The URL can be used to link to this page

Home My WebLink AboutSW1221002_Plansheet CL401.P2 - Grading/Drainage Plan_20230223 CONSTRUCTION 06 ENTRANCE CL904.P2 OWNER / DEVELOPER _ pa Greater Asheville Regional Airport Authority , =iZw pew 61 Terminal Drive Suite 1 Gresham Smith p � Fletcher, North Carolina 28732 Owner Contact: Michael Reisman GS-NC P.C. .y Email: mreisman@flavlcom An Affiliate of Gresham Smith No -2150 - � / / / � / / / � /� / / / / / / / / \ X x x X�X- \ \\ r • • pi•Y •� r - - / / / / - - - _= ,�j/ / j / / , / / _ ; , /j/ , / \\ •. \ J I 201 South College St. "�, v> v Suite 1950 v v v \v v I ffaG _ 2r�'6. \ \ \ C \\ I / / \ / 1 \ \. \\ =ry�213� �'3s / \ (n \ �\ I Charlotte, NC 28244 fhg / \ L \ � v v �2� v V I 704.944.7970 \ �72 \ \ \ \ \ ahk 9\ ('� °$d I \ \ NOTES: 10 •• - / \Jo` PROJECT IS TO BE COMPLETED IN -•° �� W-�- V A\ \ A\ \ Q, \ \ V A \ MULTIPLE PHASES. PROJECT IS TO \ \ ALWAYS MAINTAIN VEHICLE ACCESS r \�►\�� Z I V A\ �� A - I g I TO PUBLIC SAFETY BUILDING AND TEMPORARY TREE 07 2�Q \ \ SIDEWALK FROM PUBLIC SAFETY �? V CATCH'BASIN PROTECTION 01 V I \ PROTECTION CL903.P2 Q \ (TYP.) CL904.P2 \ , V � I � I � � BUILDING TO TERMINAL. \VA\\ \ \\\ \ a \ •• I �� COORDINATE DRAWINGS. CONTRACTOR �jeII I \ \•\ \ ="& r' SILT FENCE 04 V A V v { A 1 & SEE AIRSIDE CIVIL PLANS FOR ALL E&SC MEASURES ON WEST SIDE OF Gresham AOA BOUNDARY LINES. • � Smith CONTRACTOR TO IDENTIFY v ��v CONC�ETE WASHOUT 03 ' - I \ �� • p / LOCATION AND ACCESS POINTS OF / �0 I I _- �-r \ �, I \� �A L / ANY TEMPORARY STOCKPILE ON CL904.P2 \ I T SILT SOCK TYP.= 02 SITE AND SHALL CONSTRUCT p - g I,/ STOCKPILE IN COMPLIANCE WITH / CL904.P2 g / g - / DETAIL 12/CL902.P2. _ � � v 6 NPDES PERMIT Via= $= • �_ 2145_ h °l •°\ \ p �; m` ,DOCUMENTATION 4..�•• _ ®•. •��• _ z,a \ �� _�� 214 'LOCATION- - � •• � � � � � � � � � � � 2145 - - - �� - ��A -� shevHle I �\\ a p 2�45 So �2145 1 A wg � wg �` - - � 2 �1- � 5' � ✓.� 140 Vj 7 6� ♦ ( l q �\ �o � _� - _ s --- sw - ---- _--- -- ® / REGIONAL AIRPORT Sb9 = N 2145 FS ® ® ® ® /® 2146® - - - ® �_®-- - �p �- \N ' I / 0 1 \ \ / 2 °\ ®• 2 0 _ o = °�� Asheville Regional P �, _ !,, ,',- o ° Airport j g \ y oPE M �• - a N o = l ryh� 213 � ° I m �y II �' 3i x N / Imo' �� TEMPORARY POROUS 07 Terminal omao�w�. -�� rn $" \ g w ° . ,mob I N 21 \ BAFFLE (TYP.) CL905.P2 moN p z0 \ ggp _ c rY, o og gg g �_ Iwo ; o �� gm 2s a Modernization o gag\ -�� o�zog�l m / I 2 o _ \ /// �� - L. 0 0 mg �m / / N N I JI nil 212p� 61 Terminal Drive Suite 1 0 Fletcher, North Carolina 28732 POND EMERGENCY 04 ` o I o oo °o / / I l ep 8 ° �m N �I � � ° ° ° o � � I � m � \ SPILLWAY CL905.P2 d / 1 ��,a ` ° 8o GAs °GAS o / / N d I N �$ \\ I 02/16/2022 m g� O 2150 F 2 10' BERM ELEV= 2124.00 GS Project#: 43483.02 / - 1 ARY. SEE AIRSIDE CIVIL PLANS X `�'� 214 sd� �-�Sd° = AFOOR CONTINUATION ON OF E&SC MEASURES. �- - - ` - - p- - m 2� - �S / 2 6 INCH TEMPORARY 11 o Qj 6- - -� o o-o \ / g _ - _2 3 a`` -3 212oi \\ SEDIMENT BASIN CL902.P2 ��IIII , / o o O i II / o Ir 2138 1 7 2 \ \ \\ �I2 I \ o° �p o 0 0 o r- o 0 0 0o O L__�_� oL� o °Do \ \ \ 7�j6 SKIMMER WITH 1.5 INCH �� `, UANO�/�j, IIN x I x o0\ og N / °oo oo° ° o ` �� \` 2135 �� 2� ORIFICE \��C•`E S'S •`� AOA BOUNDARY. SEE AIRSIDE CIVIL PLANS / (/' aom om > �_"_ /-----° I I " SEDIMENT BASIN 1 FOR CONTINUATION OF E&SC MEASURES. ,,; g \ Jd MAXIMUM DRAINAGE AREA = 5.20 ACRES __ _ SEAL _ \ ,/ ° - - s = = REQUIRED VOLUME = 9,360 CF _ _ _ - - ✓/ 1 < 05314910/24/2z \ \ J �\ !��i �� L s - X PROVIDED VOLUME = 37,381 CF &p 1 ?�,FN �� .'��\ _ - SITE OUTFALL c NE r-= o - REQUIRED SURFACE AREA = 7,924 SF / I ° ° ° ° o " __>$ RECEIVING WATERS: �qti N D.•Hv�`� J 59 f \\ /\/ ^ / o = PROVIDED SURFACE AREA= 10,981 SF / H_ I // ��/Ilnlnll��o \\ o g / / / l I 2-YR WSE: 2121.43 / \ UNNAMED TRIBUTARY CREEK OF FRENCH 10-YR WSE: 2122.47 / I BROAD RIVER FRENCH BROAD RIVER, NCDEQ DIVISION OF WATER RESOURCES CLASSIFICATION Q) N �6 I� // �' - J / _ _ j� �/ 05 TEMPORARY SEDIMENT / 1 1 _ _ / / I CL904.P2 BASIN OUTLET NATHAN 053149 S, PE N , \� I. � _ _ , , , / / / Ill N / /, / /, // , - I / / STRUCTURE // 1 i NC 053149 p III PROJECT LIMITS OF DISTURBANCE - 13.0 AC a� / / 1 I\- I I I REVISION EXISTING STORM STRUCTURE TO BE TEMPORARILY / USED AS SEDIMENT BASIN PRINCIPAL SPILLWAY / 1 \ I I \ NO. DATE DESCRIPTION /" RAISE RIM ELEV TO 2122,40 AND INSTALL TRASH RACK E&SC GENERAL NOTES: // / / 1 -\ 1 02/16/22 ISSUE FOR CONSTRUCTION Q) ^��' I 1.5 INCH ORIFICE ELEV= 2117.00 j 1. SEDIMENT SHALL BE REMOVED FROM SILT FENCE WHEN REACHES 1 THE HEIGHT OF THE FENCE; // ry/ �I� i \ I 2 03/09/22 ADDENDUM 02 o LEGEND SEDIMENT SHALL BE REMOVED FROM ALL OTHER E&SC MEASURES AND CONTROL AS �� ry�� /�' / I ^�^ // 1 I II \ I 3 03/28/22 ADDENDUM 03 - - PROPERTY LINE RECOMMENDED BY THE NORTH CAROLINA EROSION AND SEDIMENT CONTROL PLANNING AND �� / / / // v " // // / 1 - i i 4 04/07/22 NCDEQ COMMENTS DESIGN MANUAL, AND MUST BE REMOVED WHEN DESIGN CAPACITY HAS BEEN REDUCED BY 50%. 2. E&SC MEASURES SHALL BE IMPLEMENTED BEFORE EARTH-MOVING BEGINS. / / / 1 I 5 05/02/22 AGENCY COMMENTS v \ \ BUILDING LINE / I / / 3. AREAS WHERE CONSTRUCTION HAS TEMPORARILY/PERMANENTLY CEASED SHALL BE STABILIZED 6 10/24/22 ASI 006 WITHIN 14 DAYS (7 DAYS FOR> 33% SLOPES). OL 21 - -2145- - EXISTING MAJOR CONTOUR MD 4. INSPECTIONS OF OUTFALLS/E&SC MEASURES SHALL BE CONDUCTED AT LEAST TWICE WEEKLY // / / / �_ I- -0 AND AT LEAST 72 HOURS APART. / / / I / - / o - - -2146- - - EXISTING MINOR CONTOUR 5. VEGETATION, E&SCS, AND OTHER PROTECTIVE MEASURES SHALL BE REPAIRED, REPLACED, OR / / / V X U MODIFIED WITHIN 7 DAYS OF BEING NOTIFIED OF AN ISSUE. // / / / I / / / Vw' fl 1 NI 2145 MAJOR CONTOUR 6. CONSTRUCTION SHALL BE PHASED FOR ACTIVITIES THAT WILL DISTURB >50 ACRES. / / / p 7. E&SCS SHALL BE DESIGNED TO CONTROL THE RAINFALL AND RUNOFF FROM A 10-YEAR, 24-HOUR RETURN INTERVAL STORM. � 2146 MINOR CONTOUR d' 8. TEMPORARY SEDIMENT BASIN SHALL BE PROVIDED FOR ON-SITE OUTFALLS THAT RECEIVE DRAINAGE FROM >5 ACRES. - - - - - - - STORM PIPE 9. SEDIMENT BASINS AND TRAPS SHALL BE DEWATERED AND ALL SEDIMENT TO BE REMOVED -Q) PRIOR TO REGRADING FOR PERMANENT PONDS. TEMPORARY SEDIMENT BASIN STRUCTURES AND LIMITS OF DISTURANCE PIPES ARE NOT TO BE REMOVED OR CONVERTED TO THE PERMANENT STRUCTURES AND PIPES CL UNTIL AFTER THE DRAINAGE AREA HAS REACHED FINAL STABILIZATION. STRUCTURES AND PIPES SF SILT FENCE SHALL BE CLEANED OF SEDIMENT PRIOR TO CONVERSION TO PERMANENT STRUCTURES AND �' / / o PIPES. 2134 Q FS FILTER SOCK 10. IF BORROW OR WASTE MATERIAL IS REQUIRED OR GENERATED DURING GRADING OPERATIONS, / - I ,A33 U AN APPROVED EROSION AND SEDIMENT CONTROL PERMIT SHALL BE SECURED FOR THE BORROW TP TREE PROTECTION FENCE OR WASTE MATERIAL SITE PRIOR TO INITIATION OF ANY LAND DISTURBING ACTIVITY. - 11. ALL CATCH BASINS TO HAVE WASHED STONE IN SAND BAGS AS EXTERNAL PROTECTION. \ \ \ 0 12. CONTRACTOR TO COORDINATE ALL UTILITY CROSSINGS TO ENSURE NO CONFLICTS WITH I \ \\ \ \ RIP-RAP EXISTING UTILITIES. I \\ o_ 13. CONTRACTOR TO COORDINATE TEMPORARY ACCESS ROADS WITH ENGINEER PRIOR TO N TURF REINFORCED MATTING INSTALLATION AND CONSTRUCT TEMPORARY ACCESS IN ACCORDANCE WITH NCDEQ INITIAL E&SC PLAN 00 REGULATIONS. FINAL STABILIZATION SEDIMENT BASIN MAINTENANCE NOTES: 6 1. INSPECT TEMPORARY SEDIMENT BASINS AT LEAST WEEKLY AND AFTER EACH o SIGNIFICANT (2 INCH OR GREATER) RAINFALL EVENT AND REPAIR IMMEDIATELY. ALL DISTURBED AREAS TO BE STABILIZED WITHIN 14 DAYS AFTER CONSTRUCTION ACTIVITY HAS INLET PROTECTION 2. REMOVE SEDIMENT AND RESTORE THE BASIN TO ITS ORIGINAL DIMENSIONS WHEN IT I TEMPORARILY OR PERMANENTLY CEASED. O 0 ACCUMULATES TO ONE-HALF THE DESIGN DEPTH. STEEP SLOPES (33% OR GREATER) SHALL BE TEMPORARILY STABILIZED NO LATER THAN 7 DAYS C L401 ■ P 2 3. PLACE REMOVED SEDIMENT IN AN AREA WITH SEDIMENT CONTROLS. AFTER CONSTRUCTION ACTIVITY HAS TEMPORARILY OR PERMANENTLY CEASED. 4. CHECK THE EMBANKMENT, SPILLWAYS, AND OUTLET FOR EROSION DAMAGE, AND AREAS OF PERMANENT STABILIZATION TO BE SEEDED WITH KY-31 FESCUE AT 5 LBS PER 1,000 SF INSPECT THE EMBANKMENT FOR PIPING AND SETTLEMENT. STRAW MULCH AT 1.5 BALES PER 1,000 SF. 5. MAKE ALL NECESSARY REPAIRS IMMEDIATELY. 6. REMOVE ALL TRASH AND OTHER DEBRIS FROM THE RISER AND POOL AREA. EROSION CONTROL MATTING SHALL BE USED ON ALL SLOPES 3:1 OR STEEPER. 60' 0 60' 120' A� E&�SC PLAN 7. SEDIMENT BASIN EMBANKMENTS SHALL BE PROVIDED WITH ADEQUATEGROUNDCOVER IMMEDIATELY UPON CONSTRUCTION IN THE INITIAL PHASE OFGRAPHIC SCALE = CONSTRUCTION AND CONVERSION TO PERMANENT STORMWATER DETENTION POND IN THE FINAL PHASE OF CONSTRUCTION. CONSTRUCTION DOCUMENTS I