HomeMy WebLinkAboutSUB202100179 Review Comments Road Plan and Comps. 2022-01-12�q off pig 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: Galaxie Farm Subdivision Road and Utility Plan
Project file number: SUB2021-00179
Plan preparer: Scott Collins, PE, Collins Engineering
200 Garrett Street, Suite K, Charlottesville, VA 22902
scott(&,,collins-engineering. com
Owner or rep.: Galaxie Farm Investments, LLC
600 East Water Street, Suite H
P.O. Box 5386, Charlottesville, VA 22902
alan(cr,,riverbenddev. com
Plan received date: 25 Oct 2021
(Rev. 1) 4 Jan 2022
Date of comments: 14 Dec 2021
(Rev. 1) 12 Jan 2022
Reviewer: John Anderson, PE
SUB201-00179; Engineering review comments:
1. Sheet 21, 22
a. Recommend storm culvert profile compaction label/s for pipes or structures mostly or entirely in
fill section. (Rev. 1) Addressed. Applicant response (letter d. 12/2121): `Compaction notes have
been added to all drainage and utility profile sheets.'
b. (Sheet 21) Recommend increase slope slightly, between Str. 42B and 38, which appears possible if
INV OUT, Str. 42B, is slightly shallower depth. Reasoning is that HDPE is somewhat flexible,
and any error during construction (flatter As -built condition) may require additional hydraulic
modeling, or constructive change which may affect or delay bond reduction, or increase project
expense. 0.50% is minimum pipe slope, per Drainage Plan review checklist for plan reviewers.
(Rev. 1) Addressed.
2. Sheet 19: Engineering defers to VDOT review of (primary entrance) Galaxie Farm Lane culvert headwall
/endwall. (Rev. 1) Applicant: `Comment acknowledged.'
3. Sheet 16: Increase diameter (or increase slope), pipe 36 — 34, since total flow is 99% of full flow capacity
of pipe. (Rev. 1) Addressed.
4. Sheet 14
a. t, Str. 32 appears high. Please check and revise, as needc, (Rev. 1) Addressed.
b. L Str. 12 and 14 would appear to be similar but are not. Please check 4 for these structures and
revise as needed. (Rev. 1) Addressed.
5. Sheet 10
a. Pavement design: a =1.67, unless h + b > 4.5 inches, ref. p. 34, .PDF document at:
htti)s://www.virginiadot.orgibusiness/resources/Materials/Pavement Design Guide for Subdivisi
on and Secondary Roads.pdf [ 2018 VDOT Pavement Design Guide for Subdivision and
Secondary Roads in VA ] Please revise table, with a =1.67 for Marie Currie Court, and Rubin
Vera Place. (Rev. 1) Addressed.
b. Provide section, Galaxie Farm Lane, Sta. 16+82 to end project, Galaxie Farm Lane, Sta. 23+25f.
See profile, sheet 18. (Rev. 1) Addressed. Applicant: `Additional cross sections have been shown
between Sta. 16+96 to the end of the proposed roadway improvements (St& 19+04). The sections
Engineering Review Comments
Page 2 of 2
in this area are not uniform in widths due to the transition from the proposed roadway to the
existing road, but generalized sections have been shown to aid in the construction of the roadway.'
6. Sheet 9
a. Acquire off -site grading easement to construct proposed improvements (including grading) to
Galaxie Farm Lane. Neither sheet 5 or 9 clarify how (or ensure that) proposed grading or
improvement to off -site portion of Galaxie Farm Lane (located on School Board property) is
possible, absent easement. Discussion may help. Please feel free to call (434.296-5832-0069).
(Rev. 1) Applicant: `A letter from the School Board will be acquired and provided to Albemarle
County granting temporary construction access for the improvements to Galaxie Farm Lane.'
b. Submit sealed geotechnical retaining wall design at earliest convenience. Appreciate preliminary
retaining wall design data provided with this sheet. (Rev. 1) Applicant: `Comment acknowledged.
Sealed geotechnical retaining wall design will be provided to Albemarle County for review and
approval.'
c. Provide copy of recorded retaining wall maintenance agreement for walls crossing one or more lot
lines. (Rev. 1) Applicant: `A copy of the recorded retaining wall maintenance agreement for walls
crossing one or more lot lines will be provided to Albemarle County.'
d. Please provide retaining wall handrail labels, either with Grading and Drainage plan sheets (8 and
9), or with Site Plan sheets (4 and 5). (Rev. 1) Addressed.
7. Sheet 5
a. Provide street name sign for Vera Rubin Place. (Rev. 1) Addressed.
b. Provide and label speed limit sign/s. (Rev. 1) Addressed.
8. Sheet 4
a. Provide and label speed limit sign/s. (Rev. 1) Addressed.
b. Label Marie Curie Court street name sign. (Rev. 1) Addressed.
c. Label Mary Jackson Court street name sign at SW corner of intersection with Galaxie Farm Lane.
(Rev. 1) Addressed.
d. Coordinate MOT plan with VDOT for work within public right-of-way, state route 20. (Rev. 1)
Applicant: `Comment acknowledged.'
e. Recommend CG-2 (or CG-6) at north end of Mary Jackson Court, to prevent asphalt pavement
degradation. (Rev. 1) Addressed.
f. Label Cow Branch, across plan sheets. (Rev. 1) Addressed.
9. Sheet 3
a. Please confirm that Lot 6 buildable area listed in table excludes preserved slopes (see 18-4.2. La.),
if not, please revise buildable area listed, and ensure area meets requirements for proposed
subdivision. (Rev. 1) Addressed.
b. Please delineate buildable area, Lot 6 (provide linework), and label buildable area (Rev. 1)
Addressed.
10. Sheet 1: Please revise SUB202000098 to SUB202100179, since ROAD Plan is assigned this file #. (Rev.
1) Addressed.
11. New: Please check Mary Jackson Court — Mae Jemison Lane street names (used for the same street).
Thank you.
Please call if any questions — tel. 434.296-5832-x3069, or email 4anderson2&albemarle.org.
SUB202100179 Galaxie Farm RP 011222revl.docx