Loading...
HomeMy WebLinkAbout20220060 Ver 1_More Information Received_20220223Strickland, Bev From: Camden Brunick <cbrunick@sandec.com> Sent: Wednesday, February 23, 2022 12:18 PM To: Norton, April R CIV USARMY CESAW (USA) Cc: Cohn, Colleen M; Deborah Shirley Subject: [External] RE: Request for Additional Information (SAW-2021-02531) Comet Raleigh Apartments Attachments: Impact Maps compiled.pdf CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to Report Spam. Good afternoon April, I am a little confused as to how the permanent stream loss impacts total greater than 0.02 acres? I am calculating 860 SF of permanent stream loss which totals 0.0197 acres. 653 SF of permanent stream impact for impact 1 + 207 SF of permanent stream impact for impact 2 = 860 SF? I could be missing something here, so please let me know. I've reattached the impact maps that were included within my PCN attachments in the PCN application above. Thank you, CAMDEN BRUNICK Environmental Consultant Soil & Environmental Consultants, PA North Quarter Office Park 8412 Falls of Neuse Road, Suite 104 Raleigh, NC 27615 (919)219-6162(cell) From: Norton, April R CIV USARMY CESAW (USA) <April.R.Norton@usace.army.mil> Sent: Wednesday, February 23, 2022 10:41 AM To: Camden Brunick <cbrunick@sandec.com> Cc: Cohn, Colleen M <colleen.cohn@ncdenr.gov> Subject: Request for Additional Information (SAW-2021-02531) Comet Raleigh Apartments Dear Camden Brunick, Thank you for your Preconstruction Notification and attached information, dated 1/10/2022, for the above referenced project. I have reviewed the information and need clarification before proceeding with verifying the use of Nationwide Permit (NWP) 29 (https://saw-reg.usace.army.mil/NWP2021/NWP29.pdf). Please submit the requested information below (via e-mail is fine) within 30 days of receipt of this Notification, otherwise we may deny verification of the use of the Nationwide Permit or consider your application withdrawn and close the file: i 1) Cumulative permanent stream impacts for this project appear to exceed the 0.02-acre threshold per NWP 29 Regional Condition 3.2, and therefore compensatory mitigation would be required. My calculation indicates that 0.0213 acre of streambed would be loss because of the proposed impacts. Please verify if this is correct. Should the proposed impacts exceed the 0.02-acre threshold, please submit a compensatory mitigation plan. The mitigation rule generally prescribes purchasing stream credits first through a mitigation bank with stream credits available in this 8-digit HUC, or second through the NC Division of Mitigation Services; please provide a mitigation acceptance letter from your proposed compensatory mitigation provider. Typically, compensatory mitigation is required at a 2:1 credit to impact ratio unless otherwise justified based on evaluation of aquatic function. 2) Given the proximity of this project to known populations of several threatened/endangered mussel species, as well as potentially suitable habitat for these species occurring the project action area, we will initiate informal consultation with the US Fish and Wildlife Service (USFWS). Please note that the Corps cannot verify the use of an NWP until Section 7 consultation is complete. Please let me know if you have any questions. Sincerely, April Norton April R. Norton Regulatory Division US Army Corps of Engineers 3331 Heritage Trade Drive, Suite 105 Wake Forest, North Carolina 27587 Phone: (919) 441-3637 Fax: (919) 562-0421 Email: April.R.Norton@usace.army.mil 2 11 HARTHAM PARK AVE STREAM C 1 M PACT #4 a \ I i vgN• 444 H I COMET RALEIGH APARTMENTS TOTAL IMPERVIOUS AREA = 259,606 SF TOTAL IMPERVIOUS PERCENTAGE = 29.14% RESTORATION NOTES FOR TEMPORARY IMPACTS: WETLANDS ARE TO BE RETURNED TO ORIGINAL GRADE AND SEED WITH WETLAND SEED MIX. STREAMS SHOULD BE RETURNED TO ORIGINAL CONTOURS AND CORE FIBER MAT EMBANKMENTS AS NEEDED. IMPACT TOTAL ZONE 1 ROAD IMPACT 19,378 SF ZONE 2 ROAD IMPACT 10,470 SF ZONE 1 ALLOWABLE UTILITY IMPACT 1,898 SF ZONE 2 ALLOWABLE UTILITY IMPACT 1,902 SF ZONE 1 ALLOWABLE BUFFER IMPACT 714 SF PERMANENT STREAM IMPACT 860 SF 197 LF PERMANENT STREAM IMPACT - NO LOSS(RIP RAP) 520 SF 93 LF TEMPORARY IMPACT TOTAL TEMPORARY STREAM IMPACT 641 SF 67 LF SHEET 1 CE GROLP 301 GLENWOOD AVE. SUITE 220 RALEIGH,NC 27603 PHONE: 919-367-8790 FAX: 919-322-0032 250' NORTH 0 250' SCALE: 1" = 250' 500' REVISIONS: (1) REVISED PER S&EC COMMENTS. 12/13/2021 (2) REVISED PER S&EC COMMENTS. 01/03/2022 COMET RALEIGH APARTMENTS OVERALL KEY MAP 2801 FORESTIVILLE RD RALEIGH, NC (• „5�5 (/ 1",VA,I // �or�y�\--y '/�� �� / �� 1'i --- I, �III , k� „\s,_&�8\ �} 4 4 , d� \ �\ \ \ Z ,--..- / i� '. VA 5 \VA � , S V � , � � s OVA \ A \ \ _r j- , \ J 155±` _ >' ? \� \ \\ / 290 = ^ - ' �� \\ \ r ' 295 2 — vAVA/ r -7r r� - J II \ i A �S _ \ �A����= 285 — — \N. / /G�� � -- R ,o� A v \ = r= =��-\V '§ZREAM =29 )I I) �% �AG��A r`=j ' �� = - 2801�� VA �A� —r % . r- — .1�/ I � �V �L . �� p I ! 55?2s �. j V� �� 1 i 9 1 Iv //r -� -may"CD o f.0 � 4 ilr \5�1\� �Jl��7�j� �svAvv\ Vv ?t 1 L , / I) III � //� 5 AVA���1��\� A \ I I ' \ I //�� / / / L���,, II(/ 5 \\\ VA\V5 �� (� I� / // / \ V\\V� \ V �'� \ ��,, I IIII III(/ (/ I �i0���\\�VA� \ �t►� �\ VA \\V V / / �� (\ A , \ v LZ I J 11 1 V A\ 1 . �I IIII a1loo 11' \» \ LOT 2 ��� lin �� N/F ) 2 L' v. 5 -- v �a �/ I�VA V . PERRY FARM LLCJ ) \ -�/�� _ -- 7 \A \\ PIN 1748-73-3146 ( L \, �� .__, r \ \ TDB 12849 PG 1995" \•. L — � - -\`' _./ �\\\\ BM 2007 PG 1418 1 1�'Th I� \ VA , ZONED CX-3-CU ri� A�,� r n �\\ V A\A VACANT 7-/� 5 h\`\ \\ \ \ z 1 �/-�^/� J\\\ \ VA US4011SCO R511Eo/ III A (\ 7 ACoE S RIG -FIT -OF -WY L� 5 �� III �1(� V \ \ \� ) %� \ .•\/ /t • ph // /y !�\��\sue ��`�' a� \30 `` -%f� f y `\��\ ��\ \\ �,` �\ \\1���\ `1 I�\�)\tI\1\�L\c�\�� .. �'`� --�-i- . �i �� \\ 1 \ v -- g) l p ,' J -V A C� --' V \ VV V I //_v�-_ti, r;-,,Tvac., v.�--,v ,/----r1,r1c �— / w ~ ,7_I I,, -'`>>�vv�_ --,, A;,vv ,� =�-,�, �,�1 POND 2 (�����z8��/��� //! J//i// r - '/ / V �21.6ny1 a 315� \ VA VV \ \ --,-- // VA ��� t VA / VA �� / ��3 �A ] li //// j/ `r / as N 2 J \ \ \ \� �tlF - (TY-P �\\ / 305 i _f / _ i0 mob. /,�/ 33 J \ \ \ \\\ \ ` % 1— 300 \\ �\ ��� 2e Loaf �tls 0 - / /i �/ ���� -- �/ �. / // / 0 / \ c9 I ` \ / -� r r/ \ `1 \ \\�\\ 29 \ ��\300� � WETLAND / ����� / %�� � ;fr I I ,: / 1. _ I ��� �� — �' 290, ��95 -� ��o��— / % S 3 ,/ / vv /� o,�_ =�/t 5/ le','--'>-'��,a�s�� �� /- 11i 1�( 1��o c l5 �—_if wL\VA rJ�� -z8ZaQ,. 995 5�� — =j' /� ��' J;.Z.i�'o. .- ���b-' fi r ,p° /Jt 1f I 1 I ram � i �� i ,:by, —ram / E �— c� , i%j I �` r— / ` / �� % \ \ �� 280-/ / - STREAM Doi — — � �� - -- � / %� W o / \3 — S % i —/ rI r( ( i/ ri %/�i_77___ Avwv� vv v v IIII / fj '...:":-IC'',: /0 �/_ 7� \0 :7_7- ; :::^��\\\\\\\(� \� \^1 t I \ ��V„�./�w/�/ �.� v / \\`�_ ) / : w ' r ,� \ `„ Z�� �.� \ \\ \ \ \� \� \� f- \ � \ I A ....--/ --/ � �/ / /j/ ram, 3h v 3i5 � 5 � A\\�� V V�� \� � � /1 �� %. ��/ / /� ��� tir5 A \\\\ \ •�� \ �� wry �— �� ��/�yw���1v �)v �v v ��-� ��\ / I� z / %�/� rr / VA ✓ ✓ —� A \\� �— _�v 300 /� /� v /-. / - \ti ass �` — ti\VAV� < t �\ \ � // `'/� /// // v f �� r `1 \\\ 4 i �0 /j/ r i� / 0 'r' / ✓ /��- AVA� OVA \ \/� 0, / /�/�/�� �/� � V � ° < - ( -\) �' f' \ VA\AV VL -� � " j�i!� - /,J7'7 \\A\1A, ri \ 7 0 A �L \ V A o AVA AwA�A �jl( / / ° \�� — �� i '-- V` 2 V Q e130 � � ti — v ti v v ti _� �� �� n,�� i:v:1T o vet �� I -- - ter- �\L\ 1\ \ \\�\ �- -,� \\ \� \ \ \ ') < ��� \ v� �� �� v v��_ v �v / iv/ 1 / --- �� v5� ti /o�� ti�J�� l a qv ;� v v v t //'JI �� //ii� / Z \ z ` 'J I J _ f 7 ,� , �- _ L l \ \ o I 1 (, / I/f /7/ 43:5- \--7 \\, '' ,1 \ \\ 280 a CE GROLP 301 GLENWOOD AVE. SUITE 220 RALEIGH,NC 27603 PHONE: 919-367-8790 FAX: 919-322-0032 180' NORTH 0 180, SCALE: 1" = 180' 360' REVISIONS: (1) REVISED PER S&EC COMMENTS. 12/13/2021 (2) REVISED PER S&EC COMMENTS. 01/03/2022 COMET RALEIGH APARTMENTS EXISTING CONDITIONS 2801 FORESTIVILLE RD RALEIGH, NC \ \\ \ Q \ \ \ \((r, \\ \4 \1\ \ \1) ` /\/1 \ \ \ \ \ \ ( \ STREAM B / \ \ \\ \\ 1 1 \\ \\ 1 \ \\ V A V A \ \ \V,, 121 \'\ 1 \ \ \ \ \ \ N \....... ____-___\ 444.. \ \ \ \ \ .'ie* - \ STREAM PERMANENT IMPACT NO LOSS '(RIP RAP)= 55 LF, 240 SF EXISTING TOP - OF BANK (TYP) / / / / / / / / / PROPOSED TREELINE / DISTURBED LIMIT LINE (TYP.) ZONE 2 ROAD IMPACT 2,749 SF ZONE 1 ROAD IMPACT 5,774 SF STREAM PERMANENT IMPACT 140 LF, 653 SF 1 ZONE 1 IMPACT FOR TEMPORARY CONSTRUCTION / BY-PASS BERM** STREAM TEMPORARY CONSTRUCTION / BY-PASS BERM IMPACT 36 LF, 96 SF ORDINARY HIGH WATER MARK (TYP) \ \ EXISTING TOP OF BANK (TYP) \ IMPACT TOTAL ZONE 1 ROAD IMPACT 11,288 SF ZONE 2 ROAD IMPACT 5,373 SF PERMANENT STREAM IMPACT 653 SF 140 LF PERMANENT STREAM IMPACT - NO LOSS(RIP RAP) 240 SF 55 LF *RIP RAP TO MATCH EXISTING CHANNEL GEOMETRY **TEMPORARY BY-PASS BERM WITH TEMPORARY BY-PASS PUMPING FOR PIPE INSTALLATION. TEMPORARY IMPACT TOTAL TEMPORARY STREAM IMPACT 96 SF 21 LF W•••••••••• 1•••••••••••••••••• ZONE 1 ROAD IMPACT ZONE 2 ROAD IMPACT STREAM IMPACT STREAM IMPACT NO LOSS (RIP RAP) CEGRO[.P 301 GLENWOOD AVE. SUITE 220 RALEIGH,NC 27603 PHONE: 919-367-8790 FAX: 919-322-0032 30' 0 NORTH 30' SCALE: 1" = 30' 60' REVISIONS: (1) REVISED PER S&EC COMMENTS. 12/13/2021 (2) REVISED PER S&EC COMMENTS. 01/03/2022 COMET RALEIGH APARTMENTS IMPACT #1 ROAD CROSSING 2801 FORESTIVILLE RD RALEIGH, NC 285 280 275 270 265 I 36" COVER MI CATCH —� BASIN PROPOSED GRADE 12' WATER MAIN 18" RCP 24" MIN CLEAR • DUAL 66" RCP DUAL 66" RCP "3" CLASS 54 RIPRAP L x 16'W x 24"D PAD —D50 (MATCH 10" DMAx-15" EXISTING (1) 66" RCP BURIED 12" TO ALLOW AQUATIC PASSAGE — — — AT — =.A_ •• RIPRAP ewe.. — CHANNEL GEOMETRY) — — ._ ENDWALL •••�•••••••••r ••o••••••••••••••••••••• •••••••••••••••••••••••• ••u••••••••••••••••••ri•• INV IN =269 50 `•••••••••••••••••••••••••••••i•••••••••••••••••• t••••• ••••••••••••••••••••••�•••••• �••••••••••••••••••••••••••••••••••••••••• ENDWALL "' INV OUT =268.75 CHANNEL CROSS SECTION STREAM BOTTOM — CROSS SECTION I :." RCP BURIED kLLOWAQUATICPASSAGE IMPACT — ROADWAY 12" TO RETAINING WALL 0 (V O O r- o r N cv N- u O cri N cv O LQ r LC) o N cv co CO r7 O o r N N co N _.- 0 o N- r N CV O (._ O o N- r N cv CO d- O o) Co N cv .1-Ln r) O) o CO CD N cv N O) O N 285 280 275 270 265 10+00 11+00 12+00 13+00 SHEET 4 CE GROLP 301 GLENWOOD AVE. SUITE 220 RALEIGH,NC 27603 PHONE: 919-367-8790 FAX: 919-322-0032 30' 0 30' 60' SCALE: 1" = 30' REVISIONS: (1) REVISED PER S&EC COMMENTS. 12/13/2021 (2) REVISED PER S&EC COMMENTS. 01/03/2022 COMET RALEIGH APARTMENTS IMPACT #1 ROAD CROSSING PROFILE 2801 FORESTIVILLE RD RALEIGH, NC • EXISTING TOP OF BANK (TYP.) ri�ea/!// lrrl /! . .. /!11 III/ /litla IIl/ li.p 1/1� ' k . rii'�iiiiiiii//' ��►:�r/°iiii/iiiii�'iiiii�/�� • niiil• iiiii' //iia., ��%i•��/niiii/'rnliilvii!//i►ii�i/'!;iiii�/�����I/�r:/� iiiii /i11;'ierciiiiin�iiiinumnrl� ��iii/y► ==�Iv/l i► i jii'1�1�\�111//rlm��/■1//�% 1�///■'/!!11 I���//• 11!/l111r Irl�l/G. /1■pl 11!/If���!// / \/!/ i�//��11!/��111�!1�1��/IlI��I/ //�/ .... l_I//!/! umen..."...rmminammusl1/II////�i�///!!��/ii/!■/k 1\�!/!rl//:%1 � /11�11�//� _ /I/�1�1%//■li y!///II �I//■11/III�i/11/!//\���//C►i�1111///I�%11��1\ /1�1%��i ///rl■■ /Irl�� /'r/rl/ II!!//!%iors.a\/ ' aij/11///liraip/11���!/ a ��I'//■, 11!!!!//a i..................... an ni is mumm uiismacnimui iir a iii ri�n/i:'i%ie ii i/i i!v�ii/ii/r��ll� i/�Ili■i �!hiiii/ i�i/► a/ Ir .. mgr.— /r !r/ ./ /r iii commix /■/iiuii anion //■. j 1110N' 'r�-� �Illuvini/■//■rl 111151llii:61 .iv�ii �► h nt ■!n� I �i 'I�i1v �r/� ■Aol Il11/�lrq/il/1p11■■,_ qp/p///�/il/.!!//1////1■ lr�i/11/ !I/!' - . r vll!/ 11111 I 011 1 !r is/- /!� u/..- .■III _ �� ` w nin■�--' 111' I� I �,�1 ...ol I ilii IL( STREAM PERMANENT.II►►.� dull:111111kii • �� I�,IMPACT 57 LF, 207 SF II 1 1 STREAM PERMANENT � � II 'iIMPACT NO LOSS1 1��, I �II���I�IcU4B�FDU' iiii `(RIP RAP)= 38 LF, 280 SFr' I II 1�Fl�Tq A�48"RCpIISTREAM TEMPORARY �Q 1 i -�1'i1IMPACT15LF,41SF .��o — — 11+08.36 STREAM D ORDINARY HIGH WATER MARK (TYP.) // N fV Z u_ /CO / i/ PROPOSED TREELINE_] / DISTURBED LIMIT LINE (TYP.) PROPOSED TREELINE / DISTURBED LIMIT \ LINE (TYP.) \ \ ZONE 2 ROAD IMPACT 2,465 SF ZONE 1 ROAD IMPACT \ 3,789 SF ..On11//O/1I�111■rQ��'�.� "► i ` ■yr I ��1��.■� , 04,64,b1►��� i1111'llll 7 77 77 77 EXISTING TOP OF BANK (TYP.) 7- \ ORDINARY HIGH WATER MARK (TYP.) 77 ZONE 1 IMPACT FOR TEMPORARY CONSTRUCTION / BY-PASS BERM** �29p 77 ZONE 1 ROAD IMPACT \- 4,301 SF ZONE 2 ROAD IMPACT 2,632 SF —295 IMPACT TOTAL ZONE 1 ROAD IMPACT ZONE 2 ROAD IMPACT PERMANENT STREAM IMPACT PERMANENT STREAM IMPACT - NO LOSS(RIP RAP) 8,090 SF 5,097 SF 207 SF 280 SF 57 LF 38 LF *RIP RAP TO MATCH EXISTING CHANNEL GEOMETRY **TEMPORARY BY-PASS BERM WITH TEMPORARY BY-PASS PUMPING FOR PIPE INSTALLATION. TEMPORARY IMPACT TOTAL TEMPORARY STREAM IMPACT .••••••••••. .0.0000.4.0000. •••••••••••••• 0.0000.4.0000. !00000 ••••••• x x x x x x x x x x x x x x x x x 41 SF 15 LF ZONE 1 ROAD IMPACT ZONE 2 ROAD IMPACT STREAM IMPACT STREAM IMPACT NO LOSS (RIP RAP) TEMPORARY STREAM IMPACT SHEET 5 CEGRO[.P 301 GLENWOOD AVE. SUITE 220 RALEIGH,NC 27603 PHONE: 919-367-8790 FAX: 919-322-0032 20' 0 NORTH 20, SCALE: 1" = 20' 40' REVISIONS: (1) REVISED PER S&EC COMMENTS. 12/13/2021 (2) REVISED PER S&EC COMMENTS. 01/03/2022 COMET RALEIGH APARTMENTS IMPACT #2 ROAD CROSSING 2801 FORESTIVILLE RD RALEIGH, NC 305 300 295 290 285 283 PROPOSED GRADE 36" MIN COVER 8" WATE LINE SEGMENTAL BLOCK RETAINING WALL SEE PLAN VIEW FOR WALL LOCATION & DETAILS. STREAM BOTTOM ENDWALL INV IN =285.40 18" RCP 24" MIN 24" MIN CLEAR CLEAR DUAL 48" RCP -8" PVC GRAVITY SEWER (1) 48" RCP BURIED 12" TO ALLOW AQUATIC PASSAGE IMPACT ROADWAY CROSS SECTION ENDWALL INV OUT =284.90 RIPRAP UAL '18" RCP CLASS "3" RIPRAP PAD 38'L x 12'W x 24"D D50=10" DMAx=15" (MATCH EXISTING CHANNEL GEOMETRY) I 305 300 295 290 (1) 48" RCP BURIED 12" TO ALLOW AQUATIC PASSAGE Ln LO co N CO N CO N N ti ti CO N 0 LO CO 0 O O CO N 0 CO 0 ti co N CO CO 0 co N 'CHANNEL CROSS SECTION AT RETAINING WALL 10+00 11+00 285 283 12+00 SHEET 6 CE GROLP 301 GLENWOOD AVE. SUITE 220 RALEIGH,NC 27603 PHONE: 919-367-8790 FAX: 919-322-0032 30' 0 30' SCALE: 1" = 30' 60' REVISIONS: (1) REVISED PER S&EC COMMENTS. 12/13/2021 (2) REVISED PER S&EC COMMENTS. 01/03/2022 COMET RALEIGH APARTMENTS IMPACT #2 ROAD CROSSING PROFILE 2801 FORESTIVILLE RD RALEIGH, NC NM 7 • /7 / / / / EXISTING TOP / / / / / / /// / / OF BANK (TYP.) / / / / \ / / / / / /. / // / z_ _ _ ��� / / 7 // / /! / \ ,—'r 7 / 7 / i / 7 7 7 7 7 7 7 7 i 7 7 / / -- ZONE 2 ALLOWABLE UTILITY IMPACT 669 SF ZONE 1 ALLOWABLE UTILITY IMPACT 946 SF / - x fr./ 41:444V: , 114% , °,:tvi:. ASV" lt NA 4 / / / / /7- // // / / / / / / / / / / 0 / // / / / / / // r / / / // // I STREAM TEMPORARY IMPACT 31 LF, 504 SF ZONE 1 ALLOWABLE UTILITY IMPACT 953 SF 2 7 EXISTING TOP OF BANK (TYP.) i ZONE 2 ALLOWABLE UTILITY IMPACT 632 SF PROPOSED TREELINE / DISTURBED LIMIT LINE (TYP.) PROPERTY LINE (TYP.) IMPACT TOTAL ZONE 1 ALLOWABLE UTILITY IMPACT 1,898 SF ZONE 2 ALLOWABLE UTILITY IMPACT 1,301 SF *RIP RAP TO MATCH EXISTING CHANNEL GEOMETRY TEMPORARY IMPACT TOTAL TEMPORARY STREAM IMPACT 504 SF 31 LF 'Jo 0 0 U DDOo°0OC D000�000�nOC x x x x x x x X f x x x k x x x x x x x x x x x x x ,. ZONE 1 ALLOWABLE UTILITY IMPACT ZONE 2 ALLOWABLE UTILITY IMPACT TEMPORARY STREAM IMPACT SHEET 7 CE GROLP 301 GLENWOOD AVE. SUITE 220 RALEIGH,NC 27603 PHONE: 919-367-8790 FAX: 919-322-0032 30' 0 NORTH 30' SCALE: 1" = 30' 60' REVISIONS: (1) REVISED PER S&EC COMMENTS. 12/13/2021 (2) REVISED PER S&EC COMMENTS. 01/03/2022 COMET RALEIGH APARTMENTS IMPACT #3 UTILITY CROSSING 2801 FORESTIVILLE RD RALEIGH, NC 310 305 300 295 290 287 \ \ ( \ EXISTING GRADE \ \ / / N — \ \ / / dr \ \ \ / / \ \ / / \ \ / / \ \ / / / STREAM BOTTOM 36" MIN COVER 1 0DIP @0.61% A J coII O_ N c'(iOM to N J M p lI) 0M 0 Zc'.W < > 4 cNi W NN c'. J II II RII H D Zc'•WH < N I II c• J D gr•WZZ Gi_ >> rnzl.any zz O i Z 2c'W0 N(SI N V �2i cnQZ 0 6 r!) (7) 0) N d) I< O 0 Cf) r!) N I-- 4 0 0 Cf) V) LC) LI-) 4 0 0 Cf) V) M In c9 00 O Cf) 0) LO N,— CO H (3.-) 0 (-• I V) 0 M 0 0 Cf) V) 0) 0) N 4 c0 0 0 Ce) r!) N d- 6 6 0 0 (v) r!) (0 co In 0 C,) 10+00 11+00 12+00 13+00 310 305 300 295 290 287 SHEET 8 CE GROLP 301 GLENWOOD AVE. SUITE 220 RALEIGH,NC 27603 PHONE: 919-367-8790 FAX: 919-322-0032 30' 0 30' 60' SCALE: 1" = 30' REVISIONS: (1) REVISED PER S&EC COMMENTS. 12/13/2021 (2) REVISED PER S&EC COMMENTS. 01/03/2022 COMET RALEIGH APARTMENTS IMPACT #3 UTILITY CROSSING PROFILE 2801 FORESTIVILLE RD RALEIGH, NC 7 v PROPERTY LINE (TYP.) ZONE2 ALLO UTILITY IMPACT 601 SF CLASS "1" RIPRAP PAD 8'L x 6'W x 24"D D50=4" DMnx=6" ZONE 1 ALLOWABLE BUFFER IMPACT 713 SF STREAM D 7 7 / 7 L40-280 \. - - - __ ORDINARY EXISTING TOP HIGH WATER / OF BANK (TYP.) MARK (TYP.) / — --� PROPOSED TREELINE / DISTUR3ED LIMIT LINE (TYP.) f-------........ / / �� / A \ ,7 / /\\� A / 7� J // 7 IMPACT TOTAL ZONE 1 ALLOWABLE BUFFER IMPACT 713 SF ZONE 2 ALLOWABLE UTILITY IMPACT 601 SF ZONE 1 ALLOWABLE BUFFER IMPACT ZONE 2 ALLOWABLE UTILITY IMPACT SHEET 9 CEGRO[.P 301 GLENWOOD AVE. SUITE 220 RALEIGH,NC 27603 PHONE: 919-367-8790 FAX: 919-322-0032 20' 0 NORTH 20' SCALE: 1" = 20' 40' REVISIONS: (1) REVISED PER S&EC COMMENTS. 12/13/2021 (2) REVISED PER S&EC COMMENTS. 01/03/2022 COMET RALEIGH APARTMENTS IMPACT #4 UTILITY CROSSING 2801 FORESTIVILLE RD RALEIGH, NC PUMP -AROUND PRACTICE Silt Bag as shown in detail 3.25. pumps should discharge onto a stable velocity dissipator made of rip rap PLAN VIEW discharge hoses WORK AREA LENGTH NOT TO EXCEED THAT WHICH CAN BE COMPLETED IN ONE DAY SECTION A -A i�ous sheeting work area Ma AUv/��\'V/RAVI stream diversion pumps sump —hole or pool (12" to 18" deep w/ 2' diameter) base flow + 1 foot (2 foot minimum) cross section of sandbag dike PUMP —AROUND PRACTICE DESCRIPTION: The work should consist of installing a temporary pump around and supporting measures to divert flow around in —stream construction sites. IMPLEMENTATION SEQUENCE: Sediment control measures, pump —around practices, and associated channel and bank construction should be completed in the following sequence (refer to Detail 2/SE1): 1 Construction should not begin until all sediment and erosion control measures have been installed and approved by the engineer and the sediment control inspector. The contractor should stay within the limits of the disturbance as shown on the plans and minimize disturbance within the work area whenever possible. 2 Upon installation of all sediment control measures and approval by the sediment control inspector, the contractor should begin work at the upstream section and proceed downstream beginning with the establishment of stabilized construction entrances. In some cases, work may begin downstream if appropriate. The sequence of construction must be followed unless the contractor gets written approval for deviations from the engineer or local authority. Work should not be conducted in the channel during rain events. 3 Sandbag dikes should be situated at the upstream and downstream ends of the work area as shown on the plans, and stream flow should be pumped around the work area. The pump should discharge onto a stable velocity dissipater made of riprap. 4 Excavated topsoil and subsoil should be kept separate, placed on the upland side of the excavation, and replaced in their natural order. 5 All construction should take place during stream low flows. The length of construction time should be limited to a maximum of 2 days for each crossing. 6 Water from the work area should be pumped to a dewatering bag as shown in detail 3.25. The measure should be located such that the water drains back into the channel below the downstream sandbag dike. 7 Traversing a channel reach with equipment within the work area where no work is proposed should be avoided. If equipment has to traverse such a reach for access to another area, then timber mats or similar measures should be used to minimize disturbance to the channel. Temporary stream crossings should be used only when necessary and only where noted on the plans or specified. 8 All stream restoration measures should be installed as indicated by the plans and all banks graded in accordance with the grading plans and typical cross —sections. All grading must be stabilized at the end of each day with seed and mulch or seed and matting as specified on the plans. 9 After an area is completed and stabilized, the clean water dike should be removed. After the first sediment flush, a new clean water dike should be established upstream from the old sediment dike. Finally, upon establishment of a new sediment dike below the old one, the old sediment dike should be removed. 10 The contractor is responsible for providing access to and maintaining all erosion and sediment control devices until the sediment control inspector approves their removal. PUMP AROUND PRACTICE SHEET 10 CE GROUP 301 GLENWOOD AVE. SUITE 220 RALEIGH,NC 27603 PHONE: 919-367-8790 FAX: 919-322-0032 REVISIONS: (1) REVISED PER S&EC COMMENTS. 12/13/2021 (2) REVISED PER S&EC COMMENTS. 01/03/2022 COMET RALEIGH APARTMENTS DETAILS 2801 FORESTIVILLE RD RALEIGH, NC