The URL can be used to link to this page

Home My WebLink AboutSUB201800171 Review Comments Road Plan and Comps. 2019-04-14COUNTY OF ALBEMARLE Department of Community Development 401 McIntire Road, Room 227 Charlottesville, Virginia 22902-4596 Phone (434) 296-5832 Fax (434) 972-4126 Road Plan review Project: Lewis and Drive Road Extension — Road Plans Plan preparer: Jonathan Showalter, Timmons Group f onathan.showalter(a timmons.com] 608 Preston Ave., Suite 200 / Charlottesville, VA 22903 Owner or rep.: University of Virginia Foundation / P.O. Box 400218 Charlottesville, VA 22904 [tmarshall@uvafoundation.com] Plan received date: 24 Sept 2018 (Rev. 1) 20 Dec 2018 (bluebeam digital) (Rev. 2) 27 Mar 2019 (bluebeam digital) Date of comments: 29 Nov 2018 (Rev. 1) 8 Jan 2019 (Rev. 2) 14 Apr 2019 Reviewer: John Anderson SUB201800171 1. C4.4-C4.5: Provide cross drains with VDOT designations (CD-1,2) at every major cut and fill transition or sag curve (Ref. Road Plan review checklist, pg. 4, item #6). (Rev. 1) Not Addressed. CD-1,2 does not appear to be shown in roadway profiles on C4.4, C4.5. (Rev. 2) Partially addressed. As follow-up: Please review profile and provide cross drains at every major cut and fill transition, and sag curve. For example: Sta. 22+35.47 (Low Point), 31+00, 32+25, 36+50 (transitions), 47+42.27 (Low Point), and 49+80. 2. C4.3: Provide Street Name sign. (Rev. 1) Addressed. 3. C4.3: Label stop bar. (Rev. 1) Addressed. 4. C4.1: Revise striping legend to include prop. directional arrow. (Rev. 1) Addressed. 5. C3.0 - C3.5: Remove erosion and sediment control notes, sequence, details, and plan sheets, since these will be reviewed and approved with WP0201800073. (Rev. 1) Addressed. 6. C2.0: Increase pitch of contour labels, so readable at scale of typical existing features. (Rev. 1) Addressed. 7. C1.0: Include ref. to WP0201800073 with General Construction Notes for Erosion and Sediment Control, and Albemarle County Stormwater Management Notes. (Rev. 1) Addressed. 8. Show /include Albemarle County Public Road Acceptance Procedure on Road Plans; link: http://www.albemarle.org/upload/images/forms_center/departments/Community Development/forms/Engin eering and _WPO_Forms/Road _ Inspections_& Acceptance- Public_ Road_ Acceptance_ Procedure_ 07- 26-2012.pdf (Rev. 1) Not addressed. Please remove Construction Record Drawings (As -built) for VSMP and include .PDF (Public Road Acceptance Procedure) listed at link, above. (Rev. 2) Addressed. 9. Show /include (MH) step detail, if not included. (Rev. 1) Not addressed. If added to sheet C1.1, cannot locate. (Rev. 2) Addressed. 10. Show /include VDOT safety slab detail, if not included. (Rev. 1) Not addressed. If added to sheet C1.1, cannot locate. (Rev. 2) Addressed. l l . Provide pavement design based on full build -out ADT. (Rev. 1) Not addressed. Applicant response (Rev. 1, 2): `Acknowledged. Pavement design will be provided when available.' (Rev. 2) Not addressed. Comment persists. Engineering Review Comments Page 2 of 3 12. C0.0 -Revise index (ESC sheets removed). (Rev. 1) Partially addressed. As,follow-up: Please revise index to remove sheet C9.0, which is included and bonded with the VSMP/WPO plan. (Rev. 2) Addressed. 13. XS-27 — XS-36: VDOT (11/8/18) review comment #5: "The provided typical sections appear to have gutter in sections that slope away from the curb and CG-2 in sections that slope toward the curb. Please explain." Code requires curb and gutter (shall be constructed with) in the development areas. Revise design for all stations with shoulder and ditch sections. Ref. VDOT Subdivision Street Design Guide, Appendix B(1), Table 1, Geometric Design Standards for Residential and Mixed Use Subdivision Streets, which applies to Lewis and Clark Road Extension. (Rev. 1) Addressed. Applicant response: `The road has been designed with superelevation in accordance with TC-5.11, 45 MPH Urban Low -Speed design standards. This causes some sections of the road to slope towards the center median. Inlets have been provided along the median where required. The current design allows for the construction of the western two lanes of the future 4 lanes full road section with a center median. Curb and gutter have been provided in all locations where it will also be necessary for the final 4 lane condition. Curb and gutter has been excluded along some sections of the road which will need to be modified for the future 4 lane widening. In the future, 4 lane condition curb and gutter or curb will be provided on both sides of the final road.' (144IO.H., text image, ` -low): H. Curb, curiid gutter, sidewalks and planting strips. In the development areas, streets shall be constructed with curb or curb and gutter, sidewalks and planting strips. Sidewalks and planting strips shall designed and constructed in compliance with section 14-422, GIS image, below -ial Park, dark blue, image below. C8.2: 14. Provide detail and specitications for pipe and MH bedding for sections of storm system entirely or substantially in fill. For example: structures 207, 205, 203 (pipes), and 206, 204 (MHs), 231 (pipe, C8.1), 255, 221 (pipes, C8.3). (Rev. 1) Addressed. 15. Revise 16.96% slope, Str. 201. See Drainage Plan Review checklist, pg. 2, 31 item. (Rev. 1) Addressed. Link: Engineering Review Comments Page 3 of 3 http://www.albemarle.org/upload/images/forms_center/departments/Community_ Development/forms/En ing eering and _WPO_Forms/Engineering Review_ Drainage Plans_ Checklist_1Dec2014.pdf From VDOT Drainage Manual: 9.4.8.7 Maximum Grades Slopes that incur uniform flow velocities in excess of 10 f ould be avoided because of the potential for ab 6sion. Slopes in excess of 16% are netpseferred because of the need for anchor blocks. When anchor blocks are used, they should be installed at every other pipe joint, as a minimum. (See Special Design Drawing No. A-73 and MA- 73 for Anchor Details for Concrete Pipe) 16. Provide 11/2" steel plate in the bottom of manholes, wherever applicable. (Rev. 1) Addressed. From VDOT Drainage Manual, p. 9-38, image below: u-v7 er 7o 9.4-Design Concepts Where "step down" manholes are used, the Drainage Designer should provide any needed protection to prevent deterioration of the bottom of the manhole. This protection can be provided by the addition of a % inch steel plate in the bottom of the manhole. This protection should be considered f trse4-t"Oear-diffefense between the inverts of the inlet pipe and outlet pip is 4' or greateii amr one f the following factors are present or anticipated: --� - • The flow is expected to carry any abrasive material • Continuous live flow or live flow lasting several days may be expected • The size of the main pipes is 48" or greater in diameter (for circular pipe) or the hydraulic opening is 12 ftz or greater (for shapes other than circular) Velocity dissipation is usually needed at the outlet of pipes on steep grades and the Drainage Designer should provide the type of dissipation appropriate for velocity, pipe size, discharge and site constraints. 17. Provide VDOT safety slab label for any structure/s with height greater than 12'; Str. 202, for example. (Rev. 1) Addressed. 18. Provide safety slab detail (SL-1); provide MH safety step detail. (Rev. 1) Not addressed. Also, see 9, 10, above. (Rev. 2) Addressed. 19. New: Please revise plan title to include reference to SUB201800171. Ifyou have questions, please contact me atjanderson2&albemarle.org or at 434.296-5832-0069. Thank you for your help and patience. J. Anderson SUB201800171 Lewis and Clark Drive Road Ext 041419 rev2