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WPO200600084 Plan - E&S Erosion Control Plan 2007-02-05
EROSION & SEDIMENT CONTROL NARRATIVE BIRCHWOOD PLACE ALP,EMARLE VIRGINIA 3 NOVEMBER 2006 Prepared by: TERRA CONCE.PTS, PC 224 Co art Square Chariwttcsville, Virg;inua 22902 434. 235-4005 Project Description I 'The Birchwood lapro development is proposing 2 commercial units On 3.66 acres. The 1 P subject property is located adjacent to the Great Value Shopping Center in Crozet, VA along State Routy 240, The US joiner Site, whichis carrontly under const •uc:tion borders the east tine. "There is a stream alon > the rear property line of the site which i. protected s x accred. by property b P 1 l a 7.00' stream buffer. One entrance to the site is proposed off of Route 240, Other Improvements consist of paved parkin curb landscaping, and a stormwater •. b v a 1 P parking, P 6, tt.n rvanre system which will outlet into the existfn ggpond on the US joiner oiner Site, Y Existin.r Site Conditions the existing site, which is ad-acent to the Great Value is primarily wooded with slopes b 1 primarily P ran m - from 1 i to 50 % . There is an existing stock rale in the middle of the site, which & g i e, writ be, uses to raise the Parking to grade, rax the backhalt of the site. Ap1roxfmatel W 1.85 acres at the roar of it,, site will remain untouched a,s tte mat -it of due lies within the 100'streaxn Y buffer. All storm water drainage on the site is cortvcyed as surface flow. The current topography Slopes south to north, falling towards Parrott Creek at the rear of the site. .Agjacennd Property > n i. the south b State Route 240. To the east is the US Joiner Site The property is bound on s P i Y enrrerrily under construction.'To na west lies the Creat Value Shopping Center.And the intermittent stream parallels the northern property line. Off She Areas Only a 1. ` o nt of runoff from t outer 240 and oven less from the connection Perot to the small am u Great Value will come cmtu the site. This runoff will be conveyed t to a pond which will. be Joiner x Though the pond lies i n the joiner Site it will be u sized to shared b the US e Site. > 1 1 Y g P P manage runoff front both sites. This pond will also be used as the main sonn-ce. of sediment control for the site while under construction. Earthwork Overall, the site will be majority fill, with anestimated volume of 12,500 cu He yards of fill, 5,700 of that will be cut from within thetS ro er y boundaries moved tap areas requiring fill, P P 1 K 'The remaining, 6,800 cubic yards will be imported from the Wicknain Pond site down the street, which currently has an approved Erosion and Sediment Control Plan. SoU's According to the Soil Survey of Albemarle County, the following loamy soils are present on site: Name Code Erodibility Permeability I)epth Shrink/Swell Strength Braddock 8C3 severe moderate 160" low to moderate low Thurmont 81B severe moderate x.68" low low Lldorthents88 severe moderate n/a n/a n/a Scheduling Construction for the project is anticipated to begin late December or early January of 2007. Phase 1, which includes the bank, should be completed around June 2007. A start due for Phase 11 construction is yet to be detemiined. f risieal Erosion Areas there are existing areas ort q 1 slopes which he in the 400' stream buffer and will remain undisturbed. Proposed 2.1 slopes will only exist on the inside ofthe pond, and will be protected by rip rap at locations which receive significant amounts of runoff. Erosion & Sedinnent'C:nntrol Measures Erosion and sediment control for the site will be handled in two phases. Phase A ofthe proposed erosion control plan is intended to protect the site during the initial mass grading of the project white the building and parking areas are brought to their proposed grades but before installation of building slabs, parking lot curb and stone base. Phase B of trte plan serves to protect the site after installation of•building slab and parking lot stone base and curb and when County Erosion Control Officer approves removal of the sediment basin. For Phase A, the exiting pond on the US Joiner Site will be expanded to the full size of the future stormwater management pond, and will be used as the temporary sediment tap. The basement wails for the office building shall be constructed concurrently with the pond improvements, as the building waits will be required to support the westernportion ofthe pond. Temporary doversiondikes ill be utilized as tine building/parking areas are brought to grade to direct a majority ofthe site's runoff to the sediment nap. 'The retaining wall along the western and northern portion shalt be constructed as the site is brought up to rough grade. A construction entrance will be the erosion control measures for the improvements to the entry road at Route 240. Permanent Stabilization As mentioned above. permanent seeding- is to be died to all areas not proposed for P Fl P P hardscape on building improvements as soon as possible. Please see the permanent seeding specifrcmions in Chapter 3 Section 32 of -tate VESCI{. StoxmwaterManagement Allstornwa er management, in terns of detenti n and water -quality are to be accomplished rto 1 Y P on-site, as shown on tate attached plan, mainn'tennalnOe In general, all erosion andsediment control measures will be checked daily and after each Significant rainf°all. The following items will be checked in particular: 1. The sediment traps and basins will be checked regularly for sedim:ont e1tanout- 2. Drainageway improvement's shall be inspected after each rain event to determine if further armoring is necessary. 3. The gravel outlets will be checked regularly for sediment buildup which would prevent drainage. If the gravel is clogged by sediment, it shall be removed and cleaned or t epltued.. 4. Silt f .nce barriers and diversion dikes will be checked regularly for undermining or deterioration and 7 as necessary. repaired Sediment shall be removed when the level of P sediment deposition reaches halfway tothe top ofthe barrier. 5 'The seeded trieds will be chocked regularly to ensure that it good stand is maintained. Areas shall be fertilized and reseeded as determined necessary by the county agent. State TvIinimunt Standards An erosion and sediment control program adopted by a district or locality mustbe Consistent with the following Criteria, techniques and methods: 1 1 ern. anent or temporary soil stabilization. shall be applied to denuded areas within. seven. P Y IP days ier final grade is reached on any portion ofthe site 'Temporaryorary soil stabilization shall be applied within seven days to denuded areas that may not be at final grade butwill i emah. dot mart for longer than 30 days. Permanent stabilization shall be applied to areas th,...` , to be left dormant for more than one year. 2 During construction ofthe project, soil stockpiles, and borrow areas shall be stabilized. or � P .1 P protected with sediment trapping measures. l he applicant is responsible for the temporary motet pion amt permanent stabilization craft soil stockpiles on site as well as borrow areas 1 P p e t and sell intentionally transported from the project site. A permanent vegetative cover shall be established on denuded areas not otherwise permane. ,11y stabilized_ Permanent vegetation shall not be considered established until a I round cover is achieved that is uniform mature enough to smvivc and will inhibit erosion. 2. Sediment basins and traps, perimeter dikes, sediment barriers and other measures intended to trapsediment shall be constructed as a first step in an land -disturbing activity and shall P kg Y Y be made functional before u slo e land disturbance takes place. 3 Stabilization measures shall be applied to earthen structures such as darns dikes and pp u , diversions immediately after installation. 4 Seder rut traps and sediment basins- shall be designed and constructed based upon the total P g P drainage area to be served by the trap or basin. a 'The minimum storage capacity of a sediment trap shall be 134 cubic yards per acre of drainage area andfire trap shall only control drainage areas less than three acres. 1 Surface runoff front disturbed areas that is comprised of flow from drainage areas greater than at equal to three acres shall be controlled by a sediment basin. The minimum storage ca:pacity of a sediment basin shall be 134 cubic yards per acre of drama e area, The outfall system :shall, at a minimum, maintain the structural integrity, ofthe basin during a. twenty- five year storm o£24 -hour duration. Runoff eriefficients used in runoff calculations shall correspond to a bare earth condition or those conditions expected to exist while the sediment basin is utilized - 5. Cut and fill slopes shall be designed and constructed in a mariner that will minimize erosions. Slopes that are found to be eroding excessivety within one year of permanent stabilisation shall be provided with additional slope stabilizing measures until the problem is con oted. 6. Concenhated runoff shall not flow down cut or till slopes unless contained within an adcqu to, temporary or permanent channel, flume or slope drain structure. 7 Whe.-ver water seeps fiorn a slope face, adequate drainage or other protectionshall be proe n< ad. 8. All storm sewer inlets that are made operable during construction shall be protected so that sediment -laden water cannot errter the conveyance system without first being filtered or otherwise treated to remove sediment. 9. Before newly constructed stormwater conveyance channels or pipes are made operational, adequate outlet protection and any required temporary or permanent channel fining shall. be installed in both the conveyance channel and receiving channel. When work in a live watercourse is perforated, precautions shalt be taken to minimize encroachment, control sediment transport and stabilize the work area to the greatest extent possible doing construction. Nonerodible material shall be used for the construction of causeways Said cofferdams. Earthen fill may be used for these structures if armored by nonerodible cover materials. _. When a live watercourse must be crossed by construction vehicles more than tiwnce in any six-month period, a temporary vehicular stream crossing constricted of noneroclible material shall be provided. 3. All applicable federal, state and local regulations pertaining to working it or crossing live watercourses shall be met. For Phase :B, the underground stormwater corwey ante system shall be installed, followed by , building slabs, parking lot stone4 base, and curbing. The sediment trap will be removed and - The bed and banks ora watercourse shall be stabilized immediately .after work in the standard inlet protection measures installed to minimize silt build up in the underground watercourse is completed. detention systems. Prior to demobilization, the contractor shall flush all ofthe underground _. i+:nte: ' 1.1/3/2th36 q Underground ound utilit • lines shall be installed in. accordance with. the following standards in gF 5 e e detention systems to remove any accumulated silt. Perimeter measures will remain in place addition to other applicable criteria: until removal is approved by the County Erosion Control Officer, a. No more than 500 linear feet of trench may be opened at one time, b. Lxcaysied material shall be placed on the uphill side of frenches, Vege)ttativt Practices v i;flluent: from dewatering operations shall be filtered or passed through approved sediment After the majority ofthe grading program has been executed and, in particular. the cut anti rill trappin,, device, or both, and discharged in a manner that does not adversely affect flowing streams or off --site property. slopes for the project have been established, they should be redressed with an ample depth of it. Material used for backrilling trenches shall be properly compacted in order to minimize topsoil from the stockpile and surfauce roughened. Thereafter, fertilizer, permanent seeding erosion and promote stabilization. and mulch should be applied. To those areas exceeding a 3:1 gradient, soil stabilization e. RestabiSizafion shall be. accomplished in accordance with these regulations. matting is to be applied and stapled to the slope, If for some reason, parking area construction f. Applioable safety regulations shall be complied with. does not commence soon after the mass gracing of the site is complete, exposed areas are to be treated with temporary seeding and mulch until such lime as 'finished construction begins. 6. Where :onstnuction vehicle access routes intersect paved or public roads, provisions shall. be,. `uad� to minimize rho transport ofsectiment by vehicular tracking ono the paved Management StTa1 egies surface Where sediment is transported onto a paved or public react surface, the road I Construction will be sequenced so that grading operations can begin and end as quickly as sm`fet, shall be clamed thoroughly at the end of each day. Sediment shall be removed possible. from the roads by shoveling or sweeping and transported to a sediment control disposal 2. Areas which are outside the construction limits and not to be disturbed shall be clearly area. St -,wt washing shall be allowed only after sediment is removed in this mann`. This marked provisiem shall apply to individual development lots as well as to larger land -disturbing 3. Tree protection shall be installed before any grading activities commence and before activities. equipment and material storage areas are established. 4. Sediment trapping measures shift be installed as a first step in grading and will be seeded 7. All temporary erosion and sediment control measures shall be removed within 30 days and mulched immediately following installation. after final site stabilization or after the temporary measures are no longer needed, unless 5. Site walls are to be constructed early in the construction schedule and the areas otbewke authorized by the local program authority. 'Trapped sediment and the disturbed immediately above and below them Stabilized as quickly as possible. soil aretts resulting from the disposition of temporary measures shall be permanently 6. Matting and seeding, whether temporary or permanent, will follow immediately after stabilised to prevent further erosion and sedimentation. grading. . Pauxi (Joinerl240) 7, Construction is to be sequenced such that, once cut and fill slope grades have been Properties and waterways downstream front development ment sites shall be protected from p y p 1 established and erosion control measures applied, no further disturbance ofthe slopes will sediment deposition, erosion and damage due to increases in volume, velocity and peak be necessary. -- 8. All construction in and around drahnageways shall be strategically scheduled appreciating :1) Lernhh of of raland fi e al fe, - 200 ft pending weather conditions to avoid work in, or disturbance of, the channels during rain events. All stabilization products, equipment and personnel to install them shall be on-site at the time disturbance is to commence. In the event weather interrupts work within a ' drainagewa:y, emergency measures are to taken to temporarily stabilize the channel so that it functions without undue erosion taking place until work can progress. 9. The site contractor shall be responsible for the installation and maintenance of all erosion and sediment control practices. Sam S"C"valuesmgt !?<EnterSlope(%ert/1Wtt) 70" After achieving adequate stabilization, the temporary erosion and sediment controls will be cleaned rap and removed and fiat grades established according to the gradingplan for M0245 the project I. flow rate of stormwater ruuofffor the stated frequency storm of 24-hour duration in accordance with the following standards and criteria: a. Concentrated stormwater nmoff leaving adevelopment site shall be discharged ue t into an adequate natural or man-made receiving channel, pipe or slotm Sewer system.. Por those sites where rutnoffis discharged into a pipe or pipe system, downstream stability anaalyses at the outfall of the pipe or pipe system shall be performed. b. Adequacy of all channels and pipes shall be verified in the following manner: (1) The applioair shai'1 demonstrate that the total drainage area to the point of analysis within the channel is one hundred times greater than the contributing drainage area ofthe project in question, or (2) (a.) ],Quina] channels shall be analyzed by the use of a two-year ato'nn to verify that stormwater willnot overtop channel banks nor cause erosionof channel bed oi- banks; and 1. (b) All previously constructed ratan -trade channels shall be analyzed by the use of a ten- year storm to verify that stormwater will not overtop its banks and by the use of a two- year storm to demonstrate that stormwater will not cause erosion of chxrutel bed or banks; amid 2. (c) Pipes and storm sewer systems shalt be analyzed by the use of a ten-year storm to verify that stormwater will be contained within the pipe or system" c. if existing natural receiving Channels or previously constructed man-made channels or pipes are not adequate, the applicant shah: 1 Improve the channel to a condition where a ten-year storm will not overio the banks and F P a'two-year storm will not cause erosion to the channel bed or banks;. or (2) improve the pipe or pipe system to a condition where the ten-year storm is contained within the appurtenances; or 3 Develop a site design that will not cause thepre-development peak runofirrare fromte - year storm to incecase when nmoff ontfalls into a natural channel or will iotoause the P P 1 3 pre -development peak runoff rate from. a ten-year slorin to increase whenrunoffoutfalls into to man-made channel` or ,I Provide a combination of channel imP rovennent stormwater detention or other measures which is satisfactory to the plan -approving authority to prevent downstream erosion. d. The applicant shall provide evidence of P ermission to make the improvements. c. All hydrologic anal ses shall be based on the existing watershed. characteristics and the Y g ultimate development ofthe subject project. f If tire applicant chooses air option that includes stormwater (f tention he shall obtain approval from the locality of a plan for maintenance ofthe ck tcrition facilities. The plan shall set forth the maintenance requirements ol'the facility andi .die pCrson responsible Por performing the maintenance. g. Outfall fall from a detentionfacility shall be discharged to areceiving channel, and en 4 rb y dnssi pators shall be laced at the outfall. of all detention.facilities • ss" } p as necessary to provide a stabilized transition from the facility to the receiving channel, h. All on-site Channels must be verified to be adequate. i. Increased volumes of sheet flows that may cause erosion or sedimentation on adjacent property shut] be diverted to a stable outlet, are u . Stu channe=P' . c or pipe system, or to it detention facility. a. In applying these stormwater nmurf cri.teria individual deal lots orF arcels in a residential commercial or industrial development shall not be considered to be separate development roi ects, Instead the development, s whole, p nashall 1. e wnsiaered to be a Single projects, ,b development project hydrologic parameters that reflect tare uitimate development condition. shall be used in all engineering calculations, b All measures esud toprotect properties and waterways shall be employed in a mamirr Which ratmmt:.s impacts on the physical, cheirricill slid h ,.loGua.rnxar:ty. frivers, streams and other waters ofthe state. 1000.0 900,0 800.0 70D.o 600.0 500.0 400.0 300.0 200.0 100.0 Sediment Basin #1 0.0 t---1 Ls. +-:T_ I-!_2 _�Lj u L i- 17 _.:.t.:<1 683 684 685 686 687 688 689 690 691 ELEVATION on...Y..., APPBOVE C by She Albernarle County Community Developntsttt Department Date TERRA CONCEPTS, P.C. CIVIL ENGINEERS i Al DSCAI'I: ARCHITECTS 224COUR1 SQUARE UJARL(YrTf1SVf1,l,E, *,IRGNIA-22902 Pbt, 4P4 2354c05 FA Y 41-295-2103 Pnua Jove R-lo"vel Plaine . __. ... _. i+:nte: ' 1.1/3/2th36 1),siJ, ger:- tIIlC}"; Watershed ID: ESC (sediment trap) -. . 'Drainage Area: 3.64 Acres c -factor. n ,,.-t.... (see worksheet) _ tc: t•,, mins. (seeworksheet) �i *ems } H eP Time of Concentration ,Yorksheet. Weighted c -factor Worksheet Overland Flow Time (roorand pavem®rat) --- Cover Type -- Area c ' r••d `Source, Seelye Chart as medtfied in VOOT Drainage Manual (Fig. - Bare Packed Soil 2.04 0.45 11.5.1.1 on Page 1-13E) . Pauxi (Joinerl240) 1.82 0.85 Notes ...... _.... :1) Lernhh of of raland fi e al fe, - 200 ft 2) Calculate a separate To lar each ground cover condition along the flowfeith ' c -factor = 0.63 Enter Le hof Stri @ P () Sam S"C"valuesmgt !?<EnterSlope(%ert/1Wtt) M0245 022 Dense grassEnter Rational Metwd C value Q28 Averdge grass 0,36=Poo, grass 7-8-2-11 Result To minutes 1 ) 0 48 &tire sari ,. r" t- > . �.Jc.,��C-rrq,, w�. ...._.. 09(t Pavement _. _. .... I ti APPRUVED by die UDan. Shallow Concentrated Flmv Time ''.Source Community y Dt,vela met � 0 Developmarleent rtC7 art 0' 9 m.nt SCS Velocity Grapp as published in 'Third Virg;nia Erosion and : Date iii Ca ^s` F'f'f`<2Ji 7 u "amu )- a Sediment Castrol Handbook i' PI n P V-1^ -._ d Ed Son (Plate 5-2 o age <) ....... .. <.� .___.._. ril6..y�>t+v._ 7.ay.,_._ }v`. �_,.. Nates. *_" _-_ i Not rntencied for cell-clefrr act channels .see e,hanrre7flowcatculation - see 2) Calculate a separate To f:�, eachmixt couRi Randition altar the flowpath 9.. 9 X>a 367.22 Enter Length offin,n ft 408 Enter Slo Poor ,0Cur pe ( ) _ ... 1.88 Result To(minutes) 1minutes IF UNPAVED 1.47 Result TcI ' minute. IF PAVED .. ._. Channel Flow Time SChat rpi, _. Cru ource Ku... ch C hat as maxified in VOOT Drainage ...Notes F. ge Manual (Fug. 1.x1.2 1 e - on Page 1 14) . _. " 1) For small drainage basin: t2 For concrete channels u3e02'Tc 000 Enter Lergth of Fkmv (I) _ 1.00 Enter Height of most remote oink along flow path abrne outlet 9 P 9 Pa O.00 Result Teminutes t ) :PIpe Flow Time .Assumes 10 $'s celoct". Y • in a fe 0.00 Enter Length of Flow in Pipe (ft) ; 0.00 Result Tc (minutes) 'Rainfall Intensity (Albeirlarle County, Virginia) . .... .... Return Duration intens ry 21��3..�� Period mins. in/hr` ... _-. 2 10.7 ' 3.8 _ _...... r ;... _._. 5 10.1 47 10 10.1 52 25 10.1 5.9 _. 50 ...10,1 6.4 _ _... _.. _... _.. 100 ....10.1 6.9... .... __..... _ _.. Acceptable values fordurabon are behneen 5 and 60 minutes Use values outside this range at nsk. - Sedintent Basin design rsesro erersn drainage area (acres} 3 64 oes sir+ v ca wantx _ basin volumes_: (using T oortour lntenels) us -s aroap rray.> Sisseton ffn contour area (a) wlume(cy) 664 .. 0 685 1805,. ' ... r{,; _'_ - �. r T -r -roses , caccr .. 686 4744 _... ,� -.-_-rocwaraimw ._ ,.. 687� 4702 fl? 4 m rovi ,.. - 668 5286 'u7 689 5$9 5 _.. 890 -. s53o _.. p.. '.vet storage _.. wet storage required (ey) (67"DA) I ;a ,3,9'. -design high water 691,5 desrateong orifice elevation (ft) _.... ........ 687.5 top of data (ft) .692 5 -� '. vat# storage proudtd at this elevation (cy) 400.0 top with of dam (B) ', 10,0 available volume before Clesunout toy) (33*DP,) -'.'ai boHont of basin (ft) 6$4.0 ' cleanout elon(tt) ...._ _..... si ... 686.2,. _..... _._. approx, bell= dimensions .._. 55.5'x60,6 distance from cleaned to orifice(ft)(>.1'}... ,,, _. upstream face slope:.. _._.21 .. _ - downstream face slope: ... . 3:1 !dry storage:.... _ dry storage required (cy) (6'7"DA) baffles:... `. yes , principle spillway crest (ftl 6'90.01 ;length of flow, L(fk)69.32 ,dry storage pud4ded at this elevatloin (cy).. 529 5 _ a eMEcta width, We ht) :. C M1 diameter of dewatering orifice (in) 50. - (battles required if L/Wero eq ) . 27 ; diameter of flexible tubing (in) (onfice+2) _.. so ... odfi.r. .. ._ _yes ',.. runoff.I. depth of wale. at spillway crest (ft) .. Co 'C (use 0,45 for bare earth). ........ _... 063 _..... slope of upstream face (Z 1) _ 2 'tc (mm) ... .... _. ... - 101, slope of barrel (Sb) '. 0.018 112yr 3.8. _,, . Q 2yr I IeVh of banes in saturated zone (Ls) [2', N 1I25yr 5,9 Q25yr -_. - __. number Sorters required _._.. 3 _. _ _... dimension of collars. _. 2.5' x 2.5 ,principle spillway. .__ _ _... near. awilabls head (ft) - - `<n emergency spliway` - _._.. ...,Yes diameter user (in) 48 _.. required capacity (025 -QP) (cis) A spillway Capacity, Qp (Cts) _ bottom Wolff (R) _... 6 diameter trash rack (in) hltA slope of exit channel (ft/ft) 0.33 barrel length (ft) -.. _ 54 minimun angth of exit channel (ft) - NVA head on barrel through embankment (ft) llf) crest of spillway (ft) 691 1000.0 900,0 800.0 70D.o 600.0 500.0 400.0 300.0 200.0 100.0 Sediment Basin #1 0.0 t---1 Ls. +-:T_ I-!_2 _�Lj u L i- 17 _.:.t.:<1 683 684 685 686 687 688 689 690 691 ELEVATION on...Y..., APPBOVE C by She Albernarle County Community Developntsttt Department Date TERRA CONCEPTS, P.C. CIVIL ENGINEERS i Al DSCAI'I: ARCHITECTS 224COUR1 SQUARE UJARL(YrTf1SVf1,l,E, *,IRGNIA-22902 Pbt, 4P4 2354c05 FA Y 41-295-2103 P Li" No. 85326 OF Steven W. Edwards tic. No, 0031 SCALEAS S;EICDWN ISSU D: 11/06/06 DRAWN BY: PrloS ©. 17.6-06, {1QI"i`Jt+S-:3LiBaVdS'S"Pt1Z L 12-144Tc, 9833 COMMENTS 2. 12-21 -06, ACSA M1 MEN b 3, t2 -77-Y}(, ('C)I'.^r' 15' K't )'vilstJitti fir= At h®hte reserved Na Rprt of the neteM1el protactod by tM1ls �pV uotthese ears nueybe"apraduoodd ezpresae pens C- anped of utllhotl In any (orpp or by any rtreans, aleatmnio or mechanical, IndM1dGt9 photoeopying, acanrMg, nr Fry pry other means of"8tri Yi-TTo. C,., ryaYe u(wrlrien permlasion P. %iN1o, these p ons may not b 'g d t ih' d parry w httout IlrttwrtYen authorl,a' n int Te ra Eancepta, P.C. e TERRA CONCEPTS, P,C. SHEET 2z OF 27 i �i *ems } H eP 2: t� r••d W �a �y �i P Li" No. 85326 OF Steven W. Edwards tic. No, 0031 SCALEAS S;EICDWN ISSU D: 11/06/06 DRAWN BY: PrloS ©. 17.6-06, {1QI"i`Jt+S-:3LiBaVdS'S"Pt1Z L 12-144Tc, 9833 COMMENTS 2. 12-21 -06, ACSA M1 MEN b 3, t2 -77-Y}(, ('C)I'.^r' 15' K't )'vilstJitti fir= At h®hte reserved Na Rprt of the neteM1el protactod by tM1ls �pV uotthese ears nueybe"apraduoodd ezpresae pens C- anped of utllhotl In any (orpp or by any rtreans, aleatmnio or mechanical, IndM1dGt9 photoeopying, acanrMg, nr Fry pry other means of"8tri Yi-TTo. C,., ryaYe u(wrlrien permlasion P. %iN1o, these p ons may not b 'g d t ih' d parry w httout IlrttwrtYen authorl,a' n int Te ra Eancepta, P.C. e TERRA CONCEPTS, P,C. SHEET 2z OF 27 I - - -- - - - - -- - - -- _ -- 895- r.� - PARROTCREEK _ --- _ SS -t----_77 ` s ,7 -� - -- }- ss - - - Ss \ - SS �1 lss �-� ss --\ --,� --�- ss - - -- ss \ - _- SS\-- (SS - \ / \ - S3-- SSS-- ; � _- - = -�'e �.- "_ - �� �- -_%- `_ - - PERMANENT - - \ - - - - \ - - - _ � = - - - -\- - � - _ - - - PE __ ___ _ - - \ - _ - _ _ _ \ _� "� - RIP RAP VET - _ _- __ ���- RIP RAP VEL \ - ,% ! \ SPREADER \ -' \ \ _ _ \ J _ �� \ �� \ SPREADER - \ \ \ -- CRITICAL EROSI _ \ \/ \,.� \ N�y�ce \ \ _ -_ _ -fieo- LIMITS OF ,_. _ s, _ \ \ _.'. V DITURBANCE \ APPROXIMATE LIMITS O� --- - -� - - _ _ �; - -- \ .(APPROX 229 AC) �� TO TREE SAVED AREA \ \ .P3 z 00' STREAM BUFFER,� \ LIMITS OF ___ ----- �DIyTURBANCE \ -6�PF y \ / \ �\\.�r '�-'��- \\\/\- �. .i _ \ 6 \ I / \ -- r -\ \ \ /\ (APPROX- 2.29AC� \ \ .. fi \a>�.. ` \ _ _-'_- \,/� \ \e-\ \ \ /\ \ \ . 'T V \ _ n TIP 'Al-_- \ PTEMPOROTE HARY T E \ O --� - g ��\) - 1 TMP 56A2-1-29 \ I I 1 /� \ \ -_6�'6 ir5iv. N�zor%- 680- - ' \T P 56A2-1-29 _ \ III (`/oi•E�rION.\\- - _ _ - _-e6o-� 15" RCP * t�9a% - - N +-0LFermerly \ I \ TEMPORARY - o� INV: OUT 591:00\ L_-- - - N _or- Formerly \ I I I I ` \ �- X \ I SILT FENCE g- X \ DAYLIGHT RCP CROZE�`SHOPPING 1 ` TYP / X ' -tNV. IN 582.00? - - \ CROZETSHOPPING \ I �� TOCONCRErE - - - \ \ I sP 66� \ iNv.OUT sal6o CENTER, LLC I \ \ - \ I 1 EMERGEN(! - A CENTER, LLC V I I & \ / b \ 9-• - - N ,�,� - DAYLIGHT RC - \ -B. 2813 PG. 749 I / - 1 SPILLWAN �. f._ \ B. 2813 PG. 749 I / E E, TYP. \ es\ Zoned: \ \ I I 1 \ / \ x -- f _ \ �m9'\ Zoned: \ \ 1 1 \ % �� `` G i G x \ t EMERGENCYTE\ - - \Comp. Plan 6T 6 Urban Core �/ / - SAFETY PFNcE-W lk \Comp. Plan' CT 6 Urban Core I 1 NL�W - I HT - - / SPILLWAY \ (Dowrtown) \ I I I I ~ _� S�GN�HAT READS(" _ DOWrItOWn \ I IECE RY TO - ( FLE - DANGER, QUICK ` ( ) Use; Business or -Retailing ( �� ` PORARY- --I- WALLS TYP �- SAND,IOO NOT EN ER'"- UBe. Business O( Retailing ( �� \ TEMP Y - / (2' DEPTH) V \ / • _ \ \ v�DIIVK€E #1 OD--N� --t. 3 i ay --- „r �� - _ M -_--'� V \\ - - Cv / MAN6N94.5 COVER > _S ;BAFFLE - v6en-\�sSi MSTALRMANENT aSIGN lGiTEFJ�A2T RE R"g1P WATER INLET --__-- -- _ STRUCTURE FOR USE \.SAND DO_NOTENIV� DURINGSEDIMEN'f` �y. \ / \ TENFt -�D-- PROTECTION 11 N \ / \ �.. BASIN DRAINAG`�-�g�g-_-- �f HOLD _z O N -� �/ `., \ TS // f i y�°'S ✓, ` �/ 7l \ \ RIM-_ _ _ - �.., ,. 0145 ` \ \ �! -_., _figs '� �-� �' ff .\ � \ _ _ '�• ..f �� .�- �\ ___. ,__ \ - �•eoy �.� \. / --- _ - '". '�•' SYC RIP, - ,-___-. _ \•...�_l, - _ _ _ - \ P $016 TY - I IF -��P DROP • BY LAS Ij" PROTECTION � ;�SEDIME -tAP -.., `, B�- / -�' S .�- -� TEMPORARY f ./ / / \ \ SAIL ... _ "M / ' REMOVE 15" PIPE FRO I RT TO I �� _ - / / GREAT VALUE \ STM RE D SE AT EW / / _ / K _ DI -7 TOP / P. ._ - DIVER$t0 -- -- C TRA T 1 `�� 7 - E TO SIN - / RIM 700.133 _-- - O DIKE#3� ` S OSS SITE. SHOPPING ---- TEMPORARY 6' PLUG I TMP 56A2-1-3TO COMPLETE UAINLI pKRINlA 6HIL 3 TO OUIMDDTEION1gS�GGURS pi U LYIIQ S TIO (I II --q q -1- 3 P 56A2 TMI 3HASNoCENTER CNE Now or Formerly CONSTRUCTION - w or Formerly GEORGE LEISURE & GEORGE LEISURE &T SI; MARKETTA LEISURE MARKETTA LEISURE D.B. 2959 PG. 399 GREAT VALUE D.B. 2959 PG. 399 Zoned: C-1 -Now or Formerly Comp Plan: CT 5 NG Now or Fmerl Com Plan: CT 5 TY A K HOLDINGS, Urban Center CENTER Urban Centerc TMP 56A2-1-31 Zoned: C-1 SHOPPITMP 56A2-31 D LLC Use: Urban ONTIV IUse: Urban D�B.07�P18DIB.W�Pp. �18I n - i zpn +iQ�ar:6 Gp. rmp. da6 I Urban Corel I urban cprel (Downtown) I (111 ( - - (Downtown) LIMITS I ® i Use: Urban � I � -� ITsoF Use: Urban I DI PROXI 2.29 AC) �( d4� vvw�,; �� , � // � ��rl `t- I����I���I I I I I I I -� � I , � I vvvv� /// •�� CE ��r�� � I d LIMITS OFDITU (APPROX. `�. (APPROX. 2.29 AC) A I - 904 LIMITS OF- -. DISTURBANCE III I (APPROX.2.29AC) US JOINER I P 1 I �/ �� I'/ I US JOINER I _ /) 4 I I� SITE I 1 TO I ' SITE \( I CURRENTLY UNDER I I " TO / /I,•�'t III I / I PB 3 O® III CURRENTLY UNDER I CONSTRUCT��IQN J CONSTRUCTION /' CONSTRUCTION ENTRANCE (rFl /\ r I I I I I /\ O / �r I I I I I L 70 L 702 --- STAGING � \ � - - - r -I - I I \ /\ � \ \ / ,�` \ � r � - I / , L -AREA __j/ I \. t - f - e I .� \ / .� - - SP 704? I 704 • I I\ _ �>ow ''`>� w�_- - - - - - - - - OHE 0K - - - OHE -- - - - - - OHE - -THREE NOTCH ROAD (S.R. 240)- / iVA X STAGE � CONSTRUCTION SEOUENCE: STAGE 1 CONSTRUCTION SEQUENCE: STAGE 2 CONSTRUCTION SEQUENCE: BASIC INFORMATION: 1. INSTALL CONSTRUCTION ENTRANCE, 9. ONCE ROUGH GRADES ARE ESTABLISHED, INSTALL STORM SEWER. ADD 18, FLUSH CLEAN COMPLETE STORM SYSTEM PRIOR TO DEMOBILIZING AND �1 INLET PROTE°:,"ION AT THESE LOCATIONS. INSTALL TEMPORARY INLET FINAL INSPECTION. 2. INSTALL PERIMETER SILT FENCE AND TREE PROTECTION. BASIN AND DIV=RSION DIKE #3. z 19. USE DUST CONTROL AS NECESSARY DURING CONSTRUCTION. 3. EXCAVATE EXISTING POND TO FULL SIZE FOR USE AS SEDIMENT TRAP 10. INSTALL ALL PHASE 1 WATER, SEWER, GAS, ELECTRIC AND OTHER UTILITY AND FUTURE STORMWATER POND. INSTALL NEW RISER STRUCTURE, MAINS AND SERVICE LATERALS. MARK ENDS WITH WITNESS POSTS. 20. ALL SEEDING IS TEMPORARY UNLESS OTHERWISE NOTED ON THE PLANS. OUTFALL PIPE, EMERGENCY SPILLWAY, OUTLET CHANNEL AND LEVEL W SPREADER 11. PLACE TEMPORARY SEEDING AND STRAW OVER PHASE 2 PORTION OF d SITE. 4. INSTALL DIVERSION DIKE. CLEAR AND GRUB ACCESSWAY TO REAR OF SITE. SEE INITIAL LIMITS OF CLEARING AND GRADING. 12. ESTABUSH FINISH GRADES FOR PHASE 1 AREA. INSTALL PARKING AREA Lr, b STONE BASE AND PERIMETER CURBING WHILE MAINTAINING INLET 5. PERFORM ROUGH GRADING AS SHOWN IN STAGE 1 DIAGRAM. PROTECTION. 8. MAT, SEED AND MULCH SLOPES ON NORTHERN PORTION OF SITE TO 13. AS THE BANK IS COMPLETED, INSTALL CURB, SIDEWALKS, ETC. BEGIN STABILIZATION PROCESS, IMMEDIATELY SURROUNDING THAT AREA AND PLACE LANDSCAPING AND GROUNDCOVER IN PHASE 1 AREA PER PLANS. INSTALL ASPHALT PAVING 7. SECURE FLAT AREA FOR LAYDOWN, EQUIPMENT STORAGE, AND AS SOON AS POSSIBLE. CONTRACTOR TRAILER. ADD STONE AS SURFACE. 14. REMOVE TEMPORARY DIVERSION DIKE #1 ONCE NON -PAVED SEEDED 8, COMPLETE ROUGH GRADING OF SITE. AREAS ARE STABILIZED. 15. CONSULT REGULARLY WITH COUNTY EROSION CONTROL AGENT TO DETERMINE WHEN CERTAIN AREAS OF SITE QUALIFY AS "STABILIZED." DECOMMISSION ES&C MEASURES AS PERMITTED. ENSURE THAT ADEQUATE STABILIZATION PRIOR TO DEMOBILIZING SITE -WIDE IS ACCOMPLISHED. 15 8G3 - BRADDOCK CLAY LOAM, 7 TO 15 PERCENT SLOPES, SEVERELY ERODED 81B -THURMONT LOAM, 2 TO 7 PERCENT SLOPES 88 - UDORTHENTS, LOAMY STAGE 2 1XI19", Owl ODC DUSTCONTROL 3.39 VA E&SC STD. OB/M SOIL STABILIZATION BLANKETS & MATTING 3.36 VA E&SC STD. CE TEMP. STONE CONSTRUCTION ENTRANCE 3.02 VA E&SC STD. CR9 CONSTRUCTION ROAD STABILIZATION 3.03 VA E&SC STD. SP SILT FENCE 3.05 VA E&SC STD. IP STORM DRAIN INLET PROTECTION 3.07 VA E&SC STD. DD TEMPORARY DIVERSION DIKE 3.09 VA E&SC STD. ST TEMPORARY SEDIMENT TRAP 3.13 VA E&SC STD. OP OUTLET PROTECTION 3.18 VA E&SC STD. TO TOPSOILING 3.30 VA E&SC STD. PS PERMANENT SEEDING 3.32 VA E&SC STD. OTS TEMPORARY SEEDING 3.31 VA E&SC STD. MU MULCHING 3.35 VA E&SC STD. A LBEMA R LE COUNTY ENGINEERING GENERAL CONSTRUCTION NOTES FOR E&SC PLANS: TH RITY MU BE NOTIFIED R RE-CCONSTRUCTION CONFERENCE ONE EK PRIOR TO THE COMMENCEMENT OF 1 THE PLAN APPROVING AUTHORITY U 0 ST ONE WEEK PRIG TO THE P 0 WE LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. ' 2. ALL EROSION AND gEDIMENT CONTROL MEAS��JJRES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSIONAND SEDIMENT CONTROLHANDSOON AND VIRGINIA REGULATIONS VR 625-02.0 EROSION AND SEDIMENT CONTROL REGULATIONS. 3. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE 70 BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING. 4. A COPY OF THE APPROVED EROSION AND SEDIMENT CC 47ROLgPLLAN SHALL BE MAINTAINED ON THE SITE ATALLTIMES. 5. AASTBTAOREAS) THE CONTRACTOR SHALL SUBMIITI A SUP-LEMENTABY ERO IS ON CONTROFPLAN TOETHE OWNEBLFOR REVIEW M1DL PROVAL BY THE PLBAON APPROVING AUTHORITY. 6. THE CONTRACTOR ISRESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING AUTHORITY. 7. ALL DISTURBED IS URBE UNTILEAAS ARE S AB AIN TO APPROV ED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND DISTURBING ACTIVITIES AND DURING SITE 8. DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FILTERING DEVICE. 9. REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF4THE EROSION CONTROL DEVIC�SHALL BE MADE MMEDIATELY RAINFALL EVENT. ANY NECESSARY 10. ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED, DESIGNATED BORROW AREA. 11. ALL WASTE MATERIALS SHALL BE TAKEN TO AN APPROVED WASTE AREA. EARTH FILL SHALL BE INERT MATERIALS ONLY, FREE OF ROOTS, STUMPS, WOOD, RUBBISH, AND OTHER DEBRIS, 12. BORROW OR WASTE AREAS ARE TO BE RECLAIMED WITHIN 7 DAYS OF COMPLETION PER ZONING ORDINANCE SECTION 5.1,28, 13. ALL INERT MATERIALS SHALL BE TRANSPORTED IN COMPLIANCE WITH SECTION 13,301 OF THE CODE OF ALBEMARLE. 14, BORROW, FILL OR WASTE ACTIVITY INVOLVING INDUSTRIAL -TYPE POWER EQUIPMENT SHALL BE LIMITED TO THE HOURS OF 7:OOAM TO 9:00PM. 15. PHYSICAAL DLAMAGE TO AADDJACENTTLLASND AND IMPROVVEMENTS AND SAFE ANY PUBELICASTREET BECAUSE OSLIDESFSINKING MINIMIZE ANY HAZARD TO PERSONS, 16. ALLEROSION CONTROLLL MEASURES REQUIRREED BINSTALL THIS ZARREGARDLESS OF THE CONVERT ANY PERMANENT BUIIOLDING OR OTMANAGEMENT ER PORTION FACILITIES F THE PROPERR,ryAPPLICABLE SHALL BE TEMPORARY SEEDINGAND MULCHING, SEEDIN IS TO BEAT 75 LBS/ACRE AND IN THE MONTH OF SEPTEMBER TO FEBRUARY 17. TC CONSIST STABILIZATION MIX F ANNUAL RYEGRASS AND CEREAL WINTER RYE OR IN MARCH AND APRIL TO CONSIST OF ANNUAL RYE OR MAY THROUGH AUGUST TO CONSIST OF GERMAN MILLET. STRAW MULCH IS TO BE APPLIED AT 80LBS/1 F. AL tERNATIVES ARE SUBJECT TO APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR, PERMANENT STABIL I NS APPIL 18 S L EINCORAPPLI DA �8 OT TOP SRALAENND CO S�S ARE SUIL, FERTIB ECT)T 31 RTDBDTHEUEANDO-5%PIGGGN CO�NTRRYEG T I LB AC AN T OF8PIEC RREN DUCKY LUEGERASS. ETRTAOW�MU MULCH 19. IMMEDIIATELY SILT MRAAPSUARE TO BE CLEANED WHEN 60%OF THE WWET TOR EACH VOLUME IANY FILLDEDD N H SEDIMENT• ATO SEEDED AREAS ARE TO BE RESEEDEDEWHEN NECESSARY ND REPAIRED .ACHIEVE A GOOD STAND OF GRASS. SILT FENCE AND DIVERSION DYKES WHICH ARE COLLECTING SEDIMENT TO HALF THEIR HEIGHT MUST BE CLEANED Y. 20. WHEN MEASURES ARE NO LONGER NEEDED SUBJECTtto APPROARE VAL AALL BV THE COUNTY EROSION CONTROL INSPECTOR.�ILIZATION, TERRA CONCEPTS; E.C. CIVIL ENGINEERS LANDSCAPE ARCHITECTS 224 COURT SQUARE CHARLOTTESVILLE, VIRGINIA 22902 PH. 434-295.4005 FAX 434.295-2103 P4 I\ O �1 �T4 15 8G3 - BRADDOCK CLAY LOAM, 7 TO 15 PERCENT SLOPES, SEVERELY ERODED 81B -THURMONT LOAM, 2 TO 7 PERCENT SLOPES 88 - UDORTHENTS, LOAMY STAGE 2 1XI19", Owl ODC DUSTCONTROL 3.39 VA E&SC STD. OB/M SOIL STABILIZATION BLANKETS & MATTING 3.36 VA E&SC STD. CE TEMP. STONE CONSTRUCTION ENTRANCE 3.02 VA E&SC STD. CR9 CONSTRUCTION ROAD STABILIZATION 3.03 VA E&SC STD. SP SILT FENCE 3.05 VA E&SC STD. IP STORM DRAIN INLET PROTECTION 3.07 VA E&SC STD. DD TEMPORARY DIVERSION DIKE 3.09 VA E&SC STD. ST TEMPORARY SEDIMENT TRAP 3.13 VA E&SC STD. OP OUTLET PROTECTION 3.18 VA E&SC STD. TO TOPSOILING 3.30 VA E&SC STD. PS PERMANENT SEEDING 3.32 VA E&SC STD. OTS TEMPORARY SEEDING 3.31 VA E&SC STD. MU MULCHING 3.35 VA E&SC STD. A LBEMA R LE COUNTY ENGINEERING GENERAL CONSTRUCTION NOTES FOR E&SC PLANS: TH RITY MU BE NOTIFIED R RE-CCONSTRUCTION CONFERENCE ONE EK PRIOR TO THE COMMENCEMENT OF 1 THE PLAN APPROVING AUTHORITY U 0 ST ONE WEEK PRIG TO THE P 0 WE LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. ' 2. ALL EROSION AND gEDIMENT CONTROL MEAS��JJRES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSIONAND SEDIMENT CONTROLHANDSOON AND VIRGINIA REGULATIONS VR 625-02.0 EROSION AND SEDIMENT CONTROL REGULATIONS. 3. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE 70 BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING. 4. A COPY OF THE APPROVED EROSION AND SEDIMENT CC 47ROLgPLLAN SHALL BE MAINTAINED ON THE SITE ATALLTIMES. 5. AASTBTAOREAS) THE CONTRACTOR SHALL SUBMIITI A SUP-LEMENTABY ERO IS ON CONTROFPLAN TOETHE OWNEBLFOR REVIEW M1DL PROVAL BY THE PLBAON APPROVING AUTHORITY. 6. THE CONTRACTOR ISRESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING AUTHORITY. 7. ALL DISTURBED IS URBE UNTILEAAS ARE S AB AIN TO APPROV ED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND DISTURBING ACTIVITIES AND DURING SITE 8. DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FILTERING DEVICE. 9. REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF4THE EROSION CONTROL DEVIC�SHALL BE MADE MMEDIATELY RAINFALL EVENT. ANY NECESSARY 10. ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED, DESIGNATED BORROW AREA. 11. ALL WASTE MATERIALS SHALL BE TAKEN TO AN APPROVED WASTE AREA. EARTH FILL SHALL BE INERT MATERIALS ONLY, FREE OF ROOTS, STUMPS, WOOD, RUBBISH, AND OTHER DEBRIS, 12. BORROW OR WASTE AREAS ARE TO BE RECLAIMED WITHIN 7 DAYS OF COMPLETION PER ZONING ORDINANCE SECTION 5.1,28, 13. ALL INERT MATERIALS SHALL BE TRANSPORTED IN COMPLIANCE WITH SECTION 13,301 OF THE CODE OF ALBEMARLE. 14, BORROW, FILL OR WASTE ACTIVITY INVOLVING INDUSTRIAL -TYPE POWER EQUIPMENT SHALL BE LIMITED TO THE HOURS OF 7:OOAM TO 9:00PM. 15. PHYSICAAL DLAMAGE TO AADDJACENTTLLASND AND IMPROVVEMENTS AND SAFE ANY PUBELICASTREET BECAUSE OSLIDESFSINKING MINIMIZE ANY HAZARD TO PERSONS, 16. ALLEROSION CONTROLLL MEASURES REQUIRREED BINSTALL THIS ZARREGARDLESS OF THE CONVERT ANY PERMANENT BUIIOLDING OR OTMANAGEMENT ER PORTION FACILITIES F THE PROPERR,ryAPPLICABLE SHALL BE TEMPORARY SEEDINGAND MULCHING, SEEDIN IS TO BEAT 75 LBS/ACRE AND IN THE MONTH OF SEPTEMBER TO FEBRUARY 17. TC CONSIST STABILIZATION MIX F ANNUAL RYEGRASS AND CEREAL WINTER RYE OR IN MARCH AND APRIL TO CONSIST OF ANNUAL RYE OR MAY THROUGH AUGUST TO CONSIST OF GERMAN MILLET. STRAW MULCH IS TO BE APPLIED AT 80LBS/1 F. AL tERNATIVES ARE SUBJECT TO APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR, PERMANENT STABIL I NS APPIL 18 S L EINCORAPPLI DA �8 OT TOP SRALAENND CO S�S ARE SUIL, FERTIB ECT)T 31 RTDBDTHEUEANDO-5%PIGGGN CO�NTRRYEG T I LB AC AN T OF8PIEC RREN DUCKY LUEGERASS. ETRTAOW�MU MULCH 19. IMMEDIIATELY SILT MRAAPSUARE TO BE CLEANED WHEN 60%OF THE WWET TOR EACH VOLUME IANY FILLDEDD N H SEDIMENT• ATO SEEDED AREAS ARE TO BE RESEEDEDEWHEN NECESSARY ND REPAIRED .ACHIEVE A GOOD STAND OF GRASS. SILT FENCE AND DIVERSION DYKES WHICH ARE COLLECTING SEDIMENT TO HALF THEIR HEIGHT MUST BE CLEANED Y. 20. WHEN MEASURES ARE NO LONGER NEEDED SUBJECTtto APPROARE VAL AALL BV THE COUNTY EROSION CONTROL INSPECTOR.�ILIZATION, TERRA CONCEPTS; E.C. CIVIL ENGINEERS LANDSCAPE ARCHITECTS 224 COURT SQUARE CHARLOTTESVILLE, VIRGINIA 22902 PH. 434-295.4005 FAX 434.295-2103 P4 U O �1 �T4 �n z ® W d Lr, b f �Iaa N�. Steven W. Edwards Uu No.0931 SCALE: V = 30' ISSUED: 11/06/06 DRAWN BY: MOS REVISIONS: 0, 11-6.06, INITIAL SUBMITTAL 1. 12-14-K ARB COMMENTS 2. 12-21.06, ACSA COMMENTS 3. 12-27-06, COUNTY COMMENTS All rlghts reserved, No ped W the metedel pre -Id by this cepyrghl (pleas, aea. assign, acibas pr d.t evpressetl on these plans) may bs -, cheaged 11 miliz tl In aaY form or by sly means, sbdmnic or mecheniral, Including ph-pying, scanning, orbs any other means of relrierel-y ydlheut nrlibn P.m w I- Terre Obn pk. PC. Also, these pleas may not be assigned t, a thbd perry Mhpet fi,,g nrNen earth- bn M Tees C -PI, P.C. ® TERRA CONCEPTS, P.C. SHEET OF 27 PARROT CREEK �F- SS SS SsSs ERMANE Ss- - - - - - - - - - L EL SPREADER > I FrsOF DISTURBANCE CRITICAL EROSION A EA (APPROX. 2.52 -AG) III[AlE, 11 �ITS-0 F -LIM TREE FENCE, TYP,(� "vm -IONJYP. VIE 4 /PROTECT 1 7 a 15'RGA*"6%- - 00 T 81.00 TEMPORARYT NC IVERSION "'113 Ti- - IKE #4 > E A j- ETY FE Wt IGN- -THAT READ -Q=K S_AND RAISE CO ETE- RETAIN � AX. X. SOILS- -100� CONSTRUCTION SOIL I T ENTRANCE#2 GREAT VALUE --DIVERSI 0 30-I[L # SHOPPING 3 r CENTER AF11- ITS OF DISTURBANCE (APPROX 152 AC) TMP 56A2-1-33 I I Iii NOW or Formerly 'g, IGEORGE LEISURE & (II Ill� K TA LE! SURE �TEB NN59 VG 399 IF O�ojM� �y I Zoned: C-1 LIMITSOF D�MARK HOLDINIG L Comp. Plan: CT 5 LILL, Z�G)�2 52 AC) D.B. 3079 PG. 718 Urban Center Use: Urban I1-� rP a ,r p,� fo, rn' S .761 L a -L-u- -U " gbnt L 0170A IF \- TS OF LIMITS ,,PPROX2.52AC) US JOINER SITE CURRENTLY UNDER CONSTRUCTION L 702 CIA I, F -If - - - QHF - - OHE- HREp ENO 'HD RoADj*g 240) STAGE Q�� STAGE 3 CONSTRUCTION SEQUENCE: STAGE 4 CONSTRUCTION SEQUENCE: BASIC INFORMATION: 1. INSTALL CONSTRUCTION ENTRANCE #2. 10, ONCE WALLS ARE COMPLETE AND ROUGH GRADES ARE ESTABLISHED, 21. FLUSH CLEAN COMPLETE STORM SYSTEM PRIOR TO DEMOBILIZING AND m c INSTALL ALL PHASE 2 WATER, SEWER, GAS, ELECTRIC AND OTHER UTILITY FINAL INSPECTION. 2. INSTALL PERIMETER SILT FENCE AND TREE PROTECTION. MAINS AND SERVICE LATERAL$. MARK ENDS WITH WITNESS POSTS. RPWNE-NTWF-RA1F-- L LSPREADER z 0 LUMITS-OF 22. USE DUST CONTROL AS NECESSARY DURING CONSTRUCTION. 3. INSTALL RETAINING WALL AROUND NORTHERN AND WESTERN 11. ESTABLISH FINISH GRADES FOR PHASE 2 AREA. INSTALL PARKING AREA PERIMETER OF SITE AND FILL SITE TO ROUGH FINISH GRADE. STONE BASE AND PERIMETER CURBING WHILE MAINTAING INLET 23. ALL SEEDING IS TEMPORARY UNLESS OTHERWISE NOTED BELOW ON THE PROTECTION. PLANS. 4. BASEMENT WALLS OF OFFICE BUILDING CONCURRENTLY WITH > INSTALL NSTALLATION OF RETAINING WALL. BASEMENT WALLS WILL BE REQUIRED 12. REMOVE REMAINDER OF TEMPORARY DIVERSION DIKES, TO SUPPORT POND SLOPE AND FINISHED GROUND AROUND BUILDING. 13. AS BUILDINGS ARE COMPLETED, INSTALL CURB, SIDEWALKS, ETC. S. CLEAR AND GRUB REAR SLOPE AREA. BEGIN FILL SLOPE AT REAR OF SITE IMMEDIATELY SURROUNDING THAT AREA AND PLACE LANDSCAPING AND INSTALLING DIVERSION SIKE 4-4 AT TOP OF SLOPE. SEE LIMITS OF GROUNDCOVER PER PLANS. INSTALL ASPHALT PAVING AS SOON AS CLEARING AND GRADING. POSSIBLE. INV. IN 5 DO-- INV: OUT 1.00 6. MAT SEED AND MULCH SLOPES AT REAR OF SITE TO BEGIN STABILIZATION 14, CONSULT REGULARLY WITH COUNTY EROSION CONTROL AGENT TO DAY -CON PROCESS. DETERMINE WHEN CERTAIN AREAS OF SITE QUALIFY AS "STABILIZED," =nLE COVER DECOMMISSION ES&C MEASURES AS PERMITTED. ENSURE THAT 7. SECURE FLAT AREA FOR LAYDOWN, EQUIPMENT STORAGE, AND ADEQUATE STABILIZATION PRIOR TO DEMOBILIZING SITE -WIDE IS CONTRACTOR TRAILER. ADD STONE AS SURFACE. ACCOMPLISHED. 8. COMPLETE ROUGH GRADING OF PHASE 2 PORTION OF SITE. 9. REMOVE DIVERSION DIKE #3 AND TEMPORARY INLET BASIN. _--}- 016) �Imp�m .0 80 - BRADDOCK CLAY LOAM, 7 TO 16 PERCENT SLOPES, SEVERELY ERODED BIB THURMONT LOAM, 2 TO 7 PERCENT SLOPES 88 LIDORTHENTS, LOAMY 0 all, m c V fm 016) �Imp�m .0 80 - BRADDOCK CLAY LOAM, 7 TO 16 PERCENT SLOPES, SEVERELY ERODED BIB THURMONT LOAM, 2 TO 7 PERCENT SLOPES 88 LIDORTHENTS, LOAMY GREAT VALUE 4 SHOPPING CENTER TMP 56A2-1-33 r II Now or Formerly I GEORGE LEISURE & & MARKETTA LEISURE "6E I I D.B. 2959 PG. 399 �Cl 11TY A K O DING Zoned: C-1 I k- !mLC j Comp. Plan: CT 5 D.B. 3079 PG 718 Urban Center Zoned: C-1 I Use: Urban 'P�yM p. [a T 6, II rb LIWITS OF ft -K DITURBANCE IT 70A US JOINER SITE 0 CURRENTLY UNDER CONSTRUCTION L 702 l J J 7Z- 70 STAGE IS )NININ ODC DUSTCONTROL 3.39 VA E&SC STD. SOIL STABILIZATION BLANKETS & MATTING 3.36 VA E&SC STD. CE TEMP. STONE CONSTRUCTION ENTRANCE 3.02 VA E&SC STD. CRS CONSTRUCTION ROAD STABILIZATION 3.03 VA E&SC STD. SF SILT FENCE 3.05 VA E&SC STD, OIP STORM DRAIN INLET PROTECTION 3.07 VA E&SC STD. DD TEMPORARY DIVERSION DIKE 3.09 VA E&SC STD. ST TEMPORARY SEDIMENT TRAP 3.13 VA E&SC STD. OP OUTLET PROTECTION 3.18 VA E&SC STD. TO TOPSOILING 3.30 VA E&SC STD. PERMANENT SEEDING 3.32 VA E&SC STD. TEMPORARY SEEDING 3.31 VA E&SC STD. MULCHING 3.35 VA E&SC STD. 11 , ), , 14133010 91 t1110"1101 00041011M Oil N-1119111901FIA-1 CM IM, I THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. 2. ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CONSTRUCTED AND MAINTAINE IMUM STANDARDS AND SPECIFICATIONS OF THE S AND N DACCOROGNMINSE IMENT CONTROL REGULAT DNS. VIRGINIA ERO ION AND SEDIMENT CONTROL HANDBOOK VIRGI A REGULATIONS VR 625-02-00 EROSION N 1) 3. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO IE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING. 4. A COPY OF THE APPROVED EROSION AND SEDIMENT CONTFOL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES. S. PRIOR TO COMMENCING LAND DISTU ING ACTIVITIES IN AREAS OTHEEROSION THAN IND CATED PLAN AN DIN BUTNO IMTED To OF SITE ED 0" TOR SMLL SUBMIT A SUPPLEMENTARY EROSION COINTROL PLAN To PL D& I ON, W NTDLA OVALBYFfHE PLBAONRAPPWROVING WASTERAITRY CONTRAC THE VECLFORR E A PIPE AUTHORITY. �AS), THE 6. THE CONTRACTOR is RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATM AS DETERMINED BY THE PLAN APPROVING AUTHORITY. 7. ALL DISTURBED AREAS ARE TO DRRATION IN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND DISTURBING ACTIVITIES AND DURING SITE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED. 8. DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FILTERING DEVICE. 9. THECONTRACW TO INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY DEVICES EACH RUNOFF -PRODUCING RAINFALL EVENT, ANY NECESSARY REPAIRS ORC LAIT MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SKALL BE MADE IMMEDIATELY. 10. ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED, DESIGNATED BORROW AREA. 11. ALL OTHER ASTER E MATERIALS SHALL BE TAKEN TO AN APPROVED WASTE AREA. EARTH FILL SHALL BE INERT MATERIALS ONLY, FREE OF ROOTS, STUMPS, WOOD, RUBBISH, AND OTHDEBRIS. 12, BORROW OR WASTE AREAS ARE TO BE RECLAIMED WITHIN 7 DAYS OF COMPLETION PER ZONING ORDINANCE SECTION 5.1.28. 13. ALL INERT MATERIALS SHALL BE TRANSPORTED IN COMPLIANCE WITH SECTION 13-301 OF THE CODE OF ALBEMARLE. 14. BORROW, FILL OR WASTE ACTIVITY INVOLVING INDUSTRIAL -TYPE POWER EQUIPMENT SHALL BE LIMITED TO THE HOURS OF 7:OOAM TO 9:00PM. 15. BORROW PHYSICAL DAMAGE ILL OR WASTE ACTIVITY SHALL BE CONDUCTED IN A SAFE MANNETO THAN MAINTAINS LATERAL SUPPORT OR ORDER TO MINIMIZE ANY HAZARD TO PERSONS, DAMAGE TO ADJACENT LAND AND IMPROVEMENTS, AND DAMAGE TO ANY PUBLIC STREET BECAUSE 0 SjIDES, SINKING, OR COLLAPSE. 16, THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL MAINTAIN REMOVE OR CONVERT TO PERMANENT STORMWATER MANAGEMENT FACILITIES WHERE APPLICABLE ALL EROSION CONTROL MEASURES REQUIRED BY THIS PLAN REGARDLESS OF THE SALE OF ANY LOT, UNIT, BUILDING OR OTHER PORTION OF THE PROPERTY. 17, TEMPORARY STABILIZATION SHALL BE TEMPORARY SEEDING AND MULCHING. SEEDING IS TO BE AT 75 UBS/ACRE, AND IN THE MONTHS OF SEPTEMBER TO FEBRUARY TO CONSIST MILLET. MIX OF ANNUAL RYEGRASS APPLIED WINTER RYE OR IN MARCH AND APRIL TO APPROVED ANNUAL RYE OR MAY THROUGH AUGUST TO CONSIST OF GERMAN MILLET. STRAW MULCH IS TO BE APPLIED AT 80LBS11 OOSF. 012FINATIVES ARE SUBJECT TO APPROVED BY THE COUWy EROSION CONTROL INSPECTOR. 18. PERMANENT STABILIZATION SHALL BE LIME AND FERTILIZER PERMANENT SEEDI?GAAND MULCH. AGRICULTURAL GRADE LIMESTONE SHALL BE APPLIED AT 90LBS)IMSP, 1) INCORPORATED INTO THE TOP 4-6 INCHES OF SOIL. FERTII-12�R SHALL BE APPLIED ATN AND CONSIST OFA 10-20-10 NUTRIENT MIX. PERMANENT SEED SHALL BE APPLIED AT 180LBS/ACRE AND CONSIST ARE KENTUCAPPROVED Y 31 OR TALL FESCUE AND 0-5% PERENNIAL RYEENTUCKY BLUEGRASS. STRAW MULCH IS TO BE APPLIED AT 80U3S1100SF. ALTERNATIVES ARE SUBJECT TO APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR 19. MAINTENANCE: ALL MEASURES ARE TO BE INSPECTED WEEKLY AND AFTER EACH RAINFALL. ANY DAMAGE OR CLOGGING TO STRUCTURAL MEASURES IS TO BE REPAIR IMMEDIATELY. SILT TRAPS ARE TO BE CLEANED WHEN 50% OF THE WET STORAGE VOLUME IS FILLED WITH SEDIMENT. ALL SEEDED AREAS ARE TO BE RESEEDED WHEN 11 HAL THEIR NECESSARY TO ACHIEVE A GOOD STAND OF GRASS. SILT FENCE AND DIVERSION DYKES WHICH ARE COLLECTING SEDIMENT TO HEIGHT MUST BE CLEANED ,, REPAIRED IMMEDIATELY. 20� ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASU%S ARE TO THE DAYS OF FINAL SITE STABILIZATION, WHEN MEASURES ARE NO LONGER NEEDED, SUBJECT TO APP OVAL BY THE COUNTY EROSIONONTROL INSPECTOR. TERRA CONCEPTS, P.C. CIVIL ENGINEERS LANDSCAPE ARCHITECTS 224 COURT SQUARE CHARLOTTESVILLE, VIRGINIA 22902 P14. 4342954005 FAX 434-295-2103 PARROT CREEK A - - - - SS Ss - - - - - - -- Ss- -7 RPWNE-NTWF-RA1F-- L LSPREADER z 0 LUMITS-OF pal 14 T E, Tlyp.- DITURBAN ps --PRgTECTIONP. Is -.(APPROX - - - - - - - - �7 - :/77EROSION 10 .52 TO M CRITICAL ARE ATIIE�A > N. TYPICAL OFFICE15" FFE1s INV. IN 5 DO-- INV: OUT 1.00 REPLACEtEMP.TO DAY -CON =nLE COVER _--}- W L ROLE REPLACE TEMP.' DI -7 W/ DI -2B GREAT VALUE 4 SHOPPING CENTER TMP 56A2-1-33 r II Now or Formerly I GEORGE LEISURE & & MARKETTA LEISURE "6E I I D.B. 2959 PG. 399 �Cl 11TY A K O DING Zoned: C-1 I k- !mLC j Comp. Plan: CT 5 D.B. 3079 PG 718 Urban Center Zoned: C-1 I Use: Urban 'P�yM p. [a T 6, II rb LIWITS OF ft -K DITURBANCE IT 70A US JOINER SITE 0 CURRENTLY UNDER CONSTRUCTION L 702 l J J 7Z- 70 STAGE IS )NININ ODC DUSTCONTROL 3.39 VA E&SC STD. SOIL STABILIZATION BLANKETS & MATTING 3.36 VA E&SC STD. CE TEMP. STONE CONSTRUCTION ENTRANCE 3.02 VA E&SC STD. CRS CONSTRUCTION ROAD STABILIZATION 3.03 VA E&SC STD. SF SILT FENCE 3.05 VA E&SC STD, OIP STORM DRAIN INLET PROTECTION 3.07 VA E&SC STD. DD TEMPORARY DIVERSION DIKE 3.09 VA E&SC STD. ST TEMPORARY SEDIMENT TRAP 3.13 VA E&SC STD. OP OUTLET PROTECTION 3.18 VA E&SC STD. TO TOPSOILING 3.30 VA E&SC STD. PERMANENT SEEDING 3.32 VA E&SC STD. TEMPORARY SEEDING 3.31 VA E&SC STD. MULCHING 3.35 VA E&SC STD. 11 , ), , 14133010 91 t1110"1101 00041011M Oil N-1119111901FIA-1 CM IM, I THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. 2. ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CONSTRUCTED AND MAINTAINE IMUM STANDARDS AND SPECIFICATIONS OF THE S AND N DACCOROGNMINSE IMENT CONTROL REGULAT DNS. VIRGINIA ERO ION AND SEDIMENT CONTROL HANDBOOK VIRGI A REGULATIONS VR 625-02-00 EROSION N 1) 3. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO IE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING. 4. A COPY OF THE APPROVED EROSION AND SEDIMENT CONTFOL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES. S. PRIOR TO COMMENCING LAND DISTU ING ACTIVITIES IN AREAS OTHEEROSION THAN IND CATED PLAN AN DIN BUTNO IMTED To OF SITE ED 0" TOR SMLL SUBMIT A SUPPLEMENTARY EROSION COINTROL PLAN To PL D& I ON, W NTDLA OVALBYFfHE PLBAONRAPPWROVING WASTERAITRY CONTRAC THE VECLFORR E A PIPE AUTHORITY. �AS), THE 6. THE CONTRACTOR is RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATM AS DETERMINED BY THE PLAN APPROVING AUTHORITY. 7. ALL DISTURBED AREAS ARE TO DRRATION IN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND DISTURBING ACTIVITIES AND DURING SITE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED. 8. DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FILTERING DEVICE. 9. THECONTRACW TO INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY DEVICES EACH RUNOFF -PRODUCING RAINFALL EVENT, ANY NECESSARY REPAIRS ORC LAIT MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SKALL BE MADE IMMEDIATELY. 10. ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED, DESIGNATED BORROW AREA. 11. ALL OTHER ASTER E MATERIALS SHALL BE TAKEN TO AN APPROVED WASTE AREA. EARTH FILL SHALL BE INERT MATERIALS ONLY, FREE OF ROOTS, STUMPS, WOOD, RUBBISH, AND OTHDEBRIS. 12, BORROW OR WASTE AREAS ARE TO BE RECLAIMED WITHIN 7 DAYS OF COMPLETION PER ZONING ORDINANCE SECTION 5.1.28. 13. ALL INERT MATERIALS SHALL BE TRANSPORTED IN COMPLIANCE WITH SECTION 13-301 OF THE CODE OF ALBEMARLE. 14. BORROW, FILL OR WASTE ACTIVITY INVOLVING INDUSTRIAL -TYPE POWER EQUIPMENT SHALL BE LIMITED TO THE HOURS OF 7:OOAM TO 9:00PM. 15. BORROW PHYSICAL DAMAGE ILL OR WASTE ACTIVITY SHALL BE CONDUCTED IN A SAFE MANNETO THAN MAINTAINS LATERAL SUPPORT OR ORDER TO MINIMIZE ANY HAZARD TO PERSONS, DAMAGE TO ADJACENT LAND AND IMPROVEMENTS, AND DAMAGE TO ANY PUBLIC STREET BECAUSE 0 SjIDES, SINKING, OR COLLAPSE. 16, THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL MAINTAIN REMOVE OR CONVERT TO PERMANENT STORMWATER MANAGEMENT FACILITIES WHERE APPLICABLE ALL EROSION CONTROL MEASURES REQUIRED BY THIS PLAN REGARDLESS OF THE SALE OF ANY LOT, UNIT, BUILDING OR OTHER PORTION OF THE PROPERTY. 17, TEMPORARY STABILIZATION SHALL BE TEMPORARY SEEDING AND MULCHING. SEEDING IS TO BE AT 75 UBS/ACRE, AND IN THE MONTHS OF SEPTEMBER TO FEBRUARY TO CONSIST MILLET. MIX OF ANNUAL RYEGRASS APPLIED WINTER RYE OR IN MARCH AND APRIL TO APPROVED ANNUAL RYE OR MAY THROUGH AUGUST TO CONSIST OF GERMAN MILLET. STRAW MULCH IS TO BE APPLIED AT 80LBS11 OOSF. 012FINATIVES ARE SUBJECT TO APPROVED BY THE COUWy EROSION CONTROL INSPECTOR. 18. PERMANENT STABILIZATION SHALL BE LIME AND FERTILIZER PERMANENT SEEDI?GAAND MULCH. AGRICULTURAL GRADE LIMESTONE SHALL BE APPLIED AT 90LBS)IMSP, 1) INCORPORATED INTO THE TOP 4-6 INCHES OF SOIL. FERTII-12�R SHALL BE APPLIED ATN AND CONSIST OFA 10-20-10 NUTRIENT MIX. PERMANENT SEED SHALL BE APPLIED AT 180LBS/ACRE AND CONSIST ARE KENTUCAPPROVED Y 31 OR TALL FESCUE AND 0-5% PERENNIAL RYEENTUCKY BLUEGRASS. STRAW MULCH IS TO BE APPLIED AT 80U3S1100SF. ALTERNATIVES ARE SUBJECT TO APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR 19. MAINTENANCE: ALL MEASURES ARE TO BE INSPECTED WEEKLY AND AFTER EACH RAINFALL. ANY DAMAGE OR CLOGGING TO STRUCTURAL MEASURES IS TO BE REPAIR IMMEDIATELY. SILT TRAPS ARE TO BE CLEANED WHEN 50% OF THE WET STORAGE VOLUME IS FILLED WITH SEDIMENT. ALL SEEDED AREAS ARE TO BE RESEEDED WHEN 11 HAL THEIR NECESSARY TO ACHIEVE A GOOD STAND OF GRASS. SILT FENCE AND DIVERSION DYKES WHICH ARE COLLECTING SEDIMENT TO HEIGHT MUST BE CLEANED ,, REPAIRED IMMEDIATELY. 20� ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASU%S ARE TO THE DAYS OF FINAL SITE STABILIZATION, WHEN MEASURES ARE NO LONGER NEEDED, SUBJECT TO APP OVAL BY THE COUNTY EROSIONONTROL INSPECTOR. TERRA CONCEPTS, P.C. CIVIL ENGINEERS LANDSCAPE ARCHITECTS 224 COURT SQUARE CHARLOTTESVILLE, VIRGINIA 22902 P14. 4342954005 FAX 434-295-2103 OF 1, fro Steven W I Lk. N.. 0931 S ,CALE: 1"=3 SSUED: 11/06/( )RAWN BY m() tEVISIONS: 11-6-06, INITIAL. SUBMITTAL 12-14-06, ARB COMMENTS 12-21-06, ACSA COMMENTS 12-27-06, COUNTY COMMENTE n9has - N, pan of this 1-.1 p1ts-1 ,, I copynght (plans, ides,, -911 -111 a dated, plassa,al on these plans) may be reproduced, -lg. or Aizad,, any fian, or by any nnaam. eleNonip or M -N an www'g,aanning, by 1, f.. Tan. Concepts, P.C. 1180, In- plans - . - asagno to I thlal WM th- fila -fta, 1-lalaa, of -a Concepts, P 0 TERRA GONCFAT3, P.C. P, t"I pm� z 0 pal 14 > OF 1, fro Steven W I Lk. N.. 0931 S ,CALE: 1"=3 SSUED: 11/06/( )RAWN BY m() tEVISIONS: 11-6-06, INITIAL. SUBMITTAL 12-14-06, ARB COMMENTS 12-21-06, ACSA COMMENTS 12-27-06, COUNTY COMMENTE n9has - N, pan of this 1-.1 p1ts-1 ,, I copynght (plans, ides,, -911 -111 a dated, plassa,al on these plans) may be reproduced, -lg. or Aizad,, any fian, or by any nnaam. eleNonip or M -N an www'g,aanning, by 1, f.. Tan. Concepts, P.C. 1180, In- plans - . - asagno to I thlal WM th- fila -fta, 1-lalaa, of -a Concepts, P 0 TERRA GONCFAT3, P.C. STONE 70' MIN. CONSTRUCTION ACCESS 3" SM -2A ASPHALT TOP COURSE7-EXISTING 2/ 2/ PAVEMENT .,..A .4 B" MIN 21A AGGREGATE BASE 12 MIN POSITIVE DRAINAGE 2/ TO SEDIMENT TRAPPING DEVICE u :.. �- t 1✓4c. b r c � `"'' a -�" :�.— L4 :r ,>7 FILTER CLOTH SECTION A -A NOTE: A MINIMUM WATER TAP OF 2" IS REQUIRED WITH A MINIMUM WASH HOSE DIA. OF 1.5' Al PANED WASH RACK SECTION E-017 N.T.S. Source: Va. DSCN CORRECT METHODS OF TREE FENCING DRAINAGE SWALE DIRECTS FLOW 12 70' MIN. STONE ELEV. 690.30 70' MIN. MIN, 0,5' CONSTRUCTION 3 SM -2A ASPHALT TOP COURSE 00.00 PAVED A/ ACCESS -EXISTING SEDIMENT CLEANOUT _ASPHALT WASHRACK ELEV. 686.20 PAVEMENT {{ € — �-? tt {{ty;�q;�8 y 111! DIVERSION " 2 ,_f,cx fi.,4-„.,c',`6” DITCH q " VDOT #21A AGGREGATE BASE IrY7 2_ � EXISTING GROUND z � CURNINLET XISTING 70' MIN. _ � 2 /o � 2 PAVEMENT 10'MIN. Q n?, r Ityl 12' MIN. EXISTING L—® —POSITIVE DRAINAGE PAVEMENT ' MUST EXTEND FULL WIDTH TO SEDIMENT OF INGRESS AND EGRESS i TRAPPING DEVICE OPERATION PLAN 12 MIN POSITIVE DRAINAGE 2/ TO SEDIMENT TRAPPING DEVICE u :.. �- t 1✓4c. b r c � `"'' a -�" :�.— L4 :r ,>7 FILTER CLOTH SECTION A -A NOTE: A MINIMUM WATER TAP OF 2" IS REQUIRED WITH A MINIMUM WASH HOSE DIA. OF 1.5' Al PANED WASH RACK SECTION E-017 N.T.S. Source: Va. DSCN CORRECT METHODS OF TREE FENCING DRAINAGE SWALE DIRECTS FLOW 12 TO SEDIMENT BASIN j, FLTEREDWATER ELEV. 690.30 70' MIN. MIN, 0,5' RISER CREST 3 SM -2A ASPHALT TOP COURSE 00.00 WET STORAGE A/ ELEV.687.5088]50 "' ..... -EXISTING SEDIMENT CLEANOUT 2% 2/ ELEV. 686.20 PAVEMENT 1`I Ir II — �-? tt {{ty;�q;�8 y 111! DIVERSION " 2 ,_f,cx fi.,4-„.,c',`6” DITCH q " VDOT #21A AGGREGATE BASE SIDE ELEVATION EXISTING GROUND p CURNINLET SPECIFIC APPLICATION 70' MIN. ASPHALT PAVED WASHRACK 10'MIN. Q n?, r Ityl 12' MIN. EXISTING a I I PAVEMENT b DIVERSION DITCH MIN. --/ I WIDTH AT DESIGN WATER ELEVATION IS 4.0' 1 PLAN VIEW DEVICE MIN. MUST EXTEND FULL WIDTH OF INGRESS AND EGRESS SET 1%" WATER HYDRANT WITH OPERATION FROST PROOF HYDRANT 3' 70' MIN ABOVE GRADE AND 4' OFF EDGE OF PAVEMENT _2/ y li III a ,.:il-ii! NOTE: A MINIMUM WATER TRAP OF 1" IS REQUIRED WITH A MINIMUM WASH HOSE IIIA. OF 1.5' SECTION A -A ALBEMARLE COUNTY CONSTRUCTION ENTRANCE SECTION ate 3.38-2 SOURCE: VA. DSWC VCE CORRECT TRUNK ARMORING �Wt 1 t TRIANGULAR BOARD FENCE II FENCING AND A�RMORT�G 2 DETAIL E-071 N.T.R. Compacted Soil 18" in. tFlow �t��.� ������� ll-dLl lllli I MI I II IIII IL1LI H4.5' min.H TEMPORARY DIVERSION DINE SECTION Source: Public Facilities Manual, Vol. III, Fairfax Co., Va., 1976 E-001 N.7'.S. PLATE 3.091 DRIP LINE PROTECTIVE DEVICE MAXIMUM LIMITS OF CLEARING AND GRADING PROPOSED GRADING \ fi MINE5' WHERE 1 IS LESS THAN 5' CONSTRUCTION OPERATIONS RELATIVE TO TATE LOCATION OF PROTII t'CTED TREES DETAIL E-005 N.T.S. SOURCE. Adapted from Installation of Straw and Fabric Filter Barriers for Sediment Cor l,VA DSWC Sherwood and Wyant 1. SET THE STAKES, 2. EXCAVATE A 4"X 4" TRENCH UPSLOPE ALONG THE LINE OF STAKES. s'MAX. I - ��_� FLOW III III 3. STAPLE FILTER MATERIAL 4. BACKFILL AND COMPACT TO STAKES AND EXTEND THE EXCAVATED SOIL IT INTO THE TRENCH I IIII SHEET FLOW INSTALLATION (PERSPECTIVE VIEW) PLATE. 3.05-2 SOURCE: VA. DSWC FLOW P WI A. SHOULD RF HIGHER THAN POINT R, DRAINAGEWAY INSTALLATION (FRONT ELEVATION) CONSTRUCTION OF Al SILT FENCE (WITHOUT WIRE SUPPORT DETAIL E-o2a N.1'.6. SOURCE: VA. DSWC PROVIDE ADEQUATE/—POLYETHYLENE CAP PLATE. 3.14-15 STRAPPING DEPTH VARIES AS PERFORATED POLYETHYLENE* REQUIRED DRAINAGE TUBING, DIAMETER FOR" DRY VARIES (SEE CALCULATIONS IN STORAGE APPENDIX 3.14-A) WE " FERNCO-STYLE "COUPLING STORAGE DEWATERING ORIFICE, SCHEDULE 40 STEEL STUB 1 -FOOT MINIMUM, CORRUGATED METAL RISER DIAMETER VARIES (SEE CALCULATIONS IN APPENDIX 3.14-A) NOTE: WITH CONCRETE RISER, USE PVC SCHEDULE 40 STUB FOR DEWATERING ORIFICE 'DRAINAGE TUBING SHALL COMPLY WITH ASTM F567 AND AASHTO M294 RECOMMENDED DEWATERING SYSTEM FOR F SEDIMENT BASINS �5 DETAIL E.073 N.T.S. Plate 3.38-1 SOURCE: VA. DSWC E-072 N.T.S. TOP OF DAM PLATE. 3.14-2 ELEV.692.50 DESIGN HIGH WATER 12 V„ (100 -YR. STORM ELEV) j, FLTEREDWATER ELEV. 690.30 MIN, 0,5' RISER CREST WET ELEEV.V. 60000 ... 00.00 WET STORAGE 48"RCP 48" RC RISER ELEV.687.5088]50 "' ..... 5" DEWATERING SEDIMENT CLEANOUT ORIFICE ELEV. ELEV. 686.20 687,50 INVERT ELEV. tt {{ty;�q;�8 y ss2.6s 15" CMP @ 1.96% ELEV. 595.00 � �'-----�—� 18� CONCRETE \------� BASE DESIGN ELEVATIONS WITHOUT EMERGENCY SPILLWAY (RISER PASSES 25 -YR. EVENT) Z 1 SEDIMENT BASIL T RISER 5 N:SECTION T.S. U9 PLATE 3.07-6 D H —J� GE -EL F-EIR RUNOFF WATER 12 j, FLTEREDWATER = _ I Wri== -=IIIIII�IIIIII' - I - VIII VIII �Ilili o�e F� CONGA TEG IER p CURNINLET SPECIFIC APPLICATION THIS METHOD OF INLET PROTECTION IS APPLICABLE AT CURB INLETS WHERE PONDING IN FRONT OF THE STRUCTURE c NOT LIKELY TO CAUSE INCONVENIENCE OR DAMAGE TO ADJACENT STRUCTURES AND UNPROTECTED AREAS. " GRAVEL SHALL BE VDOT #3, #357 OR 5 COARSE AGGREGATE GRAVEL (CURB INLET SEDIMENT FILTER 5 SECTION N.T.S. SOURCE: VA. DSV 'LATE, 3,07-2 SPECIFIC APPLICATION WATER THIS METHOD OF INLET PROTECTION IS APPLICABLE WHERE HEAVY CONCENTRATED FLOWS ARE EXPECTED BUT NOT WHERE PONDING AROUND THE STRUCTURE MIGHT CAUSE EXCESSIVE INCONVENIENCE OR DAMAGE TO ADJACENT STRUCTURES AND UNPROTECTED AREAS. " GRAVEL SHALL BE VDOT #3, #357 OR #5 COARSE AGGREGATE. GRAVEL & WIRE MESH DROP INLET SEDIMENT G FILTER �� SECTION E-013 N.T.S. TERRA ONCEPTS, P.C. CiVIIL EN'GIINEERS LANI DSCAIPEARCHITECTS 224 COURT SQUARE CII.4P.LOTTESVILLE, VIRGINIA 22902 PH. 434 295 4005 FAX 431 295-2103 OF L'ic. No. 35326 Op Steven W. Edwards tic. No. 0931 j LNDSCAQ�', SCALE: AS SIIONVN ISSUED: 11/06/6 IDRAI'VN BY: D/IOS REVISIONS: 0. 11-6-06, INITIAL SUBNETTAL 1. 12-14-06, ARB COMNIENTs 1 12-21-06, ACS„ CO",INIENTS 3, 12-27-D6, COUNTY C01d'X ENTS Allrightsr LW,L No part Mthe material protec by this copyright (plans, ideas, designs, settlors or details expressed on hM1 plans) may P, reprod d, changed or u.1 In any form or by any means, electronic or mechan'ical, including I pM1otoc lth, scanning, or by any otM1er means of retrieval system ithout written permission from Terra Concepts, P.C. Al, these plans may not be assigned to a third party without f51 writlen autM1Wrization of Terra Concepts, P.C. 0 TERRA CONCEPTS, P.C. SHEET OF 27 H o�e F� p Q ® r b ELI VJL OF L'ic. No. 35326 Op Steven W. Edwards tic. No. 0931 j LNDSCAQ�', SCALE: AS SIIONVN ISSUED: 11/06/6 IDRAI'VN BY: D/IOS REVISIONS: 0. 11-6-06, INITIAL SUBNETTAL 1. 12-14-06, ARB COMNIENTs 1 12-21-06, ACS„ CO",INIENTS 3, 12-27-D6, COUNTY C01d'X ENTS Allrightsr LW,L No part Mthe material protec by this copyright (plans, ideas, designs, settlors or details expressed on hM1 plans) may P, reprod d, changed or u.1 In any form or by any means, electronic or mechan'ical, including I pM1otoc lth, scanning, or by any otM1er means of retrieval system ithout written permission from Terra Concepts, P.C. Al, these plans may not be assigned to a third party without f51 writlen autM1Wrization of Terra Concepts, P.C. 0 TERRA CONCEPTS, P.C. SHEET OF 27