HomeMy WebLinkAboutSUB202000098 Correspondence 2020-10-19 (3)SHIMP ENGINEERING, P.C.
Design Focused Engineering
September 21, 2020
John Anderson, PE
County of Albemarle
Department of Community Development
401 McIntire Road, North Wing
Charlottesville, Virginia 22902
RE: Response Letter #2 for SLTB202000098 Galaxie Farm Road Plan — Engineering
Dear John,
Thank you for your review of the Road Plans for Galaxie Farm Subdivision. This letter contains
responses to County comments dated September 3, 2020. Our responses are as follows:
C1
2. Note: Please submit WPO plan for development at earliest convenience. WPO received
(WPO202000037).
Add eessed
C2/C3
3. C2 does not clearly indicate two parcels. There are two parcels. Please show current parcel
boundaries.
Addressed.
4. Label Cow Branch.
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5. Label steep slopes (preserved /managed). As follow-up: Provide Exhibit for portions of slopes
currently shown on steep slopes overlay district that design wishes to consider < 25% (for
example, Lot 65). A plan label does not effect removal of steep slopes from the overlay district.
Provide field survey elevations, steepest grade, date of survey, survey firm, area (sf) and limits of
steep slopes proposed to be removed from the overlay district.
Disturbance of preserved slopes overlay (regardless on actual slope) is no longer proposed.
Removal/revision of overlay no longer proposed. Notation revised for consistency.
6. Note: If roof runoff is proposed to be collected and conveyed via leader lines to drop inlets or will
intersect proposed 15" DIA storm lines, show leader lines.
Addressed:
Please consider recent Building Inspections Div. guidance which may influence design of
retaining walls or affect plan approval. Albemarle County Building Official advises that:
"Retaining walls shall either be independent and terminate at the property [read, lot] line or an
easement and maintenance agreement shall be executed between property owners involved." We
mention this now so that it does not cause issues, or delay or impede subsequent plan (or building
application) reviews /approvals. As follow-up: Please see item 11; Albemarle is not party to wall
912 E. High Sr. Charlottesville, VA 22902 1434.227.5140 1 shimp-engineering.com
C4
Maintenance Agreements, but needs to confirm Agreement is recorded (with covenants and
restrictions, for example)
Noted, we appreciate the advance notification on this. Agreement will be completed before
subdivision plat approval, legal references will be listed on subdivision plan. We have added
this to our internal management checklist to avoid future plat approval delay.
8. Label lots. Also applies to C7, C8.
Addiressed:
9. Please examine remnant existing and proposed contours on Lots 7-11. Provide storm runoff
capture /conveyance such that surface runoff does not cross more than 3 lots, without capture
/conveyance. Ref. Drainage Plan Checklist for plan reviewers, p. 1, Drainage section, last item.
[yard inlets appear to be required].
Aa
10. Lots 53-56 runoff is shown sheeting across Road E. Provide drainage to intercept sheet runoff and
convey via street -side pipes or yard inlet pipe system. Design must prevent offsite runoff from
traversing Road E street surface.
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It. Provide temporary (off -site) construction /permanent grading easement/s as needed to construct
proposed retaining wall across parcel lines, Lots 1-7. As follow-up: While Albemarle is not party
to wall maintenance agreements, per building inspections division directive, CDD must confirm
an agreement exists, and is recorded. Please provide deed book -page ref. to retaining wall
maintenance agreement prior to final plat approval
Noted, we appreciate the advance notification on this. Agreement will be completed before
subdivision plat approval, legal references will be listed on subdivision plan.
12. (C7, C 12): Calculate depth in roll-top gutter, Road E. Ensure runoff does not enter driveways
(esp. Lots 57, 58).
Aa
13. C3, C4: 8' wide ditch crossing lots 23 thru 38 is an infeasible design. Revise surface ditch to
subsurface drainage (inlet /pipes). Owner of multiple lots may flatten obscure ditch and disrupt
drainage since each lot has such limited lawn area. A surface ditch design crossing 15 lots will
not in this instance be approved. (Recall homeowner resistance to Swale construction across lawn
areas at Hillbrook Subdivision.).
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14. Similarly, provide subsurface storm runoff collection /conveyance for Lots 15-22.
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15. Ensure storm runoff from impervious areas, Lots 15-38 is conveyed and treated or detained, as
needed, to comply with state or local code, including MS-19. It appears a necessity that given
close proximity to property line to SW that impervious rooftop storm runoff must be collected,
since splash block -only discharge cannot transition to sheet flow in limited space available (Lots
15-22, especially). As follow-up: Per county engineer guidance, provide spot elevations and
proposed grade lines to ensure capture at Sir. E7C.
Additional grading details/considerations added to this area.
16. C4:
17. Provide guardrail, Road F, at stream crossing. Alternatively, provide 12:1, 4'-wide graded
shoulders before transitioning to steeper embankment grades. Infrequent use reduces but does not
eliminate risk posed by unrecoverable slope with z7.25' vertical drop to streambed. As follow-up:
912 E. High St.. Charlottesville, VA 22902 1434.227.51401 shlmp-engineenrig.rom
Please provide deeded easement across Avinity property that grants Galaxie Farm right of access
to off -site fire access.
Easement will be provided prior to approval, we are in the process of obtaining this.
18. C4 (C6, C8): Ensure lots are located entirely outside the (100') stream buffer. Ref. ZMA Sheet 7,
Note F. Portions of Lots 57, 58, 59 appear to be within stream buffer.
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19. C5: Provide additional preliminary design detail for transition from Road A2 to Ex. Galaxie Farm
Lane which provides access to multiple parcels beyond proposed development. Note reading
Connect Galaxie Farm Lane to new road is insufficient for an existing road that must remain in
continuous use. Compare spot grade at transition to Galaxie Farm Lane at end of Road A2 to
existing Elev. of Galaxie Farm Lane. Provide preliminary travel way design and drainage to
ensure smooth transition. As follow-up please see item 52, below.
Acknowledged, please see response to comment 52, below.
20. C5, C6 (Subdivision Layout), and C7, C8 (Grading and Utility Plans) mix incomplete views of
easements, and utilities. For example, C5, C6 show ACSA easements, but not all. For example,
C5 does not provide ACSA waterline easement south of Road Al in the direction of Rt. 20, to
include new FH near Int. Rt. 20. New ACSA water easement is shown along Road E, with utility
schematic (C7), allowing easy check of easement. Provide and label all utility easements on C7,
C8.
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C5/6
21. Show /label CG-12 ramps wherever sidewalks intersect roads [@ intersections of Roads: B1-A2,
132-A2, B1-Al, Al-D, 132-C, C-E, at entrance to parking area SE of Open Space C].
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22. Provide and label traffic control signs: stop, no parking, speed limit.
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23. Provide and label street name signs.
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24. Show intersection sight distance lines for internal street intersections.
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25. C5
a. Lot 60: Provide Auto -turn figure to show vehicle reversing from driveway clears N-bound lane
completely before advancing in a forward direction. If Road E is insufficient length, a typical
passenger vehicle will strike curb or run off Road E before it clears N-bound (in -bound) lane.
b. Provide fixed barriers both as pedestrian protection and to prevent vehicles from running off
the end of Road E. A curb -less design at N end of Road E cannot be approved. Provide guardrail
pedestrian protection between end Road E, and Road Al sidewalk. Provide curb at end Road E.
c. Lots 57, 58: Drive entrances propose acute angles (>90-deg). Provide Auto -turn figures to
show a typical passenger vehicle may enter driveways without running off paved drives and onto
lawns.
d. All subdivision Lots: Related to 25.c., revise all driveway widths to 12' (Absolute Minimum;
see VDOT CG-9D). Also, item 40 below. Please apply CG-9D Min. drive width to this/future
design.
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912 E. High St.. Charlottesville, VA 22902 1434.227.51401 shlmp-engineenrig.rom
e. Lots 48-50: Driveway entrances problematic relative to angle with cul-de-sac, or location in
radius curve sections of curb. Provide perpendicular driveway /street intersections. Relocate
driveways out of curved sections of cul-de-sac curb.
f. Show sight distance lines (left/right; NE/SW) at Int. Road Al and Route 20. As follow-up: C20
indicates `topo profile from GIS, data to be verified.' Please verify design provides adequate sight
distance at Rt. 20 development entrance based on field survey data.
Subsequent field visits by Shimp Engineering staff have verified the physical sight distance.
g. Label highlight line -type, image below. If an easement or setback, this line intersects structures
(likely impermissible).
Withdrawn.
26. C5(-C13, 8 sheets): Show driveway entrance radii graphically. Additional comments possible.
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27. Carry-over review comment, SUB201900198: `(220120, Revised) Revise cul-de-sacs, Roads D1 and
D2 to 45' Min. Ref. VDOT Road Design Manual, Appendix B(1)-3, Roadway Geometric Design Criteria, B.
Local Roadways, 1.: A single -unit (SU) truck design vehicle, as defined by AASHOT, should be used for
the design of all local subdivision streets. Dimensions far this vehicle are depicted in Figure 2-2 of
AASHTO Geometric Design of Highways and Streets 2011, shown in Figure 1. Note: Fig. I shows path of
front overhang of a single -unit (SU) truck design vehicle Min. radius=43.5'.
(New, Feb 12, 2020 1:54 PM email) Using a SU design vehicle then, there is option of: 45' R,
which meets VDOT RDM B(1)-24 with proposed Road D.1 / D.2 FC/FC street width =24'; or
30' R cul-de-sac with FC/FC street width =30'. Either is acceptable. To provide neither would not
meet AASHTO /VDOT RDM, or ACDSM requirements. To provide one or the other also
alleviates concern relating to parcel deliveries (ever more common) and waste management
access needs outlined in email sent 2/7/2020 8:48 AM (below). Albemarle defers to VDOT
/ACF&R should either impose requirement for radius > 30'. Road plan design should
accommodate whatever these review, transportation, and emergency response agencies require.'
RDM, Appendix B(1) Fig. 1. (Rev. 1) Not addressed. Applicant response: `Noted, we have
coordinated with, and received blessing form VDOT & Fire Rescue on cul-de-sac radii.' 30' R
cul-de-sac corresponds with FC/FC street width>30'. Revise street width to 30', FC/FC. Also,
email sent 2/12/2020 1:54 PM (re. SUB201900198), 8/31/2020 8:01 PM.
These AASHTO guidelines cover vehicle turn paths, not necessarily turnaround
requirements. This subdivision street (nor most subdivision streets) are not designed for
single unit truck continuous turn, rather, to allow single unit truck adequate space to turn
around using a 3-point maneuver. Reference VDOT appendix B(I) text on page B(1)-24: a.
Curcular type turnaround: "For circular turnarounds on short low volume residential
cul-de-sac streets, this minimum radius may be reduced to 30 feet when specifically
approved by the locality in consultation with emergency services. (See FIGURE 4
CUL-DE-SAC AND TURNAROUNDS)" (Figure 4 Image on next sheet). Turn radius
dictates CL and curb radii, and informs cul-de-sac sizing, however regulations do not
require a box truck to turn without reversal at the termination of a short low -volume
subdivision street.
Figure 4 from Appendix B(1) page 25 sheet specifically shows that the circular cul-de-sac
turnaround movement utilizes a 3-point maneuver, not a continuous turn. This are VDOT
subdivision regulations, and this particular design for Road BI and D has been accepted by
VDOT staff. This has been accepted on other short low -volume subdivision public streets
(for example Crozet Court). Design will not be revised, as it meets regulations.
912 E. High St.. Charlottesville, VA 22902 1434.227.51401 shlmp-engineenrig.rom
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d. Temporary turnarounds and stub streets.
A turnaround should be provided for any temporary or stub street longer
than 150' from the point of intersection to the end of pavement.
Any portion of the turnaround outside the dedicated right of way for the
stub street may be placed in an easement.
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Circular Type Center Unpaved Center Unpaved
Turnarountl Offset Bulb Cul-de-sac
Concentric Bulb Cul-de-sac
Note For circular turnarounds on short low volume residential wl-de-sac wrests
the 45 R. minimum radius may be reduced to 30 feet when specifically approved
by the locality in consultation with emergency services
T . Type 8ndnCh Tyne
Alternative Turnaround
FIGURE 4—CUL-DE-SAC AND TURNAROUNDS DETAILS'
e RM.120
28. Provide details, plan labels (or both) for: a. Knox box (Road F), b. Bollards (Road F).
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29. Label distance along Route 20 to nearest street intersection (both directions).
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30. Provide curb extensions for parallel parking, Road B2; see design standard at VDOT RDM, B(1),
pg. 59 (pg. 61 of .PDF).
Addressed:
31. C7/C8, Grading and Utility Plan: [SUB201900198 review. If addressed w/ ROAD plan, please
disregard]:
912 E. High St. Charlottesville, VA 22902 1434.227.51401 shimp-engineenrig.rom
a. (2/20/20, Revised) Engineering cannot recommend preliminary final plat approval of 2 x 60"
HDPE w / headwall at Cow Branch. Please provide additional design information for this
crossing; design for the 25-yr event. For perspective, please see photo d. 7/27/18 (by Albemarle),
below, which shows drainage structure beneath Rt. 20 upstream of proposed Road A.1 crossing.
As follow-up: Pg. 12, 13 of Road Plan SWM Calculation packet (7/31/20) clearly indicate Q25-yr
design, but LD-229 table values (p. 15 /Calc. report) are confusing since pipe capacities (culverts
A, B, Q 10) appear < total 10-yr design values. Engineering assumes Q25 design would similarly
exceed culvert A, B pipe capacity since Q10 appears to exceed pipe capacity. Engineering may be
misinterpreting LD-229 table, would be grateful for clarification.
This portion of the LD-229 had several typos for pipe capacity and has been corrected.
Additional notation on design flows added to table for clarity. Pipes confirmed to have
capacity for the 25-yr design storm (both rational method and regression peak flows).
b. ACSA Sanitary Easement may impede ability to develop Lots 29, 41, 31, 33, 35, 37, and 39, as
intended with current design.
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c. ACSA Waterline Easement may impede ability to develop Lots 58-61, as shown.
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d. Label roads. New: Label lots.
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e. Note existing natural drainage that clips end of Road A2. Provide conveyance of storm runoff
that transits this natural drainage feature in the post -developed condition.
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I. Avoid nuisance ponding on any private or public road; for example in circular /bulb portion of
Road B (south end Road E). Provide inlet capture and adequate conveyance at this location.
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g. (2/20/20, Revised) Provide inlets and piped drainage of runoff, Road E. Withdrawn (email,
2/6/20, 6:12pm).
Addressed:
h. (2/20/20, Revised) Engineering recommends care with design of private drive entrances to
dwellings along Road E. Storm runoff collection and conveyance applies to Road E. Also,
comments elsewhere. Withdrawn (email, 2/6/20, 6:12pm).
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i. Provide /show /label public drainage easement at NE comer Int. Road D and Road Al (Open
Space). Note: A portion of public drainage, Str. D3 — D 1, lies outside public ROW.
Addressed. Note: natural stream restoration removed.
j. Provide /show public drainage easements crossing Lots 29 and 61.
Addressed
k. Provide storm drain inlets at low point /sag, Road Al. As follow-up: Depict Cl outfall at
headwall in Road Al profile between 48"-60" dbl. pipes. Also, please depict headwall spanning
48"-60" dbl. storm culverts in this profile view. Images, below.
Noted, these requested items depicted in profiles.
1. Remove entirety of proposed SWM facilities from stream -ward 50' of Cow Branch stream
buffer.
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in. Show proposed grading, Road F; utilize 1' design contours, if necessary.
Addressed:
912 E. High St.. Charlottesville, VA 22902 1434.227.51401 shlmp-engineenrig.rom
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n. (2/20/20, Revised) Provide design for Cow Branch crossing, Road F. Size pipe /culvert to pass
the 25-yr event without overtopping Road F (Emergency Access). New: County email to Shawn
Maddox, ACF&R, 2/20/2020 11:07 AM requests guidance on ACF&R access needs relative to
existing pipe at stream crossing along dedicated fire -rescue access (2nd point of subdivision
access).
o. New: Relocate private waterline laterals outside public ROW, all lots.
p. New: Coordinate with USAGE. Provide copy of Nationwide or Virginia General Permit to
perform construction in live stream (Cow Branch). (Rev. 1) Persi
Confirmation of Nationwide 18 nonreporting permit, with USACE exhibits and
correspondence, sent to you on 09-22-2020 at 5:35 pm.
32. Provide Class B — Type I primitive trail section (Ref. ZMA, sheet 9; image below).
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33. Road Al profile: Label drainage structure dimensions /material type, INV elev., top of structure
elevation (at sag curve). Ensure adequate cover, given 10 1/2" pavement section, subgrade CBR
requirement, and apparent —1' distance between top of culvert and road finished grade. Cover
appears inadequate.
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34. Road Al profile: Show double -line culverts as two lines, not one line.
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35. Road Al profile: Label drainage structures.
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36. Show Road A2-Ex. Galaxie Farm Road transition. Provide grading /design that ensure smooth
transition.
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C10
37. Road B1 /Road B2 include sag curves that do not meet Min. K value =15; provide Min. K-value.
Also, ref. VDOT Road Design Manual, Appendix B(1), Table t reference to 2011 AASHTO
Green Book. See also, 2011 AASHTO Green Book, Table 5-3. Albemarle may at times rely on
2001 AASHTO Guidelines for Geometric Design of Very Low Volume Local Roads (ADT<400
ADT), which lists Min. rate of vertical curvature for Crest Vertical Curves (Exhibit 12), and
refences Ch. 5 of Green Book for sag curve Min. rate of vertical curvature. Albemarle requires
Min. K-values of 5 and 15 for crest and sag curves, respectively.
Addressed:
38. C 12: Road D, Revise to provide Min. K-value /sag curve > 15.
Addressed:
39. C13: Road F profile: Label drainage structure dimensions/material type, INV elevation, top of
structure elevation (at sag curve). Ensure adequate cover.
Addressed:
40. C 15: Include VDOT CG-9D, Standard Entrance Gutter —Ref. 2016 VDOT R&B Standards, Rev.
d. 07/15.
Addressed:
41. C18
a. Add SL-1 or 1/2" steel plate labels to MHs, as needed (for example, Str. E7, which requires
both).
Addressed
912 E. High St.. Charlottesville, VA 22902 1434.227.51401 shlmp-engineenrig.rom
b. Profile Al-A2: Provide wingwall design.
Addressed:
c. Ensure proposed culvert INV elevation comports with USACE countersinking requirements.
Addressed.
d. If culvert is a double line (B 1 — B2, for example), label profile for clarity ( dbl. line).
Addressed:
e. Revise profile Fl-F2 caption to read 171-174.
Addressed:
ZMA201800012 Sheet 7-related continents relating to SUB201900198
42. Note B: both 30' Access Easement and ACSA waterline (public utility) easements appear to
extend 5' within lots on west side of Road E, Lots 58-61, while 30' Access Easement intrudes 5'
into Lots 62-65 on east side of Road E. Note: No structures or improvements may occupy 20'
ACSA easement, or 30' Access easement. Please consider possible conflict at time of future
building permit application. Recommend propose no structural improvements within easements
on preliminary or final plat, or Road or WPO plans.
Addressed:
43. Note F: Remove lots from stream buffer. Also, item 18 15, above.
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44. Note G: Also, item 7 10, above. As follow-up: Please ensure Max. wall ht. does not exceed 10'; it
does not, as currently proposed. Please ref. code 18-4.3.3, rev. 7/15/20.
Acknowledged, thanks for the reference to the recently revised code. Ret. wall (and walls in
future designs) shall not exceed 10' height.
45. Note &: Also, acut _�4.u.
Addressed:
46. Also, please consider Albemarle County Engineer's comments on ZMA201800012, 9/23/19,
which appear relevant to preliminary plat, and subsequent plan applications, reprinted as text,
below:
`Waiver Requests:
(1) Double Fronted Lots: No objection.
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(2) Private Streets:
- Road D: The Design Standards Manual requires private streets to meet VDOT minimum
standards, however, the County has allowed by policy the use of ASHTO Geometric Design of
Very Low Local Roads for private streets with an ADT under 400 trips per day. If Block 1 is
modified to serve only multi -family (i.e. a site plan), standards may be reduced further as shown
in the Design Standards Manual.
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- Road E: Must also meet low volume road standards. Identify if any additional waivers are
required.
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(3) Private Street Design Requirements:
- Road D: Street must meet design standards noted above, unless serving multi -family only.
- Road E: Identify the purpose of the "bulb" on this road. Parking must meet County design
requirements. Has VDOT approved spacing requirements for public road intersections?
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(4) Modification of Setbacks: No objection.
The road exhibits show a corner lot in Block 1, a few lots in Block 2, and the sidewalk in Block 2
within the stream buffer. These improvements are not exempt and cannot be located in a stream
912 E. High St.. Charlottesville, VA 22902 1434.227.51401 shlmp-engineenrig.rom
buffer. This comment was previously made during the ZMA review, which did not (does not)
show these impacts.'
Addressed:
47. Calculation packet:
a. Confirm that 10-yr event is design basis of LD-229, p. 13 of packet.
b. If so, please revise design of culverts to ensure pipe capacity> calculated peak discharge
during design event; for example, please examine and revise as needed design of:
i. G2 to Gl 198.08 v. 146.4 (all values, cfs)
ii. F2 to Fl (unless designed as detention pipe) 42.96 v. 34.7
E5 to cn
cn to E3
V. E3 !a Q
vi. B2 to B 1 269.63 v. 18.7
vii. A2 to Al. 140.70 v. 19.0
For pipes A & B, capacities were fisted incorrectly. These have been fixed. For F2-Fl, this
pipe will backfdl from Detention, and has been designed as a detention pipe. Tailwater
effect accounted for in LD-347. Storm F design will still work with future road extension.
G2-GI is now a different pipe system, and has capacity.
New / Rev. 1
48. It appears sidewalk is proposed to cross lots 57 thru 60—unless walks are exclusive to these lots,
or even each lot, this is unconventional. Engineering defers to Planning on what Agreements may
be required to ensure public right to use sidewalks located on privately -owned lots.
This is unconventional but was required by ZMA 2018-12, reference ZMA Sheet C7 page
transcribed on Road Plan Sheet C23.
49. C9: Plan view text is upside down (understand why, to correspond with profile). Recommend
rotate text 180-deg. so more easily readable. Plan view information is important and should be
readable.
Noted, plan view viewport rotated 180' for clarity.
50. Restore N arrow to road plan sheets that depict plan views.
This layer was turned back on and now appears on sheets.
51. C7: Label public drainage casement crossing lots 12, 13, 14 and 39; show and label public
drainage easement between E6Z and E6.
Easements labelled as requested.
52. Provide horizontal curve at transition, Road A2 to Ex. Galaxie Farm Lane, an existing roadway
anticipated to see daily use. Use 25 mph design speed, minimum, when designing horizontal
curve at transition. This is not a request for change to Road A2; rather, grading, CL alignment,
and notes that revise Galaxie Farm Lane may suffice. When approaching A2 from Galaxie Farm
Lane, horizontal /vertical curves must provide safe transition at 25 mph, or higher design speed.
Proposed abrupt transition is depicted below, sheet C5.
Acknowledged, however existing road is not designed to 25 mph design speed, so drivers
must reduce speed (as is natural) at transition to the old road. To ensure safe transition, we
analysed the centerline conditions and found that the design provides a "s" curve with each
radius at 100'. This is appropriate for such a transition (effectively, public street to
driveway). Alignment is intentionally chosen to allow effective street extension in the future,
912 E. High St.. Charlottesville, VA 22902 1434.227.51401 shlmp-engineenrig.rom
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but in the meantime the transition remains safe for the users of unimproved Galaxie Farm
Lane.
53. Provide CG-12 ramps and pedestrian crossing of Road Al at intersection with Road D on west
side of Road D. Ramps and crossing are requisite for safe interconnected pedestrian network,
which includes trails and walks..
Acknowledged, this crossing is provided at the Road B intersection to avoid mid -block
crossings which are not preferred for this location by VDOT.
54. Provide CG-12 ramps and pedestrian crossing of Road A2 at intersection with Road B 1-B2,
either side of intersection. Ref. blue lines, below.
Crossings provided on both sides, this effectively accommodates Road D pedestrian traffic
as well, which is safer to be directed towards an intersection rather than a mid -block
crossing.
55. Recommend CG-12 at primitive trail Road Al intersection. Pedestrian facilities typically may not
intersect public roads without HC-accessible ramps, which, in this instance, appear more
necessary since trail -Al intersection is at radius return at development entrance at Rt. 20, and
drivers may be distracted by braking, accelerating, steering, oncoming traffic, etc., whether
entering or exiting Galaxie Farm.
Acknowledged, we do not deem that this revision would add public benefit, (CG-12 does not
make pedestrians more visible to drivers, nor does it give drivers more warning than the
trail clearing itself) however Engineering's desire to optimize pedestrian safety at this
crossing is met by moving the crossing location away from Route 20. Physically, for drivers
entering, they will have slowed down enough (to achieve the turn through a 25' curb radius)
where they will have adequate distance and sight to avoid collision with pedestrians at the
new crossing location. Additionally, signage is specified on Road A to further notify drivers.
56. Also recommend, if VDOT permits, sign on Rt. 20 (blue circle) depicting graphically pedestrian
with right arrow to indicate pedestrians may be encountered immediately upon entering the
development on Road Al. Engineering believes it is critical to plan for conflicts that multiply at
intersections, with transitional speed limits, with road -trail networks that serve different purposes.
A recreational trail for walking, running, and space where children or pets may become separated
from guardians are proposed within feet of Rt. 20, a high-speed primary route. Quite dissimilar,
trail and Rt. 20 nearly immediately intersect one another.
Noted, as mentioned above crossing location moved for safety. There is now 75' distance
from route 20, so the signs as positioned will be adequate for the vehicles entering at <25
mph into the subdivision. We do not want to put sign on route 20 as that could be
misleading to the southbound drivers which make up the vast majority of users at the
entrance — this is a subdivision driver warning not a route 20 waring, so signage within
Road A seems more appropriate than signage on route 20.
CG-6 wipe down at Rt. 20.
Wipe down now labelled.
56. i'fOvidC wipo dU�11 uLL.,,., unless overlooked.
Detail now added. (Sheet C15)
912 E. High St.. Charlottesville, VA 22902 1434.227.51401 shlmp-engineenrig.rom
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If you have any questions or concerns about these revisions, please feel free to contact me at
keane@skimp-en ing eering corn or by phone at 434-227-5140.
Regards,
Keane Rucker, EIT
Shimp Engineering, P.C.
912 E. High St.. Charlottesville, VA 22902 1434.227.51401 shlmp-engineenrig.rom