 and 13,980 square feet in Zone 2 of the Randleman Watersupply Watershed stream buffer were necessary for the installation of two new access roads (Light Horse Lane, General Authors Lane), the upgrade of Ruffin Road, a sanitary sewer connection for the site, energy dissipators and the permanently lined channels from the exit pipes at the biocell to the receiving stream. In addition, the applicant should secure any other required federal, state, and local certifications before the project proceeds. Approved impacts included the following temporary and permanent disturbances: Road Crossings Light Horse Lane (113 LF) General Authors Lane (124 LF) Ruffin Road (122 LF) Sewer Crossing (140 LF) Biocells and Energy Disipators Biocell 1: Zone 1 Temp. 450 SF Biocell 2: Zone 1 Temp. 450 SF Biocell 3: Zone 1 Temp. 450 SF Biocell 4: Zone 1 Temp. 450 SF Biocell 5: Zone 1 Temp. 450 SF Biocell 6: Zone 1 Temp. 450 SF Biocell 7: Zone 1 Temp. 450 SF Zone 1 = 5513 SF Zone 1 = 5380 SF Zone 1 = 7820 SF Zone 1 = 1341 SF Zone 2 = 3723 SF Zone 2 = 2682 SF Zone 2 = 3740 SF Zone 2 = 2175 SF Perm. 240 SF Zone 2 Temp. 300 SF Perm. 160 SF Perm. 270 SF Zone 2 Temp. 300 SF Perm. 180 SF Perm. 270 SF Zone 2 Temp. 300 SF Perm. 180 SF Perm. 270 SF Zone 2 Temp. 300 SF Perm. 180 SF Perm. 270 SF Zone 2 Temp. 300 SF Perm. 180 SF Perm. 300 SF Zone 2 Temp. 300 SF Perm. 200 SF Perm. 210 SF Zone 2 Temp. 300 SF Perm. 140 SF P.O. Box 3136 Greensboro, NC 27402 -3136 www.greensboro- nc.gov (336) 373 -CITY (2489) • TTY # 333 -6930 FES 150: Zone 1 Temp 450 SF Perm. 330 SF Zone,2 Temp. 300 SF Perm. 220 SF FES154b:'Zone 1 Temp. 450 SF Perm. 330 SF Zone 2 Temp. 300 SF Perm. 220 SF This' approval is valid only for the purpose and design that was described in the application. If any modifications are made to the project a'wntten,notificahon describmg,the changes, must be submitted to the Cityof Greensboro Water Resources Department, Engineering Division (Stormwater Engineering Section). If the property is sold, the new.owner,must be,given a copy of the certification and approval letter and is therebyresponsible for complying with all conditions. In addition, the applicant.should secure,any other required federal, state, and local, certifications 'before the project proceeds. This letter completes the review of The City - of`Greensboro, Water Resources Department, Engineering Division (Stormwater Engineering Section) under the Determination `of No Practical Alternative. If you have any questions, please contact Virginia Spillman at 336- 373 -3260 Sincerely, Virginia Spillman, PE Engineering Supervisor Stormwater Cc: Sue Homewood, DWQ Winston Salem Regional Office U.S. Army Corps of Engineers, Raleigh Regulatory Field Office Mr: Danny Thompson, PE -Z()Iqt)4 C�s Illy. LIVII V I L'iu KDOT 50"154A &am TOP: 861.50 4k T 35 T INV. IN 815.73 �5 W. OUT 57556— INV. 10 qb NOW RI RAP ,OV Ib'XI IS 876 V. IN 814.91 WTCH 15 : a . - -" 73.E ZONE I UFFER IMPACTS-- op:b A(o TEMP 450 SF INV. IN W ERM 330 SF INV. CIJ 3 Vw ZONE 2 TEMP, 300 SF PERM. J20 SF A A fcw DAM .... ....... . TC)P•ftbk)5 ......... ....... IW.W .0 ... BIER IMPACT ,ZONE TEMP I 450 SF DM PERM, 240 SF ZONE 2 TEMP 300 SF 160 SF RIP Info PER 6, RAP IMPACT: L (966 INV. IN bbD57 p RAP- ip 8 GLA55 I 1040 ZONE I 575 #174 GLASS MPAU 538q 29 Ift LIP N 2t7 2q4 CA ou TY oP. -06 er 162 NC71NMR-INC-7 AND 5UP.\/EYIW.7, INC. LAYFA I E I I LAWWs APARTMEM AW LIAINV PEVELOPHENT CION5ULTIN6 r4WHrt DRAWW46 CORPORATE LICZHBE NUMBER C-13-5 WCULVIIIIN" HPACt b' RP RAP W*"Ar-7 4400 TYMN& STREET PLAN VIEW 163-164 WvH POINT, NORT04 CAROLINA 21265 CsREE1 SBOR0, NC PHOHE. (Mb) 012-8800 - FAX. (586) 512-9-780 P-11101 5HEET I 870 52 LF 2-i! 855 DATUM AZ9V 860. -Oo v ENSINEERIN6 AND SMVEYIN6, INC. LAND DEYELOPMEHT UleA LTIN6 00RPOR2ATE LIGENSE N mom C. -1575 4400 T fWN6 STREET HI644 POINT, NORTH CAROLIHA,,2T PHONE f�ft1 612 -8900 FAX . i�96) 812 -8780 "W771 DBAG DAM WP P RAP REAM LYFAYYEEM LANDMG AP�41�?1IM AND Yl IAS W"CULVOW WrACT W RIP RAP NPACT PROFILE 'VIEW PGR? MILL, &X&Id CAROLINA IhP.e0, Y.P•41 ENGINEERING AND SURVEYING, INC. uum DeVTLOP-� CONSUL -TIN& GORRORATE LICENSE NUMBER3C i" 4400 TYNIN5 STRUT 1-116H'POINT, NORTH CAROLINA 2T265 PHONE. (986) 8129600 PAX. (336) 812 -8'i8O LAYFAYM LANDING APB AN,D V LLM 62' CULYOU IMPACT 16' POP RAP IMPACT SEC7t0NAL vfEW Csl@EEN9®0I�D, NG' Em molmomm MEIN molmommommim Sri mmmmmml!lllv. Y �� ,, �utl I�� 1 �,,,,,,,�;11 �0 ' ®� - ��►��_�� ►_�- - -• III -0�i _tee.--=- A / / / /. / / / / / / /.'' /.I /iii��- �.____ N..�� mu"U ` wommom , MEN moommommom moommommomm moommommomm ISEEKEEKEENE ENGINEERING AND SURVEYING, INC. uum DeVTLOP-� CONSUL -TIN& GORRORATE LICENSE NUMBER3C i" 4400 TYNIN5 STRUT 1-116H'POINT, NORTH CAROLINA 2T265 PHONE. (986) 8129600 PAX. (336) 812 -8'i8O LAYFAYM LANDING APB AN,D V LLM 62' CULYOU IMPACT 16' POP RAP IMPACT SEC7t0NAL vfEW Csl@EEN9®0I�D, NG' ME J I NEW 5TREAM IMPAGT: 82 L.r. REPL ,INC '30 LF OF EXI5T(N6 PIPE` 48q REPLAGI146 20 LF OF EXI5TIN6 RIP RAP REPLACING 15 -LF ,OF EXI5TI% RIP' RAP', — RELOCATE POWER POLES I I TO 9' FROM BOC F NEE D, / f REMOVq IF NO LCINGERt� / f 1 M POSSEY OLD OUSE (v �� SERV LINE I LUCILLE A BROWN D.B. -1766 PG. 700 TAX 7823967914 ZONED: RS-40 EXISTING USE SINGLE FAMILY I o r r- .. OFAL STATE AO PIPE (DEMO) 1 D / .. - I ID RIP, RAP:, i OFF �� I 0100 UT 16554-0 DA:i 4.4 I~ Derr ; -..;; , VV GAY TO / IMP GT ,182QE .. - c9 j INV IN 853. RIP RAP IM T Q F. f f RIP RAP 40.X26'x25- 1 I ci_A65.2 � f // � I BUFFE PA T \ \ ZONE1 TEMP 450 SF 1 ` \ PERM 270 SF _ /ZONE 2 ,� I INEERIN6 AND 5URVEYIN6, INC, ,LAND DEVELOPMEW GONStLnN&, GORPORA7E;UC4MW M*43M C43V 4400 TYNIM STREET FN&H F"Mr, NORTH GNROUM 2T,2155 PH01,45 (3961812,8800 w F" (9861 812 -8980 j� J J i LAY" FA LA1r lMs APARii" NTS AND YILLA� 02' au valet, nrAOr 4W wr a►r' rracr PLAN VIEW 199 -160 Cs9�ENGBOR0, NG r.", \ \ T �•(.Y�� Y wf iLY - . . M..... '.... \ Y S Y.Y .. .... �\ V.r'tlIN Vi aR n. j� J J i LAY" FA LA1r lMs APARii" NTS AND YILLA� 02' au valet, nrAOr 4W wr a►r' rracr PLAN VIEW 199 -160 Cs9�ENGBOR0, NG r.", EX. ,ELEV. ,STREAM - 'IN) DATUJI eon. ENGINEERING AND SURVEYING, ING. LAND PEvm oAeNT GONSULTM CORPORATE UGBeE NIRSER C -1575 4400 TYNH6 STREET H16H POINT, NORTH GAROLNA 27265 PHONES MOW OD -8800 - FAX Oft) b12-8780 TEMP. COFFER/SANDBAG DAM OF RIP RAP IMPACT NSTALL RIP RAP 3ELOW STREAM 3ED ;AP LAYFAYEM LANDNS APART EMM AND VILLAG W CW.VM MA= 4O' Or RAP IMPACT PROFILE VIEW 1s9 -I60 ,Nc OW-40 VW-4' lo��ll FAmall fmoall W�.- il MRS 0 mmol ir�il7 ■ ■iii OMNI NEI%. ENGINEERING AND SURVEYING, ING. LAND PEvm oAeNT GONSULTM CORPORATE UGBeE NIRSER C -1575 4400 TYNH6 STREET H16H POINT, NORTH GAROLNA 27265 PHONES MOW OD -8800 - FAX Oft) b12-8780 TEMP. COFFER/SANDBAG DAM OF RIP RAP IMPACT NSTALL RIP RAP 3ELOW STREAM 3ED ;AP LAYFAYEM LANDNS APART EMM AND VILLAG W CW.VM MA= 4O' Or RAP IMPACT PROFILE VIEW 1s9 -I60 ,Nc OW-40 VW-4' EN&INEERINS AND SURVEYING, INC. LAND 004 Tn45 GORPOORATE UMMENIRWBER C. -13'P5 4400 WNIN5 5TFMT 4N6H POINr,,WORTN GAROUMT 27265 F"Mes (986) 8128800 - OAX. (3961 812 -8-180 LAYFAYE - L OOWS APARYMM AM VILLM 80' CYLVW WIPA= 4V NP PAPdTIPAGT SECTIONAL VIEW 169 =14 0 Ol�EI OI�O, ka 0.6-MV VWP -4' NONE mqb., -NNEW.M." � \��IIIII�� ■ ■1 Emom, 411111-mmEft"s ■ii��111��;��ii�_ ■��Ilf�ll� ■ ■ ■ \i m MEIER I EN&INEERINS AND SURVEYING, INC. LAND 004 Tn45 GORPOORATE UMMENIRWBER C. -13'P5 4400 WNIN5 5TFMT 4N6H POINr,,WORTN GAROUMT 27265 F"Mes (986) 8128800 - OAX. (3961 812 -8-180 LAYFAYE - L OOWS APARYMM AM VILLM 80' CYLVW WIPA= 4V NP PAPdTIPAGT SECTIONAL VIEW 169 =14 0 Ol�EI OI�O, ka 0.6-MV VWP -4' ENc51NEERIN6 AND `SIJRVEYIN6, ING. ,LAYFAYETTE LANDING APARIMENTB AND YILLA LAWTEVELOWE gtr GOW:UL nN s rt, 6 Pw coRPORAM LIcM way C,4" - aer, 4400'M g* SIRMI PLAN IAEUJ 161 -162 11164 POINT, NOM CAROLINA -2120 C- dMbOBORO, kC ROW, MM) 812 -8800 FAX, MW W-0180 P-40, (:jf&INr=MINC7 AND WRVEYI N6, INC.. LAND'VevBX WNT GONSULT1N6 CORPORATE LIGff45E Nll WM C -1315 4400 MM STREIET 14161 POINT, NORTH CAROLINA 27265 PHA, 05b) 812 -9500 FAX. C3°J6) b12�9 IB0 SHEET 8 s LAYFaYIErrE LAWNS APARTMENTS AND VRJ A G runt cRAw*e ®D' 0 LvrmW'NPAGt W MP RAP:1111PACT PROFILE VIEW 189 -160 c,RB£NSSoRo, NC ENGINEERING AND SURVEYING, INC. L4Y AYETTE.LAOM APARMENTO ,gyp YILL�4b LAND Devmcemea 00N%LnN& PdwuTlc ae CORPORATE LK�E NUMBER 0-015 On' CULVtRT I'VACT 4m' NP RAP l"ACT 4400 IYWt STREET WCTIONAL VIEW I59 -YPV H1644 PONT, NORTH CAROLINA 21265 &MENOMORO, NG PHONEr 0336) 812 -B80O - FAX, 0336) 812 -8180 I&P.4& v.P.4' SHEET S ' M--m-ft'mm NONE ==Own, mom -ME mom ENGINEERING AND SURVEYING, INC. L4Y AYETTE.LAOM APARMENTO ,gyp YILL�4b LAND Devmcemea 00N%LnN& PdwuTlc ae CORPORATE LK�E NUMBER 0-015 On' CULVtRT I'VACT 4m' NP RAP l"ACT 4400 IYWt STREET WCTIONAL VIEW I59 -YPV H1644 PONT, NORTH CAROLINA 21265 &MENOMORO, NG PHONEr 0336) 812 -B80O - FAX, 0336) 812 -8180 I&P.4& v.P.4' SHEET S Pipe butI6Uo,W611-defindd 'Channeill Filter ,b I a6wt Figure G 41 Fitp(ap outlet protection (mcIh4WfivWV8.GWC0JI- 1. La is the length 6f, the �ripraiz i apron. Z. cl�=1.5 times the maximum stone 'dfa'met6r but n_ ot' less 'than 6?. 3..1n a well-defined channbll ex- tend-the-apron up t66,chanriell banks to an =ellev5t16n, of 6`" aboywftie maxiii-num,taiNyatbr depth 6r-totthejop of th6.ba6k, whi6hever is less. .4. Nfiller'blankel or filter fabric should be installed b6t'wee-n the riprap,and soil fo(inda.lipm WTALLAP W BELM TM GTIMM EM ELEVATION ENGINEERING AM, SURVEYING, INC. LAW VEYM.OPHWr C40INI-AULTIN& CORPORATE UU9SE,M#2XR 04" 400 FROM MW 012,8800 — FAY, M94) 812-8180 I,SHEET 10, LAYFAYEMIAMM APARMENTS AND VILLAS PIN" I DIPAWNW PW,IUP DOTALLATMM MI INSTALL THE PERMANENT CULVERT CR0551NG5: The, culvert is to be installed In the dry within ,a ,2 to 3 day window of storm events., 5edlment fencing shall be installed above and below the fill area, wrapping the Fencing around the ends of 'the pipe. Care will be taken to keep clearing and excavation of the stream banks ,and bed to a minimum. Stablilize ,ail dlstrubed areas subject to flowing water with rip rap ,below the stream bed. Upon completion of crossing, fill, compact,,ond stdillze the slopes properly. Remove any in stream sediment control measures. IF not able to install crossing in 'the dry: Then they must be installed with the use of Goffer /Sand bag Dams. The dams will be installed above and below, the culvert installations. Pumps will be used to Install culvert In the dry and divert stream through and away From the crossing installation. 511t fencing will be used, parallel to the crossing to prevent down stream impacts. The installation of culvert will' not proceed until the Flow has been diverted. Upon .completion of, the culvert, divert flow to the permanent culverts, install sediment fencing above the inlet "s and outlet, install outlet protection, fill, compact and stabilize a_ ny part of the stream that is unstable appropriately. The temporary coffer dams shall remain intact and functioning until the all the stream work/stabllizatlons has been completed. Ater the stream; is stabilized and flow has been diverted then fill can be brought up and other utilities and headwalls installed. Check and reinstall any silt fencing than needs to'be repaired on ,a regular ,basis during construction. Mat the slopes above the top of bank with erosion control matting as soon as permanent grade has been estabfished if grass can not be establised. The culvert construction, in order to, divert the Flow From temporary coffer dams to the permanent pipes should, be completed within two weeks. Any material that need to be stockpile near the' stream banks- v4111 be protect by silt fencing and shal l remain no more than, I week. If stockpile is required for longer lengths of time it shall be moved above the temporary sediment baslns that are planned for the site and ,that will be installed before the culvert installation. Any dewatering of the culvert installation area will be pumped to a sediment basin/pond. Sand bag dams will be removed within 2 days after the culvert has been stabilized. ENGINEERING AND SURVEYING, INC. LAND DEVELOPMENT C0N5MTING GOR20RATE LICENSE KMER C-01 4400 TYNIN6 STRMT ,HIGH POINT, NORTH CAROLINA 27265 PHONE, (W16),812 -66000 — PAXi Mb) 812 -0160 LAYFAYETTE LANDMCs APAR?9" ENTB AND VILLAS FEIanT VRAUN" CULV2W1PWALLATWN cofmN660RO, NG