HomeMy WebLinkAboutSDP202000004 Review Comments Final Site Plan and Comps. 2020-02-14Phone (434) 296-5832
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SDP2020-00004
COUNTY OF ALBEMARLE
Department of Community Development
401 McIntire Road, Room 227
Charlottesville, Virginia 22902-4596
Fax (434) 972-4126
Site Plan review
Hampton Inn — Final Site Plan
John Wright, PE, Bohler Engineering / 28 Blackwell Park Lane, Suite 201
Warrenton, VA 20186 [ jwrightAbohleren,g com ]
Michael Sweeney, PT Hotel, LLC, 2000 Ware Bottom Spring Road
Chester, VA 23836 [ michael(abshaminhotels.com ]
8 Jan 2020
14 Feb 2020
John Anderson
Kevin McCollum / Zoning
C-105
1. LS-seal obscures date; please ensure text is easily readable (April 19, 2018).
2. Ex. 2 1 " RCP to be removed appears in conflict with floor of sediment trap. —Elev. 501' is top of new 24"
RCP permanent (and bypass?) storm pipe =floor of ST. Revise sequence or sediment trap design on VSMP
/WP0201900047 to provide sufficient cover between floor of ST and crown of 24" RCP, and to preserve
integrity of pipe bedding for 24" RCP. Locating RCP directly beneath active sediment trap may
compromise pipe bedding unless ST is equipped with impermeable liner. If proposed 24" RCP is not a
bypass and will not be installed until the sediment trap is removed, please clarify via plan notes and
sequence /narrative. For the moment, proposed 24" RCP permanent storm line appears to be a `bypass' as
well that permits the 21" Ex. RCP to be removed. If review error /misunderstanding, please notify.
(Engineering intends to issue WP020100047 comments not later than Wed, 19-Feb.)
3. C-201: Note 11 requires slight text edit (references two bypass pipes, a possible error).
C-301
4. Label curb types.
5. Review STM A-30 label /leader line.
6. Provide /label handrail at top of uppermost retaining wall.
7. Label CG-12 pedestrian ramp at SW site entrance.
8. C-303: Albemarle defers to VDOT review /approval of Maintenance of Traffic plan.
9. C-304: Note 3. Recommend Bohler Engineering rely on Kimley-Horn Associates design plan elevations
(for State Farm Boulevard /South Pantops Drive Sidewalk project; 2016), which are likely more refined
and accurate than County GIS. County GIS data layer may not be used as a basis of site plan design. GIS
data layers are available to the public for informational purposes only.
10. C-401: Proposed grading north of curb and gutter on the north side of site creates a channel, and
concentrates runoff. Provide ditch label, and design ditch at this location.
11. Engineering recommends revise design to divert dumpster enclosure runoff through a curb -cut to exit
without detention /treatment to newly graded slopes south of development. Recommend discharging minor
runoff (-19' x I V dumpster enclosure) to ground surface to bypass and protect the SWM system from
solids, refuse, debris, trash, grease, etc. that may, with current design, be conveyed into subgrade systems
and degrade or impede performance of the detention system. Any obstruction or short-circuiting may be
recurrent, persistent, and difficult to address later, yet avoidable at the design stage.
Engineering Review Comments
Page 2 of 2
C-502
12. Note: Storm lines proposed to convey State Farm Blvd. runoff (source: public RW) across the hotel site
require public deed of dedication of easement, and platted public drainage easement. Complete easement
plat application at earliest convenience.
13. Recommend relocate STM A-20 and STM A-30 labels to more clearly identify structure location.
14. C503 /Re. 10-yr HGL computations:
a. At STM A-59, compare outlet WSE 510.28 with 508.50' crown of pipe
b. At STM A-60, compare outlet WSE 510.45 with 509.50' crown of pipe
c. At STM A-79, compare outlet WSE 510.28 with 509.25' crown of pipe
d. At STM A-80, compare outlet WSE 510.46 with 509.55' crown of pipe
Design must ensure flow is open channel regime, not pressurized, unless design provides notes,
specifications, labels etc. to ensure watertight fit (fittings, gaskets, seals, etc.) from pipe subgrade to
rim elevations. 10-yr HGL computations table appears to indicate pressurized flow.
15. Show STM A-59 and STM A-79 labels in plan view.
16. C-902: Provide VDOT IS-1, ST-1, PB-1 details on plan.
Please feel free to call if any questions: 434.296-5832 -0069
Thank you
SDP2020-00004 Hampton Hotel FSP 021420