Loading...
HomeMy WebLinkAboutSDP200100079 Plan - Approved 2001-09-24OWNER / DEVELOPER: Worrell Land & Cattle Company, L.C. Post Office Box 538fl- Cbarlottesville, Virginia 22905 Phone No.: 804-9,77-6803 Fax No.: 804-977-6,,578 Attn.: .r. Andrew J. Dracopoli, Y.P. Project Director LEGEND PROPOSED ASPHALT PAVEMENT EX/ST/NG CULVERT OR STORM SEWER PIPE pr 0 DRAINAGE STRUCTURE NUMBER O ��� INDICATES MINIMUM FINISHED BUILDING ELEVATION THAT MIN. F. F 177.00 CAN BE USED ON A SPECIFIC LOT IN ORDER TO GET BUILDING U. (S) OR (D ABOVE THE 19' STORM ELEV. OR TO OBTAIN GRAV17Y SAN. SEWER (S) DENOTES SAN. SEWER U. (D) DENOTES DRAINAGE CA.— INDICATES LOTS WHICH MUST HAVE DRAINAGE IMPROVEMEIV75 INSTALLED PRIOR TO BUILDING PERMITS BEING ISSUED FOR THAT LOT. --► REGULAR SEEDED EARTH DITCH WITH DIRECTION OF FLO`Y CROSS HATCHING OF EITHER OF THESE INDICATES THAT PAVED DITCH LINING MAY BE NECESSARY IF SUITABLE VEGETA77ON CANNOT BE ESTABLISHED IN DITCH LINE. — , EC -2 LINED DITCH WITH SEEDING t--- PAVED LINED DITCH 18' INDICATES DEPTH OF EC -2 OR PAVED DITCH LINING' INDICATES DRIVEWAY PIPE SIZE IF GREATER THAN 15� O—t�-- SANITARY SEWER LINE WATER LINE 174`/ PROPOSED FINISHED GRADE CONTOUR ELEVATION E/P DENOTES EDGE OF PAVEMENT TIC DENOTES TOP OF CURB FIC DENOTES FACE OF CURB (MEASURED TO BACK OF ANY ROLL FACE CURB) B/C DENOTES BACK OF CURB QD DENOTES FILL AREA (NO FINISHED CONTOUR SHOWN) —ts —® DENOTES HOW LOT SHOULD BE GRADED FOR SURFACE DRAINAGE II4:�alu/i.'�4�1 PAVEMENT PROPERTY LINE SANITARY SEWER WATER LINE POWER LINE TELEPHONE LINE U DENOTES UNDERGROUND OH DENOTES OVERHEAD GAS LINE CUL VERT OR STORM SEWER PIPE FIRE HYDRANT BENCH MARK LOCATION EXISTING CONTOUR ELEVATION CLOUDING OF TEXT INDICATES REVISION TO PLANS lT/CELLO r VICINITY MAP Scale: I" _ 02000' NOTES: 1. ALL STORM AND SM! SEWER PIPE LENGTHS ARE MEASURED FROM CENTER OF DRAINAGE STRUCTURES (D./. OR M.H.) 2. CONTRACTOR /S TO MAKE HIS OWN TAKE -OFF ON THESE PLANS AS ANY OUAN77T/ES SHOWN ARE APPROXIMATE ONLY TO SHOW SCOPE OF WORK. J. CQ1VTR4CT0R SHALL BE RESPONSIBLE FOR COMPLE770N AND RIVAL ACCEPTANCE OF ALL CONSTRUCT/ON AND UI1L/7Y ONES. ENGIATEERd'. Jordan Consulting Engineers, 2540 Professional Road Ricbmond-, Virginia 23235 Phone No. :272-7009 Fax No. :272- 7088 E -Mail : •IORCEPAOL. COM INDEX SHEET NO. TITLE 2 OF 7 GENERAL NOTES AND DETAILS 3 OF 7 OVERALL LAYOUT PLAN 4 OF 7 LAYOUT AND UTILITY PLAN 5 OF 7 SEWER AND WATER DETAILS 6 OF 7 GRADING AND DRAINAGE PLAN 7 OF 7 B.M.P./W. P. O. COMPLIANCE PLAN P. Co LU C ku �oA r4'� 01 off z M.M. MILLS III a Reg. No. 19,580 PLANNING DEPARTMENT �z �/-�-� 91,2SIo I ENGINEERING DEPARTMENT � AL FIRE OFFICIAL Cin, ORIGINAL: 7/9/01 A.C.S.A.S,-,'s REVISED: 8/29/01 9/1%1 V.D.O. T. /V/,+ 9/18/01 BLDG. OFFICIAL S G felktkE✓ BLDG. CODE & ZONING SERVICES Snead (9:Qij �ol LU C ku 01 off z 0 GENERAL /VOTES 1. EX/STING UT/L/TIES THE LOCATION OF EX/STING SEWER, WATER, POWER, GAS, TELEPHONE, AND OTHER UT/LIT/ES AND STRUCTURES WHICH ARE LOCATED ACROSS, UNDERNEATH, ALONG AND WITHIN THE LIMITS OF THE PROPOSED WORK ARE NOT NECESSARILY SHOWN ON THE PLANS, AND WHERE SHOWN ARE ONLY APPROXIMATELY CORRECT. PR/OR TO CONSTRUCTION, THE CONTRACTOR SHALL NOTIFY THE UNDERGROUND PROTECTION CENTER ("M/SS UTILITY-) AT 1-800-552-7001 AND, AT HIS OWN COST, VERIFY THE LOCATIONS AND ELEVATIONS OF ALL EXISTING UTILITIES WITHIN THE LIMITS OF CONSTRUCTION. HE SHALL NOT/FY THE ENGINEER IMMEDIATELY IF THERE APPEARS TO B£ A CONSTRUCTION CONFLICT OR UPON DISCOVERY OF ANY UTILITY NOT SHOWN ON THE PLAN. THE CONTRACTOR SHALL BE LIABLE FOR ALL DAMAGE DONE TO ANY STRUCTURES OR PROPERTY THROUGH HIS CARELESSNESS OR NEGLIGENCE. ANY GRADE STAKES, HUBS, ETC. DESTROYED WILL SE REPLACED AT THE CONTRACTORS EXPENSE THE CONTRACTOR SHALL NOTIFY THE APPLICABLE GOVERNMENTAL PUBLIC WORKS AND PUBLIC UTILITY DEPARTMENT AT LEAST 24 HOURS PRIOR TO START OF WORK ON THE PROJECT. 2. MATERIALS AND WORKMANSHIP ALL MATERIALS AND WORKMANSHIP SHALL BE DONE /N ACCORDANCE WITH THE LATEST EDITIONS OF- (A) F(A) VIRGINIA DEPARTMENT OF TRANSPORTATION ROAD DESIGN STANDARDS" AND "ROAD BRIDGE SPECIFICATIONS' (B) APPLICABLE ALBEMARLE COUNTY ORDINANCES AND REGULATIONS. (C) THE LATEST RULES AND REGULATIONS GOVERNING CONSTRUCTION DEMOLITION AND EXCAVATION AS ADOPTED BY THE SAFETY CODES COMMISSION OF THE COMMONWEALTH OF VIRGINIA AND OOSHA. 3- DEV/AT/ON FROM PLANS NO DEVIATION FROM THESE PLANS WILL BE ALLOWED WITHOUT PR/OR WRITTEN APPROVAL OF THE OWNER, ENGINEER AND AFFECTED GOVERNMENTAL AGENCIES. 4. CLEARING AND GRUBB/NG A. ALL GROWTH OF TREES, OTHER VEGETA77ON AND OBJECTIONABLE DEBRIS SHALL BE CLEARED AND GRUBBED FROM THE PROPOSED PAVED AND BUILDING AREAS AS WELL AS AREAS /ND/C47ED TO BE GRADED ON THE PLANS , B. ALL CLEAR/NG AND GRUBBING WITHIN THE UTILITY EASEMENTS AND SPECIAL FILL AREAS SHALL BE TO THE LENGTH AND WIDTH NECESSARY TO CONSTRUCT THE IMPROVEMENTS SHOWN ON THE PLANS. C. ALL TREES, BRANCHES, VEGETA77ON AND DEBRIS SHALL BE DISPOSED OF /N A LEGAL MANNER ACCEPTABLE TO THE OWNER AND ENGINEER. BURNING PERMITS WILL BE OBTAINED BY THE CONTRACTOR AT HIS EXPENSE. D. ALL 7REES AND VEGETATION WHICH OBSTRUCT SIGHT DISTANCES AT ROAD INTERSECTIONS SHALL BE REMOVED SO AS TO OBTAIN THE MAXIMUM SIGHT DISTANCE AT EACH INTERSECT/ON. 5. TOPSOIL STRIPPING CONTRACTOR SHALL REMOVE TOPSOIL TO ITS ENTIRE DEPTH FROM ALL AREAS TO BE GRADED AND OR FILLED. HE SHALL STOCKPILE OR REMOVE THE TOPSOIL FROM THE SITE AT OWNERS DIREC77ON. 5. GRADING A. ROADWAYS, EASEMENTS, AND SPEC/AL F/LL AREAS TO BE GRADED AND COMPAC7FD TO THE FIN/SHED SUBGRADE OR GRADES AS SHOWN ON THE PLANS. CONM40TOR OR OWNER SHALL HAVE REPRESENTA77VE SUBGRADE CBR TEST RUN AND SHALL REPORT TO THE OWNER, ENG/NEER, AND ANY AFFECTED GOVERNMENTAL AGENCIES ANY TEST WH/CH SHOW A CBR OF LESS THAN 10. IN SUCH CASE ROAD PAVEMENT DESIGN MAY HAVE TO BE RE- DESIGNED TO MEET WITH THE AC7UAL SOIL CONDITIONS ENCOUNTERED B. /F UNSUITABLE MATERIAL IS ENCOUNTERED WITHIN THE ROADWAY, PARKING AREA OR ANY SPECIAL FILL AREA, IT SHALL BE REMOVED FROM THE ENTIRE PROPOSED PAVED AREA OR FILL AREA AND REPLACED WITH SELECT BACKFILL WHICH /S SU/TABLE FOR ROADWAY (OR BU/LD/NG SITE) CONSTRUCT/ON AS PER 'VDOT' REQUIREMENTS AND ANY SPECIAL REQUIREMENTS OF THE COUNTY OWNER, ENGINEER, AND ANY AFFECTED GOVERNMENTAL AGENCIES. C. FILL AND BACKFILL MATERIAL SHALL BE COMPACTED TO 95Z STD. PROCTOR DENSITY AT OPTIMUM MOISTURE t-2% UNLESS SPECIFIED OTHERWISE ON THE PLAN. D. ALL GRADING OPERATIONS SHALL BE DONE /N SUCH A MANNER SO AS TO PROVIDE POSITIVE DRAINAGE AT ALL TIMES E- AT ALL ROAD INTERSE077ONS /N A CUT SECTION, THE BACK SLOPES AND VEGETATION SHALL BE CUT BACK WITH AT LEAST 3.•1 BACK SLOPES SO AS TO PROVIDE THE BEST POSSIBLE SIGHT DISTANCE F. STANDARD SPRING BOXES (SB -1) AND UNDERDRA/N SYSTEM (UD -1 U0-2) WILL BE INSTALLED AT LOCATIONS SHOWN ON THE PLANS AND WHEREVER FIELD CONDITIONS WARRANT. 7. DRAINAGE STRUC7URES AND MINOR EXCAVAT/ON A. ALL PIPE CULVERTS AND STORM SEWER SYSTEMS SHALL HAVE A MIN/MUM COVER OF 1 FOOT AND BE MADE OF THE MATERIAL SPECIFIED ON THE PLANS. IF THIS PROJECT /S LOCATED /N HENR/CO COUNTY, ALL STORM SEWER SHALL HAVE A MIN/MUM OF 4" INCHES AGGREGATE BEDDING MATERIAL. S. BACKF/LL FOR ALL UTIL177ES WITH/A( PROPOSED STREETS SHALL BE PLACED GENERALLY /N ACCORDANCE WITH ALBEMARLE COUNTY UTILITY SPECIFICATIONS AND THE FOLLOW/NG CR17FR/A: 1) NO TRENCH SHALL BE BACKFILLED UNTIL AUTHOR/ZED BY THE INSPECTOR OR OWNER OR HIS AUTHORIZED REPRESENTATIVE. MATER/ALS USED FOR BACKFILL FROM THE TRENCH 807TOM TO 12 INCHES ABOVE THE PIPE SHALL 8E SELECT MATERIAL, FREE FROM FROST, LARGE CLODS, STONES, AND DEBRIS /T SHALL BE THOROUGHLY AND CAREFULLY COMPACTED TO INSURE A SOUND BACKFILL AROUND AND OVER THE PIPE. 2) BACKFILL SHALL BE COMPACTED BY MECHANICAL TAMPING THROUGHOUT THE DEPTH OF THE TRENCH TO OBTAIN 959 DENSITY AT OPT/MUM MO/S7URE-k-29 THIS /S TO INSURE A SU/TABLE SUBBASE ACCEPTABLE FOR PROPOSED STREETS AND PARKING AREAS. 3) /F /N THE OPINION OF THE OWNER, THE ENGINEER OR ANY AFFECTED GOVERNMENTAL AGENCY THE MATERIAL TAKEN FROM THE DITCH IS NOT SU/TABLE FOR BACKFILL, IT SHALL BE REMOVED AND ACCEPTABLE MATER/AL USED FOR BACKFILLING SHALL BE OBTAINED. C. TRENCHES SHALL BE EXCAVATED TO A MINIMUM OF 4 INCHES BELOW THE B07TOM OF THE BARREL OF THE PIPE AND A BEDDING SHALL BE PROVIDED AND INSTALLED OF SELECT MATERIAL SU/TABLE TO MEET VDOT PB -1 PIPE INSTALLATION REQUIREMENTS. TRENCHES SHALL NOT BE CUT OVER 16 INCHES WIDER THAN THE OUTSIDE DIAMETER OF THE PIPE UNLESS AN UNSUITABLE FOUNDATION MATER/AL /S ENCOUN7FRED 8. BASE AND PAVEMENT ITEMS A. SUBGRADE MUST BE CHECKED BY AFFECTED GOVERNMENTAL OFFICIALS, AND OWNER FOR GRADE, TEMPLATE AND COMPACTION BEFORE BASE IS APPLIED. B- BASE AND PAVEMENT MATERIALS SHALL MEET ALL 'VD 07" SPECIFICATIONS AND SHALL BE APPLIED /N ACCORDANCE WITH THE CURRENT 'VDOT' SPEC/- F/CATIONS. ALL M.47FR/ALS MUST BE- TESTED AND APPROVED BY 'VDOT' OR APPLICABLE GOVERNMENTAL AGENCY OFFICIALS PRIOR TO EMPLACEMENT. C. PAVING OPERATIONS SHALL NOT BE STARTED BETWEEN NOVEMBER 15 AND APRIL 1 WITHOUT WRITTEN AUTHORIZATION OF ALBEMARLE COUNTY OFFICIALS AND THE OWNER. D. WHEN US/NG PUG MILLED AGGREGATE BASE MATER/AL WH/CH /S TESTED BY 'VDOT' OFFICIALS AT THE PLANT, THE TEST WILL BE GOOD FOR 90 DAYS ONLY. ADDITIONAL %N PLACE" TEST SHALL BE MADE AFTER 90 DAYS. E. WHEN LOCAL BASE MATERIAL (TYPE //) /S PROPOSED FOR ROAD BASE, IT SHALL BE TESTED AND APPROVED BY `V9OT' OFFICIALS PRIOR TO BE/NG USED. OWNER AND ANY AFFECTED GOVERNMENTAL OFFICIALS SHALL ALSO CHECK AND APPROVED LOCAL BASE MATERIALS FOR DEPTH, COMPACTION, AND CONSISTENCY ONCE IT HAS BEEN PLACED IN ROADWAYS. 9. SEEDING AND MULCHING. ETC. A. ALL FERTILIZING, SEEDING, L/M/NG, AND MULCHING WILL BE DONE AT THE FOLLOWING RATES UNLESS SPECIFIED OTHERWISE IN PLANS.• 1) LIMESTONE -2000 LBS. PER ACRE 2) FERTILIZER -1000 LBS. PER ACRE (10-10-10) OR EQUIVALENT 3) KENTUCKY 31 FESCUE -150 LBS- PER ACRE 4) ANNUAL RYL-GRASS-100 LBS PER ACRE 5) MULCH (STRAW OR APPROVED EQU/VALENT)-4000 LBS- PER ACRE 10. ALL ENTRANCE PERMITS TO PUBLIC ROADS MUST BE OBTAINED BY THE CONTRACTOR AT HIS EXPENSE PR/OR TO CONS7T?UC770N. ALL OTHER PERM/7S NECESSARY TO UNDERTAKE THIS PROJECT MUST BE OBTAINED BY THE CONTRACTOR PR/OR TO CONSTRUC77ON (AT THE CON7RACTORS EXPENSE). 11. ELEVA77ONS ON 7HE PLANS ARE TO DATUM ESTABLISHED BY THE N.G.S. OF THE N. O.A.A. 12. A LONGITUDINAL DROP INLET (ON GRADE) SHALL BE POURED WITH THE THROAT ON THE SAME GRADE AS THE AD✓O/N/NG CURB AND GUTTER UNLESS SPECIFICALLY NOTED OTHERWISE ON THE PLANS. 13- ALL CONSTRUCTION STAKING WILL BEAT THE CONTRACTOR'S EXPENSE UNLESS AGREED UPON BY THE OWNER IN WRIT/NG GENERAL WATER & SEWER CONDITIONS 1. WORK SHALL BE SUBJECT TO INSPECTION BY ALBEMARLE COUNTY SERVICE AUTHORITY INSPECTORS. THE CONTRACTOR WILL BE RESPONSIBLE FOR NOTIFYING THE PROPER SERVICE AUTHORITY OFFICIALS AT THE START OF THE WORK. 2 THE LOCATON OF EXISTING UTILITIES ACROSS THE LINE OF THE PROPOSED WORK ARE NOT NECESSARILY .SHOWN ON THE PLANS AND WHERE SHOWN, ARE ONLY APPROXIMATELY CORRECT. THE CONTRACTOR SHALL ON HIS OWN INITIATIVE LOCATE ALL UNDERGROUND LINES AND STRUCTURES AS NECESSARY. J. ALL MATER/ALS AND CONSTRUCTION SHALL COMPLY WITH GENERAL WATER AND SEWER CONSTRUCTION SPECIFICATIONS AS ADOPTED BY THE ALBEMARLE COUNTY SERVICE AUTHORITY ON JANUARY 15, 1998. 4. DATUM FOR ALL ELEVATIONS SHOWN /N NATIONAL GEODETIC SURVEY. 5. THE CONTRACTOR SHALL BE RESPONS/NBLE FOR NOTIFYING "MISS UTILITY'" (1-800-552-7001). 6. ALL WATER AND SEWER PIPES SHALL HAVE A MINIMUM OF 3 FT. OF COVER MEASURED FROM THE TOP OF PIPE, OVER THE CENTERLINE OF PIPE. THIS INCLUDES ALL FIRE HYDRANT LINES, SERVICE LATERALS ,AND WATERLINES, ETC. 7. ALL WATER AND SEWER APPURTENANCES ARE TO BE LOCATED OUTSIDE OF ROADSIDE DITCHES. 8. VALVES ON DEADEND LINES SHALL BE RODDED TO PROVIDE ADEOUATE RESTRAINT FOR THE VALVE DURING A FUTURE EXTENSION OF THE LINE. ALBEMARLE COUNTY ENG/NEER/NG GENERAL CONSTRUCTION NOTES FOR SITE PLANS 1. PRIOR TO ANY CONS7RUCTON WITHIN ANY EXIST/NG PUBLIC RIGHT-OF-WAY, INCLUDING CONNECTION TO ANY EXISTING ROAD, A PERMIT SHALL BE OBTANED FROM THE VIRGINIA DEPARTMENT OF TRANSPORTAT/ON (VDOT). THIS PLAN AS DRAWN MAY NOT ACCURATELY REFLECT THE REQUIREMENTS OF THE PERM/T. WHERE ANY DISCREPANCIES OCCUR THE REQU/REMENTS OF THE PERMIT SHALL GOVERN. 2. ALL PAVING, DRAINAGE RELATED MATER/ALS AND CONSTRUCTION METHODS SHALL CONFORM TO CURRENT SPECIFICATIONS AND STANDARDS OF V.D.O. T. UNLESS OTHERWISE NOTED. 3. EROS/ON AND SILTA77ON CONTROL MEASURES SHALL SE PROVIDED IN ACCORDANCE WITH THE APPROVAL EROSION CONTROL PLAN AND SHALL BE INSTALLED PRIOR TO ANY CLEARING, GRADING OR OTHER CONSTRUCTION. 4. ALL SLOPES AND DISTURBED AREAS ARE TO BE FERTILIZED, SEEDED AND MULCHED. THE MAX/MUM ALLOWABLE SLOPE IS 2.• 1 (HOR/ZONAL: VERTICAL). WHERE REASONABLY OBTAINABLE, LESSER SLOPES OF 4.-1 OR BETTER ARE TO BE ACHIEVED. 5. PAVED, RIP -RAP OR STASILIZAT/ON MAT LINED DITCH MAY BE REQUIRED WHEN /N THE OPINION OF THE AL- BERMARLE COUNTY DIRECTOR OF ENGINEERING, OR THE DIRECTOR'S DESIGNEE, IT IS DEEMED NECESSARY IN ORDER TO STABILIZE A DRAINAGE CHANNEL. 6. ANLL T iAFF/C CONTROL SIGNS SHALL CONFORM WITH THE VIRGINIA MANUAL FOR UNIFORM TRAFFIC CONTROL DEV/CES. 7. UNLESS OTHERWISE NOTED ALL CONCRETE PIPE SHALL BE REINFORCED CONCRETE PIPE -CLASS 8. ALL EXCAVATION FOR UNDERGROUND PIPE INSTALLATION MUST COMPLY WITH OSHA STANDARDS FOR TIVE CONSTRUCT/ON INDUSTRY (29 CFR PART 1926). NOTE: HYDRANT MUST BE KENNEDY GUARDIAN (K -81A) EQUIPPED WITH CHARLOTTES - MUELLER CENTURION (A-423) VILLE THREADS WHICH IS OR APPROVED EQUAL i__ HE LOCAL STANDARD. 1 ENGTH OF BRANCH VARIES 6' MiN 2' TO 10' (270•) 7 CU. FT. 18' ALVE BO GRAVEL--� i 2500 P.SI CONCRETE BASE ANO THRUST BLOCK AGAINST UNDISTURBED STABLE OEM SOIL. STEEL PILE WHEN THE SOIL IS DISTURBED OR WHEN A HYDRANT IS LOCATED IN A FILL ANCHOR THE VALVE TO THE HYDRANT WITH 2 -3/4 - THREADED ROOS IN ADDITION TO POURING CONCRETE. IF NECESSARY, A STEEL PILE SHALL BE USED AS ADDITIONAL SUPPORT NOTE 6' GATE VALVE 8' XV TEE 3/4' THREADED ROOS TO MAIN IN ALL INSTALLATIONS. RODS SHALL BE GALVANIZED OR ASPHALT COATED 1. SURROUND WEEP HOLES WITH GRAVEL AND KEEP FREE OF CONCRETE. 2. MAINTAIN A 3' MIN. COVER FROM THE MAIN TO THE FIRE HYDRANT ( INCLUDING OITCHES ) 3. FINISHED GRADE SHALL SLOPE AWAY FROM THE FIRE HYDRANT AND VALVE BOX. 4. THE GATE VALVE IS ALLOWED IN SHOULDER OR BEHIND THE DITCH. IT IS NOT ALLOWED IN THE DITCH. TYPICAL FIRE HYDRANT ASSEMBLY DETAIL N.T.S. FIG. W-4 w�nuts Tod, wow 6' rrtmum Side View I kuru Comtficatlon of I= �f " ;saripaction rrqulred "A Cafe tnited Stell OfCR1. Mt12 x 14 rnln. sluts *`•�"' X mM. penetration Into undleturbfd =3 . or oe oppmn*d by the Svvitt Authority. I u f= TYP1ck".THR T"¢BLD wM FIG. W3-1 er PRECAST CONC. CURB STOP 7.5" 18 u #8 ANCHOR BARS FIRE LANE LOCATIONS SHALL BE CLEARLY INDICATED ON THE SUBMITTED SITE PLAN. YELLOW CURB MARKING AND APPROVED SIGNS, POSTED AT 75' TO 100' INTERVALS ARE THE STANDARD MEANS BY WHICH TO DELINEATE FIRE LANES. 12" NO PARKING FIRE LANE N REFER TO THE VIRGINIA MANUAL TOWING OF UNIFORM TRAFFIC CONTROL ENFORCE DEVICES FOR STREETS AND HIGHWAYS SIGN COL ORS.• RED LETTERS & BORDER ON A WHITE REFLECTORIZED BACKGROUND LETTERS: TWO (2) INCH "C" SERE YELLOW CURB MARK/NG FIRE LANE DESIGNATION DETAILS NO SCALE 0 �4 f I ry_ K_ N FILL;. JOINT SEALING MATERIAL CURBING -� NEW PAVEMENT 0- ;W3 Tom ;. Maar SEC3'14N 1-1 SECTION 2-2 PIPE DEGREE RENO O1 SMMS VOL. IEE ANO PLUGS VOLSIZE 00 OF �. = CI�.Yb. FEE CU.YD• U1 8EN0 t -- +0 ` N T 0 J U U O M T N 'V' O o0 �' go 2.30 230 3.01 M24 Q a CL � � 45 221/2 200 1.30 3.25 200 .240 2.32 0.15 0410 Z� 2.25 2M 0.13 . 111/4 1.30 200 2S0 0.10 6- z► a 221/2 • '1,66 210 288 013 &S 2.$i : 2.30 ;0.32 111/4 1.68 16 2'.6? 0.12. go 44 3.83 .142: ;0.63 f� Ic 12' 43 3.33 3.58 2.": '0.43 3.63 ; ±k00 1.It3 3>. : QS2. 221/2 .2.33 2.38 2.86 , "14 1.63 2.33 284 . A18 , i. THRUST !$LOCKS ARE llEC111RED 1l ER llDo TK PIPEUNE : CHANCES DIRE=W. CHANGES li= OEAO ENDS AND AT VALVES. Z USE 2300 P.S.I. CONCRETE. 3. NO Cn CIM $HALL ES POURED ON ANY PART OF Tdt JOINT. 4 THE CONSUI.TMIG V#Map SNAIL•....'1 TO Tee VVWY THS rVPE dt SIZE OF SEA Au 7H14M 0UXXS. CONCRETE THRUST BLOCKS neTSt d, A NONE PROVIDE TRANSVERSE CONTRACT/ON JOINTS EMERY 5' AND EXPANSION JOINTS AT NO MORE THAN 20' INTERVALS. JOINT SEALING MATERIAL VAR/ES 5" CONCRETE BROOM FIN/SHED --.•-- 0.25'.• 1 ' MIN. a . 'd. d 1 " A. . a �_4" �- COMPACTED SUBGRADE GRANULAR FILL 0.5" THICK PREFORMED JOINT FILLER MEW LK DETi4/L NO SCALE j'w6'zpM0wj Rom Of 'AArv, I I i I 6" A/R ENTRAINED 3000 PSI CONCRETE WITH W4.0*W4.0, 6x6" WELDED WIRE FABRIC T. 2„ ro CRUSHED AGGREGATED BASE COURSE TYPE I SIZE 21A OR 22. COMPACTED SUBGRADE CONCRETE PA VEMENT DETAIL NO SCALE fvkl A•�� FACE OF BUILDING /F CAST IN PLACE, ISOLATION JOINT W/ 0.5" THICK PREFORMED JOINT FILLER PLACE 3' GAIN, ' WITWM ' POST PANTED BLUE TO INDICATE VALVE LOCATM AS DIRECT80. MARM LOCATION MAY F£ SUBJECT TO HIGHWAY DEPARTMENT APPtOVAL. nNISHED GRAM r 10 • ' :�t.J.-CATS vA�.li>� "!,A_2'x 2'x Z -BEARING AREA. A NOIE.I. IN REMO"IE AREAS., VALVE BOXES SHALL, EXTETIO SIX (6) ITCHES ABOVE GRATE MICAL."OATE VA ow a N 00 �. = x T - E- . -A. d U1 t -- +0 N cd C'3 o E rx 0 ZYOD a N 0 00 N U1 t -- W z° z W cd C'3 o E rx 0 N N o X ri o C o 0 J U U O O fd � O N 'V' O o0 �' f� 1 V U C} W Q a CL � � N 0 l / r� U D 0 � N/F WORRELL LAND AND CAT7L�) COMPANY, L. C. TMP.• 78-20C ZONED: PD—MC USE- UNDEVELOPED �J IVIF HARLEY C. & NANNIE R. EASTER TMP.• 78-8-1A ZONED.- R-1 USE.- VACANT O �V V\v N/F HARLEY C. & NANNIE R. EASTER GLENORACHY—SEC. 1, BLK. A, LOT 1 ZONED.- R-1 !,Q USE.• I/ACANT Q �. � � L'� �` -0 t ® ' /'/ // � rx ,�o•aearw,r�ecsararr � 1l ENRON / 00 i i' *� , /� •' ~�\l \ \mss\ \ i ' l "' \ �.c3�,,, i � /� �'' j J � /',� L ND AN® ATTLE COMPANY, L.C. N/F WORRELL LAND AND CATTLE COMPANY, L.C. TMP: 78-31 ZONED.- PD—MC USE.- UNDEVELOPED TMP.- 78-20C o i I L' ,' / /' / ,,•• .f Z ED.• PD—MC US : UNDEVELOPEDpip �w 57 .32'296, 94,9 2 1 20ly5q�E 97. ' MAINTENANCE BUILDING WORRELL LAND AND ATTLE COMPANY L.C. WR A '/M/TS i l TMP.' 78-32 ZONED: PD—MC USE UNDEVELOPED �N S73 OF / LIMITS -t 750.36 / N/F r i WORRELL LAND AND CATTLE CG i Z D.• PD F i USE- UNDEVELOPED t 3 i t s Q gym, k� 346.69' ' S87' 18'36 �V 356.30' S87 12'02 "N 9�6 s so. Cyt cJ' 64 GRAPHIC SCALE 100 0 50 100 200 ( IN FEET ) 1 inch = 100 ft. N/F THOMAS JEFFERSON MEMORIAL FOUNDATION, INC. TMP.• 78—JI—A USE UNDEVELOPED 400 r OPERATING CONDITIONS: Pump shall have a shut-off head of 110 feet ani a maximum capacity of 18 GPM with complete performance per the curve (see reverse side). PUMP: Pump shall be of the centrifugal partial emission type Myers Model RG10, or equal, with an integral grinder unit and submersible type. The grinder unit shall be capable of macerating all material in normal domestic sewage including reason- able amounts of foreign objects such as plastic, rubber, sanitary napkins and disposable diapers to a fine slurry that will pass freely through the pump and a 1" discharge pipe. MOTOR: Pump motor shall be of the submersible type rated 1 horsepower at 345C RPM. 'Motor shall be for single phase 230 volts, 60 Hz. Motors shall be of the capacitor start type for high starting torque. Stator winding to have Class B insulation for operating in clean dielectric oil that lubricates bear inns acid seals and cools the windings. Motor stator to be bolted to seal plate for ease of motor replacement. Motor shall have two ball bearings to support the rotor and take radial and thrust loads. A heat sensor thermostat shall be attached to top end of motor winding and shall be connected in series internally with the motor stator. If motor winding temperature becomes too high, the thermostat will open. Thermostat to reset automatically when motor cools. The common pump and grinder shaft shall be of #416 stainless steel threaded to accept pump imp, ller and grinder impeller. SEAL: Motor shall be protected by one rotary shaft seal. Seal shall have carbon and ceramio seal faces diamond lapped to a tolerance of one light band. PUMP IMPELLER: The pump impeller shall be of the partial errission type. Impeller to be ther-ripplastic with stainless steel insert. GRINDER CONSTRUCTION: Grinder assembly shall consist of a gri:Ider impeller•and ; hredding,rirl mounted directly below the volute passage. The grinder impeller ;hall be threaded into a stainless- bha . The shredder ring shall have teeth angled 10 degrees from vertical. The ring is molded into the volute case as an integral part. All grinding of solids shall be from action of the impeller against `he shiredding ring. Both grinder impeller and shredding ring shall be of 440C stainless steel hamered to 56-60 Rockwell C. CORROSION PROTECTION: All iron castings shall be pre-treated with phosphate anr_' chrorn�c: rinse, and painted with a high quality, lead-free, air dry, alkyd enamel paint. LEVEL CONTROLS: An automatic control is provided by a float switch tethered to.the side of the pump. The float switch operates the pump directly. POWER CONNECTION: The power cord and float cord enter the submersible-PLI,np assembly by quick -connect, water -tight fittings. 465 460 455 450 445 440 435 430 425 450 445 440 435 ,4,_10- 425 30425 420 "TURNKEY" SIMPLEX 1 HP 230V 10 60- GRINDER PACKAGE Four 24" diameter by 5', 6',-7'& 8' deep fiberglass basins with an anti - flotation collar molded to the bottom with nominal wall thickness of 1/a". Each basin will be equipped with a %" polypropylene, corrosion proof cover bolted to the basin with 6 stainless steel cap screws. Basin will be equipped with a rail assembly, Schedule 80 PVC discharge piping, and a PVC ball type shut off valve. All guides, brackets and hold-downs will be of non -sparking, corrosion resistant structural polypropylene. A cast iron, spring-loaded, all rubber flapper type check valve will be installed in the internal discharge line. The pump included will be a standard RG -10 grinder pump equipped with heat sensor. Internal basin controls will consist of 2 - level controls to control pump on -pump off, and alarm circuit. These floats will terminate in a thermoplastic junction box mounted on the internal side of the basin and will be supported by a mounting bracket, also mounted on the internal side of the basin. The alarm control shall be mounted inside a NEMA 4X fiberglass enclo- sure and shall include a 1 -pole, 5 amp breaker, alarm light, push to test switch, terminal blocks, ground bar, and all necessary wiring and brackets. The alarm light shall be approximately 3" high by 31/2" in diameter and will consist of a red lexan globe. Panel is designed for remote mounting. All items used in this assembly are standard and listed in detail in the main catalog pages. Seventy-two (72) hour shipment is available and no modifications will be allowed to achieve this. Total system can be ordered by using the catalog and engineering number as shown below. Simplex 24" Diameter Packaged Basin Units Lift -Out Rail System with Alarm Panel All Parts Factory Assembled Off -Set Mountinn of Alarm Pnngml BASIN DEPTH CATALOG NUMBER ENGINEERING NUMBER SHIPPING LIST WT. LBS, PRICE 5 Ft. SP12RO-246OP-RG 24680D000 250 •` 6 Ft. BP12RO-2472P-RG 24680DO01 270 t• 7 Ft. BP12RO-2484P-RG 246BOD002 290 *• B Ft. BP12R0.2496P-RG 246BOD003 31p �• PRODUCT CAPABILITIES Capacities To 18 gpm 68 Ipm Heads To 108 ft. 32m Pump Down Range- 10 in. 254 mm Solids Handling Capacity (dia.) 1/8 in. 3 mm Liquids Handled raw domestic sewage Intermittent Liquid Temp up to 140°F I up to 60-C Motor 1 hp, capacitor start, 3450 rpm, 230V, I IA Ud, 60 Hz Acceptable pH Range 6-9 Specific Gravity .9 - 1.1 Viscosity 28-35 SSU Discharge, NPT 1 fn. 25.4 mm Minimum Sump Dia. (Simplex) (Duplex) 24 in. 610 mm 30 in. 762 mm (36 in. w/rail system) -Automatic pump only, manual pump varies with switch used. Construction Materials �:�:,,,.x. Motor Housing cast iron Motor Cap flame-retardant thermoplastic Volute Case Lexan® Impeller 30% glass tilled Noryll' Power Cord 20 ft., STOW/SJOWA, 16 ga. Mechanical Seal type 21, carbon and ceramic. Buna-N bellows, SST hardware Grinder Impeller & Shredding Ring 440 stainless steel hardened to 55 58 C Rockwell 'Registered trademark -----�-----------�--- �:�:,,,.x. N �,. - � �.� .gin.- 440 494 L.F. (11o) �°..�,.:.. ,.�•�l, ME11M! .Fg'——__--____ � �<.. rr .m,.-«:-,o-.�_x'.>..a....egm�rn+ uox�•x�,-� w_� ....- r� �� >. .:ww.EE '—_ .. `- ..w:.�� � �t-w,-:.3,x..�:ssw:-;,.�. �-� 2'1-- - - ---- - - - - -- --- .•--.�-- - E-- --- - - --�t'7 GRAAl - �� �nv-nra-,ea.u,e�-.,_-I---ms�vrs,`_.�- �~—.- -I- WEEMINM,ONMENEM F--.-_—��—__ : �- � ecm�mv>a.��re�-asczcva��vs .zcua.�a-,.ze aw�m�r..�ran.mear n:.- _ .sw,� ay— . mom..-_.a:.c IS MEll I _ ___ __ \_�`— — �f�. cy_Q. sa �..,. I ..1�k..arc p@y¢`.- _•_I�__—___ Ya:- s�rexvrsse5ci�.x_.erattm-arn>a.m�cu:xn�r:e.:�aa�xmnine-�.us,+renrtriera,�sAmzanm. _—; _ 1 __ � ar_xmc.ewsa Ta_Ww�+.m+muxxrneaor�,aznax*r 3r:m'.row-sm'ax+va�.aza. �ck�.re--v�exwy. '1 vawmxvx-m� 4 � 'a V�: .. _ - �'�i�" �: v.�u:u(.,rl(-• E \) IMEMEMEoil , t , =fir -� ��sC�,��G� - �� �------- I r ---j-- - q --___ � ._—l7[.1/`� � /TL/l-�---[.7LSli�✓ _-—`-------- ----- _"_ _'_`� __.._____�.__,...__,......,..___....e,..-....m.„a..,,._.__ _ _—"_ _._......... �-_,e,>x:�4..r=.,.-K„�,...�'_..�,.x:�.>�,ue-..,...a... .,.,-,��',�.:p;, ,......zlar3-•'� ��.'/hAJ'� n 0+00 0+50 1+00 1+50 6'o CL 52 D. /. WATERLINE PROF/LE 2+00 2+50 TYPICAL INSTALLATION TURNKEY 24" SIMPLEX GRINDER PUMP PACKAGE WITH REMOTE MOUNTED ALARM PANEL (MODELS BP12RO-2460PRG THRU BP12RO-2496PRG) PUMP MODELS: RG10-A-21 s wev, = 4M. x© PLASTIC GLASS 'C SCHED.90 )NNECT ASS'Y. 'LASTIC CONTROL M( BRACKET, �ES-23675 24JAN95 1 'td WASTE D/SCH,4RGE PROF/LE (PR/l/i4TE) 100 U. W W FPFA W 60 2 J H O 40- -�'73s�w 20 PERFORMANCE CURVE MYERS RG10 GRINDER PUMP Imom0 0% NM ON N DISCHARGE PIPE LENGTH. - 440 494 L.F. (11o) PM F1777NG EQUIPMENT LENGTH.- ME11M! MMEN�om , 29 (9 2.5 430 TOTAL EQUIPMENT LENGTH. .•--.�-- - —'�.-_-_�— _t �-_—_ �� �nv-nra-,ea.u,e�-.,_-I---ms�vrs,`_.�- �~—.- -I- WEEMINM,ONMENEM F--.-_—��—__ : �- � ecm�mv>a.��re�-asczcva��vs .zcua.�a-,.ze aw�m�r..�ran.mear n:.- _ .sw,� ay— . mom..-_.a:.c IS MEll vmnsamnn MIN sa �..,. I IMEMEMEoil , t , =fir -� ��sC�,��G� - �� �------- I r ---j-- - q --___ � ._—l7[.1/`� � /TL/l-�---[.7LSli�✓ _-—`-------- ----- _"_ _'_`� _ _—"_ __—°—__-_-- -- ____._.___ _ __Y _---__.____ .._-_____.___-__ + 4z�f'�o,.. .� _ ern` E-1 9 - - ----- __ --_ - - _- - - - --- .:�: �eoz� - --_77, _ - _.._ --._ - ----------- -- _ - --- ---- i-- - -- - ----.r - - - --- --- .-. _ _ - - — -_ _ - __ - -- - - ---- - --- -- - ----- -- - �,�_ �_.__—_-I _eusuvm. mw.vwr�sa.+znnx-eae�'.�vvassrsm:Hum+sxmnwa.�mmxu.�.�:c•.n�.vcmr+ma..zsuems..smia,reu-:rc.-.n-xicw k -r' � .,...-xrsvuoseax.e¢...�'.�aa�.m� �-- p _.-.mac' p e�ru.a-�ca.1:'eavuasa::saq� �snar�..._�s'an^nID.:>cM'x-7xiicw::. as ..saaasad� �� --- � � �-- -� mvaa:mr vmvav�e�reavramn+ma+r. >aunv .. �^+i cm,aaevmwmvrca6 �iwse..svxc....,_mmssa.�m.wux-..anrznzmaa�ev�ln�sm..aenuec+:_,rur�xmueertyv._�o sux.�w�ua-.�°varix�ekesr.w`,maw�mxr,mma.lwecnaaa•.. •. 1,..� V ,urx_rnaxscu+..xu 0+00 0+50 1+00 1+50 2+00 2+50 3+00 3+50 4+00 11IS11!11! 4+50 Ell NEIISlul 1 'td WASTE D/SCH,4RGE PROF/LE (PR/l/i4TE) 100 U. W W FPFA W 60 2 J H O 40- -�'73s�w 20 PERFORMANCE CURVE MYERS RG10 GRINDER PUMP Imom0 0% NM ON N DISCHARGE PIPE LENGTH. - 440 494 L.F. (11o) PM F1777NG EQUIPMENT LENGTH.- ME11M! MMEN�om , 29 (9 2.5 430 TOTAL EQUIPMENT LENGTH. 1�11111111101 mom No 434.00-422.3= 12' WEEMINM,ONMENEM TOTAL HEAD LOSS: 420 12f25.3= 37.3' MEN SOON1 IS MEll MIN INNINEmilli, IMEMEMEoil IIN11 11IS11!11! Ell NEIISlul q0MWroINPM 0MEMOon 0 8G110 15 20 0 5 CAPACITY GALLONS PER MINUTE 450 NOTE: Do not operate um at less than 30' TDH or in excess of 400 gallons per day. P pump 445 TOTAL HEAD LOSS DISCHARGE PIPE LENGTH. - 440 494 L.F. (11o) F1777NG EQUIPMENT LENGTH.- 435 5(45) � 1.25' , 29 (9 2.5 430 TOTAL EQUIPMENT LENGTH. 506 L.F. ® 5" LOSS/ 700 L.F.= = 5.06(5)= 25.3 425 434.00-422.3= 12' TOTAL HEAD LOSS: 420 12f25.3= 37.3' 514 I ,� 3/e-16UNC (COVER BOLTS) ON 26 1/2 DIA. B.C. EQUALLY SPACED AS SHOWN 1 1/4" DISCH. FLANGE STRUCT. PLASTIC SLIPSOCKET 1 1/4" BALL VALVE, PVC TRUE UNION, BLOCKED TYPE ANTI -FLOTATION COLLAR RAIL MOUNTING FLANGE, STRUCT. PLASTIC ,,..L SUPPORT, STRUCT. PLASTIC "TURNKEY" SIMPLEX 1 HP 230V 10 60- GRINDER PACKAGE ENCLOSURE SUR E DIMENSIONS-N4X GA -1 ALARM PANEL _ J 53 4 —3/e-16UNC X 2 LG. ANCHOR STUD (3) REQ'D. .ill,A..� iFJL Vt. //___ � •LcTa. O `CF -U1 all � L COMPONENT LAYOUT GA -1 ALARM PANEL 115V, 1PH r<CPoMWG 115V $NGLE PHASE LIQ L -- -- — — — N NEvtRAr TEPMINAL BLOCK 5 AMP GPCUIT BREAFKEP TO rESr StivITCH BLK HIGH WATFB PLARM FLOAT SLK At `R / H R -ALARM LIGHT(PED) wtTH BUrTON FLASHER I 1 .1 S -OPTIONAL BELL CR aUzzEq lF7r 5 -CM FG -1 CONNECT GROUND TERMINAL AI r0 A GOOD EARTH GROUND N NOTE:CONNECT GPEEN WIRES ALAPM FLOAT TO GROUND LUG DIAGRAM, WIRING 115V ALARM PANEL, GA -1 DOMESTIC WATER DEMAND FORM Project Name: PETER JEFFERSON PLACE Address: PETER JEFFERSON PARKWAY MAINTENANCE BLDG. Parcel78-31 No: or Subdiivision: Lot No. Blk. No. Type of Occupancy: MAINTENANCE BLDG. Fixture Lavatory - 3/8" Connection Service Sink - 1/2" Connection Water- Closet - Tank Type Fixture Value No. of Fixture 35 psi Fixtures Value 2 x 1 = 2 3 x 1 = 3 3 x 1 = 3 Combined Fixture Value Total 8 Maximum Demand 2.0 GPM A o 00 _rn E-4 �" 5 o -Z I 0 r 1 1 0' 0 � Rt GO � .......... � X23 GRAPHIC SCALE 20 a 10 20 40 ( IN FEET ) 1 inch = 20 ft. SPEC. "5, EROS PAN INSTALL 95 L.F. OF S/LT FENCE PER SPEC. 3.05 .,T0=X N Mr' 77- 7-0 = 434.49 10 " F/� lN= 429.89 10 " F/L lN= 429.78 10" F/l- OUT= 429.56 CONSTRUMOW', FENCE 1.122T TW STAKlEW . at tiz s►ii c .x.., x 4• T2ZJiII1C8 ..ALOIfCi Tft WS OF 3. STAPLE MTU MATERM TO BTAI= AND ISICMD IT tm =2 T1JICX 4. BACKFILL AND COMPACT THE MCCANATKD SOIL. POINi'8 A SHO=' HE, i s TW _"W H. Project: T 1. ' All erosion control devices must be installed and maintained In accordance /001 with the Virginia Erosion and Sedementation Control Handbook. W 2. All erosion and siltation measures are to be placed prior to or as the first Rev. Date: Date:7/17/01 step in grading. HYDROLOGICAL DATA: 3. All storm and sanitary sewer lines not in streets are to be mulched and z seeded within seven days after backfill. No more than five hundred feet D.A. = 0.7 AC. are to be open at one time. 4. All temporary earth berms, diversions, and silt dams are to be mulched za and seeded for vegetative cover immediately after grading. Straw or hay mulch is required. The same applies to stockpiles on site as well as. soil (intentionally) transported from the project site. ZLr)C) 5. Electric power, telephone, and gas supply trenches are to be compacted, Z seeded and mulched within fifteen days after backfill. 6 6. Temporary seeding will be applied within seven days to denuded 4areas which z may not be at final grade, but will remain dormant (undisturbed]) for longer Q than thirty days. For temporary seeding use fifty percent of the recommended Q rates of fertilizer and lime, and full amounts of seed and mulchi required for regular seeding. 80 7. During construction. all storm sewer inlets wil be protected by silo traps, maintained and modified as required by construction progress. Detours Available NO Length 8. Any disturbed area not paved, sodded, or built upon by Novembeir First, Skew 'Cover ' is to be seeded on that date with oats, abruzzi, rye, or equivalent and Overtopping Stage mulched with hay or straw mulch. Modify as applicable depending on proposed time of construction. PAN INSTALL 95 L.F. OF S/LT FENCE PER SPEC. 3.05 .,T0=X N Mr' 77- 7-0 = 434.49 10 " F/� lN= 429.89 10 " F/L lN= 429.78 10" F/l- OUT= 429.56 CONSTRUMOW', FENCE 1.122T TW STAKlEW . at tiz s►ii c .x.., x 4• T2ZJiII1C8 ..ALOIfCi Tft WS OF 3. STAPLE MTU MATERM TO BTAI= AND ISICMD IT tm =2 T1JICX 4. BACKFILL AND COMPACT THE MCCANATKD SOIL. POINi'8 A SHO=' HE, i s TW _"W H. Project: T _ Plan Sheet No. Designer: MMM Sheet—1 ofJ_ W Rev. Date: Date:7/17/01 HYDROLOGICAL DATA: z AHW Controls STATION: D.A. = 0.7 AC. cd I` I. Q N 100yr. Flood Plain elev. za bo -W y°-ov U Design AHW Depth—elev.— epthelev.Structures oo 00 X_ ZLr)C) Structureselev. Z C\J 6 freq. TWelev. z Q Shoulder Q elev.42,1,elev. DISCHARGES USED RISK ASSESSMENT Q 10 = 1.25 CFS Detours Available NO Length Skew 'Cover ' Q —= —CFS Overtopping Stage Q = CFS Flood Plain Management Q = CFS Criteria and Significant Impact Inv. EI. So.=n-o1 Inv. EI4�4.71 Q = CFS XXX Orig. Gr. Elev. L. 24' Orig. Gr. Elev. CULVERT TYPE & SIZE Q Q/g HEADWATER COMPUTATIONS OUTLET VELOCITY End Treat COMMENTS INLET CONT COM OUTLET CONTROL HW. HW/D I HW Ke do d D ho H LSo HW ELEV. C.M. Smooth 2 15" RCP 1.25 0.45 In.56 0.5 .35 0.8 10.810.2d 0.3 0.75 425.7E 3.8 Design Flood Excees. Prob. Elev. Overtop Flood Exceed Prob. Elev. Base Flood 1% Exceed Prob. Elev. DRA INA GE AREA MAP SCALE.• 1 "50' W rw z NCV O� cd I` I. Q N . C\J O N za bo -W y°-ov U x oo 00 X_ ZLr)C) Z C\J 6 -W z Q Q Short Version BMP Computations For Worksheets 2 - 6 Albemarle County Water Protection Ordinance: Modified Simple Method Plan: f -0 �Coa o�1 ��Acfa I Water Resources Area:')b10_op1-1ey "r P'1>t VAR. ��D. -M1i1>�T ��•. Prepare):��.AA1� e ��t7L�� 1st 142E Date: Zai 110 1 Project Drainage Area Designation Mi & & I L storm pollutant export in pounds, L = [P(Pj)Rv/121 [ C(A)2.721 Rv mean runoff coefficient, Rv = 0.05 + 0.0090) P1 small storm correction factor, 0.9 1 percent imperviousness P annual precipitation, 43" in Albemarle A project area in acres in subject drainage area,_`:0.lam- I C pollutant concentration, mgA or ppm target phosphorus f factor applied to RR V required treatment volume in cy, 0.5" over imperv. area = A(1)43560(0.5/12)/27 RR required removal , L(post) - f x L(pre) %RR removal efficiency, RR1001(post) Imoervious Cover Computation (values in feet & square feet) Item pre -development Species Moisture !Area post -development General ]Area Roads Length Width subtotal Characteris' Length Width subtotal ; Indicator Habitat Ponding 01 oil/ 0: 0 Q1 Exposure Form I leigh( 01 Native Non- 01 Common Name Status i of 1 Grease 01 Disease System r , 01 S stern FAC 01 i Driveways Length Width no. subtotal I Length Width no. subtotal ! rand walks _ H ! 01 Grass 2-3' 0 01 i Yes - High - redlo htnrk Incas! Xeric Xmir taproot I DI , Mesic ;Parking Lots 1 2 3 41 1 2 3 441 i ,Structures Area no. subtotal I Area no. subtotal i Sun Crass Oi of Oi i O� 01 0 - Bhu•jnud Oi 01 0; I FACW 0 2-4 H 01 0i 0! H Shallow Upright shrutn ...__._..-.._......_..-......._.__-.._------ Actively -grazed pasture & Area Yes ; /; ,�, _ Area a' Mrtic ; p U, yards and cultivated turf Co[ o Ix 0.08 = i M x 0.08 = ! Active crop land Area - Yes Area Deschampsia caespifosa FACW Mesic 2-4 ix 0.25= 11 1x_0.25= ; _ other Impervious Areas 2-3' Fiberous a . Mynork prnnsytvrorian High May become invasive. Rv(post) , V .(02> ¢85. min. values Redevelopment (For Development Areas, existing impervious cover > 20%) C I f , 1(pre) * 1 Rv(pre) 1 L(pre) i L(post) ; RR % RR i Area Type t'Development MDrinking Water Watersheds Other Rural Land Interim Manual, Page rev. 31 March 1998 GES 4. Number of Species A minimum of three species of trees and three species of shrubs should be selected to insure i diversity. In addition to reducing the potential for monoculture mortality concerns, a diversity of .rees and shrubs with differing rates of transpiration may ensure a more constant rate of evapotranspiration and nutrient and pollutant uptake throughout the growing season. Herbaceous ground covers are imponaritto prevent erosion of the mulch and the soil layers. Suitable herbaceous ground covers are identified in Table 3.114C. 5. Number and Size of Plants he requisite number of plantings varies. and should be determined on an individual site basis. On average, 1000 trees and shrubs should be planted per acre. For example. a bioretention area treasuring 15'x 40' would contain a combination oftrees and shrubs totaling 14 individuals. The Prince Georges County recommended minimum and maximum number of individual plants and :pacing are given in Table 3.11-4. Virginia iurisdictions with significant experience with bioretention prefer the simpler speci'rcation of 1 ii trees and shrubs per 1,000 square feet of basin area, with placement specified by a landscape professional to simulate natural conditions. Two to three shrubs should be specified for each tree (2:1 to 3:1 ratio of shrubs to trees). A. installation. trees should be 1.0 inches minimus; in caliper, and shrubs 3 to 4 feet in height or 18 .o 24 inches in spread per ASMI Z60. Ground cover may be as seed or, preferably. plugs. The relatively mature size requirements for trees and shrubs are important to ensure that the installation of plants are readily contributing to the bioretention process (i.e., evapotranspiration, pollutant uptake). TABLE 3.11-5 Recommended Tree and Shrub S acing I Tree Spacing (feet) Shrub Spacing (feet) Total Density i (stems!acrel V Ivlaximum 19 12 400 Average 12 8 1000 Bioretention Area Soil Specifications 1. Planting Soil The bioretention areas shall contain a planting soil mixture of 50% sand, 30ero leaf compost (fully composted, NOT partially rotted leaves). and 20% topsoil. Topsoil shall be sandy loam or loamy sand of uniform composition. containing no more than 5% clay, free of stones, stumps, roots, or similar objects Greater than one inch, brush, or am• other material or substance which may be harmful to plant Growth, or a hindrance to plant growth or maintenance. The top soil shall be free of plants or plant parts of Bermuda Grass, Quack grass, Johnson grass, Mugwort, Nutsedge, Poison Ivy, Canadian Thistle or others as specified. It shall not contain toxic substances harmful to plant growth. The top soil shall be tested and meet the follo-ving criteria: pH range: 5.0-7.0 Organic matter: Greater than 1.5 Magnesium (Mg): 100- Units Phosphorus (P,OS): 150- Units Potassium (K,O): 120- Units Soluble salts: not to exceed 900 ppm .9 MMHOS/cm (soil) not to exceed 3.000 ppm'2.5 MMHOS/cm (organic mix) The following testing frequencies shall apply to the above soil constituents: pH, Organic Matter: 1 test per 90 cubic yards, but no more than 1 test per Bioretention Area Magnesium. Phosphorus, Potassium, Soluble Salts: 1 test per 500 cubic yards, but no less than 1 test per borrow' source One grain size analysis shall per performed per 90 cubic yards ofplanting soil, but no less than 1 test per Bioretention Area. Soil tests must be Verified by a qualified professional. 2. Mulch A mulch layer shall be provided on top of the planting soil. An acceptable mulch layer sha.1 include i shredded hardwood or shredded ---ood chips or other similar product. Of the approved mulch products all must be well aged, uniform in color, and free of foreign: material including plant material. 3. Sand The sand for bioretention basins ---hen utilized, shall be ASTM C-33 Concrete Sand and free of deleterious material. 4. Compaction Soil shall be placed in lifts less than 18 inches and lightly compacted (minimal compacti- e effort) by tamping or rolled xith a hand -operated landscape roller. Bioretention Area Planting Specifications 1. Root stock of the plant material shall be kept moist during transport from the source to the job site and until planted. 2. Walls of planting pit shall be dug so that they are vesical. 3. The diameter of the planting pit must be a minimum of six inches (6") larger than the diameter of the ball of the tree. 4. The planting pit shall be deep enough to allow 1/8 of the overall dimension of the root ball to be above Grade. Loose soil at the bottom of the pit shall be tamped by hand. 5. The appropriate amount of fertilizer is to be placed at the bottom of the pit (see below for fertilization rates). 6. The plant shall be removed from the container and placed in the planting pit by lifting and carrying the plant by its' ball (never lift by branches or trunk). 7. Set the plant straight and in the center of the pit so that approximately 1 /8 of the diameter of the root ball is above the final grade. S. Backfill planting pit with existing soil. 9. Make sure plant remains straight during backfilling procedure. 10. 'Never cover the top of the ball with soil. Mound soil around the exposed ball. 11. Trees shall be braced by using_'" by'_" white oak stakes. Stakes shall be placed parallel to walkways and buildings. Stakes are to be equally spaced on the outside of the tree ball. Utilizing- hose and wire the tree is braced to the stakes. 12. Because of the high levels of nutrients in storm -rater runoff to be treated, bioretention basin plants should not require chemical fertilization. TABLE 3.11-7C RECOMMENDED PLANT SPECIES FOR USE IN BIORETENTION -- HERBACEOUS SPECIES Species Moisture Tolerance Mwphology General Comments Reg! e Reg! e Characteris' Characteristics Indicator Scientdic Nim). Indicator Habitat Ponding Sall oil/ Metals Insects Exposure Form I leigh( Root Native Non- Wildlife Common Name Status Grease (days) Disease Grease iGrease Disease System native S stern FAC nallve 1-2 M "gros"salba FAC Mesic. 1-2 if - H H Shade Grass 2-3' Fiberous Yes - High - redlo htnrk Incas! Xeric Xmir taproot Mesic and -.]ruder Shallow Andioprxjongrtatdi rAC Dry 1-2 - - - - Sun Crass 2-3• Fiberous Yes - Ilinh - Bhu•jnud Mesh? - Lindera benzoin FACW Mesic 2-4 H H Shallow Upright shrutn 642' Deep Yes lone to windthrow. spicebush Mrtic In well 1-2 M M M Sun Shade tree 40-70' Shallow - Yes Low Deschampsia caespifosa FACW Mesic 2-4 H 11 H Sun Grass 2-3' Fiberous Yes Mynork prnnsytvrorian High May become invasive. tufted hairgrass 11 to wet M I I Skit 1 to Itolmded. 011' Shallow Yrs Typically single Shallow Shallow Yes Low Not well documented for bald cypress Mesic partial cornpacled partial stern free 100' 1 redeta helix FACU Mesic 1-2 - 11 Sun F_vrryreen 2.4 riberow; - Yes I ow Sun Er fish iv 6.12' Shallow Yes 1.2 nlnebmk M Mesic if round cover Dense shade Shallow Shallow Yes Low Lotus Corniculatus FAC Meslc • 1.2 H L H H Sun Grass 2.3' Fiberous Yes High Member of the legume bfrdsfool-trefoil Ginkgo biloba Xeric Mesic 2-4 14 H H H Sun Large tree ShalloW Shallow Yes family. TABLE 3.11-7B RECOMMENDED PLANT SPECIES FOR USE IN BIORETENTION -^ SHRUB SPECIES Specles Molsture Tolerance Mlorphology - General Comments Reg! e Regime Characteris' ScienfG6c Name Indicator Habitat Ponding Salt OiI! Metals It Exposure Form Heigh) Root Native Rohl common Name Name Status Wddlrle (days) Crnnnwn Nome Grease Disease iGrease System native Jumpetus hotwontaLs'Dar 1iarbor' FAC Dry 1-2 M H 11 M-11 Sun Matted shrub) 0-3' Deep - Yes creeping juniper t'ypirmlly tall Mesic • Shallow Yes I ow Edge and perimrlrr• fruit htnrk Incas! Xmir taproot Mesic and -.]ruder Ina i n tolr•nanrr • plubleol; free Is also Lindera benzoin FACW Mesic 2-4 H H Sun Upright shrutn 642' Deep Yes lone to windthrow. spicebush FAC In well 1-2 M M M Sun Shade tree 40-70' Shallow - Yes Low Fruit stains sidewalks Mrsir. Mynork prnnsytvrorian i AC Mesic 2.4 11 M M I I Skit 1 to Itolmded. 011' Shallow Yrs Typically single bayberry Shallow Yes Low Not well documented for bald cypress partial cornpacled partial stern free 100' planting In urban areas. sun shrub Phyeocarpus opulirollus FAC Dry 2.4 M H Sun Upright shrub 6.12' Shallow Yes 1.2 nlnebmk M Mesic if Sun Dense shade 60-70' Shallow Yes Low Branches can split easily Japanese zelkova to wet tree in sloons. Ginkgo biloba FAC Mesic 2-4 14 H H H Sun Large tree 50-60• Shallow Yes Viburnum cassinoides FACW Mesic 2.4 H 11 If 11 Sun to Rounded, 6-H' Shallow Ye•, to deep nonhmn wild raisin offensive, odor front It uil Gleddsiafnacanthos FAC Mesic 2.4 pallial f"nlllpitclod - M Sun Small canopied 50.75' Shallow Yes Low Selectthornless valiely. honeylocust null •3111111 vrhunnun av,1011'nl I At: Mesh: 2 4 It 11 11 11 :ilm lu I Ipughl, nndlll- 0 IV Shallow Ve.; - arurw wood variable pal tial slennned shrulb taproot sun Jurtiperos virgioiana FACU Vibumunr tentago FAC Mesic 2.4 H H H 14 Sun to Upright mutlll- 8.10' Shallow YPF Evergreen nannyberry Xeric I parlial sun stemmed shrwb Comments ics Wildlife -!- High Evergreen Fligh - I Ilgh Coastal plahl specles Mod. May be. difficult 1n locale. 01 CLASS I RIPRAP O LENGTH (IN FEET) _ 6 X DRAINAGE AREA A !�,W�,__ (IN AC.) �► %//��, DiVERSION DIKE COARSE AGGREGATE EXCAVATED FILTER C AREA CLOTH *COARSE AGGREGATE SHALL BE VDOT #3, #357 OR #5 OUTLET (PERSPECTIVE VIEW) TOf = STONE WEIR q-2,3.t�•O . (JP -4 C/ - V11- - 4"-6" NON -PERFORATED PVC PIPE O 1 X MIN, SLOPE -. CLEAN-OUT -- r- TOP OF BERM = 425.00 W/WATERTIGHT r !r CAP �-TRS�RF�=ac�r.e�v1 r illi SP 410 PERFORATED PVC UNDERDRA/N ® 1.00 % /r l L_W L/f/1L-L/ F PRO VID, NORTH -SOUTH RUN - 70 L.F. (2) 35' SECT/ONS W/ CLEANOUTS F/L /N= 419.90, F/L OUT= 419.55 (CENTER 9 TEE) S= 1.009 EAST -WEST RUN. - 55 L.F. (OUTFALL BELOW STONE FILTER) F/L /N= 419.55, F/L OUT= 419.00 S= 1.009 06, 5CIL 11 19.55 1'SAN.D L A169.. - L LOAM OR GRANULAR EARTHFIL-L 4"1 PERFORATED PVC PIPE O 1% MIN. SLOPE TABLE 3.11-7A RECOMMENDED PLANT SPECIES FOR USE IN BIORETENTION ---TREE SPECIES i Moisture Tolerance 410 PERFORATED PVC UNDERDRA/N ® 1.00 % /r l L_W L/f/1L-L/ F PRO VID, NORTH -SOUTH RUN - 70 L.F. (2) 35' SECT/ONS W/ CLEANOUTS F/L /N= 419.90, F/L OUT= 419.55 (CENTER 9 TEE) S= 1.009 EAST -WEST RUN. - 55 L.F. (OUTFALL BELOW STONE FILTER) F/L /N= 419.55, F/L OUT= 419.00 S= 1.009 06, 5CIL 11 19.55 1'SAN.D L A169.. - L LOAM OR GRANULAR EARTHFIL-L 4"1 PERFORATED PVC PIPE O 1% MIN. SLOPE TABLE 3.11-7A RECOMMENDED PLANT SPECIES FOR USE IN BIORETENTION ---TREE SPECIES Species Moisture Tolerance Morphology General Comments Regime Characteristics S� ienhnr N.unr hldladol I labdat I'oodinq Sall Dill Melals Insrrls 1' xposule ]nun 1lcrllhl Rohl Native. Non- Wddlrle Crnnnwn Nome Status (days) iGrease Disease S stem native Robulin pseudo acacia rAC Mesic - 2-4 11 11 H M Sun t'ypirmlly tall 3050, Shallow Yes I ow Edge and perimrlrr• fruit htnrk Incas! Xmir and -.]ruder Ina i n tolr•nanrr • plubleol; free Is also lone to windthrow. Sophora japonica FAC Mesle 1-2 M M M Sun Shade tree 40-70' Shallow - Yes Low Fruit stains sidewalks Japanese pagodatree etc. raxodium dutichum FACW Mesic - 4.6 M H Sun to Typically single 75- Shallow Yes Low Not well documented for bald cypress Hydric partial stern free 100' planting In urban areas. sun Zelkova serrals FACU Mesic 1.2 M M if Sun Dense shade 60-70' Shallow Yes Low Branches can split easily Japanese zelkova tree in sloons. Ginkgo biloba FAC Mesic 2-4 14 H H H Sun Large tree 50-60• Shallow Yes Low Avoid fomate species Maidenhair bee to deep offensive, odor front It uil Gleddsiafnacanthos FAC Mesic 2.4 11 M - M Sun Small canopied 50.75' Shallow Yes Low Selectthornless valiely. honeylocust large tree to deep variable taproot Jurtiperos virgioiana FACU Mesic . 2.4 H H I H Sun Dense single 50.75' Taproot Yes Very Evergreen eastern red cedar Xeric I stembee High k'orhruteria park colata FACU klesic 2.4 H H li H Sun Round. dense 20-30' Shallow - Yes No - otden-Hain tree shade boo I iquieambar stpacu4ua FAC klesic 4-6 H H H M Sun Large bee 50-70' Deep Yes High Fdge and perimeter; fruit is a swee gum I I I taproot I I I maintenance problem. Nyssa sytvahca FACW Mesic . 4-6 H H H H Sun Large Ime 40-70' Shallow Yes High black gumHydric to deep taproot CROSS SECTION 1E A' TOP OF LIMIT OF - VEGETATED BERM DISTURBANCE GRADING TREES LIMIT SHRUBS t3 _ MIN MIN. BIORETENTION AREA LIMIT :3i :v: .:v'. v V• V V * H• •Y •. * W to 00, GRASS &UFZ:ER. .. ... .. ...... EXISTING EDGE SHEET FLOW OF PAVEMENT GROUND COVER OR MULCH LAYER JA PLAN VIEW (NOT TO SCALE) OIDIA ��� 00), 'D �N col rn �V J a Z .d �+1 J Cdw Z 03 N Op O {� ocmti00U Zf24 N N O J W� N`I° 0 o as "' t` y!-�- s~o�W r� t y � �a o a�O �D X 6 w Q