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Subdivision Review Comments
All Subdivision Review Comments for Case # 16CP0060




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CASE NO: 16CP0060 STATUS: PENDING APPROVAL
PROJECT NAME: WYNWOOD AT FOXCREEK - LAST INTERNET UPDATE: 11/21/17
SUBMITTAL TYPE: CONSTRUCTION PLAN
DEPARTMENT...REV..ROUTED..RESPONSE..STATUS....DATE...RVW..PHONE
ENVIR.ENGR.-: 03 06/07/17 06/28/17 COMPLETE 10/02/17 MCJ 751-2335
FIRE DEPT.--: 03 06/07/17 06/28/17 ******** 06/29/16 JKL 748-1489
PLANNING----: 03 06/07/17 06/28/17 ******** 03/22/16 GWK 706-7691
TRANSPORT.--: 03 06/07/17 06/28/17 COMPLETE 10/18/17 SES 751-4912
UTIL.PLAN.--: 03 06/07/17 06/28/17 ******** 08/22/16 TVM 751-4435
UTILITIES---: 03 06/07/17 06/28/17 AMENDED* 09/27/17 WBP 751-4336
UTIL.R.O.W.-: 03 06/07/17 06/28/17 ******** ********
VDOT--------: 03 06/07/17 06/28/17 ******** ********
REVIEW DEPARTMENT: UTILITIES DEPARTMENT
REVIEWER/PHONE # : W.B. PAYNE III/748-4336
NAME OF PLAN : WYNWOOD AT FOXCREEK SECTION 16
ADDRESS : 6400 WOOLRIDGE ROAD
SUBMISSION DATE : 2/05/16
PLAN DATED : 2/03/16
REVIEW DATE : 3/17/16
SITE PLAN NO. : 16CP0060
COMMENTS : 1ST REVIEW-NOT APPROVED
TABLE REVIEW :
PLAT PROCESS :
1. ADD THE UTILITIES PROJECT NUMBER DESIGNATED FOR THIS
PROJECT (16-0030) TO THE COVER SHEET AND ALL UTILITIES
SHEETS AT A MINIMUM.
2. ADD THE FOLLOWING UTILITIES CONTACT INFORMATION TO THE
PLAN: W.B. PAYNE III, PRINCIPAL ENGINEER, 804-751-4336,
PAYNEW@CHESTERFIELD.GOV
3. ADD A MISS UTILITY NOTE OR REFERENCE TO THE COVER
SHEET AND ALL UTILITY PLAN SHEETS AT A MINIMUM.
4. LABEL THE SIZE AND TYPE OF MATERIAL FOR THE EXISTING
SEWER LINES. BE ADVISED THAT ALL WATER AND SEWER AS-BUILT
INFORMATION MAY BE OBTAINED FROM THE UTILITIES DEPARTMENT
BY EMAILING SWAVAILABILITY@CHESTERFIELD.GOV OR BY VISITING
THE DEPARTMENT OF UTILITIES BUILDING AT 9840 GOVERNMENT
CENTER PARKWAY.
5. PROVIDE NAMES AND R/W WIDTHS FOR ALL STREETS.
6. ADD A NOTE INDICATING ALL DI PIPE IS TO BE CLASS 52.
7. CHESTERFIELD UTILITIES RECOMMENDS THE CONTRACTOR
INSTALL STEEL ENCASEMENT PIPE IN 10' INCREMENTS. FOR
EXAMPLE, THE PROPOSED 57 LF LENGTH OF CASING PIPE COULD BE
SHOWN AS 60 LF FOR EASE OF CONSTRUCTION.
8. ADD THE REQUIRED CASING PIPE THICKNESS (T = 0.375") TO
THE DESCRIPTION OF EACH BORE ON BOTH PLAN AND PROFILE.
ADDITIONALLY, SHOW THE LIMITS OF THE BORE AND RECEIVING
PITS FOR EACH BORE LOCATION. WILL TEMPORARY CONSTRUCTION
EASEMENT BE NECESSARY AROUND THE BORE PITS?
9. REFERENCE DETAIL CAS-2, NOT CAS-4 ON SHEETS C3.0,
C3.2, AND C4.5. IT IS NOTED THE CAS-2 DETAIL IS CORRECTLY
SHOWN ON SHEET C6.2.
THE COVER SHEET LISTS 46 TOTAL WATER AND SEWER SERVICE
CONNECTIONS ARE PROPOSED FOR THIS PLAN. PER SHEET C3.0,
THE FOLLOWING LOTS ARE NOTED: 1,2,3-19, AND 33 (20
CONNECTIONS). PER SHEET C3.1, THE FOLLOWING LOTS ARE
NOTED: 20-32 AND 34-45 (25 CONNECTIONS), THE TOTAL OF
WHICH TALLIES TO 45 WATER AND SEWER CONNECTIONS. LOTS 46-
55 APPEAR TO HAVE EXISTING CONNECTIONS. PLEASE CHECK THE
NUMBER OF NEW CONNECTIONS PROPOSED WITH THIS PLAN AND
REVISE THE QUANTITIES AS NECESSARY.
11. ADD A NOTE TO THE PLAN STATING THAT ALL EXISTING
FACILITIES (SUCH AS VALVE BOXES, ARV'S, MH F&C'S, ETC.)
MUST BE ADJUSTED TO FINAL GRADE AFTER CONSTRUCTION IS
COMPLETED.
12. ADD A NOTE STATING THAT ALL SALVAGEABLE UTILITY ITEMS
ARE TO BE RETURNED TO THE CHESTERFIELD COUNTY DEPARTMENT
OF UTILITIES AS DETERMINED BY THE CONSTRUCTION INSPECTOR.
13. IT IS NOTED ON THE LANDSCAPE PLAN (SHEET L1.0) THAT
MANY PROPOSED RED MAPLE AND WILLOW OAK TREE ARE PLANTED
ADJACENT TO WM'S, WATER SERVICE LINES, AND SEWER LATERALS
AND IN SOME CASES LOCATED DIRECTLY ON TOP OF THEM.
UTILITIES TYPICALLY REQUIRES A MINIMUM 10' HORIZONTAL
SEPARATION BETWEEN TREES AND UTILITIES TO PRECLUDE FUTURE
MAINTENANCE CONCERNS. LIKEWISE, TREES OR PERMANENT
STRUCTURES MAY NOT BE LOCATED WITHIN UTILITY EASEMENTS.
14. PLEASE BE ADVISED THAT IF SIDEWALKS ARE DESIGNED TO BE
LOCATED WITHIN THE RIGHT-OF-WAY, THE ENDS OF SEWER
LATERALS MUST BE LOCATED THREE (3) FEET BEHIND THE HOUSE
SIDE OF THE SIDEWALK OR TO THE RIGHT-OF-WAY LINE,
WHICHEVER IS GREATER. IT IS NOTED THAT THE SEWER LATERALS
ARE SHOWN ENDING OUTSIDE THE RIGHT-OF-WAY ON PRIVATE
PROPERTY; THEREFORE PLEASE REVISE THE LAYOUT TO SHOW THE
SEWER LATERALS ENDING IN THE CORRECT LOCATIONS. ALL WM
LOCATIONS APPEAR TO BE SHOWN CORRECTLY.
15. MODIFY THE TYPICAL (TYP) SHOWN FOR WM'S/SERVICES AND
FOR THE SEWER LATERALS TO DENOTE THE ANTICIPATED SIZES
(3/4" WM, 3/4" CORPORATION STOPS AND SERVICE LINES, AND 6"
LATERALS). ADDITIONALLY, INCLUDE THE TYPE OF MATERIALS
(COPPER, PVC, ETC.).
16. RE: SHEET C3.0, THE WATERLINE TEE LOCATED NEAR LOT 2
AND GOSSAMER DRIVE IS SHOWN AS "FULLY VALVED" HOWEVER THE
DESCRIPTION INDICATES ONLY ONE 12" GV AND ONE 8" GV ARE TO
BE INSTALLED. THE EASTERNMOST 12" GV MAY BE REMOVED FROM
THE PLAN; PLEASE REVISE.
17. REVISE THE NOTE ON SHEET C3.0 ADVISING THE CONTRACTOR
TO "REMOVE PLUG AND CONNECT " BY ADDING THAT THE
CONTRACTOR IS TO REMOVE THE EXISTING 2" FLUSHING HYDRANT
AND RETURN TO THE CHESTERFIELD COUNTY DEPARTMENT OF
UTILITIES AS DETERMINED BY THE CONSTRUCTION INSPECTOR (SEE
COMMENT #12). THIS SAME COMMENT APPLIES AND SHOULD BE
ADDED TO ANY PROPOSED WATERLINE CONNECTION POINT WHERE AN
EXISTING 2" FLUSHING HYDRANT WILL BE REMOVED AS PART OF
THE CONSTRUCTION.
18. FOR THE 12" WATERLINE ON GOSSAMER DRIVE AT THE CUL-DE-
SAC, REMOVE THE PROPOSED 2" FLUSHING HYDRANT AND INSTALL
A 4" BO; REVISING THE PLAN AND PROFILE ACCORDINGLY. IF
THIS 12" WATERLINE IS TO BE EXTENDED IN THE FUTURE, AN
ADDITIONAL 12" GV AND ONE "STICK" OF 12" PIPE PAST THE GV
MUST BE ADDED WITH THE 4" BO LOCATED AT/NEAR THE END.
ADDITIONALLY, ADD THE WAT-4 DETAIL TO THE PLAN.
19. RE: COMMENT #18, ADD A NOTE TO THE PROFILE STATING THE
CONTRACTOR SHALL ROTATE THE TEE DOWNWARD DURING
INSTALLATION OF THE 4" BO TO FACILITATE COMPLETE DRAINAGE
OF THE LINE.
20. LABEL THE SIZE AND TYPE OF MATERIAL OF THE PROPOSED 8"
WATERLINE ON SHEETS C3.0 AND 3.1. ADDITIONALLY, LABEL THE
TYPE OF MATERIAL OF THE PROPOSED 6" WATERLINE ON
THORNAPPLE DRIVE ON SHEET C3.1.
21. IT APPEARS THE WATER AND SEWER SERVICES FOR LOTS 46-55
WERE PREVIOUSLY, OR ARE TO BE, INSTALLED WITH A SEPARATE
SECTION. ADD A NOTE ON SHEET C3.1 INDICATING WHICH SECTION
THEY WERE/ARE TO BE INSTALLED WITH.
22. THE 12" WATERLINE "DEAD-END" ON GOSSAMER DRIVE MUST BE
RESTRAINED. EITHER PROVIDE THRUST RESTRAINT FOR THE LAST
77 LF OR CALCULATE THE REQUIRED LENGTH OF RESTRAINT AND
ADD TO THE PROFILE.
23. INDICATE THAT BOTH EXISTING GV'S LOCATED AT THE
INTERSECTION OF THORNAPPLE COURT WILL NEED TO BE SHUT OFF
IN ORDER TO MAKE THE PROPOSED 6" AND 8" TIE-INS.
24. RESTRAIN ALL JOINTS OF THE PROPOSED 12" WATERLINE IN
THE FILL AREA ON GOSSAMER DRIVE (APPROXIMATELY STA'S
21+80 TO 22+40) AND SHOW ON THE PROFILE.
25. RESTRAIN ALL JOINTS OF THE PROPOSED 8" WATERLINE IN
THE FILL AREA ON CASSIA LOOP NEAR GOSSAMER DRIVE AND
PROVIDE RESTRAINED DI PIPE (APPROXIMATELY STA'S 9+85 TO
10+20) AND SHOW ON THE PROFILE.
26. INSTALL CLAY DAMS PER DETAIL SEW-9 ON EITHER SIDE OF
THE TWO WETLAND CROSSINGS (FOUR TOTAL) AND ADD DETAIL
SEW-9 TO THE PLAN.
27. FOR ALL MH'S LOCATED OUTSIDE OF MAINTAINED AREAS, THE
RIM MUST BE INSTALLED 12" ABOVE THE GROUND ELEVATION. THIS
WOULD INCLUDE MH'S 1-9, 14, AND 15 AND THEY SHOULD BE
CLEARLY NOTED ON THE PROFILES.
28. THE DEFLECTION ANGLE AT MH 16 IS LESS THAN 90 DEGREES
(88.994 DEGREES). PLEASE RECONFIGURE THE MH/SEWER LINE
LOCATION TO PROVIDE A MINIMUM 90 DEGREE DEFLECTION ANGLE.
29. INSTALL THE SEWER LATERAL FOR LOT 11 INTO MH 12.
30. FOR ALL LATERALS TIED DIRECTLY INTO MH'S AT THE INVERT
(LOTS 11, 23, AND 45), ADD A NOTE TO THE PROFILES STATING
THE CONTRACTOR MUST MATCH THE PIPE CROWN ELEVATION OF THE
6" LATERAL WITH THE CROWN OF THE 8" MAIN.
31. BECAUSE THE PROPOSED SLOPE BETWEEN MH 15 AND MH 14
EXCEEDS 10%, CONFIRM THAT THE MH BOOT CONNECTORS AT THE
INVERT-OUT OF MH 15 AND INVERT-IN OF MH 14 WILL PROVIDE
ENOUGH "FLEX" TO ALLOW INSTALLATION AS SHOWN.
32. INDICATE WHICH MH WILL BE THE PROPOSED TIE-IN MH FOR
FUTURE SECTION 17. IT IS ASSUMED TO BE MH 9.
33. INDICATE WHEN THE FILL AREAS LOCATED AROUND MH'S 8, 9,
AND 15 WILL BE COMPLETED IN RELATION TO THE MANHOLE
CONSTRUCTION. UTILITIES DOES NOT WISH TO HAVE MH'S
PROTRUDING "SEVERAL FEET" OUT OF THE GROUND FOR ANY
LENGTH OF TIME. IF THERE WILL BE A DELAY BETWEEN MH
CONSTRUCTION AND FILL COMPLETION, PLEASE INDICATE ON THE
PLAN THE MH'S ARE TO BE SET TEMPORARILY WITH RIM
ELEVATIONS NOT TO EXCEED 12".
34. FOR FUTURE MAINTENANCE REASONS, PROVIDE A MINIMUM 8'
HORIZONTAL SEPARATION BETWEEN THE 8" SEWER LINE NEAR MH
15 AND THE PROPOSED GUARDRAIL. ADDITIONALLY, THE
GUARDRAIL IS A PERMANENT STRUCTURE AND THE POSTS SHOULD
BE LOCATED AS CLOSE TO THE EDGE OF THE EASEMENT AS
POSSIBLE.
35. LABEL THE EXISTING SECTION 14 OFFSITE SEWER EASEMENT,
AS SHOWN ON SHEET C3.2, AND ADD THE RECORDATION
INFORMATION TO THE PLAN.
36. PLEASE CONFIRM THAT THE VERTICAL DEFLECTIONS SHOWN FOR
THE 6" PVC WATERLINE ON THORNAPPLE COURT AND THE 8" PVC
WATERLINE ON CASSIA LOOP CONFORM TO THE ALLOWABLE
DEFLECTIONS SHOWN ON DETAIL WAT-11. IF NOT, ADD THE
APPROPRIATE BENDS. A NOTE SHOULD BE ADDED TO THE PROFILES
FOR THESE LINES STATING DEFLECTIONS FOR ALL WATERLINES
MUST COMPLY WITH DETAIL WAT-11; THEN THE WAT-11 DETAIL
ADDED TO THE PLAN.
37. PROVIDE AT LEAST A 10' SEPARATION BETWEEN MH 7 AND THE
END OF THE 20" CASING PIPE TO ALLOW FOR AN EASIER ACCESS
IF THE CARRIER PIPE EVER HAS TO BE REMOVED. IT IS NOTED
THE PLAN SHOWS A 10' SEPARATION BETWEEN MH 5 AND THE END
OF THE CASING PIPE.
38. LABEL THE WOUS CROSSING NEAR MH 5 ON THE PROFILE;
SHEET C4.5.
39. ADD A SAMPLING STATION (WQM) PER WAT-16, SHEET 1, TO
BE LOCATED ADJACENT TO THE WESTERN LOT LINE OF LOT 1. THE
WQM SHOULD BE LOCATED BETWEEN THE BACK OF THE SIDEWALK
AND THE RIGHT-OF-WAY LINE BUT NOT DIRECTLY IN FRONT OF
LOT 1. ADDITIONALLY, ADD DETAIL WAT-16, SHEET 1 TO THE
PLAN.
40. ADD THE FOLLOWING ADDITIONAL DETAILS TO THE PLAN: FIR-
4, MAN-2, MET-1, AND MET-11.
41. DUE TO THE FACT THAT THE PROPOSED WATER AND SEWER
UTILITIES FOR THIS PLAN CONNECT TO UTILITIES ASSOCIATED
WITH THE WYNWOOD SECTION 14 PLAN (15-0151), BE ADVISED
THAT WYNWOOD AT FOXCREEK SECTION 16 WILL NOT BE RELEASED
FOR CONSTRUCTION UNTIL THE WATER AND SEWER IMPROVEMENTS
IN WYNWOOD SECTION 14 ARE UNDER CONSTRUCTION.
42. THE OWNER IS REQUIRED TO ENTER INTO A COUNTY UTILITIES
CONTRACT PRIOR TO THE START OF CONSTRUCTION. PRIOR TO
THE PREPARATION OF THE UTILITIES CONTRACT, UTILITIES MUST
BE IN RECEIPT OF THE "ACCEPTED" BID PROPOSAL BETWEEN THE
DEVELOPER AND THE COUNTY APPROVED UTILITIES CONTRACTOR AS
WELL AS THE PROJECT'S INFORMATIONAL SHEET FOUND ON THE
"DEVELOPER'S CHECKLIST". PLEASE SEND THOSE TWO ITEMS TO
THE ATTENTION OF BILL PAYNE (PAYNEW@CHESTERFIELD.GOV OR
BY CALLING 804-748-4336). THE BID PROPOSAL MUST BE BASED
ON THE APPROVED SITE PLAN. BE ADVISED THAT IF THE SITE
PLAN IS REVISED AND REAPPROVED SUBSEQUENT TO THE
PREPARATION OR RECORDATION OF THE UTILITIES CONTRACT,
THE BID PROPOSAL SHALL BE REVISED ACCORDINGLY AND A
REVISED UTILITIES CONTRACT MAY BE NECESSARY.
43.AFTER FINAL SITE PLAN APPROVAL, FOUR SETS TOTAL OF
THE APPROVED PLANS MUST BE SENT DIRECTLY TO THE
UTILITIES DEPARTMENT FOR OUR USE DURING CONSTRUCTION
INSPECTION.
ENCLOSED IN SEPARATE EMAIL:
1. DEVELOPER'S CHECKLIST FOR UTILITY PROJECTS
2. INFORMATION REQUIRED FOR UTILITIES CONTRACT
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
REVIEW DEPARTMENT: UTILITIES
REVIEWER / PHONE #: W.B. PAYNE III/751-4336
NAME OF PLAN: WYNWOOD AT FOXCREEK SECTION 16
ADDRESS: 6400 WOOLRIDGE ROAD
SUBMISSION DATE: 6/9/17
PLAN DATED: 6/2/17
REVIEW DATE: 6/19/17
SITE PLAN NUMBER: 16CP0060
COMMENTS: 3RD REVIEW - NOT APPROVED
TABLE REVIEW: YES
PLAT PROCESS:
1.THE CLEARANCE AT THE WATERLINE CROSSING OF STORM PIPE P16
NEAR DI 15 IS SHOWN AS 1.7' ON SHEET C4.7 HOWEVER THE
SEPARATION IS NOT CLEARLY DEMONSTRATED ON SHEET C4.0; PLEASE
REVISE.
2.UTILITIES NOW ALLOWS THE OPTIONAL USE OF C-900 PVC
(DR-18) CARRIER PIPE WITHIN CASING FOR GRAVITY SEWER PROVIDE
THERE ARE NO PROPOSED OR FUTURE HOUSE LATERALS CONNECTED
DIRECTLY TO THE PIPE. PLEASE NOTE HOWEVER THAT THE PVC PIPE
SHOULD BE FULLY RESTRAINED SO IT CAN BE REMOVED FROM THE
CASING IF NECESSARY IN THE FUTURE. IF THIS PVC OPTION IS CHO
PLEASE INDICATE THE TYPE OF RESTRAINT TO BE USED AND CONFIRM
THE RESTRAINED PVC PIPE WILL FIT WITHIN THE PROPOSED CASING.
NOTE THAT PVC RESTRAINT SYSTEMS MUST COMPLY WITH THE
UTILITIES SPECIFICATIONS.
3. ADD 12" OF COMPACTED STONE OVER THE PIPE BETWEEN MH'S
14 AND 15 AND AROUND MH 9 WHERE ALL FINAL DEPTHS WILL
EXCEED 14'.
4. THERE APPEARS TO BE APPROXIMATELY 3.5' OF SPACING BETWEEN
THE BACK OF THE SIDEWALK AND THE RIGHT-OF-WAY LINE ALONG
GOSSAMER DRIVE. AS THE FH LOCATED AT STA 20+48 MUST BE
INSTALLED AT LEAST 3' BEHIND THE SIDEWALK AND GUARDRAIL, PLE
REVISE THE PLAN TO SHOW THE CORRECT FH LOCATION AND PROVIDE
MINIMUM 10' WIDE WATER EASEMENT AS REQUIRED.
5. THERE IS ONLY ONE 2" BO PROPOSED; PLEASE REVISE THE
QUANTITIES TO SHOW ONE 2" BO AND ONE 4" BO.
6. RE: COMMENT #4, THE FH ALONG THORNAPPLE COURT MUST BE
SIMILARLY REVISED TO PROVIDE A MINIMUM 3' OF SPACE BETWEEN
THE BACK OF THE SIDEWALK AND THE FH WITH EASEMENT ADDED AS
NECESSARY.
7. ADD A NOTE INDICATING LOTS 1 THROUGH 45 HAVE PROPOSED
NEW WATER AND SEWER SERVICES WHILE LOTS 46 THROUGH 55 WILL
UTILIZE EXISTING WATER SERVICES AND SEWER LATERALS INSTALLED
PART OF WYNWOOD AT FOXCREEK SECTION 13 (#15-0091).
8. RE: COMMENT #7, ADD THE AS-BUILT SEWER LATERAL
INFORMATION FROM #15-0091 TO THE PLAN FOR LOTS 46 THROUGH
55.
THE PLAN IS NOW ELIGIBLE FOR A TABLE REVIEW. IF THIS OPTION
CHOSEN, IT IS RECOMMENDED REVISIONS BE SUBMITTED IN PDF
FORMAT VIA EMAIL TO PAYNEW@CHESTERFIELD.GOV FOR INFORMAL
REVIEW.
A COUNTY UTILITIES CONTRACT IS REQUIRED PRIOR TO THE
START OF CONSTRUCTION. AFTER FINAL SITE PLAN APPROVAL,
FOUR SETS TOTAL OF THE APPROVED PLANS MUST BE SENT
DIRECTLY TO THE UTILITIES DEPARTMENT FOR OUR USE
DURING CONSTRUCTION INSPECTION.
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
REVIEW DEPARTMENT: UTILITIES
REVIEWER / PHONE #: W.B. PAYNE III/751-4336
NAME OF PLAN: WYNWOOD AT FOXCREEK SECTION 16
ADDRESS: 6400 WOOLRIDGE ROAD
SUBMISSION DATE: 9/21/17
PLAN DATED: 9/19/17
REVIEW DATE: 9/26/17
SITE PLAN NUMBER: 16CP0060
COMMENTS: 4TH REVIEW - APPROVED
THE PLAN, DATED AUGUST 19, 2017 IS NOW APPROVABLE BY
UTILITIES WITH THE FOLLOWING EXCEPTION AS NOTED:
1. REMOVAL OF ONE STREET TREE AS SHOWN ON SHEET L.1 TO AVOID
UTILITY CONFLICTS.
PLEASE BE ADVISED A COUNTY UTILITIES CONTRACT IS REQUIRED
PRIOR TO RELEASE TO CONSTRUCTION.
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
REVIEW DEPARTMENT: UTILITIES
REVIEWER / PHONE #: W.B. PAYNE III/751-4336
NAME OF PLAN: WYNWOOD AT FOXCREEK SECTION 16
ADDRESS: 6400 WOOLRIDGE ROAD
SUBMISSION DATE: 7/27/16
PLAN DATED: 6/13/16
REVIEW DATE: 8/16/16
SITE PLAN NUMBER: 16CP0060
COMMENTS: 3RD REVIEW - NOT APPROVED
TABLE REVIEW:
PLAT PROCESS:
1. PLEASE ADD A 1" MINIMUM DIAMETER CONDUIT IN THE TUBE
TO ACCOMMODATE A FUTURE ULTRASONIC LEVEL TRANSMITTER. THE
PLACEMENT OF THE CONDUIT SHOULD ALLOW FOR THE CONNECTION
OF THE TRANSMITTER TO THE RTU. SPECIFIC QUESTIONS
CONCERNING THIS COMMENT MAY BE ADDRESSED TO DICKY
FENNER AT FENNERR@CHESTERFIELD.GOV OR BY TELEPHONE AT
(804) 751-4974.
2. INDICATE IN THE SPECIFICATIONS THAT ONLY NO-LEAD BRASS
VALVES AND FITTINGS ARE TO BE USED.
3. A 30' MINIMUM DIAMETER HANDRAIL "CAGE" IS REQUIRED TO
ACCOMMODATE UP TO A MAXIMUM OF TWELVE ANTENNAS (FOUR
CARRIERS MAX) AT THE TOP OF THE TANK IN ORDER TO PROVIDE
ENOUGH WORKING ROOM. PLEASE CONFIRM THAT THE LABEL
DIAMETER APPROX EQUAL TO 1/3 OF THE BOWL DIAMETER ON
SHEET M1.4 WILL PROVIDE A 30' MINIMUM DIAMETER AND IF
NOT, ADD A NOTE INDICATING A 30' MINIMUM DIAMETER "CAGE"
IS REQUIRED.
4. RE: COMMENT #3, IN ORDER FOR THE TANK TO BE SET UP FOR
FUTURE COMMUNICATIONS CARRIERS, PENETRATIONS SHOULD BE
ADDED TO THE TANK. PLEASE ADD EIGHT (8) CONDUITS IN THE SLAB
AND EIGHT (8) PENETRATIONS IN THE TOP OF THE TANK PER THE
ENCLOSED CONDUIT ACCESS DETAILS DETAIL. SPECIFIC QUESTIONS
CONCERNING THIS COMMENT MAY BE ADDRESSED TO ANNE
WRIGHT AT WRIGHTA@CHESTERFIELD.GOV OR BY TELEPHONE AT
(804) 768-7582.
5. MODIFY NOTE #2 ON SHEET G1.2 TO ENSURE THAT THE
APPROPRIATE COUNTY PERSONNEL ARE ALSO NOTIFIED.
6. REMOVE DETAILS MAN-7 AND MAN-11 FROM SHEET C3.3.
7. PLEASE PROVIDE A SECTION (SIDE) VIEW SHOWING THE
-OVERFLOW PIPE WALL PENETRATION, AIR BREAK, AND CATCHMENT
BASIN (SEE ENCLOSED OVERFLOW DETAIL). ADDITIONALLY, WILL
BRACING OF THE HORIZONTAL PORTION OF THE OVERFLOW PIPE (AS
SHOWN ON THE DETAIL) BE NECESSARY?
8. PLEASE ADD A NOTE TO THE PLAN INDICATING THE CONTRACTOR
IS TO MOUNT THE PRESSURE TRANSDUCER 5' ABOVE THE FINISHED
FLOOR ELEVATION. IT IS NOTED THIS REQUIREMENT HAS ALREADY
BEEN ADDRESSED IN SPECIFICATIONS SECTION 133150, 2.3, M.
9. ADD A NOTE TO THE PLAN INDICATING THE OPERATION OF ALL
EXISTING CHESTERFIELD COUNTY VALVES, HYDRANTS, ETC. IS TO
BE STRICTLY COORDINATED WITH UTILITIES PERSONNEL.
10. IS THE INTERIOR LADDER MATERIAL ALUMINUM? STEEL? PLEASE
SPECIFY.
11. THERE ARE TWO M1.4 SHEETS IN THE PLAN WITH THE LATTER
SHEET SUPPOSED TO BE SHEET M1.5; PLEASE REVISE.
12. HOW WILL DISSIMILAR METALS BE ADDRESSED RE: THE
CATHODIC PROTECTION SYSTEM; FOR EXAMPLE, IF THE CONTRACTOR
CHOOSES TO USE DI PIPE/FITTINGS IN THE LOWER LEVEL AND
STAINLESS STEEL FOR THE RISER PIPING (AS SHOWN ON SHEET
M1.5)?
13. RE: SECTION 017700; 1.2.A.4, PLEASE ENSURE PROJECT
RECORD DOCUMENTS FOR THE COUNTY INCLUDE O&M WITH
FABRICATION DRAWINGS FOR THE TANK AND COMPONENTS, PLUS
AS-BUILTS.
14. RE: SECTION 017700; 1.2.A.5, PLEASE INDICATE KEYS AND
LOCKS ARE TO BE "COUNTY KEY" FOR COUNTY PERSONNEL ONLY.
15. SECTION 017700; 1.3.A.1 REFERS TO THE OWNER RE: FINAL
PAYMENT HOWEVER A.3 SHOULD STATE OR INCLUDE COUNTY
PERSONNEL RE: OPERATIONS TRAINING.
16. RE: THE COATING SYSTEM, DOES AWWA D102 ADDRESS
RUSTING, "BLEED THROUGH", ETC.
17. INDICATE IN THE SPECIFICATIONS THAT THE CONTRACTOR IS
RESPONSIBLE FOR ACQUIRING ALL APPLICABLE FEDERAL, STATE, AND
LOCAL PERMITS.
18 RE: SECTION 132100; 2.2.E IS NO LONGER VALID; PLEASE
REVISE FOR THE CORRECT OVERFLOW CONFIGURATION.
19.RE: SECTION 132100; 2.3.B, PLEASE REMOVE SINGER VALVE
20. THE SPECIFICATIONS DO NOT APPEAR TO COVER TYPICAL PAINTS
FOR DOORS OR OTHER SURFACES THAT DO NOT HAVE TO COMPLY WITH
NSF PAINT SYSTEMS FOR CONTACT WITH POTABLE WATER. A
SPECIFICATION SHOULD BE PROVIDED FOR THESE ANCILLARY ITEMS.
21. RE: SECTION 132100; 2.5.A, WILL A SIGN BE POSTED
SPECIFYING THE MAXIMUM ALLOWABLE WEIGHT FOR THE CEILING?
22. WILL ARC FLASH LABELING BE PROVIDED FOR ALL APPLICABLE
COMPONENTS? FOR EXAMPLE, THE PAX SYSTEM.
23. RE: SECTION 133150; 2.1.P, WHO WILL PROVIDE ANY
NECESSARY SCADA SYSTEM UPDATES THAT MAY BE REQUIRED AT
THE ADDISON-EVANS WTP?
24. HAS A SPECIFICATION FOR THE RADIO CABLE BEEN PROVIDED?
IF NOT, PLEASE PROVIDE ONE.
25. DO ALL APPLICABLE MATERIALS COMPLY WITH THOSE SHOWN
IN PART 5 OF THE COUNTY'S WATER AND SEWER SPECIFICATIONS;
PLEASE CONFIRM. ADDITIONALLY, A NOTE SHOULD BE ADDED THAT
ALL APPLICABLE MATERIALS SHOULD COMPLY WITH THIS
REQUIREMENT.
IF THESE COMMENTS ARE ADEQUATELY ADDRESSED, THE PLAN (AND
SPECIFICATIONS) MAY BE ELIGIBLE FOR APPROVAL BY UTILITIES AT
A POTENTIAL FORTHCOMING TABLE REVIEW HOWEVER PLEASE
SUBMIT REVISIONS TO BOTH THE PLAN AND SPECIFICATIONS IN
PDF FORMAT FOR INFORMAL REVIEW BEFOREHAND.
DUE TO THE FACT THAT THE PROPOSED 24" WATERLINE FOR THIS
PROJECT CONNECTS TO THE 30" WATERLINE ASSOCIATED WITH THE
UPPER MAGNOLIA GREEN WATERLINE EXTENSION PHASE 1 PLAN
(#15-0051), PLEASE BE ADVISED THE MAGNOLIA GREEN
ELEVATED STORAGE TANK PLAN WILL NOT BE RELEASED FOR
MAY BE NECESSARY.L THE 30" WATERLINE IMPROVEMENTS NOTED
IN #15-0051 ARE UNDER CONSTRUCTION.
PRIOR TO RELEASING THIS PROJECT TO CONSTRUCTION, COPIES OF A
APPLICABLE STATE AND LOCAL AGENCIES APPROVAL LETTERS MUST
BE RECEIVED BY THE UTILITIES DEPARTMENT.
STRICT COORDINATION IS REQUIRED BETWEEN THE CONTRACTOR,
OWNER, AND ENGINEER AND CHESTERFIELD COUNTY AND UTILITIES
PERSONNEL DURING THE CONSTRUCTION OF THIS PROJECT.
THE OWNER IS REQUIRED TO ENTER INTO A COUNTY UTILITIES
CONTRACT PRIOR TO THE START OF CONSTRUCTION. PRIOR TO THE
PREPARATION OF THE UTILITIES CONTRACT, UTILITIES MUST BE IN
RECEIPT OF THE "ACCEPTED" BID PROPOSAL BETWEEN THE
DEVELOPER AND THE COUNTY APPROVED CONTRACTOR AS WELL AS
THE INFORMATIONAL SHEET FOUND ON THE DEVELOPER'S
CHECKLIST". PLEASE SEND THOSE TWO ITEMS TO THE ATTENTION OF
BILL PAYNE (PAYNEW@CHESTERFIELD.GOV OR BY CALLING
804-751-4336). THE BID PROPOSAL MUST BE BASED ON THE
APPROVED SITE PLAN. BE ADVISED THAT IF THE SITE PLAN
IS REVISED AND REAPPROVED SUBSEQUENT TO THE PREPARATION OR
RECORDATION OF THE UTILITIES CONTRACT, THE BID PROPOSAL SHAL
BE REVISED ACCORDINGLY AND A REVISED UTILITIES CONTRACT
MAY BE NECESSARY.
AFTER FINAL SITE PLAN APPROVAL, A TOTAL OF FOUR SETS OF THE
APPROVED PLANS AND SPECIFICATIONS MUST BE SUBMITTED TO THE
UTILITIES DEPARTMENT FOR OUR USE DURING CONSTRUCTION
INSPECTION.
ENCL: OVERFLOW DETAIL (EMAIL ATTACHMENT)
CONDUIT ACCESS DETAILS (EMAIL ATTACHMENT)
REVIEW DEPARTMENT: CHESTERFIELD TRANSPORTATION DEPARTMENT
REVIEWER/PHONE#: STEVEN E. SIMONSON, P.E. (804)748-1037
NAME OF PLAN: WYNWOOD AT FOXCREEK, SEC 16
CASE NUMBER: 16CP0060
LATEST PLAN DATE: 02/03/2016
DEPT. REC'D. DATE: 02/24/2016
SUBMITTAL NUMBER: ONE
REVIEW DATE: 03/15/2016
RECOMMENDATION: NOT APPROVED
TABLE REVIEW: NO
THE WYNWOOD PHASING PLAN DATED FEBRUARY 10, 2010 REQUIRES
THE CONSTRUCTION OF PROFFERED IMPROVEMENTS TO OTTERDALE
ROAD AND AT THE OTTERDALE ROAD/GOSSAMER DRIVE INTERSECTION
IN CONJUNCTION WITH THE DEVELOPMENT OF THIS SECTION
(PROFERRED CONDITION 12.B AND 12.D). THESE IMPROVEMENTS
INCLUDE LEFT AND RIGHT TURN LANES ON OTTERDALE ROAD AT
GOSSAMER DRIVE, AND WIDENING/IMPROVING THE EAST SIDE OF
OTTERDALE ROAD TO AN ELEVEN (11) FOOT WIDE TRAVEL LANE, A
ONE (1) FOOT WIDE PAVED SHOULDER, A SEVEN (7) FOOT WIDE
UNPAVED SHOULDER, AND OVERLAYING THE ENTIRE WIDTH OF THE
ROAD. EITHER THESE IMPROVEMENTS MUST BE INCLUDED WITH THESE
CONSTRUCTION PLANS, OR THE PHASING PLAN MUST BE REVISED.
REVIEW DEPARTMENT: CHESTERFIELD TRANSPORTATION DEPARTMENT
REVIEWER/PHONE#: STEVEN E. SIMONSON, P.E. (804)748-1037
NAME OF PLAN: WYNWOOD AT FOXCREEK, SEC 16
CASE NUMBER: 16CP0060
LATEST PLAN DATE: 06/13/2016
DEPT. REC'D. DATE: 06/27/2016
SUBMITTAL NUMBER: TWO
REVIEW DATE: 07/13/2016
RECOMMENDATION: NOT APPROVED
TABLE REVIEW: NO
THE WYNWOOD PHASING PLAN DATED FEBRUARY 10, 2010 REQUIRES
THE CONSTRUCTION OF PROFFERED IMPROVEMENTS TO OTTERDALE
ROAD AND AT THE OTTERDALE ROAD/GOSSAMER DRIVE INTERSECTION
IN CONJUNCTION WITH THE DEVELOPMENT OF THIS SECTION
(PROFERRED CONDITION 12.B AND 12.D). THESE IMPROVEMENTS
INCLUDE LEFT AND RIGHT TURN LANES ON OTTERDALE ROAD AT
GOSSAMER DRIVE, AND WIDENING/IMPROVING THE EAST SIDE OF
OTTERDALE ROAD TO AN ELEVEN (11) FOOT WIDE TRAVEL LANE, A
ONE (1) FOOT WIDE PAVED SHOULDER, A SEVEN (7) FOOT WIDE
UNPAVED SHOULDER, AND OVERLAYING THE ENTIRE WIDTH OF THE
ROAD. EITHER THESE IMPROVEMENTS MUST BE INCLUDED WITH THESE
CONSTRUCTION PLANS, OR THE PHASING PLAN MUST BE REVISED.
REVIEW DEPARTMENT: CHESTERFIELD TRANSPORTATION DEPARTMENT
REVIEWER/PHONE#: STEVEN E. SIMONSON, P.E. (804)748-1037
NAME OF PLAN: WYNWOOD AT FOXCREEK, SEC 16
CASE NUMBER: 16CP0060
LATEST PLAN DATE: 09/19/2017
SUBMITTAL NUMBER: THREE
REVIEW DATE: 10/18/2017
RECOMMENDATION: APPROVED
TABLE REVIEW: YES
.
REVIEW DEPARTMENT: PLANNING
REVIEW DEPARTMENT : PLANNING
REVIEWER / PHONE # : WHIT KIRTLEY / 706-7691
PLAN NAME : WYNWOOD @ FOXCREEK SECTION 16
PLAN NUMBER : 16CP0032
ORIGINAL PLAN DATE : 2/3/16
REVIEW DATE : 3/22/16
LATEST SUBMISSION DATE : 2/19/16
SUBMITTAL NUMBER : 1
STATUS : CORRECTIONS REQUIRED
TABLE REVIEW : N
1. PUT THE CONSTRUCTION PLAN NUMBER 16CP0060
IN THE LOWER RIGHT CORNER OF EACH SHEET.
2. ADD ZONING CASE 04SN0207 UNDER SITE DATA
3.ADD NOTE REGARDING THE GARAGE ENTRY. ANY OF THESE
UNITS TO BE FRONT LOADED?
4.SIDE YARD SETBACK UNDER TYPICAL SETBACKS IS INCORRECT.
ZONING CASE SET THE SIDE YARD TO 3'.
5. INCLUDE A NOTE IN THE TYPICAL LOT SETBACKS FOR SINGLE
FAMILY E, THAT THE SETBACK MAY BE REDUCED TO ZERO WITH
USE INCLUSION OF A SIDEWALK AND STREET TREES BETWEEN THE
UNIT AND RIGHT OF WAY.
6. REVISE THE TYPICAL LOT SETBACKS FOR SINGLE FAMILY E, SIDE
YARD SETBACK SHOULD SAY "5 OR MORE = 15'.
7. LABEL THE OPEN SPACE BETWEEN LOTS 14 AND 15. ALSO LABEL
OPEN SPACE ADJACENT TO LOT 11.
8. PER 19.1-211 ANY STORMWATER MANAGEMENT FACILITY
OR BMP BASIN VISIBLE TO THE PUBLIC SHALL BE LANDSCAPED
OR OTHERWISE IMPROVED SO THAT THE FACILITIES ARE
VISUALLY ENHANCED. INCLUDE A PLAN DEPICTING VISUAL
ENHANCEMENTS IN THE LANDSCAPE PLAN.
9. REMOVE THE LABEL ON THE EXISTING PRIVATE AMENITY POND
THAT STATES THAT IS SECTION 13. THIS AREA SHOULD BE LABELL
AS OPEN SPACE.
10. WE STRONGLY ENCOURAGE THE REMOVAL OF THE BUILDING
ENVELOPES WHEN ONLY THE TYPICAL MEASUREMENTS ARE SHOWN.
FRONT BUILDING LINES ARE REQUIRED WHEN ACHIEVING THE
REQUIRED WIDTH OR WHEN REQUIRED BY ENVIRONMENTAL
ENGINEERING
11.PROVIDE ELEVATIONS FOR THE TOWNHOUSE PRODUCTS - WE ARE
DISCUSSING THIS INTERNALLY.
12. REVISE THE DATE OF THE TENTATIVE APPROVAL TO AUGUST
20, 2015
13. INCLUDE END UNIT LOT WIDTH FOR SINGLE FAMILY E.
14. SECTION 13 SHALL BE RECORDED PRIOR TO OR IN CONJUNCTION
WITH SECTION 16 FOR COMPLIANCE
15. PROVIDE A CAD FILE DEPICTING THE BOUNDARIES OF SECTION
16
PARKS AND RECREATION
BRIAN GEOUGE
PLANNER
CHESTERFIELD COUNTY
PARKS & RECREATION DEPARTMENT
(804)318-8720
1. APPROVED
--------------------------------------------------------
REVIEW DEPARTMENT: PLANNING
REVIEW DEPARTMENT : PLANNING
REVIEWER / PHONE # : WHIT KIRTLEY / 706-7691
PLAN NAME : WYNWOOD @ FOXCREEK SECTION 16
PLAN NUMBER : 16CP0032
ORIGINAL PLAN DATE : 2/3/16
REVIEW DATE : 7/14/17
LATEST SUBMISSION DATE : 2/19/16
SUBMITTAL NUMBER : 3
STATUS : CORRECTIONS REQUIRED
TABLE REVIEW : N
..
1. SECTION 13 SHALL BE RECORDED PRIOR TO
OR IN CONJUNCTION WITH SECTION 16 FOR
COMPLIANCE
.
2. PROVIDE A CAD FILE DEPICTING THE
BOUNDARIES OF SECTION 16.
.
3. ON THE STREET TREE PLAN, RELOCATE ANY TREE THAT IS
DEPICTED WITHIN AN EASEMENT. THIS INCLUDES THE
STORMWATER EASEMENT ADJACENT TO LOTS 8-10, 34,
LOTS 19 AND 20 ON THE BMP SIDE. THIS INCLUDES THE
STORMWATER EASEMENT ADJACENT TO LOTS 8-10, 34,
LOTS 19 AND 20 ON THE BMP SIDE. THIS INCLUDES THE
SIGHT DISTANCE EASEMENTS ADJACENT TO LOTS 23 AND 47.
..
4. THE PLAN SHOULD INCLUDE THE IMPROVEMENTS REQUIRED BY
THE TRANSPORTATION DEPARTMENT TO CONNECT GOSSAMER
DRIVE TO OTTERDALE ROAD. REMOVAL OF THE CONNECTION
TO OTTERDALE ROAD WILL REQUIRE A MAJOR CHANGE TO 08TS0122
REVIEW DEPARTMENT: FIRE AND LIFE SAFETY
REVIEWER / PHONE#: KIM LESTER / 748-1489
PLAN NAME: WYNWOOD SECTION 16
PLAN NUMBER: 16CP0060
REVIEW DATE: 2/29/16
LATEST SUBMISSION DATE: 5/14/15
SUBMITTAL NUMBER: 1ST REVIEW
STATUS: NOT APPROVED
TABLE REVIEW: NO
PRIOR TO THE CONSTRUCTION PLAN APPROVAL BUILDING ELEVATIONS
SHALL BE SUBMITTED TO SEE IF THE PLAN SUBMITTAL WILL MEET
IFC 2012, D105 REQUIREMENTS.
PLACE A NOTE ON THE PLANS THAT STATES "NO BUILDING PERMITS
WILL NOT BE RELEASED FOR LOTS 3 AND 10 ON GOSSAMER DRIVE
UNTIL THE TEMPORARY CUL-DE-SAC IS BUILT OR THE EXTENSION OF
ROAD IS BUILT WHICHEVER COMES FIRST.
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
REVIEW DEPARTMENT: FIRE AND LIFE SAFETY
REVIEWER / PHONE#: KIM LESTER / 748-1489
PLAN NAME: WYNWOOD SECTION 16
PLAN NUMBER: 16CP0060
REVIEW DATE: 6/29/16
LATEST SUBMISSION DATE: 6/13/16
SUBMITTAL NUMBER: 2ND REVIEW
STATUS: NOT APPROVED
TABLE REVIEW: NO
PRIOR TO CONSTRUCTION PLAN APPROVAL BUILDING ELEVATIONS
SHALL BE SUBMITTED TO SEE IF THE PLAN SUBMITTAL WILL MEET
IFC 2006, D105 REQUIREMENTS.
SECTION 13 SHALL BE RECORDED PRIOR TO SECTION 16 OR IN
CONJUNCTION WITH SECTION 16.
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
REVIEW DEPARTMENT: FIRE AND LIFE SAFETY
REVIEWER / PHONE#: KIM LESTER / 748-1489
PLAN NAME: WYNWOOD SECTION 16
PLAN NUMBER: 16CP0060
REVIEW DATE: 6/26/17
LATEST SUBMISSION DATE: 6/12/17
SUBMITTAL NUMBER: 3RD REVIEW
STATUS: NOT APPROVED
TABLE REVIEW: NO
.
PRIOR TO CONSTRUCTION PLAN APPROVAL BUILDING ELEVATIONS
SHALL BE SUBMITTED OR A NOTE SHALL BE PLACE ON THE PLANS
THAT READ "THE HEIGHT OF THE BUILDING DOES NOT EXCEED 30
FEET FROM THE EAVE OF THE PITCHED ROOF TO SIX FEET OUT FROM
THE FOUNDATION."
.
RELOCATE THE HYDRANT THAT IS ON GOSSAMER DRIVE WHERE IT'S
NOT BEHIND THE GUARDRAIL.
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++
REVIEW DEPARTMENT: FIRE AND LIFE SAFETY
REVIEWER / PHONE#: KIM LESTER / 748-1489
PLAN NAME: WYNWOOD SECTION 16
PLAN NUMBER: 16CP0060
REVIEW DATE: 10/13/17
LATEST SUBMISSION DATE: 10/12/17
LATEST REVISION DATE: 9/19/17 M
SUBMITTAL NUMBER: 4TH REVIEW
STATUS: APPROVED WITH CONDITION
TABLE REVIEW: YES
.
THE HEIGHT OF THE BUILDING SHALL NOT EXCEED 30
FEET FROM THE EAVE OF THE PITCHED ROOF TO SIX FEET OUT
FROM THE FOUNDATION OR THE BUILDINGS WILL NEED TO BE
SPRINKLERED.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
============================================================
============================================================
REVIEW DEPARTMENT : ENVIRONMENTAL ENGINEERING
REVIEWER/PHONE # : MARIA JENKINS/751-2335
NAME OF PLAN : WYNWOOD SECTION 16
SITE PLAN NO. : 16CP0060
LATEST PLAN DATE : 02/03/16
DEPT. REC'D DATE : 02/19/16
SUBMITTAL NUMBER : 1
REVIEW DATE : 03/17/16
RECOMMENDATION : REVISIONS REQUIRED
TABLE REVISION : NO
PLAT PROCESSING : NO
1. IT IS THE RESPONSIBILITY OF THE APPLICANT TO COMPLY
WITH AND/OR ACQUIRE ALL APPLICABLE FEDERAL AND/OR STATE
PERMITS IN RELATIONSHIP TO ENVIRONMENTAL FEATURES INCLUDING
BUT NOT LIMITED TO WETLANDS, SURFACE WATERS (E.G. VSMP
PERMIT FOR CONSTRUCTION SITES, GROUND WATER AND AIR
QUALITY) FINAL APPROVAL OF THESE PLANS WILL NOT RELIEVE YOU
OF YOUR RESPONSIBILITY. WETLANDS DOCUMENTATION MUST BE
RECEIVED BY THIS DEPARTMENT PRIOR TO ISSUANCE OF THE LAND
DISTURBANCE PERMIT.
2. THIS OFFICE RECOGNIZES THAT THE 10-YEAR PRE/10-YEAR POST
REQUIREMENTS FOR FLOOD PROTECTION MAY BE ADDRESSED BY
DISCHARGING INTO THE 100-YEAR FLOODPLAIN.
=== EROSION CONTROL ===
1. AN ITEMIZED EROSION CONTROL COST ESTIMATE MUST BE
SUBMITED FOR REVIEW AND/OR APPROVAL.
2. AS A PREREQUISITE TO THE ISSUANCE OF A LAND
DISTURBANCE PERMIT:
A) A COPY OF THE AUTOCAD FILE MUST BE SUBMITTED TO
CAROLE CLIBORNE OF THE ENVIRONMENTAL ENGINEERING. THE
AUTOCAD FILE MUST BE SAVED AS A .DWG OR .DXF IN AUTOCAD
VERSION 2009 OR EARLIER AND REFERENCED DIRECTLY TO THE
VIRGINIA STATE PLANE COORDINATE SYSTEM, SOUTH ZONE IN
THE NAD83 DATUM. THE AUTOCAD FILE MAY BE SUBMITTED ON A
CD, DVD, OR VIA EMAIL AND MUST BE CLEARLY LABELED WITH
THE SUBDIVISION NAME AND SECTION, SUBDIVISION PLAN
NUMBER, ENGINEERING FIRM AND CAD FILE PREPARER'S NAME
AND PHONE NUMBER. THE FILE MUST CONTAIN THE FOLLOWING,
EACH CLEARLY LABELED IN SEPARATE LAYERS:
I.EDGES OF ROADS TO INCLUDE CURB AND GUTTER; AND
II. EDGES OF SIDEWALKS;
THE FILE MUST BE APPROVED BY ENVIRONMENTAL ENGINEERING
PRIOR TO ISSUANCE OF THE LAND DISTURBANCE PERMIT.
B) FLAGGING AROUND USACOE JURISDICTIONAL WETLANDS,
BUFFERS, AND SENSITIVE AREAS MUST BE VISIBLE.
C) DOCUMENTATION FROM THE USACOE/DEQ MUST BE RECEIVED
VERIFYING COMPLIANCE TO WETLAND PERMIT REGULATIONS.
D) A PROCESSED VSMP REGISTRATION AND FEE FORM MUST BE
RECEIVED.
E) IF APPLICABLE, A COPY OF VDOT LAND USE PERMIT MUST
BE RECEIVED.
F) AN EROSION CONTROL BOND MUST BE POSTED.
G) AS APPLICABLE, A SWPPP BOOKLET (3 RING BINDER) MUST
BE PROVIDED.
3. THESE ARE IN REGARDS TO THE MS-19:
A) PLEASE PERFORM MS-19 ANALYSIS AT THE NATURAL
DRAINAGEWAY DOWNSTREAM OF OUTFALL STR. 35. SUBMIT 2-YEAR
STORM CALCULATIONS, SCALED X-SECTION AND SHOW/LABEL THE
MS-19 SECTION-LOCATION ON THE PLANS. IN ADDITION, UPDATE
THE MS-19 TABLE TO INCLUDE THIS LOCATION.
FURTHERMORE, SUBMIT MS-19 VARIANCE REQUEST LETTER
SITUATION E FOR NO DISCHARGING DIRECTLY TO THE
CENTERLINE OF THE NATURAL CHANNEL FOR APPROVAL AND
DOCUMENTATION.
B) PLEASE REVISE THE ADEQUACY SITUATION AT MS-19
SECTIONS 29 AND 31 IN THE MS-19 TABLE (SHEET C5.2) TO
BE E AS OPPOSED TO B.
IN ADDITION, SUBMIT MS-19 VARIANCE REQUEST LETTER
SITUATION E FOR NO DISCHARGING DIRECTLY INTO THE
CENTERLINE OF THE NATURAL CHANNEL.
C) PLEASE REVISE MS-19 SEC. 31 X-SECTION (SHEET C5.2)
THE LOWEST POINT OF THE SURVEYED X-SECTION APPEARS TO BE
215.47 BASED ON THE WORKSHEET CALCULATIONS AS OPPOSED TO
+/- 219.80. IN ADDITION, REVISE THE 2-YEAR WSE, WHICH
APPEARS TO BE 215.74 IN LIEU OF 219.90. REVISE
ACCORDINGLY.
3. WE OFFER, BUT NOT LIMITED TO, THE FOLLOWING COMMENTS:
A) PLEASE CLARIFY IF THE EXISTING AMENITY POND IS STILL
FUNCTIONING AS A SEDIMENT BASIN. IF NOT ADDITIONAL
EROSION AND SEDIMENT CONTROL MEASURES (I.E. SUPER SILT
FENCE, TURBIDITY CURTAIN, ETC.) SHOULD BE PROVIDED TO
PREVENT THE DISTURBED AREAS FROM THE ALLEY/TOWNHOUSES
DRAINING TO THIS POND.
OTHERWISE, PROVIDE ADDITIONAL NOTES AND DETAILS IF THIS
AMENITY POND IS STILL FUNCTIONING AS SEDIMENT BASIN. A
FURTHER DISCUSSION MAY BE HELPFUL.
B) PLEASE PROVIDE INLET PROTECTION AT THE EXISTING
STRUCTURES EX.5 AND EX.21. REFLECT THE CHANGES ON THE EC
PHASE I AND PHASE II.
C) PLEASE REVISE THE TEMPORARY SEDIMENT TRAP DETAIL
(SHEET C2.6) TO SPECIFY 1:1 OR FLATTER TO THE SIDE SLOPE
OF THE EXCAVATED WET VOLUME.
D) PLEASE PROVIDE A SMALL EXCAVATED PIT WITH TEMPORARY
OUTLET GRAVEL STRUCTURE TO BE LOCATED AT THE TOE OF THE
FUTURE FILL GRADING IN THE PROXIMITY OF THE PROPOSED
RETAINING WALL.
IN ADDITION, PROVIDE DIVERSION DIKE AND SUPER SILT FENCE
TO START IN THE VICINITY OF LOT 32 AT THE TOE OF THE
FUTURE FILL GRADING AND CONTINUE TO SURROUND THIS FILL
GRADING UNTIL IT REACHES THE REQUESTED SMALL EXCAVATED
PIT (REFER TO THE PREVIOUS PARAGRAPH). REFLECT THE
CHANGES ON THE EC PHASE I/PHASE II. IN ADDITION, INCLUDE
THE ENCLOSED DETAIL OF THE EXCAVATED PIT WITH GRAVEL
OUTLET STRUCTURE ON THE EC PLANS.
E) PLEASE PROVIDE DIVERSION DIKE AND SUPER SILT FENCE TO
START NEAR THE RETAINING WALL AND CONTINUE TO SURROUND
THE WETLANDS ON THE NORTHERN SIDE AND THE FILL GRADING
PERTINENT TO THE TEMPORARY CUL-DE-SAC ON GOSSAMER DRIVE
AND END THIS SUPER SILT/DIVERSION DIKE AT THE SB1.
AFTERWARD THE ST1 WOULD NOT BE NEEDED. REFLECT THE
CHANGES ON THE EC PHASE I AND PHASE II.
F) PLEASE REVISE THE EC PHASE II TO SPECIFY TEMPORARY
SLOPE DRAIN(S) FOR FILLING THAT EXCEEDS 5' IN HEIGHT
(I.E. AT THE END OF THE CUL-DE-SAC ON THORNAPPLE COURT,
AT THE END OF ALLEY #5, AT THE END OF THE CUL-DE-SAC ON
GOSSAMER DRIVE, ETC.).
PLEASE BE SURE THESE TEMPORARY SLOPE-DRAINS END INTO A
SEDIMENT BASIN, SEDIMENT TRAP AND/OR EXCAVATED PITS.
G) PLEASE EXTEND THE SUPER SILT FENCE SPECIFIED FOR THE
INSTALLATION OF THE OFFSITE SANITARY SEWER TO BE NEAR
MH#8. REFLECT THE CHANGES ON THE EC PHASE II.
IN ADDITION, PROVIDE SAFETY FENCE TO BE LOCATED ON THE
EASTERN SIDE OF THE SANITARY SEWER WITHIN THE LIMITS OF
THE SANITARY EASEMENT WHERE THE SANITARY SEWER
ENCROACHES THE RPA AREA. REFLECT THE CHANGES ON SHEETS
C2.1, C2.2, ETC.
H) PLEASE PROVIDE SUPER SILT FENCE TO SURROUND THE ROAD
FILL TEMPLATE IN THE PROXIMITY OF STATION 22+70 AND
CONTINUE THIS SUPER SILT FENCE UNTIL IT REACHES THE SB1.
A SMALL EXCAVATED PIT WITH OUTLET GRAVEL OUTLET
STRUCTURE SHOULD BE PROVIDED AT THE TOE OF THE ROAD FILL
TEMPLATE IN THE PROXIMITY OF STATION 22+50. REFLECT THE
CHANGES ON THE EC PHASE I/PHASE II. ADJUST THE SUPER
SILT FENCE TO INCLUDE THIS EXCAVATED PIT.
I) PLEASE PROVIDE SUPER SILT FENCE TO SURROUND THE FILL
DAM SECTION OF THE SB1. REFLECT THE CHANGES ON THE EC
PHASE I/PHASE II.
J) PLEASE SHOW ON THE EC PHASE I THE SUPER SILT FENCE
SPECIFIED TO SURROUND THE FILL SECTION PERTINENT TO
ALLEY #3, CUL-DE-SAC ON THORNAPPLE COURT, ETC.
IN ADDITION, PROVIDE A DIVERSION DIKE ALONG THE SUPER
SILT FENCE TO BE LOCATED ON THE UPSTREAM SIDE OF THIS
SSF TO DIVERT MORE AREA TO THE ST2.
THE LOCATION OF THIS SSF/DIVERSION DIKE MAY BE
ADJUSTED/RELOCATED FURTHER DOWNSTREAM DEPENDING ON THE
EXISTING TOPOGRAPHY. THIS IS TO ENSURE THAT UPSTREAM
DISTURBED AREAS CAN DRAIN TO THE ST2.
ADDITIONALLY, REVISE THE ST2 TO ACCOUNT FOR ADDITIONAL
DRAINAGE AREA. REFLECT THE CHANGES ON ALL APPLICABLE
SHEETS.
K) PLEASE BE SURE TO PROVIDE DIVERSION DIKE DETAIL AND
TEMPORARY SLOPE DRAIN DETAIL ON THE EC PLANS.
4. IF TIMBERING IS REQUIRED ON THE PROJECT, IT SHOULD BE
INCORPORATED INTO THE EROSION CONTROL PLAN / NARRATIVE AND
SHOULD NOT BEGIN UNTIL AFTER THE ISSUANCE OF A LAND
DISTURBANCE PERMIT AND THE INSTALLATION OF THE APPROVED
EROSION CONTROL DEVICES.
==== CBPA =====
1. PLEASE REVISE THE IMPERVIOUS ACRES TO BE USED IN THE
PRO-RATA PAYMENT IN ITEM 3 UNDER GENERAL NOTES (SHEET C1.0)
TO BE 18.00X0.23/2.22=1.86.
2. DISCREPANCIES WERE FOUND WHEN COMPARING THE AVERAGE
IMPERVIOUS FOR LOT TYPE A THRU E SHOWN ON THE COVER SHEET
(SHEET C1.0) WITH THE CBPA SHEET. BE SURE THE INFORMATION
IS CONSISTENT THROUGHOUT THE PLAN SET.
3. THESE ARE IN REGARDS TO THE WORKSHEET A CALCULATIONS:
A) PLEASE REVISE THE WORKSHEET A CALCULATIONS TO USE THE
MINIMUM ALLOWABLE PERCENT IMPERVIOUS COVER TABLE FOR
BOTH TOWNHOUSES AND SINGLE FAMILY AS OPPOSED TO ONLY THE
SINGLE FAMILY. REFER TO THE IN-HOUSE CHECK WORKSHEET A
CALCULATIONS.
B) REVISE STEP 4 FOR THE ONSITE DRAINAGE AREAS TO
SEPARATE THE AREAS BY THE TOWNHOUSES/SINGLE FAMILY, OPEN
SPACE, RIGHT-OF-WAY AND SIDEWALK/ALLEY WITH THE
PERTINENT % IMPERVIOUS. SINCE ALLOWABLE PERCENT FOR THE
LAND USE COVER IS OUTSIDE THE RANGE WHEN USE THE MINIMUM
ALLOWABLE PERCENT IMPERVIOUS COVER TABLE 2.
C) IT APPEARS THERE IS A SMALL AREA OUTSIDE OF THIS
SECTION PERTINENT TO GOSSAMER DRIVE (I.E. ROAD AND
SIDEWALK) THAT WAS CONSIDERED TO BE PART OF ONSITE
DRAINAGE AREAS. IT SHOULD BE SHOWN IN THE WORKSHEET A
CALCULATIONS TO BE OFFSITE DRAINAGE AREAS. REFER TO IN-
HOUSE CHECK WORKSHEET A CALCULATIONS.
D) REVISE THE % PHOSPHOROUS REMOVAL EFFICIENCY TO BE 50%
FOR DESIGN 6 AS OPPOSED TO 65%. HOWEVER, AN IN-HOUSE
CHECK WAS PERFORMED BASED ON 50% PHOSPHORUS REMOVAL
EFFICIENCY AND IT APPEARS TO HAVE A DEFICIT 0.54 LBS/YR.
REFER TO IN-HOUSE CHECK WORKSHEET A CALCULATIONS.
IN THIS CASE, CONSIDER USING DESIGN 6.1 BY PROVIDING 10'
TO 12' WIDE PLANTED AQUATIC BENCH WITH EFFICIENT
PHOSPHORUS REMOVAL OF 65%. A FURTHER DISCUSSION IS
RECOMMENDED. REFLECT THE CHANGES ON ALL APPLICABLE
SHEETS.
BE SURE TO PROVIDE A SEPARATE SHEET TO SHOW THE PROPOSED
PLANTING DESIGN ON THE PLAN VIEW, PLANTING SCHEDULE,
NOTES, ETC. A FURTHER DISCUSSION IS RECOMMENDED.
4. PLEASE SHOW/LABEL THE DIMENSION OF 100' RPA BUFFER AREA.
REFLECT THE CHANGES ON ALL APPLICABLE SHEETS.
5. PLEASE PROVIDE TYP. RPA SIGN AT THE LIMITS OF THE RPA
THAT ARE LOCATED OUTSIDE THE PROPOSED OFFSITE SANITARY
EASEMENT IN THE VICINITY OF THE PROPOSED MH STR. 5. REFLECT
THE CHANGES ON THE EC PLANS, ROAD PLANS, GRADING PLANS,
ETC.
6. PLEASE REVISE THE CBPA CALCULATION SUMMARY TABLE (SHEET
CBPA) TO USE THE ENCLOSED REVISED TABLE. IN ADDITION, THE
CBPA CALCULATION SUMMARY TABLE SHOULD ALSO BE REVISED TO
REFLECT THE REVISED DATA FOR BMP#4 REQUESTED IN THIS
REVIEW.
7. PLEASE REVISE THE CBPA/MS-4 TABLE (SHEET CBPA) TO REFER
TO RETENTION IN THE BMP TYPE. IN ADDITION, REFLECT THE
REVISED LOAD REMOVED, AND THE REMOVAL EFFICIENCY REQUESTED
IN THIS REVIEW.
8. PLEASE REVISE THE RPA SIGN DETAIL (SHEET C2.5) TO
SPECIFY THE POST "4" X 4" PRE-TREATED" AS OPPOSED TO STD.
STEEL POST.
==== SWM/BMP =====
1. PLEASE BE SURE THE PROPOSED SWM/BMP EASEMENT IS
DELINEATED 25' OFF THE 100-YEAR WSE ON EASTERN
SIDE/GOSSAMER DRIVE. IT IS CURRENTLY MEASURED 18'/20' OFF
THE 100-YEAR WSE. REFLECT THE CHANGES ON ALL APPLICABLE
SHEETS.
IN ADDITION, ADJUST THE FENCE LOCATION TO BE DELINEATED
WITHIN THE REVISED SWM/BMP EASEMENT.
2. PLEASE BE SURE TO LABEL THE "SWM/BMP EASEMENT" ON ALL
APPLICABLE SHEETS. IT IS CURRENTLY MISSING FROM THE PLAN
VIEWS.
3. PLEASE SHOW/LABEL A PORTION OF THE LIMITS OF THE 50'
VEGETATIVE PERIMETER YARD SETBACK MEASURED FROM THE 100-
YEAR WSE IN THE VICINITY OF LOTS 1/2. REFLECT THE CHANGES
ON ALL APPLICABLE SHEETS.
4. THESE ARE IN REGARDS TO THE SWM/BMP GRADING PLAN (SHEET
C2.7):
A) PLEASE REVISE THE SCALE TO BE SHOWN IN 1"=20' AS
OPPOSED TO 1"=30'.
B) PLEASE SHOW/LABEL THE AUTHORIZED VEHICLE ONLY SIGN
WITHIN THE ENTRANCE OF THE BMP ACCESS ROAD. REFLECT THE
CHANGES ON ALL APPLICABLE SHEETS.
IN ADDITION, INCLUDE THE ENCLOSED AUTHORIZED VEHICLE
ONLY SIGN DETAIL ON SHEET C2.7.
C) PLEASE SPECIFY THE SIDE SLOPE WITH DIRECTIONAL FLOW
ARROWS TO THE INNER/OUTER SIDE OF THE DAM SECTION AND
CUT/FILL SECTION, WHICH APPEARS TO BE 3:1 AND 2:1 BELOW
THE NWSE. REFLECT THE CHANGES ON THE PLANS AND PROFILES.
D) PROVIDE DIMENSIONS OF THE TOP OF THE EMBANKMENT AND
LABEL IT ACCORDINGLY.
E) PLEASE RELOCATE THE RPA SIGN LOCATED NEAR THE TOE OF
THE DAM TO BE LOCATED NEAR THE RPA LIMITS AND LABEL THE
ICON AS RPA SIGN. REFLECT THE CHANGES ON ALL APPLICABLE
SHEETS.
F) PLEASE LABEL THE EASEMENT THAT IS ENCLOSING
STRUCTURES 15/15P AND 2/2P THAT IS OUTSIDE THE SWM/BMP
EASEMENT AS 16' DRAINAGE EASEMENT. REFLECT THE CHANGES
ON ALL APPLICABLE SHEETS.
G) PLEASE DEPICT/LABEL THE LIMITS OF THE PROPOSED
GUARDRAIL SPECIFIED ON THE LEFT SIDE OF GOSSAMER DRIVE
ON ALL APPLICABLE PLAN VIEWS AS APPEARS ON SHEET C3.7.
5. PLEASE BE SURE THE MODIFIED RISER/PRINCIPAL SPILLWAY
CROSS-SECTION (SIDE VIEW AND PLAN VIEW) ARE SHOWN TO SCALE.
IN ADDITION, REVISE THE DIAMETER OF THE RISER IN PLAN VIEW
TO BE 2' AS OPPOSED TO 3' AND REVISE THE LABELING OF 24'
DIA CL III RCP RISER TO BE 24" DIAM. CLASS III O-RING RCP
RISER.
6. PLEASE CONSIDER PROVIDING ONE OUTFALL AS OPPOSED TWO.
SINCE, THIS OFFICE IS CONCERNED THAT HAVING TWO SEDIMENT
FOREBAY WOULD TAKE MORE SPACE IN THE WETPOND REDUCING THE
AVAILABLE REQUIRED VOLUME TREATMENT.
IN ADDITION, BAFFLES APPEAR REQUIRED SINCE OUTFALL STR. 14
CARRIES MORE THAN 30% OF THE PEAK RATE OF THE INFLOW.
7. PLEASE CONSIDER STEEPING THE SIDE SLOPE(S) OF THE
SEDIMENT FOREBAY FROM 3:1 TO 1:1 TO REDUCE THE SPACE TAKEN
BY THE FOREBAY IN THE WETPOND. ADDITIONALLY, THE TOP WIDTH
OF THE FOREBAY COULD BE 2' INSTEAD OF 3'. REFLECT THE
CHANGES IN THE PLAN VIEWS AND DETAILS.
8. PLEASE REVISE ITEM 3 TO SPECIFY THAT THE 12" VALVE SHALL
BE PROVIDED 3' FROM THE BOTTOM OF THE RISER AS OPPOSED TO
12".
9. PLEASE REVISE ITEM I IN THE SWM/BMP CERTIFICATION TO
REMOVE THE FIRST SENTENCE THAT STATES "IF SWM/BMP DAM
QUALIFIES TO BE REGULATED BY THE DAM SAFETY REGULATIONS."
======= ROAD AND DRAINAGE =======
1. UPON COMPLETION OF A FIELD INSPECTION, ADDITIONAL
COMMENTS MAY ARISE IF INDICATED BY THE EXISTING CONDITIONS.
2. PLEASE REVISE THE LINE PERTINENT TO THE LIMITS OF THE
100-YEAR FEMA FLOODPLAIN TO INCLUDE THE TEXT FEMA-FEMA-FEMA
WITHIN THE LINE.
IN ADDITION, INCLUDE/LABEL ONE OR TWO 100-YEAR FEMA
FLOODPLAIN SECTIONS-LOCATIONS WITH ELEVATIONS ON THE PLANS
ALONG BLACKMAN CREEK WITHIN THE LIMITS OF THIS PROJECT.
REFLECT THE CHANGES ON ALL APPLICABLE SHEETS.
3. PLEASE PROVIDE THE SCALE AND NORTH ARROW ON SHEET C1.2.
4. AT LEAST ONE BENCHMARK WITH ELEVATION THAT REFERENCES TO
MEAN SEA LEVEL MUST BE SHOWN WITHIN THE LIMITS OF THE
SUBDIVISION SECTION. PLEASE ADDRESS.
5. PLEASE BE SURE TO INDICATE WITH ARROWS, THE DIRECTION OF
FLOW IN ALL SURFACE DRAINAGE, ALONG THE CENTERLINE OF THE
NATURAL DRAINAGE, WETLAND AREAS, STREAMS, ETC. REFLECT THE
CHANGES ON ALL APPLICABLE SHEETS.
6. PLEASE REVISE ITEM #12 UNDER GENERAL NOTES (SHEET C1.0)
TO STATE, "ALL ALLEYS, STORM SEWER NOT WITHIN THE COUNTY
DRAINAGE EASEMENT AND DI-1 INLETS WITH THE ALLEYS, ARE
PRIVATE OWNERSHIP AND WILL BE MAINTAINED BY THE HOME OWNERS
ASSOCIATION (HOA). THE GRATED DI-1 OPENINGS WITHIN ALLEYS
WILL BE MAINTAINED BY THE HOA. THIS WILL BE SO NOTED ON THE
RECORD PLANT."
7. PLEASE SHOW THE WETLANDS WITHIN THE WOUS IN THE
PROXIMITY OF LOTS 1/2 AS APPEARS IN THE TENTATIVE PLAN. IN
ADDITION, BE SURE TO PROVIDE 35' BUILDING SETBACK OFF THE
WETLAND ON LOT 2. REFLECT THE CHANGES ON ALL APPLICABLE
SHEETS.
8. PLEASE PROVIDE AN APPROVABLE ROAD DESIGN FOR SAG
CONDITION PER VDOT STANDARDS FOR THE FUTURE EXTENSION
GOSSAMER DRIVE OF APPROXIMATELY 300' BEYOND STATION
17+12.49. EXTEND THE GOSSAMER PROFILE TO INCLUDE THE FUTURE
EXTENSION OF THIS ROAD WITH PERTINENT INFORMATION AND
INCLUDE FUTURE CULVERTS WITH SUPPORT 10/100-YEAR CULVERT
CALCULATIONS. IN ADDITION, ESTABLISH THE 100-YEAR BACKWATER
LIMITS/ELEVATION ON THE PLANS.
ADDITIONALLY, PLEASE SPECIFY MINIMUM FINISH FLOOR (MFF) ON
LOT 33 TO BE 1' ABOVE THE ROAD SAG OR THE 100-YEAR
BACKWATER ELEVATION (IF THE LIMITS OF THE 100-YEAR BW IS
ENCROACHING THIS LOT), WHICHEVER IS GREATER.
9. PLEASE SPECIFY 35' BUILDING SETBACK OFF THE WETLANDS ON
THE SOUTHERN SIDE OF LOT 33. REFLECT THE CHANGES ON ALL
APPLICABLE SHEETS.
10. PLEASE BE SURE TO LABEL ALL THE EXISTING CONTOURS WITH
ELEVATIONS. REFLECT THE CHANGES ON ALL APPLICABLE SHEETS
(I.E. SHEETS C2.7, C3.3, C3.4, C5.0, C5.1, C5.3, CBPA,
ETC.).
11. PLEASE REVISE THE PROPOSED GRADING PERTINENT TO THE
FILLS SECTION OF THE PROPOSED ALLEY #4. IT APPEARS THE FILL
SHOULD END IN THE PROXIMITY OF 259.00 CONTOUR-ELEVATION.
PLEASE CLARIFY OR REVISE ACCORDINGLY.
12. DISCREPANCIES WERE FOUND WHEN COMPARING THE PROPOSED
CONNECTIVITY IN THE ALLEYS WITH THE CONSTRUCTION PLANS AND
TENTATIVE PLANS. THE CONSTRUCTION PLANS SHOW THE PROPOSED
ALLEY(S) #2/#4 DISCONNECTED AND THE TENTATIVE PLANS SHOW
THESE PROPOSED ALLEY(S) #2/#5 BE CONNECTED. PLEASE CLARIFY
OR REVISE ACCORDINGLY. THE DEAD-END ALLEYS ARE PROHIBITED BY
ORDINANCE.
13. PLEASE SHOW THE ICON FOR MH AT STR. 1A ON ALL APPLICABLE
PLAN VIEWS. IN ADDITION, REVISE THE STORM 3 TO 1 PROFILE
(SHEET C4.8) TO LABEL STR.#34 AS STR. #1A.
14. PLEASE BE SURE SHOW/LABEL THE 100-YEAR FLOODPLAIN LIMITS
ON ALL APPLICABLE SHEETS (I.E. SHEETS C1.2, C3.0, C3.1,
ETC.).
IN ADDITION, BE SURE THAT THE LIMITS OF THE 100-YEAR
FLOODPLAIN HAVE BEEN LABELED AS "100-YEAR FLOODPLAIN
LIMITS". REFLECT THE CHANGES ON ALL APPLICABLE SHEETS.
15. PLEASE ESTABLISH THE 100-YEAR FLOODPLAIN LIMITS
IMMEDIATELY DOWNSTREAM OF THE OUTFALL STRUCTURES 29, 31, 35,
ETC. TO COMPLY WITH FLOOD PROTECTION. SUBMIT SUPPORT
CALCULATIONS, SCALED X-SECTIONS AND SHOW/LABEL THE 100-YEAR
FLOODPLAIN SECTIONS-LOCATIONS ON THE PLANS.
16. THESE ARE IN REGARDS TO THE FLOODPLAIN AREAS (SHEET
C5.3):
A) PLEASE REVISE THE GRAPHICAL SCALE, WHICH APPEARS TO
BE 1"=60' AS OPPOSED 1"=100'. REVISE ACCORDINGLY.
B) PLEASE BE SURE TO LABEL ALL THE EXISTING/PROPOSED
CONTOURS WITH ELEVATIONS.
C) A DISCREPANCY WAS FOUND WHEN COMPARING 100-YEAR
DISCHARGE AT SECTION H-H WITH HYDROLOGY CALCULATIONS
TABLE AND THE WORKSHEET CALCULATIONS. IN THE HYDROLOGY
TABLE THE DISCHARGE WAS INDICATED AS 26.46 CFS AND THE
WORKSHEET CALCULATIONS USE A DISCHARGE OF 24.46 CFS.
PLEASE CLARIFY OR REVISE ACCORDINGLY.
17. PLEASE SUBMIT 100-YEAR STORM CALCULATIONS ALONG THE
ALLEYS (I.E. ALLEY 1 THRU 6) USING THE WORST-CASE X-SECTION
TO ENSURE THE 100-YEAR IS CONTAINED WITHIN THE DEPTH OF THE
ALLEY(S). REFER TO TENTATIVE CONDITION #17.
18. PLEASE PROVIDE A SWALE BETWEEN LOTS 45/46. REFLECT THE
CHANGES ON ALL APPLICABLE SHEETS.
19. PLEASE INCLUDE A DETAIL OF BOOT (HDPE TO CONCRETE)
CONNECTORS ON THE PLANS. REFLECT THE CHANGES ON THE PLANS,
DRAINAGE DESCRIPTION TABLE (I.E. STRUCTURES 4, 9, 12, 13,
17, 19, 23, ETC.), ETC.
IN ADDITION, PLEASE SPECIFY 12" HDPE AS OPPOSED TO 6" FOR
THE MAIN LINE THAT CONNECTS TO THE STORM SEWER STRUCTURES.
20. PLEASE PROVIDE A NOTE ON SHEET C3.7 THAT THE SPLASH
BLOCK(S) ARE TO BE PROVIDED TO THE FRONT OF THE TOWNHOUSES
AT THE END OF THE DOWNSPOUT(S).
21. A NOTE SHOULD BE PROVIDED STATING, "THE DOUBLE WALL HDPE
UNDERGROUND LINES SYSTEM(S) WOULD BE PRIVATELY OWNED AND
MAINTAINED BY THE HOA. THIS NOTE SHALL ALSO BE REFLECTED IN
THE RECORD PLAT AND BE INCORPORATED IN THE COVENANTS AND
RESTRICTION OF THE HOMEOWNERS'S ASSOCIATION."
22. PLEASE REVISE THE TYPICAL DOWNSPOUT DETAIL (SHEET C3.7)
TO REFLECT CLEANOUTS (C.O.) IN LIEU OF DI-1. IN ADDITION,
PROVIDE CLEANOUT DETAIL ON THE PLANS.
FURTHERMORE, PLEASE REMOVE NOTE 1 IN THE DOWNSPOUT DETAIL
(SHEET 3.7).
23. PLEASE EXTEND THE VARIABLE WIDTH DRAINAGE EASEMENT FOR
VDOT MAINTENANCE TO INCLUDE STR. 9.
24. PLEASE CLARIFY THE DASHED LINE THAT CROSSES LOTS 34 THRU
36 AND THE OPEN SPACE ADJACENT TO LOT 34.
25. THESE ARE IN REGARDS TO THE EXISTING AMENITY POND:
A) PLEASE SHOW/LABEL THE LIMITS OF THE NWSE AND THE 100-
YEAR WSE.
B) IF DAM BREACH OCCURS DURING THE 100-YEAR STORM EVENT
OVERTOPPING, WILL THE DAM FAILURE IMPACT THE DOWNSTREAM
LOTS (I.E. 1 /2, ETC.? PLEASE PROVIDE SUPPORT
CALCULATIONS, SHOW/LABEL THE LIMITS OF DAM FAILURE,
SPECIFY MFF(DF) FOR THE LOTS AFFECT, ETC. ON THE PLANS.
C) PER RECENT TELEPHONE CONVERSATION ON 03/16/16 WITH
TOM, ROBERT AND MARIA, IT APPEARS A PORTION OF THE
EMBANKMENT SECTION OF THE POND ADJACENT TO CASSIA LOOP
WOULD BE CUT AND RE-GRADED, REMOVING PART OF THE
EXISTING GROUND MATERIAL. AS RESULT, THE INTEGRITY OF
THE POND MAY BE COMPROMISED AND AN INSPECTION OF THE
PROPER GRADED DAM BY A LICENSED GEOTECHNICAL ENGINEER
ALONG THE AFFECTED AREA MUST BE PROVIDED TO THIS OFFICE
PRIOR TO THE SUBDIVISION PLAT RECORDATION. PLEASE
PROVIDE A NOTE REGARDING THIS CONCERN ON THE PLANS.
D) AS A REMINDER, THE AMENITY POND MUST BE CERTIFIED BY
A LICENSED GEOTECHNICAL ENGINEER PRIOR TO THE STATE
ACCEPTANCE OF THE PROPOSED ROADS FOR WYNWOOD SECTION 13.
26. THESE ARE IN REGARDS TO THE PROFILES:
A) PLEASE BE SURE TO SHOW/LABEL THE 100-YEAR FLOODPLAIN
LIMITS, 100-YEAR BACKWATER LIMITS, RPA LIMITS, WETLANDS,
ETC. ON ALL APPLICABLE PROFILES.
B) PLEASE BE SURE TO SHOW ANY CROSSING (I.E.
PROPOSED/EXISTING STORM SEWER(S), CULVERTS, UTILITIES,
ETC.) AT THE PROPER LOCATION AND ELEVATION IN ALL
PROFILES. THE EXISTING STORM SEWER OUTFALL STR. EX22P
SHOULD BE SHOWING IN THE SANITARY SEWER 16 TO EX-1
PROFILE. REVISE ACCORDINGLY.
C) PLEASE SPECIFY THE BEGINNING/ENDING OF CONSTRUCTION
WITH PERTINENT STATION ON GOSSAMER DRIVE PROFILE, CASSIA
LOOP PROFILE, ETC.
D) BASED ON THE GOSSAMER DRIVE PROFILE (SHEET C4.0), IT
APPEARS STR. 31 MODIFIED DI-7 USCW END TREATMENT TO
CREATE SUBMERGE CONDITIONS AND POND WATER TO THE
UPSTREAM STRUCTURE LOCATED IN THE RIGHT-OF-WAY, WHICH
VDOT WILL NOT ACCEPT.
PLEASE EITHER CONSIDER LOWERING THE TOP OF STR. 31 OR
RAISE THE INVERT (OUT) AT STR. 30 TO APPROXIMATELY
220.79 TO ENSURE THE TOP OF STR. 31 IS BELOW THE INVERT
(OUT) OF STR. 31. AS APPLICABLE, REVISE THE PLANS,
PROFILES AND COMPUTATION SHEETS TO REFLECT THE CHANGES.
27. AS A PREREQUISITE TO SUBDIVISION PLAT RECORDATION:
A) APPROVED BONDING AND RECORDED EASEMENTS WITH DEED
BOOK AND PAGE NUMBER FOR THE SWM/BMP WETPOND MUST BE
PROVIDED.PAGE NUMBER FOR THE SWM/BMP WETPOND MUST BE
B) THE $100/LOT BMP MAINTENANCE FEE MUST BE RECEIVED.
C) PER TENTATIVE CONDITION #12, WHICH STATES, "A COPY OF
THE COVENANTS AND ARTICLES SHALL BE PROVIDED OF
INCORPORATION OF THE HOMEOWNERS' ASSOCIATION SHALL BE
PROVIDED TO THE ENVIRONMENTAL ENGINEERING DEPARTMENT FOR
APPROVAL. THE ENVIRONMENTAL ENGINEERING DEPARTMENT WILL
DETERMINE WHETHER THE SUBDIVISION HAS BEEN PROVIDED WITH
THE INFORMATION TO DEVELOP AND IMPLEMENT A
FERTILIZATION/LAWN CARE PROGRAM TO MINIMIZE PHOSPHOROUS
RUNOFF FROM MAGNOLIA GREEN PER ZONING CONDITION E.11 OF
CASE 89SN0343. THE REQUIREMENTS OF THE PROGRAM SHALL
BECOME A PART OF THE COVENANTS FOR THE PROJECT AFFECTING
ALL PROPERTIES WITHIN THE DEVELOPMENT.
D) PER TENTATIVE CONDITION #15, WHICH STATES, "PRIOR TO
RECORDATION, THE ENVIRONMENTAL ENGINEERING DEPARTMENT
MUST HAVE RECEIVED NOTIFICATION FROM VDOT THAT
IMPROVEMENTS IN ACCORDANCE WITH THE CDOT CURRENTLY
APPROVED PHASING PLAN TO THE STATE ROAD(S) INTO WHICH
THIS PROJECT INTERSECTS AND WHICH, HAVE BEEN AUTHORIZED
BY AN ISSUED LAND USE PERMIT, HAVE BEEN SATISFACTORILY
COMPLETED.
===================== END OF COMMENTS ====================
============================================================
============================================================
REVIEW DEPARTMENT : ENVIRONMENTAL ENGINEERING
REVIEWER/PHONE # : MARIA JENKINS/751-2335
NAME OF PLAN : WYNWOOD SECTION 16
SITE PLAN NO. : 16CP0060
LATEST PLAN DATE : 06/13/16
DEPT. REC'D DATE : 06/27/16
SUBMITTAL NUMBER : 2
REVIEW DATE : 07/20/16
RECOMMENDATION : REVISIONS REQUIRED
TABLE REVISION : NO
PLAT PROCESSING : NO
1. IT IS THE RESPONSIBILITY OF THE APPLICANT TO COMPLY
WITH AND/OR ACQUIRE ALL APPLICABLE FEDERAL AND/OR STATE
PERMITS IN RELATIONSHIP TO ENVIRONMENTAL FEATURES INCLUDING
BUT NOT LIMITED TO WETLANDS, SURFACE WATERS (E.G. VSMP
PERMIT FOR CONSTRUCTION SITES, GROUND WATER AND AIR
QUALITY) FINAL APPROVAL OF THESE PLANS WILL NOT RELIEVE YOU
OF YOUR RESPONSIBILITY. WETLANDS DOCUMENTATION MUST BE
RECEIVED BY THIS DEPARTMENT PRIOR TO ISSUANCE OF THE LAND
DISTURBANCE PERMIT.
2. THIS OFFICE RECOGNIZES THAT THE 10-YEAR PRE/10-YEAR POST
REQUIREMENTS FOR FLOOD PROTECTION MAY BE ADDRESSED BY
DISCHARGING INTO THE 100-YEAR FLOODPLAIN.
=== EROSION CONTROL ===
1. AN ITEMIZED EROSION CONTROL COST ESTIMATE MUST BE
SUBMITED FOR REVIEW AND/OR APPROVAL.
2. AS A PREREQUISITE TO THE ISSUANCE OF A LAND
DISTURBANCE PERMIT:
A) A COPY OF THE AUTOCAD FILE MUST BE SUBMITTED TO
CAROLE CLIBORNE OF THE ENVIRONMENTAL ENGINEERING. THE
AUTOCAD FILE MUST BE SAVED AS A .DWG OR .DXF IN AUTOCAD
VERSION 2009 OR EARLIER AND REFERENCED DIRECTLY TO THE
VIRGINIA STATE PLANE COORDINATE SYSTEM, SOUTH ZONE IN
THE NAD83 DATUM. THE AUTOCAD FILE MAY BE SUBMITTED ON A
CD, DVD, OR VIA EMAIL AND MUST BE CLEARLY LABELED WITH
THE SUBDIVISION NAME AND SECTION, SUBDIVISION PLAN
NUMBER, ENGINEERING FIRM AND CAD FILE PREPARER'S NAME
AND PHONE NUMBER. THE FILE MUST CONTAIN THE FOLLOWING,
EACH CLEARLY LABELED IN SEPARATE LAYERS:
I.EDGES OF ROADS TO INCLUDE CURB AND GUTTER; AND
II. EDGES OF SIDEWALKS;
THE FILE MUST BE APPROVED BY ENVIRONMENTAL ENGINEERING
PRIOR TO ISSUANCE OF THE LAND DISTURBANCE PERMIT.
B) FLAGGING AROUND USACOE JURISDICTIONAL WETLANDS,
BUFFERS, AND SENSITIVE AREAS MUST BE VISIBLE.
C) DOCUMENTATION FROM THE USACOE/DEQ MUST BE RECEIVED
VERIFYING COMPLIANCE TO WETLAND PERMIT REGULATIONS.
D) A PROCESSED VSMP REGISTRATION AND FEE FORM MUST BE
RECEIVED.
E) IF APPLICABLE, A COPY OF VDOT LAND USE PERMIT MUST
BE RECEIVED.
F) AN EROSION CONTROL BOND MUST BE POSTED.
G) AS APPLICABLE, A SWPPP BOOKLET (3 RING BINDER) MUST
BE PROVIDED.
3. THESE ARE IN REGARDS TO THE MS-19:
A) THIS OFFICE WAS NOT ABLE TO LOCATE THE 2-YEAR STORM
CALCULATIONS WITH SCALED X-SECTION PERTINENT TO THE MS-
19 SEC 35 WITHIN THE SUBMITTAL PACKAGE FOR FURTHER
REVIEW AND/OR APPROVAL. PLEASE ADDRESS.
4. WE OFFER, BUT NOT LIMITED TO, THE FOLLOWING COMMENTS:
A) PLEASE PROVIDE A NOTE ON THE EC PHASE I/PHASE II
STATING, "THE AMENITY POND IS CURRENTLY SERVING AS A
SEDIMENT BASIN. IF BY THE TIME STARTING CONSTRUCTION FOR
SECTION 16 THE AMENITY POND HAS BEEN COMPLETELY
STABILIZED, SEDIMENT REMOVED AND CONVERTED TO A
PERMANENT POND, ADDITIONAL EROSION CONTROL MEASURES MAY
BE REQUIRED SUCH AS: TURBIDITY CURTAIN, ETC."
B) AS PREVIOUSLY REQUESTED, PLEASE REVISE THE TEMPORARY
SEDIMENT TRAP DETAIL (SHEET C2.6) TO SPECIFY 1:1 OR
FLATTER TO THE SIDE SLOPE OF THE EXCAVATED WET VOLUME.
C) PLEASE PROVIDE A SMALL EXCAVATED PIT WITH TEMPORARY
GRAVEL STRUCTURE AT THE TOE OF FILL SECTION TO BE
LOCATED ON THE OPEN SPACE AREA NEAR THE RETAINING WALL
IN THE VICINITY OF LOT 32. ADJUST THE SUPER SILT FENCE
TO INCLUDE THIS SMALL EXCAVATED PIT AND REFLECT THE
CHANGES ON THE EC PHASE I/PHASE II.
D) PLEASE REMOVE THE SEDIMENT FOREBAY AND THE PERMANENT
FENCE LOCATED TO SURROUND THE SB1 FROM THE EC PHASE I.
IN ADDITION, PROVIDE SAFETY FENCE TO SURROUND THE SB1.
REFLECT THE CHANGES ON THE EC PHASE I/PHASE II.
5. IF TIMBERING IS REQUIRED ON THE PROJECT, IT SHOULD BE
INCORPORATED INTO THE EROSION CONTROL PLAN / NARRATIVE AND
SHOULD NOT BEGIN UNTIL AFTER THE ISSUANCE OF A LAND
DISTURBANCE PERMIT AND THE INSTALLATION OF THE APPROVED
EROSION CONTROL DEVICES.
==== CBPA =====
1. THESE ARE IN REGARDS TO THE WORKSHEET A CALCULATIONS:
A) IT APPEARS THE SINGLE FAMILY AND TOWNHOUSES WERE NOT
INCLUDED TOGETHER TO CALCULATE THE AVERAGE LOT SIZE IN
STEP 2.
THE AVERAGE LOT SIZE IN STEP 2 SHOULD BE CALCULATED AS
FOLLOWING:
SINGLE FAM. HOME (AREA IN LOTS) + OPEN SPACE + TOWNHOMES
(AREA IN TOWNHOMES)/NUMBER OF LOTS (55 LOTS) =0.28. USE
TABLE 2 MINIMUM ALLOWABLE %IMPERVIOUS, WHICH IS EQUAL TO
28%. REFER TO AN IN-HOUSE CHECK WORKSHEET A
CALCULATIONS.
SUBMIT REVISED WORKSHEET A CALCULATIONS FOR FURTHER
REVIEW AND/OR APPROVAL.
B) PLEASE BE SURE TO INCLUDE THE ROADS TO BE PART OF THE
TOTAL ACREAGE IN STEP 2 AS OPPOSED TO BEING CALCULATED
SEPARATELY. REFER TO AN IN-HOUSE CHECK WORKSHEET A
CALCULATIONS FOR CLARIFICATION AND SUBMIT REVISED
WORKSHEET A CALCULATIONS FOR FURTHER REVIEW AND/OR
APPROVAL.
C) BE SURE THE SIDEWALKS AND ALLEYS FOR THE % IMPERVIOUS
IN STEP 2 ARE CALCULATED SEPARATELY FROM THE AVERAGE LOT
SIZE.
D) AS PREVIOUSLY REQUESTED, REVISE STEP 4 FOR THE ONSITE
DRAINAGE AREAS TO SEPARATE THE AREAS BY THE
TOWNHOUSES/SINGLE FAMILY, OPEN SPACE, RIGHT-OF-WAY AND
SIDEWALK/ALLEY WITH THE PERTINENT % IMPERVIOUS. SINCE
ALLOWABLE PERCENT FOR THE LAND USE COVER IS OUTSIDE THE
RANGE WHEN USE THE MINIMUM ALLOWABLE PERCENT IMPERVIOUS
COVER TABLE 2. REFER TO AN IN-HOUSE CHECK WORKSHEET A
CALCULATIONS.
E) AS PREVIOUSLY REQUESTED, IT APPEARS THERE IS A SMALL
AREA OUTSIDE OF THIS SECTION PERTINENT TO GOSSAMER DRIVE
(I.E. ROAD AND SIDEWALK) THAT WAS CONSIDERED TO BE PART
OF ONSITE DRAINAGE AREAS. IT SHOULD BE SHOWN IN THE
WORKSHEET A CALCULATIONS TO BE OFFSITE DRAINAGE AREAS.
REFER TO IN-HOUSE CHECK WORKSHEET A CALCULATIONS.
2. PLEASE BE SURE THE LABELING OF THE 100' RPA BUFFER AREA
IS ALIGNED WITH THE DIMENSION LINE AS OPPOSED TO BEING
SHOWN ACROSS THE DIMENSION LINE.
IN ADDITION, BE SURE THE WORD "AREA" IS INCLUDED IN THE
LABELING OF THE 100' RPA BUFFER AREA. REVISE ACCORDINGLY.
ADDITIONALLY, PLEASE SHOW THE RPA LIMITS, THE DIMENSION
LINE/100' RPA BUFFER AREA IN DARKER BOLDER LINES. REFLECT
THE CHANGES ON ALL APPLICABLE SHEETS.
3. AS PREVIOUSLY REQUESTED, PLEASE REVISE THE CBPA
CALCULATION SUMMARY TABLE (SHEET CBPA) TO USE THE ENCLOSED
REVISED TABLE. IN ADDITION, THE CBPA CALCULATION SUMMARY
TABLE SHOULD ALSO BE REVISED TO REFLECT THE REVISED DATA
FOR BMP#4 REQUESTED IN THIS REVIEW.
4. PER COMMENT ITEM #1A UNDER CBPA, PLEASE REVISE THE
CBPA/MS-4 TABLE SHEET CBPA) TO REFLECT THE REVISED REQUIRE
REMOVAL.
==== SWM/BMP =====
1. PLEASE BE SURE THE DAM FILL SECTION FROM THE TOE OF THE
EMBANKMENT IS INCLUDED WITHIN THE SWM/BMP EASEMENT AS SHOWN
ON PREVIOUS PLANS (THE NORTHERN SIDE OF THE DAM FILL
SECTION SHOULD BE INCLUDED IN THE SWM/BMP EASEMENT). THE
SWM/BMP EASEMENT FROM THE WESTERN AND NORTHERN SIDE SHOULD
COINCIDE WITH THE 16' SANITARY SEWER AND THE LIMITS OF THE
RIGHT-OF-WAY TO INCLUDE THE FILL SECTION AND THE STORM
SEWER STRUCTURES 2P/14/15P/ETC.
IN ADDITION, REVISE THE FENCE LOCATION TO BE LOCATED AT THE
TOE OF FILL SECTION AND TO INCLUDE THE GATED ACCESS TO
ACCESS THE OUTFALL DI-7 USCW END TREATMENT. THE FENCE IS
CURRENTLY SHOWING NO ACCESS TO THE DI-7 AND THE GATED
ACCESS IS CURRENTLY LOCATED AT THE TOE OF FILL EMBANKMENT.
REVISE ACCORDINGLY.
ADDITIONALLY, THE FENCE SHOULD RUN PARALLEL TO THE NEW
LOCATION OF THE SWM/BMP EASEMENT REQUESTED IN THE PREVIOUS
PARAGRAPH OF COMMENT ITEM #1 UNDER SWM/BMP.
FURTHERMORE, PLEASE REVISE THE LEADER LINE PERTINENT TO THE
LABELING OF "PERMANENT 6' CHAIN LINK FENCE TO SURROUND BMP
POND AS SHOWN" (SHEET C2.7) TO MATCH THE LINE PERTINENT TO
THE FENCE AS OPPOSED TO INDICATING THE EXISTING GROUND.
REFLECT THE CHANGES ON ALL APPLICABLE SHEETS.
2. A SIMILAR SITUATION EXISTS WITH LABELING THE SWM/BMP
EASEMENT. PLEASE REVISE THE LEADER LINE TO BE MATCHING THE
LINE PERTINENT TO THE SWM/BMP EASEMENT ON SHEET C2.7.
REFLECT THE CHANGES ON ALL APPLICABLE SHEETS.
3. PLEASE REVISE THE LABELING OF "50' PERIMETER YARD
SETBACK" (SHEET C3.0) TO BE "50' VEGETATIVE PERIMETER YARD
SETBACK". REFLECT THE CHANGES ON ALL APPLICABLE SHEETS.
4. IT APPEARS THE GRADING BELOW THE NWSE TO BE 2:1 AS
OPPOSED TO 3:1 (SHEET C2.7). PLEASE EITHER REVISE THE
GRADING BELOW THE NWSE TO BE GRADED 3:1 OR ANNOTATE THIS
AREA WITH DIRECTIONAL FLOW ARROW THAT IS A 2:1 SLOPE.
REVISE ACCORDINGLY.
5. AS PREVIOUSLY REQUESTED, PLEASE BE SURE THE MODIFIED
RISER/PRINCIPAL SPILLWAY CROSS-SECTION (SIDE VIEW AND PLAN
VIEW) ARE SHOWN TO SCALE.
6. IT APPEARS THE GRADING PERTINENT TO THE PROPOSED SWM/BMP
RETENTION POND HAS BEEN CHANGED. PLEASE SUBMIT REVISED
2/10/100-YEAR ROUTING CALCULATIONS DEPICTING THE NEW
GRADING FOR FURTHER REVIEW AND DOCUMENTATION.
7. PLEASE PROVIDE A NOTE IN BOLD PRINT ON SHEET 2.7 TO
REFERENCE SHEETS C4.7 AND C4.8 FOR THE SWM/BMP POND
PROFILES.
======= ROAD AND DRAINAGE =======
1. UPON COMPLETION OF A FIELD INSPECTION, ADDITIONAL
COMMENTS MAY ARISE IF INDICATED BY THE EXISTING CONDITIONS.
2. PLEASE REVISE THE LABELING OF 100-YEAR FLOODPLAIN
PERTINENT TO THE FEMA LIMITS TO BE LABELED AS "100-YEAR
FEMA FLOODPLAIN". REFLECT THE CHANGES ON ALL APPLICABLE
SHEETS.
3. PLEASE BE SURE THE ROAD FILL SECTION THAT IS OUTSIDE THE
LIMITS OF THE RIGHT-OF-WAY IS INCLUDED IN A VARIABLE WIDTH
SLOPE & DRAINAGE EASEMENT FOR VDOT MAINTENANCE OR VARIABLE
WIDTH SLOPE ESEMENT FOR VDOT MAINTENANCE (I.E. ON THE LEFT
SIDE OF GOSSAMER DRIVE, AT THE END TO THE CUL-DE-SAC ON
THORNAPPLE COURT, ETC.).
IN ADDITION, ADJUST THE 16' DRAINAGE EASEMENT THAT IS
ENCLOSING STRUCTURES 29/29P TO BE OUTSIDE THIS VARIABLE
WIDTH SLOPE EASEMENT FOR VDOT MAINTENANCE. BE SURE THAT 16'
DRAINAGE EASEMENT IS ENCLOSING STR. 29. BE SURE TO LABEL
THIS EASEMENT ON ALL APPLICABLE SHEETS (I.E. SHEETS C3.0
THRU C3.4, ETC.).
3. THE FILL SECTION AT THE END OF THE TEMPORARY CUL-DE-SAC
ON GOSSAMER DRIVE SHOULD BE INCLUDED IN A VARIABLE
TEMPORARY SLOPE EASEMENT FOR VDOT MAINTENANCE. REFLECT THE
CHANGES ON ALL APPLICABLE SHEETS.
IN ADDITION, REVISE THE EASEMENT THAT IS ENCLOSING
STRUCTURES 31/31P TO BE OUTSIDE THIS TEMPORARY VARIABLE
WIDTH SLOPE EASEMENT FOR VDOT MAINTENANCE AND LABEL THIS
EASEMENT AS "16' TEMPORARY DRAINAGE EASEMENT". REFLECT THE
CHANGES ON ALL APPLICABLE SHEETS.
4. PLEASE SPECIFY THE SIDE SLOPE WITH DIRECTIONAL FLOW
ARROWS ON THE FILL SLOPE LOCATED NEAR THE RETAINING WALL,
AT THE END OF THE ALLEY #3, ETC. REFLECT THE CHANGES ON ALL
APPLICABLE SHEETS.
5. AS PREVIOUSLY REQUESTED, AT LEAST ONE BENCHMARK WITH
ELEVATION THAT REFERENCES TO MEAN SEA LEVEL MUST BE SHOWN
WITHIN THE LIMITS OF THE SUBDIVISION SECTION. PLEASE
ADDRESS.
6. AS PREVIOUSLY REQUESTED, PLEASE SHOW/LABEL THE
APPROXIMATE LOCATION OF AN APPROVABLE DESIGN OF THE FUTURE
CULVERT CROSSING FOR THE EXTENSION OF GOSSAMER DRIVE WITH
PERTINENT INFORMATION ON PROFILE VIEW. INCLUDE 100-YEAR
CULVERT CALCULATIONS TO VERIFY THE 100-YEAR BACKWATER WOULD
NOT ENCROACH INTO LOT 3. PLEASE ADDRESS.
ADDITIONALLY, PLEASE SPECIFY MINIMUM FINISH FLOOR (MFF) ON
LOT 33 TO BE 1' ABOVE THE ROAD SAG OR THE 100-YEAR
BACKWATER ELEVATION (IF THE LIMITS OF THE 100-YEAR BW IS
ENCROACHING THIS LOT), WHICHEVER IS GREATER.
7. AS PREVIOUSLY REQUESTED, PLEASE ESTABLISH THE 100-YEAR
FLOODPLAIN LIMITS IMMEDIATELY DOWNSTREAM OF THE OUTFALL
STRUCTURES 29, 31, 35, ETC. TO COMPLY WITH FLOOD
PROTECTION. SUBMIT SUPPORT CALCULATIONS, SCALED X-SECTIONS
AND SHOW/LABEL THE 100-YEAR FLOODPLAIN SECTIONS-LOCATIONS
WITH ELEVATIONS ON THE PLANS.
8. ALTHOUGH NOT PREVIOUSLY REQUESTED, PLEASE SHOW/LABEL THE
100-YEAR SECTIONS-LOCATIONS WITH ELEVATIONS ALONG THE
NATURAL DRAINAGEWAY LOCATED ON THE EASTERN SIDE OF ALLEY
#3, ON THE SOUTHERN SIDE ON THIS SECTION, ETC. ON SHEETS
C3.4 AND C3.5.
9. THESE ARE IN REGARDS TO THE FLOODPLAIN AREAS (SHEET
C5.3):
A) BASED ON THE REVISED 100-YEAR CALCULATIONS AT X-
SECTION H, IT APPEARS THE 100-YEAR WSE IS NOW 220.88 AS
OPPOSED TO 220.85. PLEASE REVISE ACCORDINGLY ON THE PLAN
VIEW.
10. AS PREVIOUSLY REQUESTED, PLEASE SUBMIT 100-YEAR STORM
CALCULATIONS ALONG THE ALLEYS (I.E. ALLEY 1 THRU 6) USING
THE WORST-CASE X-SECTION TO ENSURE THE 100-YEAR IS CONTAINED
WITHIN THE DEPTH OF THE ALLEY(S). REFER TO TENTATIVE
CONDITION #17.
11. PLEASE SHOW/LABEL THE 35' BUILDING OFF THE WETLANDS ON
THE SOUTHERN SIDE ON LOT 33. REFLECT THE CHANGES ON ALL
APPLICABLE SHEETS.
12. THESE ARE IN REGARDS TO THE EXISTING AMENITY POND:
A) BASED ON AN IN-HOUSE CHECK, IT APPEARS THE AREAS USED
TO CALCULATE THE STAGE-STORAGE VOLUME FROM 253.00 THRU
259.00 CONTOUR-ELEVATION (I.E. 18,000/20,400/22,400/24,
160/26,400/29,380/32 SQFT) TO BE GREATER THAN THE AREAS
USED IN THE ANALYSIS OF APPROXIMATELY 8,707/10,560/12,
585/14,759/17,097/19,588/22,238 SQFT. PLEASE CLARIFY OR
REVISE ACCORDINGLY.
B) PER THE PREVIOUS COMMENT ITEM A, PLEASE SUBMIT
REVISED ANALYSIS USING GREATER DISCHARGE FOR X-SECTIONS
1 AND 2. IN ADDITION, REVISE ALL APPLICABLE SHEETS TO
REFLECT THE CHANGES.
IF DAM BREACH OCCURS DURING THE 100-YEAR STORM EVENT
OVERTOPPING, WILL THE DAM FAILURE IMPACT THE DOWNSTREAM
LOTS (I.E. 1 /2, ETC.? PLEASE PROVIDE SUPPORT
CALCULATIONS, SHOW/LABEL THE LIMITS OF DAM FAILURE,
SPECIFY MFF(DF) FOR THE LOTS AFFECT, ETC. ON THE PLANS.
C) THIS OFFICE WILL ACCEPT LETTER SEALED BY A LICENSE
PROFESSIONAL ENGINEER CERTIFYING THE ANALYSIS OF THE DAM
FAILURE DURING THE 100-YEAR STORM EVENT.
D) PLEASE PROVIDE FILL GRADING TO ELIMINATE THE SMALL
DEPRESSION FORM WITHIN THE DAM SECTION OF THE EXISTING
AMENITY POND IN THE PROXIMITY OF STATION 11+00 ON CASSIA
LOOP. SHOW PROPOSED GRADING AND PROVIDE A NOTE STATING,
"ALL FILL IN THE DAM SECTION SHALL BE PLACED IN 6" LIFTS
AND COMPACTED TO 95% STANDARD PROCTOR DENSITY, ASSHTO -
99 (ASTM D698).
13. PLEASE PROVIDE A NOTE IN BOLD PRINT ON THE COVER SHEET
(SHEET C1.0) STATING, "THE AMENITY POND AND SWM/BMP WETPOND
MUST BE CERTIFIED BY A LICENSED GEOTECHNICAL ENGINEER PRIOR
TO THE STATE ACCEPTANCE OF THE PROPOSED ROADS FOR THIS
SECTION 16."
14. PLEASE REVISE THE TYPICAL DOWNSPOUT PLAN DETAIL (SHEET
C3.7) TO INDICATE THE LINE THAT CONNECTS THE DOWNSPOUT TO
THE CLEANOUT STR. TO BE 4" HDPE DOUBLE WALL AS OPPOSED TO
12".
IN ADDITION, AT THE SAME DETAIL INDICATE THE PIPE THAT IS
SHOWING AT THE CLEANOUT STR. TO BE 12" HDPE DOUBLE WALL.
15. THESE ARE IN REGARDS TO THE PROFILES:
A) PLEASE BE SURE TO SHOW/LABEL THE 100-YEAR FLOODPLAIN
LIMITS, 100-YEAR BACKWATER LIMITS, ETC. ON ALL
APPLICABLE PROFILES (I.E. STORM 21 TO 15 PROFILE, ETC.).
16. AS A PREREQUISITE TO SUBDIVISION PLAT RECORDATION:
A) APPROVED BONDING AND RECORDED EASEMENTS WITH DEED
BOOK AND PAGE NUMBER FOR THE SWM/BMP WETPOND MUST BE
PROVIDED.
B) THE $100/LOT BMP MAINTENANCE FEE MUST BE RECEIVED.
C) PER TENTATIVE CONDITION #12, WHICH STATES, "A COPY OF
THE COVENANTS AND ARTICLES SHALL BE PROVIDED OF
INCORPORATION OF THE HOMEOWNERS' ASSOCIATION SHALL BE
PROVIDED TO THE ENVIRONMENTAL ENGINEERING DEPARTMENT FOR
APPROVAL. THE ENVIRONMENTAL ENGINEERING DEPARTMENT WILL
DETERMINE WHETHER THE SUBDIVISION HAS BEEN PROVIDED WITH
THE INFORMATION TO DEVELOP AND IMPLEMENT A
FERTILIZATION/LAWN CARE PROGRAM TO MINIMIZE PHOSPHOROUS
RUNOFF FROM MAGNOLIA GREEN PER ZONING CONDITION E.11 OF
CASE 89SN0343. THE REQUIREMENTS OF THE PROGRAM SHALL
BECOME A PART OF THE COVENANTS FOR THE PROJECT AFFECTING
ALL PROPERTIES WITHIN THE DEVELOPMENT.
D) PER TENTATIVE CONDITION #15, WHICH STATES, "PRIOR TO
RECORDATION, THE ENVIRONMENTAL ENGINEERING DEPARTMENT
MUST HAVE RECEIVED NOTIFICATION FORM VDOT THAT
IMPROVEMENTS IN ACCORDANCE WITH THE CDOT CURRENTLY
APPROVED PHASING PLAN TO THE STATE ROAD(S) INTO WHICH
THIS PROJECT INTERSECTS AND WHICH, HAVE BEEN AUTHORIZED
BY AN ISSUED LAND USE PERMIT, HAVE BEEN SATISFACTORILY
COMPLETED.
===================== END OF COMMENTS ====================
============================================================
============================================================
.
REVIEW DEPARTMENT : ENVIRONMENTAL ENGINEERING
REVIEWER/PHONE # : MARIA JENKINS/751-2335
NAME OF PLAN : WYNWOOD SECTION 16
SITE PLAN NO. : 16CP0060
LATEST PLAN DATE : 06/01/17
DEPT. REC'D DATE : 06/08/17
SUBMITTAL NUMBER : 3
REVIEW DATE : 06/23/17
RECOMMENDATION : REVISIONS REQUIRED
TABLE REVISION : NO
PLAT PROCESSING : NO
.
1. IT IS THE RESPONSIBILITY OF THE APPLICANT TO COMPLY
WITH AND/OR ACQUIRE ALL APPLICABLE FEDERAL AND/OR STATE
PERMITS IN RELATIONSHIP TO ENVIRONMENTAL FEATURES INCLUDING
BUT NOT LIMITED TO WETLANDS, SURFACE WATERS (E.G. VSMP
PERMIT FOR CONSTRUCTION SITES, GROUND WATER AND AIR
QUALITY) FINAL APPROVAL OF THESE PLANS WILL NOT RELIEVE YOU
OF YOUR RESPONSIBILITY.
.
2. THIS OFFICE RECOGNIZES THAT THE 10-YEAR PRE/10-YEAR POST
REQUIREMENTS FOR FLOOD PROTECTION MAY BE ADDRESSED BY
DISCHARGING INTO THE 100-YEAR FLOODPLAIN.
.
=== EROSION CONTROL ===
.
1. AN ITEMIZED EROSION CONTROL COST ESTIMATE MUST BE
SUBMITED FOR REVIEW AND/OR APPROVAL.
.
2. AS A PREREQUISITE TO THE ISSUANCE OF A LAND
DISTURBANCE PERMIT:
.
A) A COPY OF THE AUTOCAD FILE MUST BE SUBMITTED TO
CAROLE CLIBORNE OF THE ENVIRONMENTAL ENGINEERING. THE
AUTOCAD FILE MUST BE SAVED AS A .DWG OR .DXF IN AUTOCAD
VERSION 2009 OR EARLIER AND REFERENCED DIRECTLY TO THE
VIRGINIA STATE PLANE COORDINATE SYSTEM, SOUTH ZONE IN
THE NAD83 DATUM. THE AUTOCAD FILE MAY BE SUBMITTED ON A
CD, DVD, OR VIA EMAIL AND MUST BE CLEARLY LABELED WITH
THE SUBDIVISION NAME AND SECTION, SUBDIVISION PLAN
NUMBER, ENGINEERING FIRM AND CAD FILE PREPARER'S NAME
AND PHONE NUMBER. THE FILE MUST CONTAIN THE FOLLOWING,
EACH CLEARLY LABELED IN SEPARATE LAYERS:
.
I.EDGES OF ROADS TO INCLUDE CURB AND GUTTER; AND
II. EDGES OF SIDEWALKS;
.
THE FILE MUST BE APPROVED BY ENVIRONMENTAL ENGINEERING
PRIOR TO ISSUANCE OF THE LAND DISTURBANCE PERMIT.
.
B) FLAGGING AROUND USACOE JURISDICTIONAL WETLANDS,
BUFFERS, AND SENSITIVE AREAS MUST BE VISIBLE.
.
C) DOCUMENTATION FROM THE USACOE/DEQ MUST BE RECEIVED
VERIFYING COMPLIANCE TO WETLAND PERMIT REGULATIONS.
.
D) A PROCESSED VSMP REGISTRATION AND FEE FORM MUST BE
RECEIVED.
.
E) IF APPLICABLE, A COPY OF VDOT LAND USE PERMIT MUST
BE RECEIVED.
.
F) AN EROSION CONTROL BOND MUST BE POSTED.
.
G) AS APPLICABLE, A SWPPP BOOKLET (3 RING BINDER) MUST
BE PROVIDED.
.
3. THESE ARE IN REGARDS TO THE MS-19:
.
A) AS PREVIOUSLY REQUESTED, THIS OFFICE WAS NOT ABLE TO
LOCATE THE 2-YEAR STORM CALCULATIONS WITH SCALED X-
SECTION PERTINENT TO THE MS-19 SEC 35 WITHIN THE
SUBMITTAL PACKAGE FOR FURTHER REVIEW AND/OR APPROVAL.
PLEASE ADDRESS.
.
4. WE OFFER, BUT NOT LIMITED TO, THE FOLLOWING COMMENTS:
.
A) PLEASE BE SURE TO SHOW THE SMALL EXCAVATED PIT
LOCATED DOWNSTREAM OF THE RETAINING WALL ON THE EC PHASE I.
.
5. IF TIMBERING IS REQUIRED ON THE PROJECT, IT SHOULD BE
INCORPORATED INTO THE EROSION CONTROL PLAN / NARRATIVE AND
SHOULD NOT BEGIN UNTIL AFTER THE ISSUANCE OF A LAND
DISTURBANCE PERMIT AND THE INSTALLATION OF THE APPROVED
EROSION CONTROL DEVICES.
.
==== CBPA =====
.
1. THESE ARE IN REGARDS TO THE WORKSHEET A CALCULATIONS:
.
A) BASED ON STEP 4, IT APPEARS THE TOTAL DRAINAGE AREAS
TO THE POND TO BE 7.58 ACRES AS OPPOSED TO 7.30 ACRES.
PLEASE CLARIFY OR REVISE ACCORDINGLY.
.
IN ADDITION, REVISE THE POLLUTANT REMOVAL TO BE BASED ON
THE 7.58 ACRES AND SUBMIT REVISED WORKSHEET CALCULATIONS
A FOR FURTHER REVIEW AND APPROVAL.
.
IF THE TOTAL DRAINAGE AREAS ARE GOING TO BE 7.58 ACRES
BE SURE TO REFLECT THE CHANGES FOR WATER QUALITY
CALCULATIONS ON SHEETS C2.7, C5.1, SHEET CBPA, ETC.
.
2. ALTHOUGH CORRECTIONS WERE MADE REGARDING TO INCLUDE THE
WORDING "AREA" TO LABEL THE RPA BUFFER AS "100' RPA BUFFER
AREA". HOWEVER, ON SHEETS C2.2, C3.2, ETC. THE LABELING IS
STILL SHOWING AS "100' RPA BUFFER" NEAR SWM/BMP WETPOND
INSTEAD OF "100' RPA BUFFER AREA". REVISE ACCORDINGLY.
.
3. AS PREVIOUSLY REQUESTED, PLEASE REVISE THE CBPA
CALCULATION SUMMARY TABLE (SHEET CBPA) TO USE THE ENCLOSED
REVISED TABLE.
.
4. BASED ON THE CBPA CALCULATION SUMMARY THE IMPERVIOUS
ACREAGE FOR SECTION 16 WAS CHANGED TO 5.5 ACRES. BE SURE
THIS ACREAGE OF 5.5 ACRES IS REFLECTED FOR CALCULATING THE
WATER QUALITY (SHEET C2.7). REVISE ACCORDINGLY.
.
5. PLEASE LABEL FOXFIELD SECTION 5 AS "FUTURE FOXFIELD
SECTION 5. REFLECT THE CHANGES ON SHEET CBPA.
.
==== SWM/BMP =====
.
1. ALTHOUGH, THE SWM/BMP EASEMENT HAS BEEN CORRECTED,
HOWEVER, IT APPEARS THAT SWM/BMP EASEMENT IS SHOWING TO
ENCROACH A SMALL PORTION OF THE WETLANDS. PLEASE REVISE THE
SWM/BMP EASEMENT AND THE FENCE TO SHOW EITHER ALONG THE
LIMITS OF THE WETLANDS OR OUTSIDE THE WETLANDS. BE SURE TO
INCLUDE THE DAM FILL SECTION. REFLECT THE CHANGES ON ALL
APPLICABLE SHEETS.
.
IN ADDITION, PLEASE BE SURE THE SWM/BMP EASEMENT ENDS AT
THE RIGHT-OF-WAY LIMITS IN THE PROXIMITY OF STATIONS 17+35
AND 20+00 ON GOSSAMER DRIVE. REFLECT THE CHANGES ON ALL
APPLICABLE SHEETS.
.
2. PLEASE EXTEND THE CHAIN LINK FENCE TO RUN PARALLEL TO
THE LIMITS OF THE RIGHT-OF-WAY AND CONTINUE THIS FENCE
UNTIL IT REACHES THE REMOVABLE BOLLARDS. REFLECT THE
CHANGES ON ALL APPLICABLE SHEETS.
.
3. AS PREVIOUSLY REQUESTED, PLEASE LABEL THE SLOPE BELOW
NWSE AS 2:1 WITH DIRECTIONAL FLOW ARROW. REFLECT THE
CHANGES ON ALL APPLICABLE SHEETS.
.
4. AS A REMINDER, BE SURE TO SHOW ALL PROPOSED STRUCTURES
THAT ARE NOT STANDARD OR MODIFICATION OF THE STANDARD TO
SCALE FOR FUTURE PROJECTS OR FUTURE SECTIONS OF WYNWOOD.
.
======= ROAD AND DRAINAGE =======
.
1. UPON COMPLETION OF A FIELD INSPECTION, ADDITIONAL
COMMENTS MAY ARISE IF INDICATED BY THE EXISTING CONDITIONS.
.
2. PLEASE SPECIFY THE SIDE SLOPE WITH DIRECTIONAL FLOW
ARROWS ON THE FILL SLOPE LOCATED NEAR THE RETAINING WALL,
AT THE END OF THE ALLEY #5, ETC. REFLECT THE CHANGES ON ALL
APPLICABLE SHEETS.
.
3. PLEASE BE SURE TO SHOW/LABEL THE APPROXIMATE LOCATION OF
THE FUTURE 30" RCP CULVERT WITH PERTINENT INFORMATION FOR
THE FUTURE EXTENSION OF GOSSAMER DRIVE ON THE PLANS AND
PROFILES.
.
IN ADDITION, SHOW/LABEL THE LIMITS OF THE 100-YEAR
BACKWATER LIMITS AND ELEVATION OF 221.70 PERTINENT TO THIS
FUTURE CULVERT ON THE PLAN VIEWS.
.
THE 100-YEAR CALCULATIONS FOR THIS FUTURE CULVERT SUBMITTED
BY EMAIL ON 03/01/17 HAVE BEEN FOUND TO BE SATISFACTORY.
.
4. REVISE THE MINIMUM FINISH FLOOR ON LOT 33 TO BE
MFF(SAG)=227.00 AS OPPOSED TO 243.50. REFLECT THE CHANGES
ON ALL APPLICABLE SHEETS.
.
5. PLEASE SHOW/LABEL THE 100-YEAR SECTIONS-LOCATIONS WITH
ELEVATIONS ALONG THE NATURAL DRAINAGEWAY LOCATED ON THE
EASTERN AND SOUTHERN SIDE OF THIS SECTION, ETC. ON SHEETS
C3.0 AND C3.1.
.
6.IT WAS DISCUSSED FROM A PREVIOUS TELEPHONE CONVERSION
WITH TOM THAT THE OVERALL GRADING ON ALLEY #6 DOES NOT
REFLECT THE ROAD INVERTED CROWN. IN THIS CASE, PLEASE
SPECIFY 4" ASPHALT CURB ALONG THE EDGE OF THE PAVEMENT ON
THE WESTERN SIDE OF ALLEY #6.
.
STARTING FROM THE RETURN AT THE INTERSECTION ALLEY #2 AND
CONTINUE THIS ASPHALT CURB UNTIL IT REACHES THE RETURN NEAR
THE INTERSECTION ON GOSSAMER ROAD. INCLUDE THE NECESSARY
NOTES AND THE ENCLOSED DETAIL OF THE 4" ASPHALT CURB ON THE
PLANS. REFLECT THE CHANGES ON ALL APPLICABLE SHEETS.
.
IN ADDITION, RELOCATE STR. 32 TO BE CLOSER TO THE ASPHALT
CURB TO INTERCEPT THE FLOW. A FURTHER DISCUSSION MAY BE
HELPFUL. REVISE THE PLANS, PROFILES, AND COMPUTATION SHEETS
TO REFLECT THE CHANGES.
.
7. THESE ARE IN REGARDS TO THE EXISTING AMENITY POND:
.
A) PLEASE SHOW/LABEL THE 100-YEAR DAM FAILURE LIMITS AND
THE SECTIONS-LOCATIONS WITH ELEVATIONS OF THE DAM
FAILURE ON THE ROAD PLANS (SHEETS 3.0, 3.1, ETC.).
.
IN ADDITION, LABEL THE LIMITS OF THE DAM FAILURE AS "DAM
FAILURE LIMITS". REFLECT THE CHANGES ON ALL APPLICABLE
SHEETS.
.
B) THIS OFFICE WILL ACCEPT A LETTER SEALED BY A LICENSED
PROFESSIONAL ENGINEER CERTIFYING THIS ANALYSIS OF THE
DAM FAILURE DURING THE 100-YEAR STORM EVENT. PLEASE
ADDRESS
.
8. AS A PREREQUISITE TO SUBDIVISION PLAT RECORDATION:
.
A) APPROVED BONDING AND RECORDED EASEMENTS WITH DEED
BOOK AND PAGE NUMBER FOR THE SWM/BMP WETPOND MUST BE
PROVIDED.
.
B) THE $100/LOT BMP MAINTENANCE FEE MUST BE RECEIVED.
.
C) PER TENTATIVE CONDITION #12, WHICH STATES, "A COPY OF
THE COVENANTS AND ARTICLES SHALL BE PROVIDED OF
INCORPORATION OF THE HOMEOWNERS' ASSOCIATION SHALL BE
PROVIDED TO THE ENVIRONMENTAL ENGINEERING DEPARTMENT FOR
APPROVAL. THE ENVIRONMENTAL ENGINEERING DEPARTMENT WILL
DETERMINE WHETHER THE SUBDIVISION HAS BEEN PROVIDED WITH
THE INFORMATION TO DEVELOP AND IMPLEMENT A
FERTILIZATION/LAWN CARE PROGRAM TO MINIMIZE PHOSPHOROUS
RUNOFF FROM MAGNOLIA GREEN PER ZONING CONDITION E.11 OF
CASE 89SN0343. THE REQUIREMENTS OF THE PROGRAM SHALL
BECOME A PART OF THE COVENANTS FOR THE PROJECT AFFECTING
ALL PROPERTIES WITHIN THE DEVELOPMENT.
.
D) PER TENTATIVE CONDITION #15, WHICH STATES, "PRIOR TO
RECORDATION, THE ENVIRONMENTAL ENGINEERING DEPARTMENT
MUST HAVE RECEIVED NOTIFICATION FORM VDOT THAT
IMPROVEMENTS IN ACCORDANCE WITH THE CDOT CURRENTLY
APPROVED PHASING PLAN TO THE STATE ROAD(S) INTO WHICH
THIS PROJECT INTERSECTS AND WHICH, HAVE BEEN AUTHORIZED
BY AN ISSUED LAND USE PERMIT, HAVE BEEN SATISFACTORILY
COMPLETED.
.
===================== END OF COMMENTS ====================
.
============================================================
============================================================
.
REVIEW DEPARTMENT : ENVIRONMENTAL ENGINEERING
REVIEWER/PHONE # : MARIA JENKINS/751-2335
NAME OF PLAN : WYNWOOD SECTION 16
SITE PLAN NO. : 16CP0060
LATEST PLAN DATE : 09/19/17
DEPT. REC'D DATE : 09/21/17
SUBMITTAL NUMBER : 4
REVIEW DATE : 10/02/17
RECOMMENDATION : APPROVED
TABLE REVISION : YES
PLAT PROCESSING : NO
.
1. IT IS THE RESPONSIBILITY OF THE APPLICANT TO COMPLY
WITH AND/OR ACQUIRE ALL APPLICABLE FEDERAL AND/OR STATE
PERMITS IN RELATIONSHIP TO ENVIRONMENTAL FEATURES INCLUDING
BUT NOT LIMITED TO WETLANDS, SURFACE WATERS (E.G. VSMP
PERMIT FOR CONSTRUCTION SITES, GROUND WATER AND AIR
QUALITY) FINAL APPROVAL OF THESE PLANS WILL NOT RELIEVE YOU
OF YOUR RESPONSIBILITY.
.
2. THIS OFFICE RECOGNIZES THAT THE 10-YEAR PRE/10-YEAR POST
REQUIREMENTS FOR FLOOD PROTECTION MAY BE ADDRESSED BY
DISCHARGING INTO THE 100-YEAR FLOODPLAIN.
.
=== EROSION CONTROL ===
.
1. AS A PREREQUISITE TO THE ISSUANCE OF A LAND
DISTURBANCE PERMIT:
.
A) A COPY OF THE AUTOCAD FILE MUST BE SUBMITTED TO
CAROLE CLIBORNE OF THE ENVIRONMENTAL ENGINEERING. THE
AUTOCAD FILE MUST BE SAVED AS A .DWG OR .DXF IN AUTOCAD
VERSION 2009 OR EARLIER AND REFERENCED DIRECTLY TO THE
VIRGINIA STATE PLANE COORDINATE SYSTEM, SOUTH ZONE IN
THE NAD83 DATUM. THE AUTOCAD FILE MAY BE SUBMITTED ON A
CD, DVD, OR VIA EMAIL AND MUST BE CLEARLY LABELED WITH
THE SUBDIVISION NAME AND SECTION, SUBDIVISION PLAN
NUMBER, ENGINEERING FIRM AND CAD FILE PREPARER'S NAME
AND PHONE NUMBER. THE FILE MUST CONTAIN THE FOLLOWING,
EACH CLEARLY LABELED IN SEPARATE LAYERS:
.
I.EDGES OF ROADS TO INCLUDE CURB AND GUTTER; AND
.
II. EDGES OF SIDEWALKS;
.
III. ALL STORM SEWER & INLETS;
.
THE FILE MUST BE APPROVED BY ENVIRONMENTAL ENGINEERING
PRIOR TO ISSUANCE OF THE LAND DISTURBANCE PERMIT.
.
B) FLAGGING AROUND USACOE JURISDICTIONAL WETLANDS,
BUFFERS, AND SENSITIVE AREAS MUST BE VISIBLE.
.
C) SAFETY FENCE AND/OR SUPER SILT FENCE WITH OPTIC
ORANGE FABRIC MUST BE IN PLACED ALONG THE RPA LIMITS AS
SHOWN ON THE CONSTRUCTION PLANS.
.
D) DOCUMENTATION FROM THE USACOE/DEQ MUST BE RECEIVED
VERIFYING COMPLIANCE TO WETLAND PERMIT REGULATIONS.
.
E) A PROCESSED VSMP REGISTRATION AND FEE FORM MUST BE
RECEIVED.
.
F) IF APPLICABLE, A COPY OF VDOT LAND USE PERMIT MUST
BE RECEIVED.
.
G) AN EROSION CONTROL BOND IN THE AMOUNT OF $62,530.00
MUST BE POSTED.
.
H) AS APPLICABLE, A SWPPP BOOKLET (3 RING BINDER) MUST
BE PROVIDED.
.
I) THE RISER AND BARREL PIPE ASSOCIATED WITH THE
SEDIMENT BASIN MUST BE ON-SITE.
.
2. IF TIMBERING IS REQUIRED ON THE PROJECT, IT SHOULD BE
INCORPORATED INTO THE EROSION CONTROL PLAN / NARRATIVE AND
SHOULD NOT BEGIN UNTIL AFTER THE ISSUANCE OF A LAND
DISTURBANCE PERMIT AND THE INSTALLATION OF THE APPROVED
EROSION CONTROL DEVICES.
.
======= ROAD AND DRAINAGE =======
.
1. UPON COMPLETION OF A FIELD INSPECTION, ADDITIONAL
COMMENTS MAY ARISE IF INDICATED BY THE EXISTING CONDITIONS.
.
2. THESE ARE IN REGARDS TO THE EXISTING AMENITY POND:
.
A) PLEASE SEE THE ENCLOSED DRAFT LETTER CERTIFYING THE
DAM FAILURE ANALYSIS FOR YOU TO USE AND BE SUBMITTED TO
THIS OFFICE FOR APPROVAL AND DOCUMENTATION.
.
4. AS A REMINDER, BE SURE TO SHOW ALL PROPOSED STRUCTURES
THAT ARE NOT STANDARD OR MODIFICATION OF THE STANDARD TO
SCALE FOR FUTURE PROJECTS OR FUTURE SECTIONS OF WYNWOOD.
.
5. AS A PREREQUISITE TO SUBDIVISION PLAT RECORDATION:
.
A) APPROVED BONDING AND RECORDED EASEMENTS WITH DEED
BOOK AND PAGE NUMBER FOR THE SWM/BMP WETPOND MUST BE
PROVIDED.
.
B) THE $100/LOT BMP MAINTENANCE FEE MUST BE RECEIVED.
.
C) PER TENTATIVE CONDITION #12, WHICH STATES, "A COPY OF
THE COVENANTS AND ARTICLES SHALL BE PROVIDED OF
INCORPORATION OF THE HOMEOWNERS' ASSOCIATION SHALL BE
PROVIDED TO THE ENVIRONMENTAL ENGINEERING DEPARTMENT FOR
APPROVAL. THE ENVIRONMENTAL ENGINEERING DEPARTMENT WILL
DETERMINE WHETHER THE SUBDIVISION HAS BEEN PROVIDED WITH
THE INFORMATION TO DEVELOP AND IMPLEMENT A
FERTILIZATION/LAWN CARE PROGRAM TO MINIMIZE PHOSPHOROUS
RUNOFF FROM MAGNOLIA GREEN PER ZONING CONDITION E.11 OF
CASE 89SN0343. THE REQUIREMENTS OF THE PROGRAM SHALL
BECOME A PART OF THE COVENANTS FOR THE PROJECT AFFECTING
ALL PROPERTIES WITHIN THE DEVELOPMENT.
.
D) PER TENTATIVE CONDITION #15, WHICH STATES, "PRIOR TO
RECORDATION, THE ENVIRONMENTAL ENGINEERING DEPARTMENT
MUST HAVE RECEIVED NOTIFICATION FORM VDOT THAT
IMPROVEMENTS IN ACCORDANCE WITH THE CDOT CURRENTLY
APPROVED PHASING PLAN TO THE STATE ROAD(S) INTO WHICH
THIS PROJECT INTERSECTS AND WHICH, HAVE BEEN AUTHORIZED
BY AN ISSUED LAND USE PERMIT, HAVE BEEN SATISFACTORILY
COMPLETED.
.
===================== END OF COMMENTS ====================

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