The URL can be used to link to this page

Home My WebLink AboutSUB200600375 Bond Estimates 2008-05-19 `-qrr.• v - .>s:‘ •. .„ Ashcroft West Private Road ROAD Construction Bond Estimate(roads,site work,storm sewer) Item Item No. Unit Unit Cost Cost Number 'installed) adjustment for inflation Summit Ridge Trail 10+00 to 43+50 road length 3350.0 ft 1 aggregate base 8.0 in d 3350.0 ft L 20.0 ft W 1654.3 cy $35.91 $59,406.67 4 asphalt surface 2.0 in d 3350.0 ft L 20.0 ft W 625.3 tons $81.90 $51,214.80 11 street name sign 1 $65.00 $65.00 12 traffic control sign 2 $49.35 $98.70 13 guardrail 2 ES @$3700 200.0 ft $16.80 $10,760.00 16 pipe,rcp(15 to 48") 15.0 in d 2 ES-1,2$250 1 EC-1$200 60.0 ft $23.10 $2,086.00 21 rip-rap,placed 0.0 ton $31.50 $0.00 22 E&S fabric,EC-2,3 3275 ft L 4 ft W 1455.6 sy $10.50 $15,283.33 23 clear and grub(for wooded sites) 3350.0 ft L 30.0 ft W 2.3 acre $10,500.00 $24,225.21 24 grading (per cy for cut or import only, 969.0 cy fill 12600.0 cy cut -11631.0 cy bal $3.15 $39,690.00 24 CBR tests (1 every 0.1 mi.per road) 3350.0 ft L 6.7 inc of 500' 8 $157.50 $1,212.75 25 as-built drawings(1k+price per 0.1 3350.0 ft L 0.63447 mi. 7 $1,050.00 $8,350.00 26 survey and layout(price per 0.1 mi.) 3350.0 ft L 0.63447 mi. 7 $525.00 $4,675.00 27 mobilization 1 $525.00 $525.00 Road"D" 10+00 to 14+75 road length 475.0 ft 1 aggregate base 6.0 in d 475.0 ft L 18.0 ft W 158.3 cy $35.91 $5,685.75 4 asphalt surface 2.0 in d 475.0 ft L 18.0 ft W 79.8 tons $81.90 $6,535.62 11 street name sign 1 $65.00 $65.00 12 traffic control sign 2 $49.35 $98.70 13 guardrail 2 ES @$3700 310.0 ft $16.80 $12,608.00 22 E&S fabric,EC-2,3 470 ft L 4 ft W 208.9 sy $10.50 $2,193.33 23 clear and grub(for wooded sites) 475.0 ft L 30.0 ft W 0.3 acre $10,500.00 $3,434.92 24 grading (per cy for cut or import only, 1.0 cy fill 4522.0 cy cut -4521.0 cy bal $3.15 $14,244.30 24 CBR tests (1 every 0.1 mi.per road) 475.0 ft L 0.95 inc of 500' 2 $157.50 $315.00 25 as-built drawings(1k+price per 0.1 475.0 ftL 0.08996 mi. 1 $1,050.00 $2,050.00 26 survey and layout(price per 0.1 mi.) 475.0 ft L 0.08996 mi. 1 $525.00 $1,525.00 cost sum $266,348.08 contingency 25% $66,587.02 Total $332,940 5/23/2008 05/19/2008 09:45 FAX el001/001 \NYV �p1,lr,A? 1 `ss • COUNTY OF ALBEMARLE Department of Community Development 401 McIntire Road,Room 227 Charlottesville,Virginia 22902-4596 Phone(434)296-5832 Fax(434)972-4126 SUBDIVISION/ROAD BOND ESTIMATE REQUEST (Estimate must be requested by the Owner/Developer of the project) DATE• 05/19/2008 PROJECT NAME: Ashcroft West (include phase,section;and other relevant information to clearly identify the project) TAX MAP/PARCEL: 78-57 OWNER/DEVELOPER: Pantops-Lakeridge LLC This is to request that subdivision/road bond estimates be prepared for the above project. The requested estimates include(check box): ri Roads& Drainage ✓❑ Water& Sewer ❑ Other Items requiring bonding as a condition of final plat approval (i.e. landscaping,pedestrian paths,proffers,etc). List items below: I understand that subdivision plans must be approved before bond estimates will be prepared. Signature of Owner/Developer-4 Gck cly14- (k1Ciflk L 1 c dnt D) T(o rec - Thad Print Name Title NOTE: Bond estimates will be prepared within two weeks of plan approval and receipt of this request. A of Al.� �r ,UllJp g �‘t COUNTY OF ALBEMARLE Department of Community Development 401 McIntire Road,Room 227 Charlottesville,Virginia 22902-4596 Phone(434)296-5832 Fax(434)972-4126 Project: SUB200600375,WP0200700082 Ashcroft West,Private Street Plans Plan preparer: Mr. Thomas Muncaster PE,DDR LLC [fax: 979-1681] Owner or rep.: Mr. Charles W.Hurt,Pantops-Lakeridge,LLC [fax: 296-3510] Plan received date: 04 October 2007 (last revision dated 04 October 2007) 19 December 2007 Date of comments: 26 October 2007 01 February 2008 Reviewer: 1st Review Andrew Lowe/Allan Schuck 2nd&3rd Review Max Greene The private street plan for Ashcroft West Subdivision,resubmitted on 19 December 2007,has been reviewed. The plans can be approved. Please submit 6 copies of the plans with the road names shown on all applicable pages. A drainage easement will be required to be shown on the fmal plat for the drainage thru the unnamed lot beside lot#1. The Water Protection Bond amount is$145,600.00 and will be posted and approved prior to issuance of the grading permit. A Stormwater Management Facilities Maintenance Agreement is required. Please submit the latest version, dated August 1999,typed and signed in black ink by the owner,along with the$16 recordation fee. Note: The plan cannot be approved until the Maintenance Agreement has been received, approved and recorded. The applicant needs to submit a Subdivision Road Bond Estimate Request. This request needs to be completed by the applicant before a road bond can be computed. The road bond needs to be posted and approved before the Engineering Department will grant approval to the fmal subdivision plat. RP,E.:iC,SW:Ni. MRC:i 06-375 Ashcroft West private road.doc OF AL _ 4aim% .0=1COUNTY OF ALBEMARLE Department of Community Development 401 McIntire Road,Room 227 Charlottesville,Virginia 22902-4596 Phone(434)296-5832 Fax(434)972-4126 Project: SUB200600375, WP0200700082 Ashcroft West,Private Street Plans Plan preparer: Mr.Thomas Muncaster PE, DDR LLC [fax: 979-1681] Owner or rep.: Mr. Charles W. Hurt, Pantops-Lakeridge, LLC [fax: 296-3510] Plan received date: 04 October 2007 (last revision dated 04 October 2007) Date of comments: 26 October 2007 Reviewer: 1st Review Andrew Lowe/Allan Schuck 2nd Review Max Greene The private street plan for Ashcroft West Subdivision, submitted on 04 October 2007,has been reviewed. The plans cannot be approved as submitted and will require the following changes/corrections prior to final approval. Engineering is available from 2-4 PM on Thursdays to discuss these review comments. Please contact Mr. Allan Schuck, at 296.5832, Ext. 3069,to schedule an appointment. Please note that the county has recently updated the Design Manual [DM] and the following comments reference the latest version. The Design Manual and Engineer Review Final Plan Checklist can be downloaded from the county website under the subtitle"Design Standards". http://www.albemarle.org/deptforms.asp?section_id=&department=cddstds A. Private Road plans(SUB-2006-00375) 1) r-e r .e-.lb emar-le Cou„t. uesi'. Manual F nal Pl „s Lists. [D J (This comment appears adequately addressed) 2) Show and label the available sight distance at the intersections of Summit Ridge and Lego Road and the intersection of Summit Ridge and Road D on the plans. [DM] (This comment not adequately addressed)Please show the distance in linear feet on the plan sheet for review of adequate site distance. 3) If a sight distance easement is required,please show on the road plans. [DM] (This item could not be verified without the distance shown on the plan sheet.) 4) Please label the proposed edge of pavement(EP)radii at the intersection of Lego Drive and Summit Ridge Trail. [DM] (This item not adequately addressed)Please show the radius length on the plan sheet. 5) (This item appears adequately addressed) 6) The sag vertical curve at station 10+00 is(11.1)below the minimum allowed K value(17). Please revise vertical curve at the location to have a K value greater than 17. [VDOT] (This item has not been adequately addressed) Road design will meet or exceed current road standards. (County Policy)Please contact the County Engineer(Mr. Glenn Brooks)for clarification. 7) Designate locations for VDOT crossdrains(VDOT CD-1 and CD-2)in all road profiles. [DM] (This Albemarle -.nty Community Development ;`;iigineering Review Comments Page 2 of 4 item has not been adequately addressed) Per note #12 of the "General Construction Notes for Streets"All VDOT standard CD-1 and CD-2 cross-drains to be installed under the subbase material at all cut and fill transitions and grade sag points as shown on the road profiles. 8) On the profile, show and label the stationing of the culvert. [DM] (The existing 12"CMP is missing from the profile.) 9) Provide scour outlet protection at the outfall of culvert at station 31+50 with corresponding computations. [DM] (This item not adequately addressed) Computation work sheet per the "County Design Standards Manual"was not submitted. http://www.albemarle.org/deptforms.asp?section_id=&department=cddstds 10) Tu 1 rt ' 1 b 1 a th rl. she cc ma-r ab cicd-a$-r 5—RcP v a the de iver-ksheet,-Please-revise-aeeerdinglyEDW (This item appears adequately addressed) 11) Show guardrail at the culvert location. [DM] (This item not adequately addressed)Please show the stationing for the beginning and end of the guardrails. The guardrail and end sections will be shown on the plan sheets. 12) B C F 1 YY 1 rL. r �t t .1 r pla ill ee.l the p e 1 ,7 al e «d date.l [DM} (This item appears adequately addressed) 13) Please revise the typical section for Street D to show a 7' shoulder with guardrail. [DM] This note implies a need for guardrail on road"D': Please show the guardrail and end sections with road station designations for the beginning and ending per VDOT standards. 14) Pl Y 1 1 a r f r r .l pose eulvert and ditches r abel , e e hydrologic (This item appears adequately addressed) 15) Provide ditch calculations for the following areas: a) Left side of Summit Ridge from approximately station 32+50 to 31+50. b) Left side of Summit Ridge from approximately station 30+00 to 31+50. c) Right side of Summit Ridge from approximately station 30+00 to 31+50. d) From end of Summit Ridge to the stormwater management BMP. e) It appears MS-19 concerns need to be adequately addressed at Station 19+00. There is no existing or proposed channel to accept this drainage. (This comment not adequately addressed) No County chart could be found in the submittal for the required drainage computation. Please use the charts found in the Design Standards manual to help with the review of this project. - http://www.albemarle.org/deptforms.asp?section_id=&department=cddstds 16) Show the drainage easement around the stormwater management facilities. [DM] (This comment appears addressed)However, the SWM easements will be adjusted to fit the actual dimensions of the finished structure. 17) Show access easements for SWM facilities. [18-32.7.4, DM] (This comment not adequately addressed) Vehicular maintenance access roads must meet the following criteria: a) Access roads must be a minimum of 10 feet wide b) Access roads cannot have gradient>20% c)Access roads must be armored with VDOT#1 coarse aggregate where gradients are greater than 10% d) Access roads must be in an easement as provided in Chapter 11 of the Albemarle County Design Standards Manual; Albemarle ,nty Community Development igineering Review Comments Page 3 of 4 e)Access roads must provide access to one side of the pond the top of the embankment adjacent to the outlet structure and the forebay if applicable; 18) " [DM1 (This item appears adequately addressed) 19) Sh ' ` e€ �lim`t " gn c stree« [1" ""' (This item appears adequately r addressed) 20) Please note date and source of the topographic information. The topography should be visually field verified within the last year. Also note the benchmark locations. [DM] (This comment does not appear adequately addressed) the topography is out of date and benchmarks could not be found. 21) As part of the private street request,the applicant stated that Low Impact Development would be incorporated into the street design. There is a note on Sheet 3 of 6, "Water quality measures for portions of road not draining into SWM/BMP structures to be provided through ditch geometry, widening and biofilter type plantings:"but no other details have been provided on the private street plans. Please provide sections,profiles, computations and other needed items to address this comment. [DM] (This item does not appear adequately addressed)Please show details and as stated above. 22) The applicant needs to submit a Subdivision Road Bond Estimate Request. This request needs to be completed by the applicant before a road bond can be computed. The road bond needs to be posted and approved before the Engineering Department will grant approval to the final subdivision plat. B. Erosion Control Plans: (WPO-2007-00082) 1. USDA Soil Survey designates these soils as"severely erosive"with high rates of stormwater run-off. Therefore,the narrative should warn the contractor of this fact. 2. Please update the inlet protection description to match this plan submittal. No drop or curb inlets are shown on this submittal. 3. Va. Tech soil PH testing cost(revised in 2001) is a$7.00 fee. Please update the cost in the narrative. The kits are available from the Community Development Department at no cost. 4. Please include accurate construction details for the E&SC perimeter control structures. These details will clarify the responsibility of the contractor and the inspector will be approving prior to clearing and grading the project drainage areas. 5. Perimeter control E&SC structure#2 will be designed as a basin due to the total drainage area to the outlet area of the structure. Bottom dimensions are required. 6. Sediment settling structures will be designed with a minimum 2:1 inlet to outlet flow ratio or show a baffle per VESCH pages III-92 to III-94. 7. Please show the grading required for constructing the sediment control structures. Plan appears to show sediment control structures too close to the road creating a conflict with the road construction. Please clarify. 8. Please show the different soil divides on the E&SC plan sheet. They can be found on the County GIS web site. http://gisweb.albemarle.org 9. Please add the following note to the plan sheet: "The developer shall reserve the right to install, maintain,remove and/or convert to permanent stormwater management facilities(where applicable)all erosion and sediment control ' Albemarl tnty Community Development Engineering Review Comments Page 4 of 4 • measures required by this plan regardless of the sale of any lot." 10. Please show the additional construction work areas for the grading contractor. Additional areas to include but not limited to: a. Stockpile areas for: i. trees, ii. stumps, iii. topsoil, iv. fill material b. Stabilized areas for: i. Staging, ii. parking, iii. Materials areas 11. Please add the"Albemarle Paved Wash Rack"detail to the plan sheet. 12. The E&SC portion of the Water Protection Bond will be determined when the E&SC plan is ready for approval. Due to the current extent of requested changes to the E&SC plan sheet and narrative, additional comments and/or conditions may be forthcoming. C. Stormwater Maintenance Plan: (WPO200700082) 1. Please submit SWM worksheets and details for each proposed facility in accordance with the Checklist at the end of the County design manual. http://www.albemarle.org/upload/images/forms__center/departments/community developm ent/forms/design standards_manual/Albemarle_County Design_Standards_Manual- Engineerins08-31-2007aand_related_docs.pdf 2. Temporary sediment control structures to be converted to permanent stormwater management structures will have the following notes added to the plan sheet: a. The dam shall be designed and constructed per Virginia Dam Safety requirements and shall have a core per County Of Albemarle Engineering policy. b. The slope of dam shall be 3:1 or flatter. c. The outlet protection will be designed as either VDOT EC-1 or VESCH Std. & Spec. 3.18 Outlet Protection Tailwater design. d. A geotechnical engineering study shall consist of 1)a site investigation, 2) laboratory testing and 3)an engineering analysis. 3. A Stormwater Management Facilities Maintenance Agreement is required. Please submit the latest version, dated August 1999, typed and signed in black ink by the owner,along with the$16 recordation fee. Note:The plan cannot be approved until the Maintenance Agreement has been received, approved and recorded. I'ilL C? Ip.rCc_ S\\ NI NI (i O -$75 (\,h(_noit \\'e t pin 1tc rcricl cloc, J— I 172 South Pantos Drive - ��o`� Dominion _ 434.979.8121 (p) p 40) # Development Charlottesville, VA 22911 d y 11► 434.979.1681 (f) r' I "-'Resources, LLC DDRVA.com FPI tri Se ets cts October 1, 2007 Mr. Andrew Lowe Department of Community Development Albemarle County 401 McIntire Road Charlottesville, VA 22902 Re: Ashcroft West Dear Andy: Attached are three copies of the private road plans revised in accordance with your July 27, 2007 comments as follows: Notes added. Sight distance shown and labeled. Vat Sight distance easement not required. X1 Edge of pavement radii labeled. Existing and proposed elevations labeled at stations on profile. The sag curve at 10+00 is built to the east. The private road plans for this section of ,Summit Ridge Trail were previously approved. ,v'fi b'e- ft LL 4 fo cL'y s Cross drain locations shown on profiles. Culvert labeled on profile. EC-1 outlet protection. ®k .1-fir Culvert label corrected. 114 Guardrail shown at culvert location. OK,1 Plans sealed and dated. ` . Typical section revised. NQ C� 1-6S G` �' �` p 14) Drainage map provided. Ili # 172 South Pantops Drive 434.979.8121 (p) Charlottesville, VA 22911 434.979.1681 (f) DDRVA.com 15) Ditch calculations provided. 16) Drainage easements shown around stormwater facilities. 17) Access easements shown for SWM facilities. 18) Existing grade on profile. 19) Speed limit signs shown. 20) Topographical information noted. 21) The only ditches not draining into the SWM/BMP structures are those at the entrance where check dams and specific plantings are called for (see attached pictures). Please don't hesitate to call if you have any questions or comments. . is_....4.. Sincerely, IA) c-L-- W. Thomas Muncaster, Jr., P.E. i- COUNTY OF ALBEMARLE Department of Community Development 401 McIntire Road,Room 227 Charlottesville,Virginia 22902-4596 Phone(434)296-5832 Fax(434)972-4126 Project: SUB-2006-00375,Ashcroft West,Private Street Plans Plan preparer: Mr.Thomas Muncaster PE,DDR LLC [fax: 979-1618] Owner or rep.: Mr. Charles W.Hurt,Pantops-Lakeridge,LLC [fax: 296-3510] Plan received date: 22 June 2007(plan dated 21 June 2007) Date of comments: 27 July 2007 Reviewer: Andrew Lowe The private street plan for Ashcroft West Subdivision, submitted on 22 June 2007,has been reviewed. The plans cannot be approved as submitted and will require the following changes/corrections prior to final approval. Engineering is available from 2-4 PM on Thursdays to discuss these review comments. Please contact Mr.Allan Schuck, at 296.5832,Ext. 3069,to schedule an appointment. Please note that the county has recently updated the Design Manual [DM] and the following comments reference the latest version. The Design Manual and Engineer Review Final Plan Checklist can be downloaded from the county website under the subtitle"Design Standards". A.Private Road plans(SUB-2006-00375) i°-2 3-o7 ly K• Please add list#1: General Construction Notes and list#2 General Construction Notes for Streets from the Albemarle County Design Manual Final Plans Lists. [DM] No D•gtAatt X 2) Show and label the available sight distance at the intersections of Summit Ridge and Lego Road S kov...A- and the intersection of Summit Ridge and Road D on the plans. [DM] Ok ,0.1) If a sight distance easement is required,please show on the road plans. [DM] 4) Please label the proposed edge of pavement(EP)radii at the intersection of Lego Drive and S 1% .,,� Summit Ridge Trail. [DM] p.K,ter On the profiles,please label the existing and proposed elevations at the stations. [DM] Ok key * The sag vertical curve at station 10+00 is(11.1)below the minimum allowed K value(17). Please 1 ♦ f. 5 $ evise vertical curve at the location to have a K value greater than 17. [VDOT] �.l e h.) INS y74, Designate locations for VDOT crossdrains(VDOT CD-1 and CD-2)in all road profiles. [DM]s /2 Aran On the profile, show and label the stationing of the culvert. [DM] t YJ 4-i wav No* $ M me, S. X Provide scour outlet protection at the outfall of culvert at station 31+50 with correspond computations. [DM] D K. 1.‹The culvert is labeled as 15"CMP on the plan sheet and labeled as 15"RCP on the design worksheet. Please revise accordingly. [DM] G Q-Z Show guardrail at the culvert location. [DM] QitASi. S lw 81` % + E N b Si-4 d. 0 K. Before final approval the private road plans will need the professional sea signed and dated. [DM] (mousy gq,s4 Please revise the typical section for Street D to show a 7' shoulder with guardrail. [DM] JAI Please provide a drainage map for proposed culvert and ditches. Label acreages,hydrologic coefficients and times of concentration as shown on computations. [DM] Provide ditch calculations for the following areas: Chit -r2. . C ktc,k • Albemarle my Community Development Engineering Review Comments Page 2 of 2 a) Left side of Summit Ridge from approximately station 32+50 to 31+50. b) Left side of Summit Ridge from approximately station 30+00 to 31+50. c) Right side of Summit Ridge from approximately station 30+00 to 31+50. d) From end of Summit Ridge to the stormwater management BMP. e) It appears MS-19 concerns need to be adequately addressed at Station 19+00. There is no existing or proposed channel to accept this drainage. ®jt, Show the drainage easement around the stormwater management facilities. [DM] b K- 1.71Show access easements for SWM facilities. [18-32.7.4,DM] 18) On the profile, continue the existing grade elevation from the"as-built"section to station 19+50. M] 0k..14how location for speed limit sign on each street. [14-423] .Please note date and source of the topographic information. The topography should be visually field verified within the last year. Also note the benchmark locations. [DM] As part of the private street request,the applicant stated that Low Impact Development would be incorporated into the street design. There is a note on Sheet 3 of 6, "Water quality measures for portions of road not draining into SWM/BMP structures to be provided through ditch geometry, widening and biofilter type plantings:"but no other details have been provided on the private street plans. Please provide sections,profiles, computations and other needed items to address this comment. [DM] 22) The road bond amount has not been computed at this time. 23) Additional comments and/or conditions may be forthcoming,on the review of future submittals, due to the changes required for this plan submittal. File: El ip_ADL_06-375 Ashcroft West private road Ashcroft West Private Road ROAD Construction Bond Estimate(roads,site work,storm sewer) Item Item No. Unit Unit Cost Cost Number (installed) adjustment for inflation Summit Ridge Trail 10+00 to 43+50 road length 3350.0 ft 1 aggregate base 8.0 in d 3350.0 ft L 20.0 ft W 1654.3 cy $35.91 $59,406.67 4 asphalt surface 2.0 in d 3350.0 ft L 20.0 ft W 625.3 tons $81.90 $51,214.80 11 street name sign 1 $65.00 $65.00 12 traffic control sign 2 $49.35 $98.70 13 guardrail (or rebuild wall in right-of-w. 4 ES @$3700 200.0 ft $16.80 $18,160.00 16 pipe,rcp(15 to 48") 15.0 in d 2 ES-1,2$250 1 EC-1$200 60.0 ft $23.10 $2,086.00 21 rip-rap,placed 0.0 ton $31.50 $0.00 22 E&S fabric,EC-2,3 3275 ftL 4 ft W 1455.6 sy $10.50 $15,283.33 23 clear and grub(for wooded sites) 3350.0 ft L 30.0 ft W _ 2.3 acre $10,500.00 $24,225.21 24 grading (per cy for cut or import only 969.0 cy fill 12600.0 cy cut -11631.0 cy bal $3.15 $39,690.00 24 CBR tests(1 every 0.1 mi.per road) 3350.0 ft L 6.7 inc of 500' 8 $157.50, $1,212.75 25 as-built drawings(1k+price per 0.1 3350.0 ft L 0.63447 mi. 7 $1,050.00 $8,350.00 26 survey and layout(price per 0.1 mi.) 3350.0 ft L 0.63447 mi. 7 $525.00 $4,675.00 27 mobilization 1 $525.00 $525.00 Road"D" 10+00 to 14+75 road length 475.0 ft 1 aggregate base 6.0 in d 475.0 ftL 18.0 ft W 158.3 cy $35.91 $5,685.75 4 asphalt surface 2.0 in d 475.0 ftL 18.0 ft W 79.8 tons $81.90 $6,535.62 11 street name sign 1 $65.00 $65.00 12 traffic control sign 2 $49.35 $98.70 22 E&S fabric,EC-2,3 470 ftL 4 ft W 208.9 sy $10.50 $2,193.33 23 clear and grub(for wooded sites) 475.0 ft L 30.0 ft W 0.3 acre $10,500.00 $3,434.92 24 grading (per cy for cut or import only, 1.0 cy fill 4522.0 cy cut -4521.0 cy bal $3.15 $14,244.30 24 CBR tests(1 every 0.1 mi.per road) 475.0 ft L 0.95 inc of 500' 2 $157.50 $315.00 25 as-built drawings(1k+price per 0.1 475.0 ft L 0.08996 mi. 1 $1,050.00 $2,050.00 26 survey and layout(price per 0.1 mi.) 475.0 ft L 0.08996 mi. 1 $525.00 $1,525.00 r ' cost SUM $261,140.08 . contingency 25% $65,285.02 Total $326,430 • 7/31/2007 r 0 N c+) n J T T — — O O C To V TO o .o o ED E T 0 D u 3 m - o m Y • rj y OOOOOOOOOOOOOOOOOOOOOOOOOOO C-C)e1m0 A 0 f r r cocur r O q 0 0 0 0 0 0 0 0 0 0 0 0.-N.-t D 0 0 c D 7 N mM OCJ O rj y j c O O f O.-.-N t O O N cv 3 Ll U G C O O O O C O O O G C do O O C C O O O C C 0 0 0 0 0 t7 co 03 CO n N n m O G C O co O G G O O O O (�CO 0 O O'CD N o A 0 3 U U 00 CO m tG(�cD O O 15 n — D. c 'o t d + O)E 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0)O N r 7 f0 O O N O 0)'0 0 0 O O O O O O O O O < + 03= 0000000000 . 3 L '5 6d 666 CJ 6a6 G CJ CJ O d CJ6CJ a 666 ci 66 CJ OCJ O CJ 66 CJd 6O666O CJ O CJ 66 u—i r�--�d d O r 6 m to d 66.a 66 d OOCJ6d V L GOO ci O00000° a) W — ,-�O 00th rn,-�n m o = ca y $� W N d W 0000000000000000000000000000 N N N N r CO c0 cO cOCON O N to MC)r NC)C)C)OOC)N rC)Nm rC)Cl C)OOC)C)0)r 0 d W OC)N O r 0)N 000 p d nr n r.-CO N N N cor r.-lh lh'r CO CO CO t7r.-el r cc,Ell oo Of Ac0 do mO1O cor ,( N W _ (V fV(V r .-no 6 6 6 co t0 f0 f0 N W 9 9<9 C7 3 c .- r CL OOOO OOOOOOOOOOOOOOOOOOOOOOOONN N N chv u??N O N 0? e- � C)N 7 7 700 CO N ?r AACr,00 e-7 CD c?O LO A N OIL?N 000 al 9 Lo O C C)C)C)C)01 C)03 C)03 CO CO 0)CO CO 03 C)C)01 01 CO 0)CO 01 01 C)C)cn c+l C)0)6C)6C)C)0)0)C)0)C)CO CO 0)0)CO CO Cl CO CO 0)CO CO CO CO CO CO 0)CO Cc)CO0)C)0)CO COC)C)01 0..C)C)C)C)co co co co CO + v + o tY o 71- 3 3 O d O coc2c2,icoic22ic2icoc222222PI22222PI222MMcoimmccconmm22Psc9m22c9)2822coicoim22nc2c9)28cncoi222Mnconconm ° 33m2c912mc9)m2c9)m O CD C. id0 92 p •c 0 pppO0ESpmOO pOOppOEpm0mO7N0p07Opp8c0AAA077p � O�� Op O L Wj CI '0077 N N 0,CO el.Q0 c0 EDn s CO OO 77 N N C)CO QOCD EO A A CO 03 O 7 N 01 t7QL CO c0 CO CO 01 0 N N cOCO C NNNNNNNNNNNNNNNNNNNCCC)C)C)C)MC) ch C)C)C)C)C)C)C)C)ClC1C CO QQ?'I'V O OON 040)03 et et r d a O — d m 9 F- c a N A m O1 m rn V ml R' Q C o I- O C.) 0 E -13 Z Q E E E RI C 4111 K d Z fA OF ALN, p Dungr U®Q!r[� �'IRGlN1P COUNTY OF ALBEMARLE Department of Community Development 401 McIntire Road,Room 227 Charlottesville,Virginia 22902-4596 Phone(434)296-5832 Fax(434)972-4126 Project: SUB-2006-00375,Ashcroft West,Private Street Plans Plan preparer: Mr. Thomas Muncaster PE,DDR LLC [fax: 979-1618] Owner or rep.: Mr. Charles W.Hurt,Pantops-Lakeridge,LLC [fax: 296-3510] Plan received date: 22 June 2007 (plan dated 21 June 2007) Date of comments: 27 July 2007 Reviewer: Andrew Lowe The private street plan for Ashcroft West Subdivision, submitted on 22 June 2007,has been reviewed. The plans cannot be approved as submitted and will require the following changes/corrections prior to fmal approval. Engineering is available from'2-4 PM on Thursdays to discuss these review comments. Please contact Mr.Allan Schuck, at 296.5832,Ext. 3069,to schedule an appointment. Please note that the county has recently updated the Design Manual[DM] and the following comments reference the latest version. The Design Manual and Engineer Review Final Plan Checklist can be downloaded from the county website under the subtitle"Design Standards". A.Private Road plans(SUB-2006-00375) 1) Please add list#1: General Construction Notes and list#2 General Construction Notes for Streets from the Albemarle County Design Manual Final Plans Lists. [DM] 2) Show and label the available sight distance at the intersections of Summit Ridge and Lego Road and the intersection of Summit Ridge and Road D on the plans. [DM] 3) If a sight distance easement is required,please show on the road plans. [DM] 4) Please label the proposed edge of pavement(EP)radii at the intersection of Lego Drive and Summit Ridge Trail. [DM] 5) On the profiles,please label the existing and proposed elevations at the stations. [DM] 6) The sag vertical curve at station 10+00 is(11.1)below the minimum allowed K value(17). Please revise vertical curve at the location to have a K value greater than 17. [VDOT] 7) Designate locations for VDOT crossdrains(VDOT CD-1 and CD-2)in all road profiles. [DM] 8) On the profile, show and label the stationing of the culvert. [DM] 9) Provide scour outlet protection at the outfall of'culvert at station 31+50 with corresponding computations. [DM] 10) The culvert is labeled as 15"CMP on the plan sheet and labeled as 15"RCP on the design worksheet. Please revise accordingly. [DM] 11) Show guardrail at the culvert location. [DM] 12)Before final approval the private road plans will need the professional seal signed and dated. [DM] 13) Please revise the typical section for Street D to show a 7' shoulder with guardrail. [DM] 14) Please provide a drainage map for proposed culvert and ditches. Label acreages,hydrologic coefficients and times of concentration as shown on computations. [DM] 15) Provide ditch calculations for the following areas: Albemarle' ?nty Community Development Engineering Review Comments Page 2 of 2 a) Left side of Summit Ridge from approximately station 32+50 to 31+50. b) Left side of Summit Ridge from approximately station 30+00 to 31+50. c) Right side of Summit Ridge from approximately station 30+00 to 31+50. d) From end of Summit Ridge to the stormwater management BMP. e) It appears MS-19 concerns need to be adequately addressed at Station 19+00. There is no existing or proposed channel to accept this drainage. 16) Show the drainage easement around the stormwater management facilities. [DM] 17) Show access easements for SWM facilities. [18-32.7.4,DM] 18) On the profile, continue the existing grade elevation from the"as-built"section to station 19+50. [DM] 19) Show location for speed limit sign on each street. [14-423] 20) Please note date and source of the topographic information. The topography should be visually field verified within the last year. Also note the benchmark locations. ,[DM] 21) As part of the private street request,the applicant stated that Low Impact Development would be incorporated into the street design. There is,a note on Sheet 3 of 6, "Water quality measures for portions of road not draining into SWM/BMP structures to be provided through ditch geometry, widening and biofilter type plantings:"but no other details have been provided on the private street plans. Please provide sections,profiles,computations and other needed items to address this comment. [DM] 22) The road bond amount has not been computed at this time. 23) Additional comments and/or conditions may be forthcoming,on the review of future submittals, due to the changes required for this plan submittal. File. ,F1 rp ()T... 06-375 Ashcroft test private roac1 , _, / ;- 1 _ _, ,o�E A� 4$A I_' _llyllll $®. e vlRclrltt' COUNTY OF ALBEMARLE ********************************************************************* The following facsimile message is being sent from: Department of Community Development 401 McIntire Road,Room 227 fp." X 1 D Charlottesville,Virginia 22902-4596 7 30. 07 Phone: (434)296-5832 91 3 i AL Fax: (434)972-4126 Date: 27 July 2007 Number of Pages(including cover): 3 Sent To: Mr. Thomas Muncaster,PE Fax: 434.979..61E ODi Dominion Development Resources Phone: unknown Sender: Andrew Lowe RE: Review comments for Ashcroft West Private Road Division: Community Development,Engineering Review Message: Mr. Muncaster: Enclosed are the review comments for the private road plans for the above project. Please make revisions and resubmit the plans. Engineering is available from 2-4 PM on Thursday to discuss these review comments. Thanks, Andrew Lowe Attachments: 27 July 2007 review comments for private road plans Copy: SUB-2006-00375 File:07-27-07 Ashcroft West Private Road - _41°F ALjtitrt J$ :I 71 G•iri COUNTY OF ALBEMARLE The following facsimile message is being sent from: IQDepartment of Community Development 0 7D 401 McIntire Road,Room 227 Charlottesville,Virginia 22902-4596 zS AL Phone: (434)296-5832 Fax: (434)972-4126 Date: 27 July 2007 Number of Pages(including cover): 3 Sent To: Dr. Charles W.Hurt Fax: 434.296.3510 Dominion Development Resources Phone: unknown Sender: Andrew Lowe RE: Review comments for Ashcroft West Private Road Division: Community Development,Engineering Review Message: Dr.Hurt: Enclosed are the review comments for the private road plans for the above project. Please make revisions and resubmit the plans. Engineering is available from 2-4 PM on Thursday to discuss these review comments. Thanks, Andrew Lowe Attachments: 27 July 2007 review comments for private road plans Copy: SUB-2006-00375 File:07-27-07 Ashcroft West Private Road Virginia Department of Transportation—Pavement Design Guide ® 1996 Appendix IV Flexible Pavement Design Worksheet for New Subdivision Streets This sheet is intended for use in conjunction with VDOT's Subdivision Street Requirements County Date: Subdivision0.10L.trij t) -- Street Name Developer ?` P Phone: ' 7 p=g/zl ADT Projected traffic for the street segment considered,as defined in the Subdivision Street Requirements. CBRD Design CBR=Average of CBRT x 2/3 and modified only as discussed in the Pavement Design Guide. (� CBRT CBR value of the subgrade sample,taken and tested as specified in the Pavement Design Guide DME VDOT District Materials Engineer EPT Equivalent projected traffic HCV Number of Heavy Commercial Vehicles(e.g.trucks,buses,etc.,with,2 or more axles and 6 or more tires). %HCV Percentage of the total traffic volume composed of Heavy Commercial Vehicles. RF Resiliency Factor=Relative value of the subgrade soil's ability to withstand repeated loading. SSV Soil support value of subgrade(SSV=CBRD x RF) Dp Thickness index of proposed pavement design computed by the Conventional Pavement Design Method DR Thickness index required,based on Design ADT and SSV,determined by Appendix II. Step '::D:etenn nii3::Des'i n ADT §t0WW:Determine:Design Valu:...:;: .. Mitt AratidtSV: ADT Sample CBRT Resiliency Factor (RF) %HCV= 100 x HCV_ADT # 1 Source Value EPT=0.20(%HCV x ADT) # 2 Table 1 or # 3 Appendix I 20 x HCV Note:For # Droved RF Note:For%HCV S 5%,use ADT %HCV>5%, # EP I>ADT For preliminary designs,use the # lowest RF value in the equation Design ADT=greater of l Y Ya CBRD x RF = S:S ADT or EPT . . v ( ) x ( / ) = 5. Ste;>;3::Pavement`Desi n::�(Chec:.k::a .... .:.ate:hox::and>shoi ro ose :: v��ment desi ::be'";`:`;) .;.:............:P.::.::.....:.:....:.:..;;:....::::.......:::;..;:;8 � ...: .:..:P...;.l�a.: :pa.�:::e .:..::.:lln.:.::law, ❑_ (A) Limited to Design ADT 5 400-Show pavement material notations and thickness from Appendix IV Tables A and B. ❑ (B) Show pavement section as developed in the Pavement Design Guide. DR= // • (See Appendix III for material notations and thickness equivalency values(a)). i from Appendix II Description of Proposed Pavement Section Material Notation Thickness,h a (a x h) Surface . 2. " SA/' �!'• ��7 Z /` 7 3. 7 V Base 6' ` 2 / / I i O Subbase Dp must equal or exceed the value of DR. Dp=>(a x h)= • 21 , • Virginia Department Of Transportation—Pavement Design Guide ©1996 . Appendix IV Flexible Pavement Design Worksheet for New Subdivision Streets This sheet is• ended for us in conjunction with VDOT's Subdivision Street,Requirements County _ Date: 6 - 2.2_V -2 Subdivision G/ Street Name `7 i b Developer // Phone: 7 .1, V Z / ADT Projected traffic for the street segment considered,as defined in the Subdivision Street Requirements. CBRD Design CBR=Average of CBRT x.2/3 and modified only as discussed in the Pavement Design Guide. :r' CBRT CBR value of the subgrade sample,taken and tested as specified in the Pavement Design Guide DME VDOT District Materials Engineer EPT Equivalent projected traffic ' HCV Number of Heavy Commercial Vehicles(e.g.trucks,buses,etc.,with 2 or more axles and 6 or more tires). %HCV Percentage of the total traffic volume composed of Heavy Commercial Vehicles. RF Resiliency Factor=Relative value of the subgrade soil's ability,to withstand repeated loading. SSV Soil support value of subgrade(SSV=CBRD x RF) Dp Thickness index of proposed pavement design computed by the Conventional Pavement Design Method DR , Thickness index required,based on Design ADT and SSV,determined by Appendix II. ' Step1 :Determine::Des:i g[:I::ADT §t.,0:>2. Deter ine:Design:Values: ADT 1/0 .. .. 13k#F.10:0. ! '...:.:.. ..:. ' Sample CBRT Resiliency Factor (RF) %HCV= 100 x HCV_ADT # 1 Source Value EPT=0.20(%HCV x ADT) # 2 Table 1 or # 3 Appendix I 20 x HCV Note:For # DMEpproved RF Note:For%HCV<_5%,use ADT %HCV>5%, # EPT>ADT For preliminary designs,use the # i lowest RF value in the equation ..................... . Design ADT=greater of CBRD x RF = <SaV: ADT or EPT ( ) x ( i ) = 5—' $te 3 ::Pavement€De��ign:::Ch`ck: ..::.o:p=..::t.:.: :. ..a:.:. .. .o:..::o o:.:..:.e .:lo:.::.) . :..:.:.::......::..:::;p ;.:.:...: .; .::.....:.:..:59::..:�..;:.�.., �p!p�priata�b�ox..aad:sbg�u;...ro used.::avg�neni:�es, eldw...; ❑ (A) Limited to Design ADT S 400-Show pavement material notations and thickness from Appendix IV Tables and B. ID (B) Show pavement section as developed in the Pavement Design Guide. DR= e (See Appendix III for material notations and thickness equivalency values(a)). i from Appendix II Description of Proposed Pavement Section Material Notation Thickness,h a (a x h) Surface 2 " S - 1, $74 2— 1.6 7 3. 7 y Base 6 " Z I /L i 4 I, I 6. a Subbase - Dp must equal or exceed the value of DR. Dp=>(a x h)= ?. 3 V 21 PROJECT: Ashoroet West Date: 11/16/06 Road: Summit Rtdgo Trail Station: 31+50 Tc = 5 min I CL Elev:U.4.83 QIO = CIA = 0.45 x 6.67 x 1.0 = 2.94 cfs Shoulder Elev: 924.29 Inv Elev: s22.0 So: SLIIIQSZ Inv Elev: N6.0 L: Ao HEADWATER COMPUTATIONS CONT OUTLET CULVERT TYPE ' C SIZE 0 Inlet Con Outlet Control HW VELOCITY HW/D HW Ke do (dc+D) /2 ho H LSo HW ELEV CM Smooth 15' RCP 3.0 0.8 1.0 0.5 0.71 0.38 0.38 0.48 1.0 0.46 323.0 7.7 • DITCHES Ashcroft West . n=0.03 no0.05 6/21/2007 Sta 1 Sta 2 Side C A CA Inc CA ace Ts 12 02 S(ft/ft) V fps V fps 110 Q10 D Qt) Remarks Summit Rid•e Trail MINI NMI 3700 4000 left 0.50 0.27 0,14 0.14 5 5.18 0.7 0.12 4.0 2.75 6 67 0.9 0.32 EC-2 3950 4200 left 0.50 0.21 0.11 0.11 5 5.18 0.5 0.12 3,7 2.5 6.67 0.7 0.29 EC•2 4200 ' III left 0.50 0.17 0.09 0.19 5 5.18 1.0 0.06 3.4 2.3 6.67 1.3 0.42 EC-2 riga NINE 3575 3250 left 0.50 0.20 0.10 0.10 5 5.18 0.5 0.06 2.9 2.0 6.67 0.7 0.33 IINMI 3 W, NM NM 111=111=111 0.50 0.10 0,05 0.05 5 5.18 0.3 0.10 3.0 2.1 6.67 0.3 0.22 ;50111M;all 0.50 0.26 0.13 0.18 5 5.18 0.9 0.10 4.0 2.7 6.67 1.2 0.37 EC-2 1050 1250 EN 0.50 0.14 0,07 0.07 5 5.18 0.4 0.1152 3,5 2.4 6.67 0.6 0.26 EC-2 NINO MINN MINN 3700 4200 ri•ht 0.50 0.26 0.13 0.13 5 5.18 0.7 0.12 4.9 3.3 6.67 0.9 0.42 SC.2 - 420+ PmeimIrm 0.45 0.33 0.15 0.28 5 5.18 1.4 0.06 4.2 2.9 6.67 1.9 0.57 'EC-2 rill Z660 right 0.50 0.12 0.06 0.06 5 5.18 0.3 0.10 3.0 2.1 6.67 0.4 0.24 _ •i,s EIIMI 0.50 0.30 0.15 0.21 5 5.18 1.1 0.10 ] 2.9 6.67 1.4 0.39 EC•2 1 3 a.• . 16 9 'ram wirjamErai ENO _ NM MIN 1400 1475 0.45 0.09 . 0,04 0.04 5 5.18 0.2 0.1200 3.0 2.0 6.67 0.3 0.21 e--C -2 ci1 we��wv1 1475 1875 Ma 0.45 0.76 0.34 0.38 9 4.29 1.6 0.0250 2.8 1,9 5.58. 2.1 0.59 v c--2- 0k eta". 11 .6.-11.1=111111 Milli ME MIMI 1400 1250 right 0.45 0.22 0.10 0.10 9 4.29 0.4 0.1152 NED 2.4 5.58 0.6 0.28 EC-2 -"„A f 1250 1050 ri•ht 0.45 0.17 0.08 0.18 9 4.29 0.8 0.1152 MEG 2.8 5.58 1 0 0.34 C. MN 1.1111 111111 NM Road D 1000 1470 left 0.45 1.50 0.68 0.$1 9 4.29 3.5 0.0261 MOD 2.3 5.58 4.5 0.78 *c -L o.st J a-, . 3--04 -2006- 0075- 45 Lue 4 w-est ALBEMARLE COUNTY COMMUNITY DEVELOPMENT f A P 1-41/41.^ ENGINEERING REVIEW FINAL PLANS CHECKLIST 28 June 2007 (Use the latest checklist at the time of submittal from www.albemarle.org) Instructions for the expedited review process are given in this color(magenta). The expedited review process is a plan standardization format,where everything is included on specific plan sheets. In return for a more complete and uniform plan,county staff agrees to a quicker review. The expedited process does not have additional requirements beyond those of a normal submission and review at the County. Application information: (applicable to any type of plan) Completed applications and fees (SDP, WPO, etc) [18-32.4.3.2, 18-32.3.9, 17-203, 17- 303] copies of federal and state permits (Army Corps, VDEQ, etc) [Policy] A completed copy of the standard stormwater maintenance agreement and fee for recordation for any stormwater management facilities [17-304E] copies of manufacturer's approval of the plan for any manufactured stormwater management facilities(filterra, stormfilter, sandfilter,etc.) [Policy] pro-rated share payment for any sites which drain to County regional stormwater management facilities. (This should have been identified with the preliminary plan/plat) [17-316] For expedited review please also include copies of easements for off-site work. (Any proposed improvement or disturbance within 5'of property lines, or any wall within one-half its height of a property line, requires a construction easement.)[Policy. Temporary easements may be plats,deeds,recorded documents,or letters of permission signed by the property owner.] Title information: (applicable to any type of plan) V project title [18-32.6.6] 0 professional seal, signed and dated for site plans, major amendments, stormwater plans, or road and drainage plans [18-32.6.1] V/ vicinity map [18-32.6.6] For expedited review please place all title information on a title sheet numbered T-1 and also include these items on the title sheet: the Engineering Review Compliance Certification,signed and dated index of sheets(a sample table is provided as Table 1) revision numbers with dates and descriptions(a sample table is provided at Table 2) Existing conditions information: (applicable to any type of plan) For expedited review please place the existing conditions information on a separate sheet number E-1. V accurate current existing topography at the time of submittal, including all existing site features, and any recent disturbances, all at a legible scale [18-32.6.6, 14-302] 0date and source of the topographic information: All topography should be at least visually field verified by the designer within the last year [18-32.6.6, 14-302, Policy for O date] benchmark location, elevation and datum for topography. An existing utility or other known position will suffice. [Policy] v WPO buffer limits; 100' from stream or wetland bank, 200' from reservoirs, or floodplain limit if greater [17-317] Albemarle County Engineering Final Plan Checklist Page 2 of 12 1/0", floodplain limits, including 100yr flood limits for any channel with a drainage area of 50+acres [18-32.6.6d, 14-302] Ne..� FEMA map and date references labeled for FEMA floodplain [Policy] /✓0A, skwiall existing easements(access, drainage, sight, sanitary easements, etc.)with deed book references, locations and dimensions [18-32.6.6, 14-302] all slopes 25%and over(critical slopes by County Zoning Ord.)are shaded [18-32.6.6, 14-302] Proposed plan view information: (applicable to final site plans, road and drainage plans) For expedited review please place the proposed plan information on separate sheets numbered S-1,S-2... For road plans alone,the plan view information can be provided on the same sheet as profile information,but at least one overall plan view sheet showing the entire project,road,topography,channels,etc. is needed. This is usually similar to what was shown on a preliminary plan or plat. Grading: [18-32.6.6, 14-303] ✓ proposed topography at minimum 2' contour intervals—tied into existing contours, as well as all proposed site features. (Sites with less than 6' of grade change should consider using smaller contour intervals.) ✓ proposed slopes are all 2:1 (horizontal:vertical)or flatter [Policy] proposed slopes steeper than 3:1 have low maintenance(not grass) ground cover specified on the plan [Policy] aexisting critical (25%) slopes are not disturbed,unless a waiver has been granted by the Planning Commission for the disturbance. [18-4.2, 14-304] N/,i retaining walls labeled with maximum height tv/a safety railing shown for retaining walls over 4' high [Policy] v/k guardrail with VDOT designations shown for retaining walls next to parking or travelways [18-32.7.2] Easements: [18-32.7.4, Subdivision Ordinance, Article IV, Division 4] i/ all proposed permanent easements, dimensioned and labeled Examples of easements are: h!1 A. sidewalk easements for sidewalks to be maintained with streets IV 14- private sanitary sewer easements for private lines crossing lots Al/k public sanitary sewer easements per ACSA v drainage easements for any drainage passing through the site from off-site, or for ^ drainage crossing proposed property lines. Ustormwater management easements over all facilities and associated structures and access access easements intersection or entrance sight easements drainage easements are a minimum 20ft wide,+2' for every foot of trench depth over 10', +1' for every 1' channel width beyond 10', or 1' for every 1' of pipe diameter greater than 2'. The pipe, channel or structure must be within the center third of the Q easement. [Policy to allow for adequate easement width for excavation] no structures or trees within drainage easements [Policy to allow for excavation] Entrances and right-of-way improvements: [per VDOT Subdivision Street Requirements] N4 all entrances with a VDOT designation(PE-1, CG-9a, etc) Mil' entrances do not exceed 4%grade for a distance of 40' from the intersected street, measured anywhere in the entrance [18-4.12.17] Albemarle County Engineering Final Plan Checklist Page 3 of 12 0 unobstructed sight distance lines at entrances, less than 10' x Speed Limit of intersected streets,measured from a point 10' off the edge of pavement of the intersected street /V - 12.5' minimum radii on entrances (or per VDOT requirements,typically 25'-35') 1VDOT approval is obtained for any plan affecting public right-of-way Ar— turn and taper lanes with lengths and widths labeled (taper at 12:1 with 12' lane widths) 'arking and circulation: [18-4.12] 100' on-site sight distanc is maintained by use of curbed islands a minimum 6' off building corners or oth- site obstructions. curbing on all parkin: areas and travelways with VDOT designations(CG-2, CG-6) oading and dumpst; areas accessible at all times(not behind parking) . parking rows p'.tected by curbed islands [Policy per 18-.4.12] mi 'mum 3' wid+ of curbed islands [Policy] all e I :es of pa -ment labeled(where there is no curbing) parkin. . eas i o not exceed 5%grade anywhere, in any direction parking 'd' x depth x aisle width is 9x18x24' or 10x18x20' (where a 2' grass overhang is .ossible parking spaces can be 16' deep per detail 2) parallel p: ki, . spaces are 9'x20' (with a minimum aisle width of 20') loading .paces : e 12'x25' (with a minimum aisle width of 24') travel -ays witho t parking are 20' wide measured from curb faces park' g places are -parated from entrances and streets(to prevent queuing onto streets)a mi mum 18' from b,ck of the entrance radius si.ewalk abutting park' g is 6' wide (exclusive of curb), or bumper blocks are provided :ee reference details) idewalks are a minimum ' wide, exclusive of curb one-way aisles have a 12' m t imum width. (One-way circulation is only permitted when approved with a preliminary si - plan) dumpster pads are 10'x10' with 8' in front for wheel bearing(total 18' depth) Drainage: [18-32.6.6d, 14-305, 311] A//f all proposed and existing storm sewer(with arrows indicating direction of flow where it is not otherwise evident) principle access free of flooding during the 100yr storm Op site runoff and entrances do not drain into streets 04 concentrated runoff(1 cfs or greater)does not run across travelways [policy] N/A drainage does not run across,through, or backwater in dumpster areas [18-4.12.19] v overland relief is provided for any drainage structure or inlet in case of clogging. The failure of any system will not cause structures or yards to flood. [Policy, info per 14-311, 18-32.6.6s] N 44 direction of flow change (or deflection angle) in each drainage structure is 90 degrees or `c_P greater(flow should not have to reverse direction) ✓• —C labels on all drainage structures provided(and should match the drainage computations vA r and profiles) Streets: [18-32.6.6, 14-304, Subdivision Ordinance Article IV Division 2, VDOT Subdivision Street Requirements] V all existing streets with labeled pavement and right-of-way widths,route numbers and street names all proposed streets,with right-of-way and street names ✓ stationing at 50' minimum on all proposed streets,matching the street profile Albemarle County Engineering Final Plan Checklist Page 4 of 12 ✓ street horizontal curve start point, end points and radii labeled, meeting standards(see the reference details) /11* turnarounds provided on all streets or alleys(see the reference details) ✓ street edge of pavement or curb radii labeled at all intersections and turnarounds(see reference details) NIA roundabouts designed per VDOT and ASHTO guidelines(see reference details) v V. guardrail over any slope steeper than 2:1,wall, or drop-off greater than 4', with start and end sections labeled, and VDOT designations(GR-2, GR-2a, etc.) pavement markings dimensioned and labeled k. 0 signs for traffic control shown and labeled: speed limit on all streets, stop signs at all cos; 1' intersections Itt,+k ✓ street name signs at every intersection [County Road Naming and Property Numbering Ordinance and Manual] OR street tree locations, species and height or caliper Plan detail information: For expedited review please place the plan details on separate sheets following the plan view sheets and numbered S-2,S-3...etc.,and use standard tables 3 and 4 for the traffic and pavement information traffic generation and distribution summary(ADT's) pavement designs Q typical sections for proposed channels with locations referenced from the plan view sheets lu/A sidewalk detail or specification to be a minimum 4" stone base and 4"concrete of 3000psi at 28 days,or stronger. [specs are policy per 14-422] LIIA dumpster pad detail or specification to be a minimum 4" stone base and 6"concrete of 3000psi at 28 days,or stronger, reinforced with a minimum grid of wire reinforcing or#4 bars at 12"on center. [specs are policy] NIX typical retaining wall details referenced from plan. A typical manufactures drawing for segmental block walls,or VDOT reference, is acceptable, with any applicable safety railings or guardrail shown. VI 4 details for any pipes or drainage structures through or under walls, showing endwalls, Ccasings, or structural measures to bridge pipes or structures Albemarle County general construction notes as given at the end of this checklist [policy] Street profiles: (applicable only to road or street plans) For expedited review please place the road profiles on a separate sheet numbered E-1,E-2....For plans which are only road plans,and not combined with site plans or other development plans,combining the plan view and profiles on one sheet,usually plan over profile,is fine. However,for expedited review,an overall plan sheet preceding these is still needed,to depict the entire subdivision or development,topography,roads,channels,etc. ✓ stationing at 50' minimum on all proposed streets,to match the plan view sheets ` proposed centerline ike f of existing ground centerline —114-50 labeled existing and proposed grade at each 50ft station point V vertical curves provided at all grade transitions vertical curve start, vertex and end points labeled of ----�� vertical curve length and K labeled at each vertex, meeting required design values(see / reference details) percent grades labeled for all road segments, meeting design values (see reference details) Albemarle County Engineering Final Plan Checklist Page 5 of 12 / rural street intersections continue the -2%intersected cross grade for a minimum of 20' from the edge of pavement of the intersected street. A low point is provided off the intersected street. [policy, following VDOT practice] t/ street grade is less than 4%for a minimum of 40' from the edge of pavement of the intersected street. (This grade can be within the first road curve which transitions from / the 2%intersected cross grade) [policy, follows ord. for travelways 18-4.12] J pipe and utility crossings shown and labeled --,0 cross drain locations shown and labeled with VDOT designations(CD-1,2)at every major cut and fill transition or sag curve ✓ the station of intersections are shown and labeled with the street names grades are a maximum of 6% in turnarounds �/,+ grades are a maximum of 4%through roundabouts Street details containing: (applicable to road or street plans) For expedited review,along with the typical details please place standard tables 4 and 5 on the plans for street and pavement designs. v typical sections for each street, street segment, or alley r pavement widths meeting design standards ✓ pavement crown at '/4":1' slope pavement surface,base, and sub-base thicknesses and materials N/A curb and gutter where applicable with VDOT designation(CG-6), and stone base of 6" 21-A or better(CG-2 also acceptable if a gutter is not needed for drainage) shoulder at 1":1' slope or flatter and 4' or greater width for rural sections I maximum slopes of 2:1 or flatter [policy] C guardrail over all fill slopes and culverts, with 3' additional shoulder,using VDOT designations(GR-?) t/ right-of-way/easement width, centered on street, meeting design standards I sidewalk location and widths,minimum 5' width,4"concrete surface, 4"21-A stone 1 base, with underdrains(UD-4, etc)per VDOT standards where applicable planting strip if applicable, 6' minimum width [14-422] 2h)'`'I k�� ditches dimensioned at 3:1 slope from shoulder, 1' depth min., and 4' min. width from 1;do° shoulder to ditch centerline, for rural sections h alleys have 12' pavement width,with 14' wide stone base [14-410] transitioning detail (20' minimum)for roll-top curbing in front of any inlets Albemarle County general construction notes for streets Drainage profiles: (applicable to site plans, road and drainage plans) For expedited review,please place the drainage profiles on the plan on separate sheets numbered DP-1,DP-2... Please use standard tables 6-11 for computations. [14-311, 18-32] e� . , drainage profiles for each pipe, structure or channel must contain: N` _�� existing ground 1 jt ale --„v proposed ground 6 c 2 —( / any channel linings /v IA all utility crossings a VDOT designation(MH-1, DI-3B, etc.) for each structure t/A throat length for each drop inlet �t/A grate type for each grate inlet Albemarle County Engineering Final Plan Checklist Page 6 of 12 N)A a label on each structure to correspond with the computations /i/A material and strength class or gage of each pipe NG4 manhole access every 300' for 15"-42" or 800' for 48"or greater N4 pipe slopes at 0.5% min. to 16%max. (per VDOT stnds for anchors over 16%) MA concrete inlet shaping (IS-1) specified on any structure with a 4' or greater drop itikt safety slabs (SL-1) in any structure taller than 12'. 714- top or rim elevation for each structure all invert elevations for each structure (with positive flow drop between inverts). end sections (ES-1) or endwalls (EW-1) on all pipe outlets. Endwalls for culverts 48" or ,� taller oy�l tk scour outlet protection at all outlets, corresponding to computations Q�Hof vi1 Drainage computations: (applicable to any plan proposing pipes, channels, etc.) For expedited review,please place the computations directly on the plan on separate sheets numbered DP-2, DP-3... Please use standard tables 6-1 l for computations. Wipe t .rrly1 . s ' 0 —Ctltpipes All proposed systems are designed within open channel full flow capacities. For systems within drainage easements, all proposed pipes are a minimum 15" in diameter There are no excessive outlet velocities (> 15fps) County Engineer approval has been obtained for existing systems which may exceed open channel flow capacity _ ; ' lercomputations for any curb inlets on grade All spreads are less than 10' carryover is accounted for 100%capture at entrances so no flow runs out entrances into travel lanes 100%capture-or overland flow of capacity storm to stormwater management facilties Cu• inlet computations for any curb inlets in sump conditions All flow depths are below 6" in the capacity table All spreads are less than 10' ISO. _. : . . . •- . 6 ' •w of capacity storm to stormwater management facilties Ditch computations for any ditches ditch linings specified per plans meet velocity requirements Culvert computations for any culverts headwaters< 1.5 x culvert height, and 18"below shoulder elevation of streets. Outlet protection computations for all outlets Ddimensions and stone sizes for all outfalls Proposed pipe and inlet drainage area map 0 limits of all areas and sub-areas draining to proposed structures, and existing structures or channels which will be impacted acreage of each drainage area as used in computations hydrologic coefficient for each drainage area as used in the computations t_ time of concentration for each drainage area as used in the computations destination structure labeled for each drainage area Stormwater management plan: (applicable to any plan containing stormwater management facilities) Albemarle County Engineering Final Plan Checklist Page 7 of 12 For expedited review,please place the stormwater management information on separate sheets numbered swm-1, swm-2... and place standard table 12 for water quality computations summaries on the plan. [17-303,304, and the Virginia Stormwater Management Handbook] Existing drainage area map: Existing conditions for site and off-site areas draining to proposed stormwater facilities (The stormwater management analysis should not include off-site areas which do not drain to proposed facilities) Drainage divides for all drainage areas to proposed facilities as used in computations acreage of each drainage area, labeled on the map area and matching comps coefficient used for each drainage area as used in comps time of concentration for each drainage area where applicable as used in comps Proposed drainage area map: Proposed conditions for the site and any off-site areas draining to proposed stormwater facilities(The analysis should not include off-site areas which do not drain to proposed facilities) Drainage divides for total drainage areas(not sub-areas)to proposed facilities, matching the computations. Sub-areas may be shown on added exhibits or sheets. acreage of each drainage area, labeled on the map matching comps coefficient for each drainage area, labeled on the map matching comps time of concentration for each area labeled on the map where applicable,matching comps for future development to be considered in the analysis, include assumed land uses, impervious areas, and hydrologic coefficients on the proposed drainage map Plan view and details: stormwater facility and site layout as shown on the site or subdivision plan sheets, preferably at a scale of 1"=30' or 1"=20'. 90%or more of site development captured in facilities for water quality(ordinance requires as much as practicle, 90%is a target) Albemarle County general stormwater notes facilities are not in the floodplain facilities are not in buffer areas facilities meet or exceed requirement removal rates facilities are off-line of major streams facilities are not built over any other utilities(sanitary sewer,water, gas, fiber optic,etc.) permanent stormwater management easement encompasses 100yr high water mark, all structures(embankments if present) and access flow is not short-circuited, flow path is 2:1 or greater in all water quality facilities, without the use of baffles or extended dikes Cross-section details of each facility including; embankments(between 3 and 25 ft in height) top width 8ft min., 10' for heights 15' to 20', 12' for dams over 20', heights measured from the outside toe upstream face slope 2:1 or flatter, labeled downstream slope 3:1 or flatter, labeled l0yr and 100yr high water elevations labeled with 1 ft freeboard for 100yr storm with emergency spillway or 2 ft freeboard without emergency spillway an impervious core a cutoff trench of minimum 4' wide, 4' deep and 1:1 sloped sides principle spillway Albemarle County Engineering Final Plan Checklist Page 8 of 12 riser crest 1' below emergency spillway if present riser crest stays within weir flow control during the 10yr storm trash racks over all inlets and controls to prevent clogging trash rack over riser crest is not flat(no DI-7's) riser size and materials labeled barrel size, strength,material, inverts and slope labeled all orifices,weirs or other control devices labeled with dimensions and inverts control orifices not more than 25%of riser perimeter at any point(does not affect riser structural integrity, 25% is a target) riser base size and dimensions labeled access to riser is provided(riser should be in dam, not free-standing) emergency spillway dimensioned and labeled invert labeled dimensions in control section dimensions in channel section provided if different than control section linings labeled and shown where applicable spillway over native soils, and/or sufficient armoring provided sediment forebays provided for all retention basins, constructed wetlands, and basin biofilters at all inlets sized to 0.25"of runoff per impervious acre (can be included in WQV) direct vehicle access provided biofilters with minimum floor dimensions labeled does not receive any stream base flows, and; areas of sheet flow into facilities are protected from erosion by appropriate scour protection stone or energy dissipation measure plants are shown and labeled with height or caliper 3 plant species are specified(3 trees if present, 3 shrubs)with sizes biofilter floor is 2.5%of impervious cover for type I,or 4%of impervious cover for type II 2.5' depth of sand/soil media 1.5' stone drain in geotech fabric under media, with 6" perforated PVC pipe to daylight 0.5'-1.0' ponding depth provided in facility overflow provided biofilter area is flat cleanouts are provided at the end of the underdrain pipe, and every 50' in subdivisions, facilities are in open space where present. In subdivision with no open space, facilities are out of yards and away from residences. Facilities must not be a nuisance in design or location. [17-304F] overland relief is provided for any facility in case of clogging. The failure of any system will not cause structures or yards to flood [17-304F] Retention basins have appropriate water quality volume; 3WQV for type I, 4WQV for type II. good base flow, or 10 acres or more drain to the pond normal pool elevation is labeled on plans 15%of WQV is a depth of 1.5' or less 15%of WQV is a depth of 1.5' to 2' 70%of WQV is a depth of 2' to 6' (greater depths are counted in WQV) Albemarle County Engineering Final Plan Checklist Page 9 of 12 a 10'-15' vegetated strip/safety bench is provided around the perimeter for Type III, a 10-15' wide and 1-1.5' deep aquatic bench is provided typical 10'x10' planting area specified for aquatic bench at least 3 species of aquatic plant used extended detention basin II (enhanced)has marsh zones normal pool elevation is labeled on plans 20%pool areas 1.5'-4' deep 40% shallow marsh 0.5'-1.5' deep,contains 1WQV 40%high marsh 0.5' deep or less as-built data is provided for existing ponds and drainage structures and facilities existing ponds and drainage structures and facilities are brought up to current standards (the rest of this list) vehicle access roads provided to all facilities access graded to 10' width and less than 20%grade minimum 10' wide permanent easement over access gravel surface or better for grades over 10% underground facilities have adequate manhole access at upstream and downstream points. manufactured pre-fabricated water quality facilities have a written approval of the plan from the manufacturer. minimum pipe sizes into and out of the facility are 15"diameter for maintenance Stormwater management computations: (Applicable to any plan with regulated by the Water Protection Ordinance) For expedited review,please place the computations directly on the plan and use standard tables 12 and 14,and provide graphs of routings for each regulatory storm(2yr, l0yr, 100yr) water quality removal rate computation summary for each facility detention computation summary for each facility channel computations for erosion and capacity for emergency spillway channels drawdown computations for any extended detention facilities riser floatation computations for risers which are not concrete, or are taller than 10' routing model and results for each detention facility hydrology for each facility used to generate inflow hydrographs including; hydrologic land use coefficients(CN, C), areas and flow times for the modified rational method,the critical durations used for the peak basin volume events for 2yr, l0yr and 100yr storms as closely as possible,the drainage areas represent the site development,and not off-site areas computations are provided for composite coefficients reasonable C values are used(0.25 for woodlands, 0.3 for pasture or pre-dev grass, 0.35 for dev. yards, 0.75 for gravel) times of concentration are representative of watersheds. If the omission of small sheet flow areas yields a higher peak flow,the small sheet flow areas are not used. Sheet flow should not exceed 200'. times of concentration generally decrease with development areas over 50 acres make use of more than one hydrologic method to verify computation of peak flows contour areas and elevations used for storage,matching the plans Albemarle County Engineering Final Plan Checklist Page 10 of 12 a stage-storage (elevation vs. storage volume)table with water quality volume requirements computed for facilities with volume requirements the hydraulic dimensions and coefficients for each weir, orifice, culvert or other control structure used in the routing model,matching plans flow control is maintained by the riser when present,not the outlet barrel pipe detention storage and routings are over and above water quality volumes Mitigation Plan (per the Water Protection Ordinance) For expedited review,please place the mitigation plan on separate sheets numbered MP-1,MP-2... existing conditions as shown on existing conditions sheets(can be to a smaller scale) proposed conditions as shown on the site or subdivision plan sheet outlined and/or shaded areas of buffer disturbance, with acreages labeled,matching the disturbances shown on the erosion control plan. outlined and/or shaded areas of mitigation,with acreage labeled for re-plantings, mitigation area is equal to disturbed area for channel restoration, 1' of restored channel for every 100sf of disturbed buffer. stations at every 50' min. with existing and proposed cross-sections provided for restoration planting plan for mitigation areas per Riparian Buffers Guidance Manual by CBLAD or the latest policy available from the County's Natural Resources Manager detail provided for typical spacing(i.e.20'x20'detail with placement). native plants used with species, size,root condition specified maintenance narrative and schedule on plan, including a completion date. All concentrated discharges treated or extended to adequate channels to preserve buffers. Erosion and Sediment Control Plan: (per the Water Protection Ordinance) For expedited review,please place the erosion control plan,narrative and computations on separate sheets numbered ESC-1,ESC-2... and use standard tables 15-16 for trap and basin designs. [Items taken from Water Protection Ordinace, Article I, and the Virginia Erosion and Sediment Control Handbook, minimum standards and specifications] Narrative: narrative and project title project description existing site conditions description adjacent areas description off-site areas description including any off-site areas for borrow,waste or other disturbance. special use permit for cut greater than 50,000cy in RA zoning soils descriptions County erosion control notes stormwater runoff considerations: this can refer to the stormwater management plan sediment basin design computations summary for each sediment basin sediment trap design computation summary for each sediment trap Erosion and sediment control plan: limits of clearing and grading encompassing all disturbances,entrances, staging and parking areas, areas where sediment laden runoff will cross, or any construction related activities. This must match any landscaping and conservation plans Albemarle County Engineering Final Plan Checklist Page 11 of 12 a construction entrance (CE) draining to a sediment trap or basin dust control symbols (DC) temporary and permanent seeding symbols(TS,PS) existing contours and topography existing drainage divides existing vegetation, with trees to be saved located by drip lines. This must match any landscaping and conservation plans protection provided forr all stages of construction no erosion control measures in the way of construction access or grading(Diversion dikes or silt fence are not placed in the middle of the site, or through access or grading. Sediment traps are not under or on top of fill. Construction entrances are not on fill, etc. If the concept for site protection is not adequate in this regard, further review of the plan may not be possible) existing soil boundaries are shown with labels. Areas already disturbed are indicated, with constructed fill depth or cut noted. critical erosion areas are identified; areas of constructed slopes, areas near property lines adjacent off-site disturbances are shown with erosion control facilities a stockpile location a staging and parking area, or other construction related areas diversion dikes are used to direct drainage to traps and basins silt fence is not used across contours in place of diversion dikes. silt fence is limited to areas of sheet flow with 1/4 acre per l 00ft of level on-grade silt fence temporary slope drains (TSD) or diversions are provided to prevent discharge over disturbed or fill slopes inlet protection(IP) on all inlets culvert inlet protection(CIP) on all culvert inlets outlet protection(OP)on all outlets all watercourses are protected and encroachments minimized stream crossing(USC,SC) and diversions are provided at all stream crossings. final contours are shown per the site or subdivision plan sheets critical erosion areas are identified;:areas of constructed slopes, areas near property lines WPO stream buffers shown and protected undisturbed. Disturbances require WPO Program Authority approval and a mitigation plan. Zoning Ordinance buffers shown and protected undisturbed. Disturbances require Planning Commission approval of a waiver. Floodplain shown and protected undisturbed. Disturbances require a Special Use Permit. final contour shapes and slopes ensure no undrained pockets or stagnant pools adequate channels (MS-19)provided for each outfall all swales and low points at the perimeter of the site have a.sediment trap or basin(If the concept for site protection is not adequate in this regard, further review of the plan may not be possible) all traps and basins are shown with proposed contours For each trap; drainage.area is 3 acres or less sized for total drainage area, including those for in-line upstream facilities wet storage is 67cy or more dry storage is 67cy or more Albemarle County Engineering Final Plan Checklist Page 12 of 12 wet storage is 4' deep or less wet storage side slope is 1:1 or flatter dry storage side slope is 2:1 or flatter stone weir is 6ft per acre of drainage area embankment and stone weir height is 5' maximum from outside toe embankment top width is adequate (see table 16 reference) 2:1 length:width ratio for flow path For each basin; sized for total drainage area, including those for in-line upstream facilities wet storage is 67cy or more dry storage.is 67yr or more wet storage side slope is 1:1 or flatter dry storage side slope is 2:1 or flatter embankment 15' high or less from downstream toe principle and emergency spillways sizedper handbook requirements embankment has 1' freeboard during 25yr storm with emergency spillway embankment has 2' freeboard during 25yr storm without emergency spillway trash rack/anti-vortex device specified per handbook requirements riser anchor size specified per floatation computation dewatering device sized for 6+hr drawdown of dry storage: 3"dia. minimum safety fence and signs stating"danger, quick sand, do not enter"provided if near any residential properties; or public access structures and embankment match permanent design for facilities to be converted to permanent stormwater management facilities embankment top width is adequate (see reference details) 2:1 length:width ratio for flow path. If necessary, baffles specified only on temporary structures' Details: a paved construction entrance detail(see reference details) a typical section for each temporary channel or diversion,referenced from the plan sheets. Existing ground should be shown at the maximum cross-slope on the plan. details and copies of Program Authority permissions for any variances. • Virg'n'ia Department of Transportation r-Pavement Design Guide © 1996 Appendix IV Flexible Pavement Design Worksheet for New Subdivision Streets This sheet is intended for use in conjunction with VDOT's Subdivision Street Requirements County 1t4"4,044.-0-e. Date: 6 -ZZ d Subdivision 04,44.41.4 /4) -• Street Name A.oq9 Phone: �71� _ Developer ADT Projected traffic for the street segment considered,as defined in the Subdivision Street Requirements. CBRD Design CBR=Average of CBRT x 2/3 and modified only as discussed in the Pavement Design Guide. CBRT CBR value of the subgrade sample,taken and tested as specified in the Pavement Design Guide DME VDOT District Materials Engineer EPT Equivalent projected traffic HCV Number ofHeavy Commercial Vehicles(e.g.trucks,buses,etc.,with 2 or more axles and 6 or more tires). %HCV Percentage of.the total traffic volume composed of Heavy Commercial Vehicles. RF Resiliency Factor=Relative value of the subgrade soil's ability to withstand repeated loading. SSV Soil support value of subgrade(SSV=CBRD x RF) Dp Thickness index of proposed pavement design computed by the Conventional Pavement Design Method DR Thickness index required,based on Design ADT and SSV,determined by Appendix II. :`D:eterrriine::Des n::AD ` Ste*>2 ::Deter mine:Desi`.n`Valiues: ADT CBR, RF:::and SSV Sample CBRT Resiliency Factor (RF) %HCV= 100 x HCV-ADT # 1 Source Value EPT=0.20(%HCV x ADT) # 2 Table 1 or # 3 Appendix I 20 x HCV Note:For # DME approved RF Note:For%HCV S 5%,use ADT %HCV>5%, # s EPT>ADT For preliminary designs,use the t 3 # lowest RF value in the equation Design ADT=greater of Z ,/o1540 CBRD x RF = <:5..:$1 ADT or EPT ::Ste 3 ;Pavement°Desi n:`:Ch�eck:o r*atebox:::aud:sl aw: �.ro osed>p v....;ent:desi >bel : >�:; ::.:...P...:.:. ... ..:...::.:::.:.:.......... ..:.$:::.�.::::.:..:.::.aFll :::::...:::..:.::.�::::.:.::.:.:. :p.:.:.P::..:::..:1'�.,et��.;:...:.:....:.g!?..:.awt� ❑ (A) Limited to Design ADT s 400-Show pavement material notations and thickness from Appendix IV Tables A and B. ❑ (B) Show pavement section as developed in the Pavement Design Guide. i DR= /J a / (See Appendix III for material notations and thickness equivalency values(a)). i from Appendix II Description of Proposed Pavement Section , Material Notation Thickness,h a (a x h) Surface Z " 5/11- Imo• ci' a • /37 3. 7y Base 2I44/ P7 / *O Subbase Dp must equal or exceed the value of DR. Dp=>(a x h)= . ... //i; 21 Virginia Department Of Transportation—Pavement Dcsri Guide ©1996 Appendix IV Flexible Pavement Design Worksheet for New Subdivision Streets This sheet is' ended for us in conjunction with VDOT's Subdivision Street Requirements County Date: 6 - 2,2_V Subdivision 0 Street Name / � b Developer / - Phone: 9 7 9. p'/Z/ ADT Projected traffic for the street segment considered,as defined in the Subdivision Street Requirements. CBRD Design.CBR=Average of CBRT x 2/3 and modified only as discussed in the Pavement Design Guide. (A/ CBRT CBR value of the subgrade sample,taken and tested as specified in the Pavement Design Guide DME VDOT District Materials Engineer EPT Equivalent projected traffic HCV Number of Heavy Commercial Vehicles(e.g.trucks,buses,etc.,with 2 or more axles and 6 or more tires). %HCV Percentage of the total traffic volume composed of Heavy Commercial Vehicles. RF Resiliency Factor=Relative value of the subgrade soil's ability,to withstand repeated loading. SSV Soil support value of subgrade(SSV=CBRD x RF) Dp Thickness index of proposed pavement design computed by the Conventional Pavement Design Method DR Thickness index required,based on Design ADT and SSV,determined by Appendix II. Step I Determii:ne,Desi9n:.AD T Step<2: Deters iineDesiign Values: ADT y :::..;:::R�:>:.>..F:and SSV::.... Sample CBRT Resiliency Factor (RF) %HCV= 100 x HCV_ADT # 1 Source Value EPT=0.20(%HCV x ADT) # 2 Table 1 or - # 3 Appendix I 20 x HCV Note:For # DME approved RF Note:For%HCV s 5%,use ADT %HCV>5%, # 11 For preliminary designs,use the EPT>ADT lowest RF value in the equation Design ADT=greater of CBRD x RF = SSV s ADT or EPT ( ) x ( i ) :Ste :: avement Deli n:::t h ck::..... ... . at i ox:and>show proposed p vement:: ❑ (A) Limited to.Design ADT 5 400-Show pavement material notations and thickness from Appendix IV Tables and B. ❑ (B) Show pavement section as developed in the Pavement Design Guide. DR= (See Appendix III for material notations and thickness equivalency values(a)). i from Appendix II Description of Proposed Pavement Section Material Notation Thickness,h a (a x h) Surface 2 t S'&' • 1! Sri 2- 1.67 3. 7 y Base Lit zi (Li 4 6;0 Subbase • I Dp must equal or exceed the value of DR. Dp= x h)= ?a 3 V 21 PROJECT: Ashcroft Weist Date: 11/16/06 Road: Summit Ridge Trail Station: 31+50 To 5 min - I CL Elev:524.83 010 = CIA = 0.45 x 6.67 x 1.0 = 2.94 cfs Shaylde'r Elev: lessikess1 - smeersess Inv Elev: 322.0 So: o.lobo Inv Elev: 516.0 L: 60' HEADWATER COMPUTATIONS CONT OUTLET CULVERT TYPE - & SIZE Q Inlet Con Outlet Control HW VELOCITY HW/D HW Ke dc (dc+D) /2 ho H ILSo HW ELEV CM Smooth IS' Rcp 3.0 0.5 1.0 0.5 0.71 0.95 0.95 0.4'8 1.0 0.46 923.0 7.7 DITCHES Ashcroft West ' n=0.03 n=0.05 6/21/2007 Sta 1, Sta 2 Side C A . CA inc CA acc To 12, Q2 S(ft/ft) V fps V fps 110 Q10 D (ft) Remarks A Summit Ridge Trail, ��EMI 3700 4000 left 0.50 0.27 ; 0.14 0.14 5 5.18 0.7 0.12 4.0 2.75 6:67 '' ' 0.9' 0.32 EC-2 3950 4200 left 0.50 0.21 0.11, 0.11 5 5.18 , s.'0.5;0.12 3.7 2.5 6:67 - ;0.7; '0.29 EC-2 4200 end left 0.50 0.17 ; 0.09 0.19 5 5.18 '.; .1.0'0.06 3.4 2.3 6.67 ; , •1i.3j 0.42 EC-2 3575 3250 left 0.50 0.20 0,10 0.10 5 5.18 .0.5;0.06 2.9 2.0 6:67 ;'0.7; 0.33 2475 2650 left 0.50 0.10 ° ;0,05 0.05 5 5.18 ',' 0;3`0.10 3,.0 2.1 6.67 ; : ,,,0.3; '0.22 2650 3000 left 0.50 0.26 ; 0,13 0.18 5 5.18 0;9'0.10 4.0 2.7 6.67 . .i '1,.2; 0.37 EC-2 1050 1250 left 0.50 0.14 0.07 '0.07 5 5.18 , : 0.'4 0.1152 3.5 2.4 6:67 i ;0:5 0.26 EC-2 . 3700 4200 right 0.50 0.26 0.13 0.13 5 5.18 ;0:7; • .9 'Q 0.12 4.9. 3.3 6.67 ' ;' 0 ' .42 EC-2 • 4200 end right 0.45 0.33 ' 0.15 0.28 5 5.18 ' ; ,-1:4 0.06 4,2 2.9 6.67 ;.;: `1 '9 i '0.57 EC-2 2475 2650 right 0.50 0.12 0.06 0.06 5 5.18 ' ;' 40:3'0.1q ^ 3.0, 2.1 6.67 : -,0.4i 0.24T 2650 3000 right 0.50 0.30 0.15 0.21 5 5.18 ,',,.'1,1 i 0.10 4.2 2.9 6.67 : ' ';1.41 0.39 EC-2 , i .5'IL i 1400 1475 right 0.45 0.09 0,04 0.04 5 5.18 :0:2i0.1200 3.0 2.0 6.67 ,0.3i 0.21 1,475 1875 right 0.45 0.76 3;., 0.34 0.38 9 4.29 ' ;:1';6,;0.0250 2,8 1.9 5.58 , "2.1; 0.59 , 3 1400 1250 right 0.45 0.22 0.10 0.10 9 4.29 - ' 0.4'.0.1152 3.5 2.4 5.58 , .` 0.6'' 0.28 EC-2 1,250 1050 right 0.45 0.17 0:08 0.18 9 4.29 , ` ,0.;8 0.1152 4.1 2.8 5.58 '' ';1'.0; 0.34 Road D-■■� -� i , 1000 1470 left 0.45 1.50 . 0.68 0.81 9 4.2.9 " ' 3 5'0.0261 3.4 2.3 5.58 ' ., :'4:5{ 0.78 COUNTY OF ALBEMARLE �oF ncv4 Review Submission Form Department of Engineering&Public Works ogi p c 40 McIntire Road,Room 211 " %4"� , LiI/ 1 Charlottesville,Virginia 22902-4596 �' !'"�, (434)296-5861 1; ' �N��s 1 (e� Fax(434)972-4035 / Project Name: As C go Fr w U5 From(Name or Firm): Date: 6 - 2 2-0 7 (Please separate plans for review by different individuals) 0 EROSION&SEDIMENT CONTROL PLAN or PLAN AMENDMENT ❑ First Submittal ❑ Revision ❑ Additional copies only -narrative(2 copies) - narrative(2 copies) (usually after approval) -plan(2 copies) - plan(2 copies) -application and fee ❑ STREAM BUFFER MITIGATION PLAN ❑ First Submittal ❑ Revision -plan(2 copies) - plan(2 copies) -application and fee ❑ STORMWATER MANAGEMENT/BMP PLAN ❑ Conceptual Plan ❑ First Submittal ❑ Revision -plan(2 copies) - plan(2 copies) -plan(2 copies) -computations;water quality -computations;water quality, -computations as revised (2 copies) hydrology,hydraulics,map(2 copies) (2 copies) -application and fee 2"-ROAD PLAN(PUBLIC OR PRIVATE) (all items, 2 copies for private roads,5 copies for public) ' { First Submittal ❑ Revision ❑ As-built -plan -plan -plans -pavement design sheets -pavement sheets -plats -computations(&maps) -computations ❑ FINAL SITE PLAN OR AMENDMENT (First Submittals are to the Development Process Manager) ❑ Revision -plans(3 copies,incl.retaining walls if applicable) -computations as revised(2 copies) ❑ CERTIFIED ENGINEERS REPORT (addressing each performance criteria of the Zoning Ordinance) ❑ First Submission ❑ Revision -letter and documentation -plans or sketches ❑ CBR REPORTS u Public Roads Private Roads -pavement design sheets -pavement design sheets (4 copies) (1 copy) ❑ TRAFFIC STUDIES Li Public Roads Li Private Roads (2 copies) (1 copy)