HomeMy WebLinkAboutWPO200900030 Review Comments Stormwater Management Plan 2010-02-12Philip Custer
From: Philip Custer
Sent: Friday, February 12, 2010 1:39 PM
To: 'JTAGG2 @aol.com'
Cc: Ana Kilmer; Summer Frederick; John Paul Diez
Subject: Approval of ESC and SWM Plans for Charlottesville First Church of the Nazarene
(W PO- 2009 - 00030)
Good afternoon,
Engineering has completed their review of the latest submittal of the ESC and SWM plans for Charlottesville First Church
of the Nazarene (WPO- 2009 - 00030), submitted 11 February 2010. The plans have met all County minimum standards
and are hereby conditionally approved. Final approval of the plans will be given once the Stormwater Facility
Maintenance Agreement (instruction are found here) has been recorded. Please submit three more copies of the plans
so they can be distributed to the County inspectors. In the plans, please correct the proposed weir length of trap 2 (and
remove the "Weir Length =17ft" note of Trap 1) and clarify the depth of the stone in the Basin Biofilter detail (the note is
illegible because of the pattern). I will make these corrections on the plans currently at the county.
The E &SC bond amount is $51,100. The SWM bond amount is $38,600. The forms and instructions to post the Water
Protection Ordinance Bond can be found on the Community Development Department Web site on
www.albemarle.org. You may contact Ana Kilmer (Albemarle County Department of Community Development) at
(434)296 -5832 ext. 3246 for further information on bonding procedures or Maintenance Agreements.
Once the Stormwater Maintenance Agreement is recorded, Engineering can recommend approval of the site plan to the
Project Planner.
Please contact me if you have any questions.
Thanks,
Phil
(434)296 -5832 x3072
OF AL
O
,. vIRGI1`IZP
COUNTY OF ALBEMARLE
Department of Community Development
401 McIntire Road, Room 227
Charlottesville, Virginia 22902 -4596
Phone (434) 296 -5832 Fax (434) 972 -4126
Project:
C'Ville First Church of the Nazarene [SDP200900050, WP0200900030]
Plan preparer:
Jimmy L. Taggart [JTagg2 @aol.com]
Owner /Applicant:
Albemarle Edgehill FarmLLC
Plan received date:
23 June 2009
Rev 1:
7 October 2009
Rev 2:
11 December 2009
Rev 3:
1 February 2010
Date of comments:
17 July 2009
Rev 1:
22 October 2009
Rev 2:
22 January 2010
Rev 3:
4 February 2010
Reviewer:
John P. Diez — Engineering Technician
Rev 3:
Phil Custer
A. Final Site Plan
2. Please provide a completed copy of the standard stormwater maintenance agreement and fee for
recordation for any stormwater management facilities. [ 17 -304E]
(Rev.]) Comment has not been addressed.
(Rev.2) Comment has not been addressed.
(Rev.3) Comment has not been addressed.
4. VDOT approval must be obtained prior to final site plan approval.
(Rev.]) Comment has been noted.
(Rev. 3) Comment has been addressed.
B. Stormwater Management Plan
23. Please address MS -19 at the proposed outfall of the proposed pond and at the outfall of structure
'IQ"
(Rev.2) Please see the memo accompanying this comment letter.
(Rev.3) Please see the memo accompanying this comment letter.
24. There appears to be no stormwater management facilities to treat the runoff to DA -Q. Please
illustrate how this area will be treated.
(Rev.]) Comment has not been addressed. Stormceptor facilities are awarded up to 20% removal
rate in the Virginia Stormwater Management Handbook (Section 3.15). However, the pollutant
removal rate that must be achieved for this project (based on the County's Simple Method
Spreadsheet) is 83 %.
(Rev.2) A biofilter has been provided in this area. However, please make the following
adjustments to the biofilter draining to Point Q:
-the biofilter is shown in plan view as having a bed area of around 800sf but the
calculations refer to a bed area of 392sf; please clarify; if a bed of 800sf is provided 8
plantings will be needed
Albemarle County Community Development
Engineering Review Comments
Page 2 of 2
-the maximum ponding depth of the biofilter is Ift; please drop the rim elevation of the inlet
by 0.5ft
(Rev.3) Comment has been addressed.
C. Erosion and Sediment Control Plan
31. There seem to be discrepancies between the sediment basin calculations on the plans and the
sediment basin sizing computations.
(RevJ) Comment has not been addressed. The pond bottom elevation of the plan detail does not
match with the engineering calc. packet.
(Rev.2) Comment has not been addressed. Revised calculations for the sediment basin on the
southwest corner of the site have not been submitted.
(Rev.3) Calculations have been provided and are satisfactory.
37. It seems that your layer for limits of disturbance has been turned off. Please revise.
(Rev.3) Comment has been addressed.
CDE4 _fsp,swm,escJPD_Rev4PBC_C'Ville First Church of the Nazarene.doc
*-&A
County of Albemarle
Department of Community Development
Memorandum
To: John Diez, Current Development Engineer
From: Phil Custer, Current Development Engineer
Date: 22 January 2010
Subject: First Church of the Nazarene (WPO- 2009 - 00030)
I have reviewed the project for MS -19 compliance. First of all, due to the reconfiguration of the site
watersheds, it seems that the peak discharge, peak velocity, and total volume of runoff to Point Q are all
reduced. Therefore, an adequate channel analysis for this discharge point is not required.
On the other hand, the portion of the site draining to VDOT Culvert 3 -3 is nearly quadrupled. Because of
this, more scrutiny should be applied to this downstream system. Upon first glance of the VDOT design
drawing and calculations, the pipes downstream appear to be sized adequately for the discharges released
from this site. The applicant compares the results of his 10 -year routing showing a peak release rate of
0.238cfs to the design hydrologic data of the culvert which shows a peak discharge of 9.98cfs. However,
this comparison is misleading because there has been no analysis provided for the post - development
drainage area to this culvert from the Edge Hill Farm property and the routing results from the facility are
incorrect because the critical storm was not considered. In addition, the outlet of the drainage system on
the south side of Route 250 appears to be eroding currently, which is indicative of an inadequate channel,
though no computations have been provided by the applicant in this regard.
Rather than providing more calculations for this project which would prolong the review time, I
recommend that the applicant make the following changes to the plan to satisfy all County requirements:
1. Convert Facility 1 into a biofilter that has a bed area equal to 4% of the impervious area draining
to it. It appears that the bottom bed elevation of 390 will provide a sufficient bed area for the
facility, though this should be demonstrated in a short calculation. The modified simple
spreadsheet which was first provided by the applicant in the 19 June 2009 submittal showed a
required removal rate of 80% and the current proposed SWM facility falls well short of that mark
(extended detention is granted only a 35% removal rate by VSMH). This biofilter facility should
be designed to all requirements outlined in the Design Manual Checklist.
2. Please provide a note on the plan at the outlet of the larger biofilter that a Ift deep non - eroding
channel is to be provided from the basin outlet to VDOT Culvert 3 -3 as determined by the County
Erosion and Sediment Control Inspector. (The condition of this roadside ditch may not be as
originally designed.)
3. To meet detention requirements while considering the critical storm, please provide a 5in. orifice
at the elevation of 391. The top of the riser should also be raised so that it is at an elevation of
393.60. All other facility design dimensions appear to be satisfactory (barrel diameter, basin
geometry, riser diameter, etc.).
4. Please specify a trash rack on the lower orifice that meets the minimum requirements of Chapter
3.02 of the VSMH.
5. Update ESC sediment basin calculations accordingly. Engineering will grant a waiver for having
less than lft of freeboard from the riser top to the emergency spillway.
File: 1- 22- 10_PBC to JPD memo_wpo200900030.doc
OF AL
O
,. vIRGI1`IZP
COUNTY OF ALBEMARLE
Department of Community Development
401 McIntire Road, Room 227
Charlottesville, Virginia 22902 -4596
Phone (434) 296 -5832 Fax (434) 972 -4126
Project:
Plan preparer:
Owner /Applicant:
Plan received date:
Rev 1:
Rev 2:
Date of comments:
Rev 1:
Rev 2:
Reviewer:
A. Final Site Plan
C'Ville First Church of the Nazarene [SDP200900050, WP0200900030]
Jimmy L. Taggart [JTagg2 @ aol.com]
Albemarle Edgehill FarmLLC
23 June 2009
7 October 2009
11 December 2009
17 July 2009
22 October 2009
22 January 2010
John P. Diez — Engineering Technician
1. Please revise the Tax Map and Parcel number on the plans. It appears that our county records show
the work being done in on TMP 79 -8A.
(Rev. 1) Comment has been addressed.
2. Please provide a completed copy of the standard stormwater maintenance agreement and fee for
recordation for any stormwater management facilities. [17 -304E]
(Rev.]) Comment has not been addressed.
(Rev.2) Comment has not been addressed.
3. Please provide date of the topographic information.
(Rev.]) Comment has been addressed.
4. VDOT approval must be obtained prior to final site plan approval.
(Rev.]) Comment has been noted.
5. All entrances must have VDOT designations (PE -1, CG -9a, etc.)
(Rev.]) Comment has been addressed.
6. It appears that the entrance exceeds the 4% grade maximum for the distance of 40' from the
intersected street. Please revise. [18- 4.12.17]
(Rev.]) Comment has been addressed.
7. Please provide an entrance road profile. [18- 4.12.17b]
(Rev.]) Comment has been addressed.
8. Please provide site distance lines at the entrance.
(Rev.]) Comment has been addressed.
9. Some of the texts on the plans are illegible. Please clarify.
(Rev.]) Comment has been addressed.
10. Some parking areas exceed the 5% maximum grade. Please revise. [18- 4.12.15c]
(Rev.]) Comment has not been addressed.
(Rev.2) Comment has been addressed.
11. Sidewalks abutting parking must be 6' wide (exclusive of curb), or bumper blocks are provided.
[ 18- 4.12.16e]
(Rev.]) Comment has been addressed.
Albemarle County Community Development
Engineering Review Comments
Page 2 of 3
12. The dumpster pad specifications must be a minimum 4" stone base and 6" concrete of 3000 psi at
28 days, or stronger, reinforced with a minimum grid of wire reinforcing or #4 bars @ 12" o.c.
(Rev.]) Comment has been addressed.
13. Please provide existing ground, VDOT designations, throat length for each drop inlet, grate type
for each grate inlet, and utility crossings on all drainage profiles.
(Rev.]) Comment has been addressed.
14. Pipe slopes must be 0.5% min. to 16% max.
(Rev.]) Comment has been addressed.
15. All labels on drainage profiles must match with storm inlet summary,
(Rev.]) Comment has been addressed.
16. Please provide end sections (ES -1) or endwalls (EW -1)on all pipe outlets.
(Rev.]) Comment has been addressed.
17. All inlet spreads must be less than 10'.
(Rev.]) Comment has been addressed.
18. Please submit culvert calculations.
(Rev.]) Comment has been addressed.
19. All directions of flow change (or deflection angles) in each drainage structure must be 90 degrees
or greater.
(Rev.]) Comment has not been addressed.
(Rev.2) Comment has been addressed.
20. Please submit inlet drainage area maps with drainage acreage, limits of all areas and sub -areas
draining to proposed structures (and existing structures or channels which will be impacted,
hydrologic coefficients, and time of concentration for each drainage area.
(Rev.]) Comment has been addressed.
21. The current design for the storm sewer requires a critical slopes waiver.
(Rev.2) Design has been changed. Please disregard comment.
B. Stormwater Management Plan
22. Please label pre - development and post - development drainage area maps with acreage, coefficients,
and time of concentration.
(Rev.]) Comment has been addressed.
23. Please address MS -19 at the proposed outfall of the proposed pond and at the outfall of structure
«Q„
(Rev.2) Please see the memo accompanying this comment letter.
24. There appears to be no stormwater management facilities to treat the runoff to DA -Q. Please
illustrate how this area will be treated.
(Rev.]) Comment has not been addressed. Stormceptor facilities are awarded up to 20% removal
rate in the Virginia Stormwater Management Handbook (Section 3.15). However, the pollutant
removal rate that must be achieved for this project (based on the County's Simple Method
Spreadsheet) is 83 %.
(Rev.2) A biofilter has been provided in this area. However, please make the following
adjustments to the biofilter draining to Point Q:
-the biofilter is shown in plan view as having a bed area of around 800sf but the
calculations refer to a bed area of 392sf; please clarify; if a bed of 800sf is provided 8
plantings will be needed
-the maximum ponding depth of the biofilter is Ift; please drop the rim elevation of the inlet
by 0.5ft
Albemarle County Community Development
Engineering Review Comments
Page 3 of 3
25. Please provide Albemarle County general stormwater notes. Please refer to the Design Standards
Manual.
(RevJ) Comment has been addressed.
26. This parcel is not is a development area, but in rural land. Please revise removal rate requirements.
(RevJ) Comment has been addressed.
27. Please provide a vehicle access road to the proposed pond. The access must be graded to 10' width
and less than 20% grade.
(RevJ) Comment has been addressed.
C. Erosion and Sediment Control Plan
28. Please provide a construction sequence.
(RevJ) Comment has been addressed.
29. Prior to the installation of the curb and gutter and inlets, much of the site does not drain to the
proposed sediment basin. It seems that a diversion dike may be necessary at the top of the
proposed lot embankment.
(RevJ) Comment has been addressed.
30. Please provide dust control symbols (DC).
(RevJ) Comment has been addressed.
31. There seem to be discrepancies between the sediment basin calculations on the plans and the
sediment basin sizing computations.
(RevJ) Comment has not been addressed. The pond bottom elevation of the plan detail does not
match with the engineering calc. packet.
(Rev.2) Comment has not been addressed. Revised calculations for the sediment basin on the
southwest corner of the site have not been submitted.
32. The construction entrance must drain to a sediment trap.
(RevJ) Comment has not been addressed. The construction entrance should be moved up the
travelway so that a sediment trap can be installed outside of the VDOT right -of -way.
(Rev.2) Comment has been addressed.
33. Please provide a staging and /or parking area.
(RevJ) Comment has been addressed.
34. Please provide outlet protection to all proposed outlets.
(RevJ) Comment has been addressed.
35. Use storm drain inlet protection (IP) on inlets only.
(RevJ) Comment has been addressed.
36. Use culvert inlet protection (CIP) on culvert inlets only.
(RevJ) Comment has been addressed.
37. It seems that your layer for limits of disturbance has been turned off. Please revise.
C: \pcuster_DOCS\My Reviews \WPO's\ Nazarene \CDE3_fsp,swm,escJPD_C'Ville First Church of the Nazarene.doc
� OF AL
,. vIRGI1`IZP
COUNTY OF ALBEMARLE
Department of Community Development
401 McIntire Road, Room 227
Charlottesville, Virginia 22902 -4596
Phone (434) 296 -5832 Fax (434) 972 -4126
Project: C' Ville First Church of the Nazarene [SDP200900050, WP0200900030]
Plan preparer: Jimmy L. Taggart [JTagg2 @aol.com]
Owner or rep.: Albemarle Edgehill Farm LLC
Plan received date: 23 June 2009
Rev. 1: 7 October 2009
Date of comments: 17 July 2009
Rev. 1: 22 October 2009
Reviewer: John P. Diez — Current Development - Engineering Technician
A. Final site plan (SDP200900050)
1. Please revise the Tax Map and Parcel number on the plans. It appears that our county records show
the work being done is on TMP 79 -8A.
(Rev. 1) Comment has been addressed.
2. Please provide a completed copy of the standards stormwater maintenance agreement and fee for
recordation for any stormwater management facilities [17 -304E]
(Rev. 1) Comment has been noted.
3. Please provide date of the topographic information.
(Rev. 1) Comment has been addressed.
4. VDOT approval must be obtained prior to final site plan approval.
(Rev. 1) Comment has been noted.
5. All entrances must have VDOT designations (PE -1, CG -9a, etc.)
(Rev. 1) Comment has been addressed.
6. It appears that the entrance exceeds the 4% grade minimum for the distance of 40' from the
intersected street. Please revise. [18- 4.12.17]
(Rev. 1) Comment has been addressed.
7. Please provide an entrance road profile. [18- 4.12.17b]
(Rev. 1) Comment has been addressed.
8. Please provide site distance lines at the entrance.
(Rev. 1) Comment has been addressed.
9. Some of the texts on the plans are illegible. Please clarify.
(Rev. 1) Comment has been addressed.
10. Some parking areas exceed the 5% maximum grade. Please revise. [18- 4.12.15c]
(Rev. 1) Comment has not been addressed.
11. Sidewalks abutting parking must be 6' wide (exclusive of curb), or bumper blocks are provided.
[ 18- 4.12.16e]
(Rev. 1) Comment has been addressed.
12. The dumpster pad specifications must be a minimum 4" stone base and 6" concrete of 3000 psi at
28 days, or stronger, reinforced with a minimum grid of wire reinforcing or #4 bars @ 12" on
center.
(Rev. 1) Comment has been addressed.
13. Please provide existing ground, VDOT designations, throat length for each drop inlet, grate type
for each grate inlet, and utility crossings on all drainage profiles.
(Rev. 1) Comment has been addressed.
Engineering Review Comments
Page 2 of 3
14. Pipe slopes must be 0.5% min. to 16% max.
(Rev. 1) Comment has been addressed.
15. All labels on drainage profiles must match with storm inlet summary.
(Rev. 1) Comment has been addressed.
16. Please provide end sections (ES -1) or endwalls (EW -1) on all pipe outlets.
(Rev. 1) Comment has been addressed.
17. All inlet spreads must be less than 10'.
(Rev. 1) Comment has been addressed.
18. Please submit culvert calculations.
(Rev. I) Comment has been addressed.
19. All directions of flow change (or deflection angles) in each drainage structure must be 90 degrees
or greater.
(Rev. 1) Comment has not been addressed. Pipes LED still have an angle of less than 90
degrees.
20. Please submit inlet drainage area maps with drainage acreage, limits of all areas and sub -areas
draining to proposed structures (and existing structures or channels which will be impacted,
hydrologic coefficients, and time of concentration for each drainage area.
(Rev. 1) Comment has been addressed.
21. The current design for the storm sewer system requires a critical slopes waiver.
B. Stormwater Management Plan (WPO200900030)
22. Please label pre - development and post - development drainage area maps with acreage, coefficients,
and time of concentration.
(Rev. 1) Comment has been addressed.
23. Please address MS -19 at the proposed outfall of the proposed pond and at the outfall of structure
'IQ"
(Rev. 1) Comment has not been addressed. Please provide information as to where the water
flows to from point "Q'
24. There appears to be no stormwater management facilities to treat the runoff to DA -Q. Please
illustrate how this area will be treated.
(Rev. 1) Comment has not been addressed. Stormceptor facilities are awarded up to 20%
removal rate in the Virginia Stormwater Management Handbook (Section 3.15). However, the
pollutant removal rate that must be achieved for this project (based on the County's Simple
Method Spreadsheet) is 83%.
25. Please provide Albemarle County general stormwater notes. Please refer to the Design Standards
Manual.
(Rev. 1) Comment has been addressed.
26. This parcel is not in a development area, but in other rural land. Please, revise removal rate
requirements.
(Rev. 1) Comment has been addressed.
27. Please provide a vehicle access road to the proposed pond. The access must be graded to 10' width
and less than 20% grade.
'Rev. 1) Comment has been addressed.
C. Erosion Control Plan (WPO200900030)
28. Please provide a construction sequence.
(Rev. 1) Comment has been addressed.
Engineering Review Comments
Page 3 of 3
29. Prior to the installation of the curb and gutter and inlets, much of the site does not drain to the
proposed sediment basin. It seems that a diversion dike may be necessary at the top of the
proposed lot embankment.
(Rev. 1) Comment has been addressed.
30. Please provide dust control symbols (DC).
(Rev. 1) Comment has been addressed.
31. There seem to be discrepancies between the sediment basin calculations on the plans and the
sediment basin sizing computations.
(Rev. 1) Comment has not been addressed. The pond bottom elevation of the plan detail does
not match with the engineering calc. packet.
32. The construction entrance must drain to a sediment trap.
(Rev. 1) Comment has not been addressed. The construction entrance should be moved up the
travelway so that a sediment trap can be installed outside of the VDOT right -of -way.
33. Please provide a staging and /or parking area.
(Rev. 1) Comment has been addressed.
34. Please provide outlet protection to all proposed outlets.
(Rev. 1) Comment has been addressed.
35. Use storm drain inlet protection (OP) on inlets only.
(Rev. 1) Comment has been addressed.
36. Use culvert inlet protection (CIP) on culvert inlets only.
(Rev. 1) Comment has been addressed.
Once these comments have been addressed, please submit two (2) copies of the revised plans, calculations,
and narratives to Current Development Engineering.
Current Development Engineering is available from 2:30pm — 4:00pm on Thursdays to discuss these
review comments. Please contact Amy Pflaum at 434 - 296 -5832 or apflaum @albemarle.org to schedule an
appointment.
If you have any questions, you can reach me, John Diez, at (434) 296 -5832 ext. 3025, or my email:
jdiez@albemarle.org.
\\ Cob- dts01 \cityviewlnk\Docs \2009 \SDP \SDP200900050 C'Ville First Church of the Nazarene \CDE2- fsp,swm,esc_JPD_C'Ville
First Church of the Nazarene.doc
� OF AL
,. vIRGI1`IZP
COUNTY OF ALBEMARLE
Department of Community Development
401 McIntire Road, Room 227
Charlottesville, Virginia 22902 -4596
Phone (434) 296 -5832 Fax (434) 972 -4126
Project: C' Ville First Church of the Nazarene [SDP200900050, WP0200900030]
Plan preparer: Jimmy L. Taggart [JTagg2 @aol.com]
Owner or rep.: Albemarle Edgehill Farm LLC
Plan received date: 23 June 2009
Date of comments: 17 July 2009
Reviewer: John P. Diez — Current Development - Engineering Technician
A. Final site plan (SDP200900050)
1. Please revise the Tax Map and Parcel number on the plans. It appears that our county records show
the work being done is on TMP 79 -8A.
2. Please provide a completed copy of the standards stormwater maintenance agreement and fee for
recordation for any stormwater management facilities [17 -304E]
3. Please provide date of the topographic information.
4. VDOT approval must be obtained prior to final site plan approval.
5. All entrances must have VDOT designations (PE -1, CG -9a, etc.)
6. It appears that the entrance exceeds the 4% grade minimum for the distance of 40' from the
intersected street. Please revise. [18- 4.12.17]
7. Please provide an entrance road profile. [18- 4.12.17b]
8. Please provide site distance lines at the entrance.
9. Some of the texts on the plans are illegible. Please clarify.
10. Some parking areas exceed the 5% maximum grade. Please revise. [18- 4.12.15c]
11. Sidewalks abutting parking must be 6' wide (exclusive of curb), or bumper blocks are provided.
[ 18- 4.12.16e]
12. The dumpster pad specifications must be a minimum 4" stone base and 6" concrete of 3000 psi at
28 days, or stronger, reinforced with a minimum grid of wire reinforcing or #4 bars @ 12" on
center.
13. Please provide existing ground, VDOT designations, throat length for each drop inlet, grate type
for each grate inlet, and utility crossings on all drainage profiles.
14. Pipe slopes must be 0.5% min. to 16% max.
15. All labels on drainage profiles must match with storm inlet summary.
16. Please provide end sections (ES -1) or endwalls (EW -1) on all pipe outlets.
17. All inlet spreads must be less than 10'
18. Please submit culvert calculations.
19. All directions of flow change (or deflection angles) in each drainage structure must be 90 degrees
or greater.
20. Please submit inlet drainage area maps with drainage acreage, limits of all areas and sub -areas
draining to proposed structures (and existing structures or channels which will be impacted,
hydrologic coefficients, and time of concentration for each drainage area.
Engineering Review Comments
Page 2 of 2
B. Stormwater Management Plan (WPO200900030)
21. Please label pre - development and post - development drainage area maps with acreage, coefficients,
and time of concentration.
22. Please address MS -19 at the proposed outfall of the proposed pond and at the outfall of structure
41T
23. There appears to be no stormwater management facilities to treat the runoff to DA -Q. Please
illustrate how this area will be treated.
24. Please provide Albemarle County general stormwater notes. Please refer to the Design Standards
Manual.
25. This parcel is not in a development area, but in other rural land. Please, revise removal rate
requirements.
26. Please provide a vehicle access road to the proposed pond. The access must be graded to 10' width
and less than 20% grade.
C. Erosion Control Plan (WPO200900030)
27. Please provide a construction sequence.
28. Prior to the installation of the curb and gutter and inlets, much of the site does not drain to the
proposed sediment basin. It seems that a diversion dike may be necessary at the top of the
proposed lot embankment.
29. Please provide dust control symbols (DC).
30. There seem to be discrepancies between the sediment basin calculations on the plans and the
sediment basin sizing computations.
31. The construction entrance must drain to a sediment trap.
32. Please provide a staging and/or parking area.
33. Please provide outlet protection to all proposed outlets.
34. Use storm drain inlet protection (OP) on inlets only.
35. Use culvert inlet protection (CIP) on culvert inlets only.
Once these comments have been addressed, please submit two (2) copies of the revised plans, calculations,
and narratives to Current Development Engineering.
Current Development Engineering is available from 2:30pm — 4:00pm on Thursdays to discuss these
review comments. Please contact Amy Pflaum at 434 - 296 -5832 or apflaum @albemarle.org to schedule an
appointment.
If you have any questions, you can reach me, John Diez, at (434) 296 -5832 ext. 3025, or my email:
jdiez@albemarle.org.
\\ Cob- dts01 \cityviewlnk\Docs \2009 \SDP \SDP200900050 C'Ville First Church of the Nazarene \CDE1- fsp,swm,esc_JPD_C'Ville
First Church of the Nazarene.doc
PROJECT NAME:
Charlottesville First Church of the Nazarene
FILE #:
WPO- 2009 -00030
DATE APPROVED:
12 February 2010 (Plans signed 11 February 2010)
Item
Unit
Amount
Unit Cost
Subtotal
Basin Biofilter
trees & shrubs ball /burlap
planted
38
$100.00
$3,800
underdrain stone
cubic yard
215
$17.00
$3,655
biofilter surface
area/
27* 1' dept
stone delivery
load
22
$45.00
$990
underdrain pipe, 6" PVC
linear foot
220
$1.35
$297
filter fabric
square yard
115
$10.00
$1,150
biofilter surface
area/
27* 1' dept
sand /soil mixture
cubic yard
359
$20.00
$7,180
biofilter surface
area/
27* 2' dept
EC -1 outlet protection
each
2
$200.00
$400
class 1 rip -rap
square yard
18
$55.00
$990
Riser structure
each
1
$1,000.00
$1,000
EC -2 EC -3 ditch stabilization
linear foot
120.00
$10.00
$1,200
maintenance road
linear foot
200.00
$8.00
$1,600
Concrete pipe
linear foot
60.00
$25.00
$1,500
subtotal
$23,762
Trap Biofilter
trees & shrubs ball/burlap
planted
4
$100.00
$400
underdrain stone
cubic yard
21
$17.00
$357
biofilter surface
area/
27* 1' dept
stone delivery
load
3
$45.00
$135
underdrain pipe, 6" PVC
linear foot
42
$1.35
$57
filter fabric
square yard
42
$10.00
$420
biofilter surface
area/
27* 1' dept
sand /soil mixture
cubic yard
35
$20.00
$700
biofilter surface
area/
27* 2' dept
EC -1 outlet protection
each
1
$200.00
$200
class 1 rip -rap
square yard
17
$55.00
$935
48" concrete riser structure
each
1
$1,000.00
$1,000
EC -2 EC -3 ditch stabilization
linear foot
30.00
$10.00
$300
maintenance road
linear foot
31.00
$8.00
$248
Concrete pipe
linear foot
80.00
$25.00
$2,000
subtotal
$6,752
subtotal
$30,514
project management
$4,5 77
subtotal
$35,091
10% Contingency
$3,509
TOTAL
$38,600
ROUNDED TOTAL
$38,600
min total after reduction
$7,720