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Home My WebLink AboutSUB201900049 Review Comments Road Plan and Comps. 2019-06-28COUNTY 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: UVA Research Park Loop Road — Road Plans Plan preparer: Jonathan Showalter, Timmons Group fonathan.showalter(atimmons.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: 25 Mar 2019 (Rev. 1) 13 Jun 2019 Date of comments: 3 May 2019 (Rev. 1) 28 Jun 2019 Reviewer: John Anderson SUB201900049 1. Rev. C0.0 Note reading There are no critical slopes located within the project to read, `No steep slopes are affected by this project,' if that is the case. Preserved and managed steep slopes exist on this parcel, which is in the development area, and should be shown on CO. 1. (Rev. 1) Addressed. 2. Show managed steep slopes, C2.0. Ref. county GIS. (Rev. 1) Addressed. 3. Recommend ref. WP0201900021, UVA Research Park Loop Road VSMP Plan, on C0.0. (Rev. 1) Comment persists. Engineering recommends Road Plan sheet C0.0 ref. VSMP Plan WP020190021. 4. Include public road acceptance procedure on C1.0. Link: (Rev. 1) Addressed. httD://www.albemarle.ora/uDload/imaees/forms center/departments/Community DevelMment/forms/Engineerine and WPO Forms/Road Inspections & Acceptance - Public Road Acceptance Procedure 07-26-2012.pdf 5. Include VDOT IS-1 (Inlet shaping) detail on C1.1. (Rev. 1) Addressed. 6. Include VDOT PB-1 (Pipe bedding) detail on C1.1 (Rev. 1) Addressed. 7. Provide pavement design per VDOT 2018 Pavement Design Guide for Subdivision and Secondary Roads in Virginia (link: httn://www.vireiniadot.oru/business/resources/Materials/Pavement Design Guide for Subdivision and Se condM Roads.pdf ). (Rev. 1) Addressed. As follow-up: Although heavy duty asphalt section on C1.1 correlates with shading shown for entire extent of Loop Road (sheets C4.0 and C4.1), please include at least one label on each sheet (C4.0, C4.1) to reference heavy duty asphalt detail on Cl.l. Without labels, there is risk of error, risk that heavy-duty section may not be built. Also, please provide /list full build -out projected ADT on C0.0. 8. Provide pavement section with base stone, base asphalt and asphalt surface depth (dimension) labeled. (Rev. 1) Addressed. 9. Provide, show, and label VDOT standard barricades at turnout locations on west side of loop road (points of future connection /Encompass). A barricade is not required at 90-deg right angle in road, but at Encompass southern /northern entrances where proposed grades slope away. If these turnouts will not receive roadway extension within 12 months, provide GR-2 to limit damage or injury that may reasonably attend a loss of control incident at either location. Please provide barricade and GR-2 typ. details. (Rev. 1) Comment persists. Revised to read: `Provide, show, and label VDOT standard barricades at turnout locations on west side of loop road (points of future connection /Encompass). A barricade is not required at Engineering Review Comments Page 2 of 7 90-deg right angle in road, but at Encompassnorthern entrances where proposed grade slopes away.' Guardrail is not required at go -deg right angle in road, image, below (optional): 1 l / I VDOT �CG•S WITH � G UARD RAIL- MUTCO TYPE 4 I ARRICADE (5'X40'),.. �� - - l _ / I WITH R11-2 SIGN - - - - i VDQf S R1-1 STOP SIGN - a! R50' TYPE B, C �S 1 WHITE PAVEMENT Oa LINE MARKI 24" WIDTH r r - I r �VDOTSTD. R7_1 NO FHA I PARKING SIGN I $ — LOOP ROAD (PRIVATE ROAD) I A 24' SA } STUBBED OUT AND I r SAN SAN R214° y PLUGGED FOR I q1+00 W FUTURE i CONNECTION - - rI B'xB'TEE AND sq BLOW OFF ` B' GATE VALVES 5• SEMBLY (�fP.) rVDOT STD. R2-1 15 MF�H / r - SPEED LIMIT SIGN �UbOT STD. R7-1 NO R50 i PARKING SiGN / r e R5VDOT STQ'R1-1 STOP SIGN / 0' r! r / r ,—TYPES, C)A,SS 1 WHITE PAVEMENT � LINE MARKING, 24" WpTH I �lJ 1105 MPHOT TD.—� LIMIT Sir r 14 _ I V¢OT STD. R7-VN _V 9ARKING VON'V�O'F STD. R7-1 NO @5 PARKING SIGN TYPE SING 1 DOUBLEYECLOW I 1 Encompass northern entrance where grade slopes away: I 4 15, r — _ - n R25 Jr I CG-12 (TYP) - - N 25' — __�__y 21+00 GATE VALVE CROSSWALK (TYP) VDOT ST0. R1i NO J — CC-12 (TYP)_ _ _ _ PARKING SIGN BL OFF ASSEMBLy(TYP_) / FUTURE PRIVATE RIW I (TVP,) I I 10. Ensure SWM-related details (trash rack for SWM drainage structures and Contech ® Jellyfish Filter), C1.2, appear with WP0201900021 VSMP /WPO plans, as well. (Rev. 1) Addressed. Applicant response: `The plans have been revised and now include Stormtech chambers and stormwater treatment. These details have been added to the plans.' Engineering Review Comments Page 3 of 7 C2.0 11. Recommend provide label ref. to SUB201800171, Lewis and Clark Drive Road Ext. RP, similar to label ref. to UVA Research Park Sewer Extension project. (Rev. 1) Addressed. 12. Recommend increase text pitch of relevant labels too small to read with ease. (Rev. 1) Partially addressed. Please see second image, below —text is still too small to read. I � IT CAS ry'\ .YAT ALl — — — — —- y 4` L I ` \ \♦ ♦ ♦ `J 1 1 1 ♦ ♦ ♦ ♦ I 4 1 \ 1 7AX MAA,03201�Op-00-019gR0 1 C1NlVER$lTYOFb RGINI?&OUN94TlOAr so s s9� Ssb s8s\ '♦ ��.DS T,9-222,249&244RLAT l / / l / REMOVE VEGETATION AS NECESSARY (TYP. / / / f / � r % I I � r / r r l PROPERLY LINE Tb\ BE VACATED ♦ l[ l \ \ \ REPLACE'I LET TOP C4.0 "O�mlilu me.. ' 9 n �ti}EiyKEif*SrMFir�Ril��w�r*il� — �-"� memo }SrriR■}1aMMr*��`}M�} - •rr lr re lr. �r -- '� R}MMM}} •. a • • Engineering Review Comments Page 4 of 7 13. Align CG-12 ramps at Int. Loop Drive and Innovation Drive. Eliminate skew. Ramps and crosswalk should be in line with one another at this location. (Rev. 1) Not addressed. Please align CG-12 consistent with C1.1 detail, detectable warning installed on a radius (top CG-12 image, below; bottom image is a 2- street crosswalk crossing). Applicant response: `...we believe that the current design is in compliance with ADA "Advisory 405.7 Landings" and ADA "Advisory 406.6 Diagonal Curb Ramps". Landings should be perpendicular to the path of travel to allow for more acceptable cross slopes for ADA access. The ramp must come down perpendicular to the gutter pan/flow line so that the pedestrian does not need to traverse the slope of the gutter at an angle. Providing a landing before the gutter pan would require the ADA ramps to extend back to the north and south as much as 10' which would make it difficult to tie the current and future sidewalk from the west into the top of the ramp.' Re£ images, below, from an unrelated site plan. (Even these would require revision to indicate factory radius consistent with VDOT std.) Final Note: on recent VDOT /county bond reduction inspections, VDOT has identified proposed design as inconsistent with VDOT standard (C1.1); in several cases requiring constructive change. (Photos, pre /post, available.) V 5' I ST d�9T0P 1 as 9N3N \ 1 \ i pOtl P, my A 12. ALL CASES WHERE CURB RAMPS INTERSECT A RADIAL SECTION OF CURB AT ENTRANCES OR STREET CONNECTIONS THE DETECTABLE WARNING SURFACE SHALL HAVE A FACTORY RADIUS OR BE FIELD -MODIFIED AS RECOMMENDED BY THE MANUFACTURER TO MATCH THE BACK OF CURB. LANDING RAMP DETECTABLE WARNING 00 AT BACK OF CURB I SEE NOTE 12. I�— DETECTABLE WARNING TRUNCA INSTALLED ON A RADIUS DE Engineering Review Comments Page 5 of 7 Y J Q V) V) 0 Df U CURB j2. CROSSWALK A 4' SQUARE LANDING AREA OUTSIDE OF TRAVELWAY CURB °` SHALL BE PROVIDED FOR PERPENDICULAR CROSSWALK WITHIN THE MARKED CROSSWALK AREA. % CURB 4' BUFFER STRIP 5' SIDEWALK DIAGONAL PLACEMENT 14. Provide street name sign, even if unnamed, or name pending. (Rev. 1) Addressed. 15. Provide complete horizontal curve data in plan view; i.e. PC -PT, radius of CL curvature. (Rev. 1) Addressed. 16. Provide speed limit signs. (Rev. 1) Addressed. 17. Please clarify 'Future private R/W (Typ.)' label. Is Loop Road a proposed private street? If so, private streets may not intersect a public road at more than one location. If this is a loop road, it will likely intersect Lewis and Clark Drive (public road) at more than one location, and must itself be a public road. (Rev. 1) Comment withdrawn. Private street authorization request has been or soon will be submitted. 18. If Loop Road is a proposed private street, please ref. Ch. 14 for private street request procedure. (Rev. 1) Partially addressed. Applicant response: `Per email to Tim Padalino May 3 1 " road appears to be in compliance with county code. Please provide more information on what is required for this project.' Please ref. Tim Padalino email (6/18/2019 9:40 AM) to UVA Foundation /Timmons Group, for what is required. 19. C4.0 /C4.1: Recommend `Ped-crossing Ahead' signs for Loop Road in advance of crosswalks. (Rev. 1) Addressed. 20. Recommend caution sign on Loop Road prior to Innovation /Lewis and Clark that notifies `Emergency Fire /Rescue Entrance Ahead.' (Rev. 1) Comment withdrawn. C5.0: 21. Show proposed SWM Facility / Access /Drainage Easements. (Rev. 1) Partially addressed. As follow-up: Please revise labels that read 10' wide grass access road' and `drainage easement' to read `SWM Access Easement' and `SWM Facility and Drainage Easement.' 22. Provide curb break /mountable curb to provide SWM Facility Access (ACDSM, pg. 12). Provide access label or note on plan and linework with proposed grading that meets ACDSM standard, text image, be .., for dry pond Access (image removed with Rev. 1): (Rev. 1) Addressed. 23. Provide typ. detail, transition from CG-6 to mountable (rolltop) curb at point of SWM facility access. (Rev. 1) Addressed. C4.1 24. The same line is labeled 67' wide R/W and Future Private R/W. Please see item 17. Clarify. (Rev. 1) Partially addressed. Asfollow-up: Please restore 67' (private R/W) dimension wherever travel way width is 24'. Dimensional information has bearing on bond estimates, offsets, potential design conflicts, etc. 25. Provide `No Parking' signs at regular intervals, since no on -street parking. (Rev. 1) Addressed. Engineering Review Comments Page 6 of 7 26. 10' wide utility corridor may be sufficient to install utilities if water /sewer are located within roadway prism, as proposed, but wider utility corridor/s may be required if VDOT policy requires san./water utility lines to relocate outside the roadway prism. Note, for example, ACSA minimum horizontal separation for water and sanitary sewer facilities. (Rev. 1) Comment withdrawn. Applicant response: `The road is to be private and not a VDOT road.' 27. Provide plan note outlining sequence of removal for Ex. septic field, and that references any VDH permit number, or permit requirements that may guide construction in vicinity of area marked `Approximate Location of Ex. septic Field per plans...' (Rev. 1) Addressed. Applicant response: `The existing septic field will be removed as a part of the UVA Research Park Sewer Extension project.' 28. C4.2 shows proposed 8" PVC (SSWR) passing beneath multiple storm pipes. Please consider recent VDOT Culpeper bridge and drainage guidance concerning utilities placed over or under structures to be maintained by VDOT, and coordinate with VDOT to revise design as needed. (Rev. 1) Addressed. Applicant response: `The proposed Road is private. Per conversation with Richard Nelson, we will be allowed to run the proposed 8" SSWR under the storm pipe.' 29. C4.3 shows proposed 8" water line passing beneath multiple storm pipes. Please consider recent VDOT Culpeper District guidance concerning utilities placed over or under structures to be maintained by VDOT, and coordinate with VDOT to revise design as needef' (Rev. 1) Addressed. See item 28., above. C5.0: 30. Ensure dry pond design details on RP match design details on WP0201900021, or preferably limit design detail provided for dry pond on the Road Plan to conceptual outline, with ref. to WP0201900021 (Rev. 1) 31 Addressed. Applicant response: `Acknowledged. Plan set is designed as one package for construction and select sheets are added or removed to make up road plan and VSMP plan.' Label or delete blue circle lines. (Rev. 1) Addressed. 1 1 (My3 ) Aif V I to 1 1� V 1 1 5 l 5 4 5 % 1[ -" 32. Provide spot elevations and labels that ensure positive drainage in vicinity of right angle turn in road, to ensure westbound /entrance storm runoff on Loop Road reaches Str. 104. (Rev. 1) Addressed. 33. Revise inlet location or lengths since spread (T) > 8-ft at Str. 122, 212. (Rev. 1) Addressed. 34. C5.3: Provide cross drains per road plan checklist for reviewers, pg. 4 (`locations shown and labeled with VDOT designations (CD-1,2) at every major cut and fill transition or sag curve'). Design appears to require eight (8) cross -drains (2 sag curves, 6 cut/fill transitions). (Rev. 1) Addressed. 35. C6.0, C6.1: Remove from Road Plan. Include with VSMP /WPO Plan. Review comments for these plan sheets will be included with WPO plan review comments. (Rev. 1) Addressed. C7.0 36. Provide 95% compaction note for area of fill at Str. 112, profile Str 112 — Str 100. (Rev. 1) Addressed. 37. Provide profile, Str. 114 — 112. (Rev. 1) Addressed. 38. VSMP Plan and Road Plan Design Calculations & Narrative, 3/25/19: Engineering Review Comments Page 7 of 7 a. SWM Quantity Narrative —Include information highlighting (via prior -approved table, graphic, narrative, zoning, site, or WPO data) how eastern side of project drains to a large wet pond that was designed to handle stormwater quantity for the full build out of the research park. Recommend information identical to Timmons Group Lewis and Clark Drive Road Extension VSMP Plan and Road Plan Design Calculations & Narrative booklet, d. 3/25/19, pg. 18-19. (Rev. 1) Addressed. Reference calculation booklet, last pp. b. LD-204 (Rev.1) Partially addressed. As follow-up: items ii., iii., below — image, below: i. Revise at Str. 122, 212. (Rev.1) Addressed. ii. Check height of curb opening (typ. 5.5" or 0.46') (Rev.1) Not addressed. iii. Check d/h. Anticipate values < 1.0. (Rev.1) Not addressed. Please see image below. If review error, please notify; data in height of curb and d/h columns is confusing. DATE 6/10f2019 UNITS ENGLISH Sa is Onl G � < y a 5 nril � � � F Back/Lt. Back/Lt. Ahead/Rt. Ahead/Rt. r 1 0.166 0.0138 12.00289 1921 3.688 Weir Flow Back/Lt. Back/Lt. Ahead/Rt. i07 1 0.166 0.0138 12.00289 2.507 2.030 Weir Flow c. SWM routing comments will be included with WP0201900021 plan review comments. 39. New: Revise index by striking through C3.0, C3.1, C3.2, C3.3. ESC sheets not included with Road Plan. Ifyou have questions, please contact me atjanderson2&albemarle.org or at 434.296-5832-0069. Thank you for your help and patience. J. Anderson SUB201900049 UVA Research Park Loop Rd RP-062819revl