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Home My WebLink About20220142 Ver 1_Impact Drawings_20220321PROPOSED PERMANENT WETLAND — IMPACT #WI (FIGURE 5.1) PROPOSED TEMPORARY WALL INSTALLATION WETLAND IMPACT #W2 THRU #W4 (FIGURE 5.1) EXISTING STREAM (TYP.) EXISTING CULVERT (TYP.) EXISTING SANITARY SEWER MAIN (TYP.) / // / FUTURE / DEVELOPMENT i /7//////// PROPOSED SANITARY SEWER MAIN (TYP.) PROPOSED PERMANENT ROADWAY STREAM IMPACT #SI PROPOSED TEMPORARY CULVERT INSTALLATION STREAM IMPACT#S2 (FIGURE 5.1) PROPOSED PERMANENT ROADWAY STREAM IMPACT #S3 (FIGURE 5.2) PROPOSED TEMPORARY CULVERT INSTALLATION STREAM IMPACT #S4 (FIGURE 5.2) )10 _. ti i II 1 � J ,,I',*o. A EXISTING WETLAND (TYP.) ssi PROJECT BOUNDARY FUTURE DEVELOPMENT IMPACT SUMMARY TABLE TEMPORARY WETLAND IMPACT 0.023± AC PERMANENT WETLAND IMPACT 0.065± AC TEMPORARY STREAM IMPACT 40 LF (0.007± AC) PERMANENT STREAM IMPACT 87 LF (0.010± AC) WGLA Engineering EXISTING 10' CONTOUR (TYP.) PROPOSED 10' CONTOUR (TYP.) Preliminary WGLA ENGINEERING, PLLC 724 5th AVENUE HENDERSONVILLE, NC 28739 (828) 687-7177 WGLA.COM NC LICENSE P-1342 Busbee Limestone Township Buncombe County North Carolina Stream Impacts Figure 5.0 Job #: 21160 Date: 1/24/22 Scale: 1" = 500' EXISTING WETLAND (TYP.) EXISTING STREAM (TYP.) c5 / PROPOSED PERMANENT WETLAND IMPACT #W I (0.065± AC.) PROPOSED TEMPORARY WALL INSTALLATION WETLAND IMPACT #W2 10' BELOW WALL (0.007± AC.) PROPOSED TEMPORARY CULVERT INSTALLATION STREAM IMPACT #S2 10' ABOVE AND BELOW CULVERT (20± LF) (0.003± AC.) PROPOSED TEMPORARY WALL INSTALLATION WETLAND IMPACT #W3 10' BELOW WALL (0.001 ± AC.) PROPOSED RETAINING WALL (TYP.) PROPOSED WATER MAIN (TYP.) ...p+p,.pp,ararararararlalap,yrpp0a:�` —� ,rr11 'r,",'r1,r aaaaaaaaaaa „rrr Irrr1„IIIIIrlrrrrrrr , 11 �... I,V a,N ,rrrr„ aaaauu,a,aaaaauaaa ♦ a9rJ II N r1,1\��'�" Ir,Ir ,rr,,,r,rr,,,,,r,rraaalaaaaM '.:::.i,fa;��::•��C�aaaaajl'C`',',.,��,a,1p�,aa'MMSS /f a'�Jl� ,4,.aa M _MN� ��•��/Y` tkn, M II,r Oa, COOOJa::::::: wuauli%%i% w 9aa aaa Naa ..r.�.dararararararar a1a100a%%%%:i • c%:7r y�%�3%%%%%%9 401111111111.....71::ig.ig.10.111k: M Ssi PROPOSED PERMANENT CULVERT STREAM IMPACT #S I (71 ± LF) (0.009± AC.) LEGEND SS M M M SS M w— w PROPOSED SANITARY SEWER MAIN (TYP.) • PROPOSED ACCESS ROAD AND UTILITY CORRIDOR TO PHASE IA PROPOSED TEMPORARY WALL INSTALLATION WETLAND IMPACT #W4 10' BELOW WALL (0.015± AC.) PROPOSED ACCESS ROAD AND UTILITY CORRIDOR TO PHASE I TEMPORARY WETLAND IMPACT PERMANENT WETLAND IMPACT TEMPORARY STREAM IMPACT PERMANENT STREAM IMPACT WGLA Engineering Preliminary WGLA ENGINEERING, PLLC 724 5th AVENUE HENDERSONVILLE, NC 28739 (828) 687-7177 WGLA.COM NC LICENSE P-1342 Busbee Limestone Township Buncombe County North Carolina Stream Impacts Figure 5.1 Job #: 21160 Date: 1/24/22 Scale: 1" = 60' PROPOSED RETAINNG WALL (TYP.) \\\„„lio,„ /7 LEGEND PROPOSED TEMPORARY CULVERT INSTALLATION STREAM IMPACT #S4 10' ABOVE AND BELOW CULVERT (20± LF) (0.004± AC.) PROPOSED WATER MAIN (TYP.) EXISTING CULVERT TO BE REPLACED EX1STiNG 21 LF CULVERT TO BE REPLACED WITH L NEW 37 LF CULVERT. NEW PERMANENT STREAM IMPACT #S3 (I 6± LF) (0.001 ± AC.) PROPOSED SANITARY SEWER MAIN (TYP.) TEMPORARY WETLAND IMPACT PERMANENT WETLAND IMPACT TEMPORARY STREAM IMPACT PERMANENT STREAM IMPACT WGLA Engineering Preliminary WGLA ENGINEERING, PLLC 724 5th AVENUE HENDERSONVILLE, NC 28739 (828) 687-7177 WGLA.COM NC LICENSE P-1342 Busbee Limestone Township Buncombe County North Carolina Stream Impacts Figure 5.2 Job #: 21160 Date: 1/24/22 Scale: 1" = 60' PROPOSED ASPHALT ROADWAY WITH CURB AND GUTTER PROPOSED RETAINING WALL IMii 11111■ � iiE PROPOSED HDPE BURIED 12" MINIMUM BELOW STREAM BED I I I-1 I I_I -I I I -I I I -I I I -I PERMANENT STREAM CROSSING CROSS-SECTION N.T.S. PROPOSED RETAINING WALL PROPOSED 22' ASPHALT ROADWAY WITH CURB EACH SIDE STREAM BED IMPERMEABLE DIKE DURING CONSTRUCTION WGLA Engineering IMPERMEABLE DIKE PROPOSED XX LF OF XX" HDPE DURING CONSTRUCTION CULVERT BURIED 12" MINIMUM BELOW STREAM BED —MATCH EXISTING GRADIENT PERMANENT STREAM CROSSING PROFILE N.T.S. Preliminary WGLA ENGINEERING, PLLC 724 5th AVENUE HENDERSONVILLE, NC 28739 (828) 687-7177 WGLA.COM NC LICENSE P-1342 Busbee Limestone Township Buncombe County North Carolina Stream Impacts Figure 5.3 Job #: 21160 Date: 1/24/22 Scale: N/A IMPERVIOUS DIKE (SEE INSET "B") INTAKE PIPING PUMP I O'X5' STABILIZED OUTLET USING CLASS B RIP RAP & NCDOT TYPE 2 FILTER FABRIC DISCHARGE PIPING ACTIVE WORK AREA OF CULVERT INSTALLATION OR UTILITY CROSSING SAND BAG (24"X 12"X6") II OR STONE IMPERVIOUS SHEETING 1i llli llli llliillliillliillliillliillliillliillliillliillliillliillliillliillliillliillliillliillliillliillliillliillliillliillliillliillliillliillliilEillliillliillliiIE _� a=� a=� a=� � �_� � �_� � �_� � �_� � �_� � �_� � �_� � �_� � �_� � �_� � �_� � �_� � �_� � �_� � �_� � �_� � �_� � �_� � �_� � �_� � �_� � �_� � �_� � �_� � �_� � �_� � �_� � �_� � �_� � �_� � �_� � �_ INSET "B" IMPERVIOUS DIKE STABILIZED OUTLET USING CLASS B RIPRAP TRENCHED INTO EXISTING GROUND A MINIMUM OF 6". SIZE AND LOCATION TO BE DETERMINED IN THE FIELD BY THE ENGINEER =IIFIIF I I Fl IFIF. IFI IEI IEI IEI IEI IEI IEI IEI IEI IEI IEI I� =I I FI I FI I FI I FI I FI I FI I FI I FI I FI I FI . SCALE: NTS 10' MIN FLEXIBLE DISCHARGE HOSE FROM PUMP AROUND PUMP HELD IN PLACE WITH SAND BAGS AS NEEDED FFI IFI IFI IFI IFI IFI IF FIRIRIRIRIRIRII IFIFIFIFIFIFIF EIIEIIEIIEIIEIIEIIEIIEIIEIIEIIEIIVFV FIR IR IR IR IR IR IF-1II FIFIIFIFIFIFIFIFIFIFIFIFIFIFIFIFIIFI IF FILTER FABRIC PUMP AROUND SYSTEM SCALE: NTS GENERAL PUMPING SEQUENCE: I. USE PUMP TO PUMP FLOW AROUND DURING CONSTRUCTION. 2. SET UP ROCK SILT CHECK DAM AT DOWNSTREAM END OF THE CHANNEL AT THE END OF EACH DAY (SANDBAGS ARE AN ACCEPTABLE ALTERNATIVE.) 3. BELOW THE CHECK DAM, WATER WILL FLOW INTO THE EXISTING PIPE. MAKE SURE NO LOOSE SOIL IS PRESENT AROUND THE PIPE INLET. USE SOD MATS, COIR MATTING OR STONE TO STABILIZE ANY BARE GROUND. 4. AT THE BEGINNING OF THE NEXT DAY, RESHAPE AS NECESSARY AND USE THE CHECK DAM AS THE IMPERVIOUS DIKE FOR THE PUMP AROUND OPERATION - INSTALL IMPERVIOUS SHEETING AS SHOWN WGLA Engineering IMPERVIOUS DIKE (SEE INSET "B") NOTES: I. IF PUMPING CLEAN WATER, NO DEWATERING BAG IS REQUIRED. 2. STREAM HAS SMALL BASE FLOW. A SUITABLE OUTLET LOCATION IN THE WOODS MAY BE IDENTIFIED AT THE DISCHARGE LOCATION SO THAT NATURAL FILTRATION CAPACITY OF FOREST FLOOR AND TO AVOID UNNECESSARY DISTURBANCE FOR STONE DEWATERING PAD OR STONE OUTLET. Preliminary WGLA ENGINEERING, PLLC 724 5th AVENUE HENDERSONVILLE, NC 28739 (828) 687-7177 WGLA.COM NC LICENSE P-1342 Busbee Limestone Township Buncombe County North Carolina Typical Stream Bank Stabilization Figure 5.4 Job #: 21160 Date: 1/24/22 Scale: n.t.s.