HomeMy WebLinkAboutSDP201100038 Correspondence 2011-06-10P RA Patton Harris Rust & Associates
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July 6, 2011
PHRA1593610
Ms. Ellie Ray, CLA, Senior Planner
County of Albemarle
Department of Community Development
401 McIntire Road, Room 227
Charlottesville, Virginia 22902 -4596
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RE: LIBRARY AVENUE PARKING LOT (CROZET)
(FORMERLY TITLED CROZET LIBRARYPIIASE 1 PARKING LOT)
SDP 2011 -00038
Dear Ms. Ray:
This letter is in response to the Site Review Committee's comments regarding the above project.
Our response to each comment can be found in bold following the comment.
Comment Responses
Review Agency: County of Albemarle- Department of Community Development- Division:
Engineering
Reviewer: John Diez
Date of Comments: June 10, 2011
A. Final Site Plan (SDP201100038)
Please update the existing contours on Main Street on the existing conditions sheet.
Please revise all necessary sheets to show the new existing contours. Per your e-mail
instruction dated June 15, 2011 PHR +A has used the design plan contours for the
Library Avenue project (prepared by KHA) to represent the existing condition
contours on the site. These contours appear light and dashed as typical for existing.
New contours appear solid and dark.
2. Please provide date and source of the topographic information. All topography should be
at least visually field verified by the designer within the last year.
Dates and sources provided in note on Sheet C -1.2
3. A Letter of Intent is needed from the owner of TMP:56A2- 01 -15, TMP:56A2- 01 -14, and
TMP:56A2- 01 -12. Grading easements must be recorded prior to final site plan approval.
The Grading easements have been provided to Community Development and a copy
of these easements is attached to this letter.
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PHRA1593610 July 6, 2011 Page 2
County of Albemarle Library Avenue Parking Lot (Crozet)
4. VDOT approval must be obtained for any plan affecting public right -of -way.
Acknowledged. VDOT has reviewed this plan and their comments are below.
5. Please show the existing contour lines of Main Street as dashed lines throughout the set
of plans. Per your e-mail instruction dated June 15, 2011 PHR +A has used the
design plan contours for the Library Avenue project (prepared by KHA) to
represent the existing condition contours on the site. These contours appear light
and dashed as typical for existing. New contours appear solid and dark.
6. Please provide Albemarle County General Construction Notes. Please refer to the Design
Standards Manual. General Construction notes added Sheet C -1.1
7. Please provide islands at each end of the center area of the parking lot. The island may
consist of grass, wood blocks, or a concrete curb. Grass islands have been added to the
plans. See Sheet C -4.0 for dimension and location.
8. It appears that some of the runoff from the south side of the parking lot will not be
captured by the biofilter. Please provide either curb or a small ditch /swale to help capture
and direct the runoff to the facility. As discussed with John Diez on June 14, 2011, the
grades in this area do slope to direct water to the bioretention filter.
B. Erosion and Sediment Control (WP0201100032)
1. Please provide County Erosion and Sediment Control Notes. Please refer to the Design
Standards Manual. County Erosion and Sediment Control notes have been added to
Sheet C -2.3
2. Please update the project description and existing site conditions on the E &S narrative.
Please remove anything relating to the construction of a building or library. The
narrative has been updated on Sheet C -2.3
3. Please update the construction sequence and include the demolition. Sequence Revised
Sheet C -2.3
4a. Engineering recommends: In the initial phase, remove the silt fence on the north and
south side of the site and replace them with diversion dikes directing the runoff to a
sediment trap at the lowest point of the site on the west side of the property. This will
allow the entire site's runoff, including the construction entrance, to be captured by the
sediment trap. The silt fence on the west side of the property can remain. Silt fence
placed as directed and a temporary sediment trap is now located in the southwest
corner of site.
PHRA1593610 July 6, 2011 Page 3
County of Albemarle Library Avenue Parking Lot (Crozet)
4b. In phase 1, move the sediment trap to the area of the proposed Bio- retention pond.
Reshape the sediment trap so it can be converted to the bio- retention pond once the site
has been stabilized. (Engineering allows over sizing the sediment trap with a weir to
allow runoff to sheet flow from the sediment trap down to the west.) Sediment trap for
the second phase of construction placed as directed.
Please include all proposed grading within the limits of disturbance for all phases. All
proposed grading are shown within the limits of disturbance.
6. Please provide dust control (DC) in all E &S phases.
Dust control added to erosion and sediment control plans.
7. Tree protection must be provided to all trees that are being saved.
Limits of tree protection fencing shown on all plan sheets.
8. Please show the proposed contours for the sediment trap.
Contours added to plan.
9. A completed copy of the standard stormwater maintenance agreement and fee for
recordation for any stormwater management facility must be submitted prior to plan
approval. Ron Lilley, the Project Manager, will coordinate this item with
Community Development.
10. Please provide Albemarle County General Stormwater Management Notes. Please refer
to the Design Standards Manual. General Stormwater Management Notes added
Sheet C -2.2
Review Agency: Virginia Department of Transportation
Reviewer: Joel DeNunzio
Review Date: June 27, 2011
Comments: Crozet Library Phase I Final
The entrance was built to a CG -9A standard during the Main Street construction although
the CG -11 is the standard for commercial entrances. The profile needs to be in
accordance with the detail shown in the CG -9A standard with the traversable 4 foot
minimum space not to exceed 2% and likely will be longer based on the Main Street plan.
After the sidewalk, the first profile break needs to be a maximum 3% algebraic
difference, -1 %, for a minimum 10 feet and needs to include a parabolic curve. The
maximum break at that point can be up to 8% but the grade should not exceed a total of
8% because it's a commercial entrance. We understand the CG -9A entrance and
sidewalk was installed per the KRA plans. The entrance to the parking lot has been
graded to provide a 4% slope for 40 -feet with a maximum cross slope of 2% per
direction from Community Development comments dated June 22, 2011.
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PHRA1593610 July 6, 2011 Page 4
County of Albemarle Library Avenue Parking Lot (Crozet)
2. Show the trip generation for the library on the plan. Based on the February 5, 2009
"Transportation Planning Analysis for the Downtown Crozet Avenue Streetscape
Project, Phase 2" by Kimley -Horn & Associates, the library was expected to
generate the following trips (assuming 20,000sf).
5.2 Proposed Downtown Crozet Library Trip Generation
Table I provides a summary of the estimated traffic generation potential for the
proposed 20,000 SF Downtown Crozet Library site. The information in Table I was
derived from the Institute of Transportation Engineers (ITE) Trip Generation (7th
Edition).
Table 1-Proposed Downtown Crozet Library Trin Generation
ITE
Code
Description
Size
Unit
Daily
Trips
AM Peak Hour
PM Peak Hour
In
Out
Total
In
Out
Total
Future Downtown
590
20,000
SF
1,080
15
6
21
68
74
142
Library
3. Show the horizontal sight line triangles. The horizontal sight line triangles are shown
on Sheet C4.0.
4. The minimum width of a commercial entrance is 30 feet in accordance with the VDOT
Road Design Manual Appendix F -85. The Main Street plan, which was approved by
VDOT, provided a 24' wide entrance for the future library project.
Review Agency: County of Albemarle- Department of Community Development- Zoning
and Current Development
Reviewer: Ellie Ray, CLA, Senior Planner
Review Date: June 16, 2011
Comments: Final Site Plan
D[General Comment] There seems to be some discrepancy between County records and
the plan in terms of the acreage of each parcel. Please verify and clearly present each
parcel and its acreage. Area information updated on Sheet C -1.1
[32.5.6(a)] Please add the fol
classification;
"Entrance Corridor Overlav" d
[32.5.6(e) and 32.7.9.4 (b)] The landscape plan should also indicate the trees to be saved,
limits of clearing, and location and type of protective fencing. Limits of clearing and
tree protection added to plan Sheet C -4.0 Type of tree protection fencing included
on detail Sheet C -2.3
PHRA1593610 July 6, 2011 Page 5
County of Albemarle Library Avenue Parking Lot (Crozet)
[32.5.60) and 32.5.6(1)] In an effort to ensure that there are no oversights in the meshing
together of the existing conditions survey, Main Street Road Plans and this proposed
plan, please verify the location and size of all existing and proposed water, sewer, storm
sewer, drainage and any other utility facilities and /or easements. Library Avenue
utilities, as provided by Kimley Horn, are shown on plans.
[32.6.6(b)] It appears that some of the grading on the southern part of the property
QJ 4j' extends beyond the property boundary and the `Project Boundary'. It also isn't included
Or in the area marked `5715 SF Off Site Grading Easement'. Make sure that all off -site
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grading is included within an easement for recordation. All off -site grading is within
the acquired easement. The grading easement has been provided under separate
cover.
6. [32.6.6(f)] Please include a signature panel for the Department of Community
FF-- --" Development on the Cover Sheet. ,Signature panel added to Sheet C -1.1
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�[32.6.6(g)] For all parking areas, indicate: the size, angle of stalls, and width of aisles and
travelways. Dimensions added to plan Sheet C -4.0
t#**" [Comment] Although there are technically no parking spaces required on this plan,
please consider adding bicycle parking spaces in conformance with section 2013.4.13.3 at
a rate of 1 bike space per 10 parking spaces. Pre - fabricated bike rack added to plan
Sheet C -4.0
9. [32.7.9.4(a)] Please add notes to the landscape plan indicating which sections of code you
are addressing and verification that the landscape requirements have been satisfied. Note
added to plan Sheet C -4.0
=[32.7.9.4(b)] We will not require interior parking lot landscaping for this Phase I
temporary parking lot. However, for future reference, this requirement will need to be
met when the final plans for the library building are submitted. Acknowledged.
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11. [20B.4(D)] It appears that the screening provided between the parking lot and the new
main street is partially deciduous and is spaced approximately 10 feet on- center. Please
revise the landscape plan to meet this section by either making both species evergreen or
re- spacing the Ilex crenata to 5 feet on- center. Screening also needs to be added in the
northeastern portion of the parcel between the parking lot and the public road (on the
eastern side of the entrance). Ilex crenata placed 5' on center, ilex crenata and Ilex
verticillata added along the east side of entrance.
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PHRA1593610 July 6, 2011 Page 6
County of Albemarle Library Avenue Parking Lot (Crozet)
Review Agency: County of Albemarle- Inspections
Reviewer:
Jay Schlothauer
Submission Date:
May 8, 2011
Plan Dated:
May 8, 2011
Review Date:
June 10, 2011
Comments:
Final Site Plan
Based on the total number of parking spaces, three of them must be barrier -free. Of these
three spaces, one of them must also be van - accessible.
Three barrier -free, including one van - accessible, spaces have been provided.
PHR +A is pleased to submit the above comment response for your use. Please feel free to
contact us at (540) 434 -0202 if you have any questions or comments.
Sincerely,
PATTON HARRIS RUST & ASSOCIATES
A Pennoni Company
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J(hJ7. Reno, P.E.
Director of Civil Engineering
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