HomeMy WebLinkAboutSUB202100149 Review Comments Road Plan and Comps. 2021-10-19�q off nig 401 McIntire Road, North Wing
Charlottesville, VA 22902-4579
County of Albemarle Telephone: 434-296-5832
COMMUNITY DEVELOPMENT DEPARTMENT WWW.ALBEMARLE.ORG
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Road Plan Review
Project title: HTC Area C Townhomes, Block II — ROAD Plan
Project file number: SUB2021-00149
Plan prepares
Shimp Engineering, 912 E. High St., Charlottesville, VA 22902
Keane Rucker, FIT, keane(a),shimp-engineering.com
Justin Shimp, PE, Iustin(d,)shimp-engineering.com
Owner or rep.:
Post Office Land Trust, AnnMae Holdings LLC
Charles Wm Hurt and Shirley L Fisher, Trustees
charlie(i�virginialandcompany. com
P. O. Box 8147, Charlottesville, VA 22906
Plan received date:
7 Sep 2021
Date of comments:
19 Oct 2021
Reviewer:
John Anderson, PE
SUB202100149
1. Add detail for the yard drain structures.
2. C3
3. C4
a. Ensure CG-12 ramp on SW side of Zinnia Crest is entirely within public RW of Berkmar Drive.
b. Provide `No parking' signs between driveways/parking spaces where street width does not meet
standards for street parking
c. Label lots for ease of reference.
d. Please revise sheet title to site layout.
e. Revise `ribbon curb' label to CG-7, recommend label reference CG-7 (roll top) detail on C13.
f. Trim /revise steps at two lots, Connor Drive, that encroach on existing sidewalk.
g. Road name signs cannot be located on top of stop signs. Please refer to the Road Naming Manual
for locations (Part IH, Section 3, Location of Post and Sign).
h. Add a road name sign for the Zinnia Crest and Orchid Bend intersection.
i. Remove the stop sign on Orchard Bend at the Flora Bend intersection.
j. Add speed limit signs at both entrances. Consistent with AASHTO, the speed limit must be posted
at 15 MPH.
k. Recreation area trail is shown passing over the yard drain. Please relocate.
a. Drive entrances do not appear to meet VDOT CG-9B geometry. Ribbon/roll-top curb cannot
extend through driveways. Each driveway must have a CG-9 entrance that meets VDOT
standards. Add note to this effect and show concrete entrances that match the standard VDOT
detail on the plan sheets.
b. Relocate 12" HDPE in conflict with structure elements for units facing Timberwood Blvd. Also,
move 12" HDPE pipe along edge of end unit outside of the lot (highly recommended), or center
pipe within the drainage easement at a minimum. Label this easement as a private drainage
easement.
c. Linework for "new 6' drainage easement" behind Lots 34-42 isn't showing. Please turn on or add.
Label this easement as a private drainage easement.
d. Label all drainage easements as being private.
4. C5
5. C9
6. C10
7. C12
8. C13
9. C15
Thank you.
Engineering Review Comments
Page 2 of 2
e. Building comer on Lot 26 appears to conflict with ACSA easement. Adjust building but also
ensure 18-ft deep driveway is provided.
a. Label streets for ease of reference.
b. Please evaluate flow line depth at Lot 34 and lot 49 to ensure drives will not flood. 28' vertical
fall between Berkmar Drive and inlet at 4 parallel parking spaces on Flora Bend poses driveway
entrance flooding concern.
c. Evaluate Lot 50 drive entrance flow line depth. Ensure no flooding of drive entrance during
design event.
d. Light grayscale spot elevations for several lots on Orchid Bend are inconsistent with proposed
grade. Please reconcile.
e. Recommend spot shots, consistent with proposed grade, lots 27-56, to help ensure construction
prevents drive entrances from flooding.
f. Proposed grade on SE side of Lots 27-33 is somewhat ambiguous: stairs are shown, indicating
substantial grade change, lots 30-33, a grade change that appears to require grade steeper than 3:1
at lot lines immediately adjacent to existing sidewalk. Provide linework, labels, etc. to clarify
design intent. Proposed grade may not exceed 2:1.
a. Relocate tree at CG-12 at radius in Flora Bend to provide separation between ramp /walk and
street tree.
b. Provide notes that requires limbing those trees at 70'R curves may obstruct Min. 95' stopping
sight distance to allow travelers on travelways to safely stop for vehicles exiting unit drives.
c. Label proposed grade on Lots 30-33 at existing sidewalk. If steeper than 3:1, propose permanent
vegetation hardier than grass (groundcover).
a. Review and correct profile labels, all profiles have the same label "Storm Profile Al -AT"
b. Provide note re. compaction for pipes and structures in fill, specify compaction consistent with
VDOT standards. 8" HDPE line is quite susceptible to deflection unless compaction specified.
a. Provide stopping sight distance sight lines at internal stop intersections.
b. Show sight distance easement over lots where the sight distance line is located (Lot 27 & 28).
Show on all applicable plan sheets.
a. If C13 roll top curb detail corresponds with ribbon curb, revise ribbon curb labels (0) to read
`roll top' curb. Note that rolltop curbing is not allowed at driveway entrances.
a. Update all road section captions to coincide with street names assigned to roads A and B.
Please call if any questions — tel. 434.296-5832-x3069, or email 4anderosn2(a)albemarle.org.
SUB202100149 HTC Area C Townhomes block II RP-101321—rev101921fp.doc