65% plan submittal semi-final design fort greble ... · semi-final design fort greble recreation...
TRANSCRIPT
C000COVER SHEET
Designed:Drawn:
Checked:
Date:Revisions:
SEAL
DPR II - 4 PARKSSTORMWATERIMPROVEMENTS
FORT GREBLERECREATION CENTERMARTIN LUTHER KING JR. AVE. SW& ELMIRA ST. SWWASHINGTON, DC
65% PLAN SUBMITTALSEMI-FINAL DESIGN
FORT GREBLERECREATION CENTERDPR II - 4 PARKS STORMWATER
IMPROVEMENTSMARTIN LUTHER KING JR. AVE.,SW
& ELMIRA ST., SW DISTRICT OF COLUMBIA
VICINITY MAPSCALE: NONE
PROJECT DESCRIPTIONTHE PURPOSE OF THIS DOEE-FUNDED PROJECT IS TO CONSTRUCT STORMWATER IMPROVEMENTS
TO REDUCE RUNOFF AND NON-POINT POLLUTION. PROPOSED IMPROVEMENTS INCLUDEINSTALLATION OF TWO VEGETATIVE STORMWATER SWALES, A COMPOST-AMENDED GRASS
CHANNEL AND ASSOCIATED SITE IMPROVEMENTS ALONG CHESAPEAKE STREET, SW.TOTAL DISTURBED AREA IS 12,575 SQUARE FEET.
NOVEMBER 25, 2019
NRD PROJECT #193003
PROJECT CONTACTS
OWNER/APPLICANT: DISTRICT OF COLUMBIADEPARTMENT OF PARKS AND RECREATION
ADDRESS: 2000 14TH ST NWWASHINGTON, DC 20009
CONTACT: PETER NOHRDENEMAIL: PETER [email protected]
DOEE PROJECT MANAGER: CECILIA LANEENVIRONMENTAL PROTECTION SPECIALIST
ADDRESS: 1200 FIRST STREET NE, 5TH FLOORWASHINGTON, DC 20002
TELEPHONE: (202) 535-2247 - DESK(202) 734-9527 - CELL
EMAIL: [email protected]
ENGINEER/CONTRACTOR: NATURAL RESOURCES DESIGN, INC.CONTRACTOR LIC. NO: 410517000208CONTACT: CHRIS SONNE, PEADDRESS: 1009 SHEPHERD STREET NE
WASHINGTON, DC 20017TELEPHONE: (434) 996-1752EMAIL: [email protected]
SURVEYOR: SUSTAINABLE SURVEYS, LLCCONTACT: TIM GREENWOOD, LSADDRESS: P.O. BOX 15450
WASHINGTON, DC 20003TELEPHONE: (571) 339-9201EMAIL: [email protected]
SITE SUMMARY
SITE ADDRESS: INTERSECTION OFMARTIN LUTHER KING JR. AVE., SW& ELMIRA ST., SWWASHINGTON, DC
SSL #: PAR 02520035ZONE: RA-1LOT SIZE: 0.9100 ACRESDISTURBED AREA: 12,575
CIVIL SHEET LIST
SheetNumber Sheet TitleC000 COVER SHEETC001 ABBREVIATIONS AND STANDARD NOTESC100 EXISTING CONDITIONSC200 DEMOLITION & PHASE 1 EROSION CONTROL PLANSC210 PHASE 2 EROSION CONTROL & GRADING PLANSC220 EROSION CONTROL NOTESC230 EROSION CONTROL DETAILSC300 DRAINAGE AREA MAPSC310 STORMWATER MANAGEMENT PLANC320 STORMWATER MANAGEMENT NOTES & DETAILSC330 STORMWATER MANAGEMENT SPECIFICATIONSC340 STORMWATER MANAGEMENT CALCULATIONSL100 LANDSCAPING PLANL150 LANDSCAPING PLAN - DRY SWALESL200 LANDSCAPING NOTES AND DETAILS
DC PERMIT REVIEW AGENCIESDISTRICT DEPARTMENT OF CONSUMER AND REGULATORYAFFAIRS (DCRA)
1100 4TH STREET, SW
WASHINGTON, DC 20024
(202) 442-4400
DEPARTMENT OF ENERGY AND THE ENVIRONMENT
1200 FIRST STREET, NW
WASHINGTON, DC 20002
(202) 535-2600
C. SONNEC. SONNEL. WHEELER
SEPTEMBER 4, 2019
C001
STANDARD NOTES &ABBREVIATIONS
C. SONNEC. SONNEL. WHEELER
NOVEMBER 25, 2019
GENERAL SITE CONSTRUCTION NOTES1. NATURAL RESOURCES DESIGN IS NOT RESPONSIBLE FOR CONSTRUCTION SAFETY, ACCIDENTS, OR SUPERVISION;
NATURAL RESOURCES DESIGN IS NOT RESPONSIBLE FOR ANY CONSTRUCTION DAMAGE OR INJURY TO ANY PERSON,VEHICLE, EQUIPMENT, OR PROPERTY ON OR NEAR THE CONSTRUCTION SITE.
2. NATURAL RESOURCES DESIGN IS NOT RESPONSIBLE FOR CONSTRUCTION SITE SECURITY. THE CONTRACTOR SHALLCOORDINATE ALL TEMPORARY SITE SECURITY WITH THE OWNER AS REQUIRED AND APPROPRIATE.
3. BEFORE COMMENCING CONSTRUCTION, CALL 'MISS UTILITY' TO FIELD MARK UNDERGROUND UTILITIES. FOLLOWMISS UTILITY REQUIREMENTS.
4. THE EXTENT OF EXISTING STRUCTURES INCLUDING UNDERGROUND FEATURES MAY NOT BE DEPICTED ON THEPLANS.
5. THE CONTRACTOR MAY MAKE FIELD ADJUSTMENTS TO ACCOMMODATE EXISTING CONDITIONS IF AUTHORIZED BYTHE CLIENT, THE CLIENT'S REPRESENTATIVE, OR NATURAL RESOURCES DESIGN.
6. ALL GENERAL NOTES ARE FOR TYPICAL CONSTRUCTION ACTIVITIES; THEY MAY INCLUDE INFORMATION THAT IS NOTAPPLICABLE TO THE SCOPE OF THIS PROJECT.
7. THE CODES AND STANDARDS SHOWN ON THE PLANS ARE FOR GENERAL INFORMATION ONLY. THEY DO NOTNECESSARILY REPRESENT THE MOST CURRENT OR COMPLETE STANDARDS REQUIRED FOR THE CONSTRUCTION. THECONTRACTOR MUST REFER TO THE CORRECT, APPLICABLE CODES AND STANDARDS.
8. ACCESS TO THE PROJECT PROPERTY AND ALL SURROUNDING AREAS MUST BE MAINTAINED FOR ALL EMERGENCYSERVICES, PEDESTRIANS, AND DELIVERIES IF REQUIRED AND AS APPROPRIATE. ACCESS TO FIRE HYDRANTS MUSTNOT BE IMPAIRED.
9. THE CONTRACTOR SHALL RESTORE OR REPLACE ANY ITEMS TO REMAIN THAT ARE DAMAGED DURINGCONSTRUCTION TO ORIGINAL EXTENT, QUALITY AND CONDITION.
10. REFER TO THE TECHNICAL SPECIFICATIONS FOR ADDITIONAL INFORMATION.
11. THE CONTRACTOR MUST MAINTAIN A SET OF CONSTRUCTION PLANS WHICH HAVE BEEN MARKED UP TOACCURATELY CONVEY CONSTRUCTION WHICH HAS DEVIATED FROM THE APPROVED CONSTRUCTION PLANS. THESEPLANS MUST BE PROVIDED TO THE CLIENT, THE CLIENT'S REPRESENTATIVE, OR NATURAL RESOURCES DESIGN PRIORTO THE PROJECT CLOSEOUT.
GENERAL GRADING NOTES1. THE SITE MUST BE GRADED AND PAVED SO THAT NO NEW LOW POINTS WITHOUT
PROPER DRAINAGE ARE CREATED; NO PONDING SHALL OCCUR ONSITE UNLESSSPECIFICALLY NOTED OTHERWISE ON THE STORMWATER MANAGEMENT PLANS WITHINBMP FACILITIES OR ON THE SEDIMENT CONTROL PLAN WITHIN SEDIMENT TRAPS ORBASINS.
2. ALL PAVED SURFACES SHALL BE AT A 1.0% MINIMUM SLOPE. ALL GRASSED ANDLANDSCAPED AREAS SHALL BE AT A 2.0% MINIMUM SLOPE. EXCEPTIONS MAY BE MADEONLY IF APPROVED BY NATURAL RESOURCES DESIGN.
3. SPOT ELEVATIONS SHOWN AT TIE-IN POINTS WITH EXISTING SURFACES AREAPPROXIMATE AND SHALL BE FIELD VERIFIED BY THE CONTRACTOR. PROPOSEDELEVATIONS MAY BE MODIFIED WITH APPROVAL FROM NATURAL RESOURCES DESIGN TOMATCH EXISTING GRADE.
4. ANY UNSUITABLE IN SITU SOIL OR MATERIAL MUST BE REMOVED OR REMEDIATED PERDIRECTION FROM THE ENGINEER.
5. REFER TO THE SITE NOTES AND DETAILS FOR ADDITIONAL INFORMATION.
GENERAL UTILITY NOTES1. THE CONSTRUCTION WORK SHALL BE COMPLETED IN SUCH A WAY AS TO MINIMIZE
UTILITY OUTAGES. ALL UTILITY OUTAGES MUST BE COORDINATED WITH THEUTILITY OWNER AND AFFECTED PARTIES.
2. SOME EXISTING UTILITIES MAY NOT BE SHOWN ON THE PLANS. BEFORE BEGINNINGCONSTRUCTION, VERIFY THERE ARE NO CONFLICTS WITH EXISTING UTILITIES. TESTPIT AS REQUIRED TO DETERMINE LOCATIONS AND DEPTHS OF EXISTING UTILITIESWITHIN THE CONSTRUCTION WORK AREA. IF ANY EXISTING UTILITIES ARE FOUNDWHICH ARE NOT DEPICTED IN THE EXISTING CONDITIONS PLAN OR CONFLICT WITHTHE PROPOSED WORK NOTIFY NATURAL RESOURCES DESIGN.
3. NOTIFY NATURAL RESOURCES DESIGN IF COVER FOR ANY UTILITY IS REDUCEDBELOW THE MINIMUM REQUIRED.
4. THE SITE CIVIL PLAN IS MEANT TO CONVEY 'WET' (SANITARY SEWER, STORMSEWER, AND WATER) UTILITY WORK. ALL 'DRY' (ELECTRIC, NATURAL GAS,TELECOMMUNICATIONS) UTILITY WORK SHOWN IS FOR INFORMATION ANDREFERENCE ONLY.
5. REFER TO DC WATER STANDARDS FOR ABANDONMENT OF EXISTING SANITARYSEWER, STORM SEWER, AND WATER LATERALS AND MAINS. THIS INVOLVESDISCONNECTING ALL LATERALS AT THE MAINS, PLUGGING AND SEALING THEMAINS, AND REMOVING ALL ABANDONED METERS, VALVES AND APPURTENANCES.COORDINATE WORK WITH DC WATER INSPECTOR.
6. ALL WYE CONNECTIONS TO EXISTING SEWER LATERAL LINES SHALL MATCH THEEXISTING SIZE AND MATERIAL.
7. ALL WATER SERVICE LATER TEES SHALL BE PROVIDED WITH A VALVE AS CLOSE ASPOSSIBLE TO THE MAINS. IF NECESSARY DUE TO FIELD CONDITIONS OR CONFLICTSWITH OTHER UTILITIES, AND IN COORDINATION WITH DC WATER INSPECTOR, A DIPSWIVEL TEE (AWWA C111) MAY BE USED.
8. REFER TO DC WATER STANDARDS AND SPECIFICATIONS FOR WATER PIPEMATERIAL. ALL WATER LINES 2-INCHES DIAMETER AND SMALLER SHALL BE TYPE KCOPPER. ALL WATERLINES AND FITTINGS 3-INCHES DIAMETER AND LARGER SHALLBE RESTRAINED JOINT DUCTILE IRON.
9. BACKFLOW PREVENTION VALVES FOR ALL DOMESTIC WATER SERVICE AND FIRESUPPRESSION LATERALS SHALL BE PROVIDED INSIDE THE BUILDINGS UNLESSSPECIFICALLY NOTED OTHERWISE.
10. REMOVE ABANDONED UTILITIES AS REQUIRED.
11. ADJUST EXISTING STRUCTURE TOPS AND MANHOLES TO REMAIN WITHIN THELIMITS OF DISTURBANCE TO MATCH FINAL GRADE AS REQUIRED. INSTALLADDITIONAL STEPS WITHIN MANHOLES AS REQUIRED.
12. PER DC WATER REQUIREMENTS, UTILITY AS-BUILT PLANS MUST BE SUBMITTED.
13. REFER TO DC WATER GENERAL CONSTRUCTION NOTES, UTILITY NOTES AND UTILITYDETAILS FOR ADDITIONAL INFORMATION.
GENERAL PAVEMENT NOTES1. EXISTING PAVEMENT TO BE REPLACED SHALL AT MINIMUM MATCH THE EXISTING
CROSS SECTION.
2. EXISTING CURB AND/OR GUTTER TO BE REPLACED SHALL MATCH EXISTING TYPE,MATERIAL, AND DIMENSIONS.
3. SAWCUT EXISTING ASPHALT PAVEMENT 1' FROM EDGE OF NEW CURB AND/ORGUTTER FOR REPLACEMENT.
4. MILL AND OVERLAY EXISTING ASPHALT PAVEMENT 1' FROM EDGE OF NEWPAVEMENT TO PROVIDE SMOOTH TRANSITION.
5. MILL AND OVERLAY EXISTING ASPHALT PAVEMENT 10' FROM EITHER SIDE OFUTILITY TRENCHES IN PUBLIC SPACE, EXTENDED TO THE FULL WIDTH OF ANYAFFECTED TRAVEL LANES. THE CONTRACTOR SHALL PROVIDE AN ADDITIVE BIDPRICE FOR MILL AND OVERLAY WORK OF THE ENTIRE ROAD WIDTH AS THIS MAY BEREQUIRED BY THE DDOT INSPECTOR.
GENERAL PUBLIC SPACE NOTES1. THE DDOT INSPECTOR IS AUTHORIZED TO MODIFY CONSTRUCTION IN PUBLIC SPACE,
INCLUDING TRAFFIC CONTROL PLANS. THE CONTRACTOR SHALL ACCOMMODATE THEDDOT INSPECTOR'S REQUESTS IN REGARDS TO CONSTRUCTION IN PUBLIC SPACE.
2. ALL WORK IN PUBLIC SPACE IS SUBJECT TO A DDOT PUBLIC SPACE PERMIT AND A DDOTAPPROVED TRAFFIC CONTROL PLAN.
3. ALL EXISTING PARKING METERS, ROAD SIGNS, AND TRAFFIC CONTROL DEVICES ARE TOREMAIN MUST BE VISIBLE AT ALL TIMES OR BE RELOCATED OR REPLACED IF AFFECTEDBY THE CONSTRUCTION. COORDINATE WITH THE DDOT INSPECTOR.
4. REFER TO APPLICABLE STANDARDS AND SPECIFICATIONS FROM DC WATER, DDOT,AND DOEE AS APPROPRIATE FOR CONSTRUCTION IN PUBLIC SPACE.
5. PUBLIC SPACE ITEMS SHOWN TO BE DEMOLISHED MAY BE REQUIRED TO BE SALVAGEDPER DDOT STANDARDS. COORDINATE WITH THE DDOT INSPECTOR.
GENERAL DEMOLITION NOTES1. THE CONTRACTOR MUST OBTAIN A RAZE PERMIT TO DEMOLISH ANY STRUCTURE.
2. REFER TO THE ARCHITECTURAL PLANS FOR SELECTIVE DEMOLITION RELATED TOINTERIOR RENOVATIONS. COORDINATE WITH THE DESIGN TEAM, INCLUDING THESTRUCTURAL ENGINEER, IN REGARD TO THE STABILITY OF EXISTING STRUCTURES TOREMAIN.
3. DC WATER UTILITIES MUST BE DISCONNECTED AND ABANDONED PER DC WATERSTANDARDS AND ARE SUBJECT TO DC WATER PERMITS. REFER TO UTILITY OWNERS'REQUIREMENTS AND STANDARDS TO DEMOLISH OR ABANDON UTILITIES.
4. THE APPROXIMATE SCALE OF ABANDONMENT AND DEMOLITION OF SITE FEATURESAND UTILITIES ARE DEPICTED BOLD OR HATCHED ON THE DEMOLITION PLAN.
5. DEMOLITION OF SITE FEATURES AND UTILITIES TO REPLACE ITEMS IN KIND ARE NOTNECESSARILY SHOWN BUT ARE WITHIN THE SCOPE OF WORK.
6. SAWCUT EXISTING PAVEMENT TO BE REMOVED WHERE ADJACENT TO EXISTINGPAVEMENT TO REMAIN. FOR CONCRETE AND GRANITE, SAWCUT AT THE NEARESTJOINT.
7. ALL DEMOLITION DEBRIS MUST BE DISPOSED PER APPLICABLE LAW; DEMOLITIONDEBRIS MAY ONLY BE USED FOR BACKFILL IF EXPRESS KNOWLEDGE AND PERMISSION ISGRANTED FROM THE STRUCTURAL AND GEOTECHNICAL ENGINEERS.
8. REFER TO THE DEMOLITION NOTES AND DETAILS FOR ADDITIONAL INFORMATION.
CONDITIONS OF PUBLIC SPACE PERMITSPUBLIC SPACE PERMITS ARE ONLY GRANTED IN THE DISTRICT, BY THE POLICY, PLANNING ANDSUSTAINABILITY ADMINISTRATION (PPSA), UNDER CERTAIN CONDITIONS.
1. PERSONS REGULARLY PERFORMING PUBLIC SPACE EXCAVATION AND MANHOLEWORK ARE REQUIRED TO PROVIDE, ON A BIWEEKLY BASIS, PLANS SHOWING THEIRANTICIPATED ACTIVITIES IN THE PUBLIC SPACE WITHIN THAT TWO-WEEK PERIOD.
2. NO WORK SHALL BE UNDERTAKEN IF THE APPLICANT, OR THE PERSON ON WHOSEBEHALF THE APPLICATION IS MADE, HAS OUTSTANDING RESTORATION IN THE PUBLICSPACE. THIS RESTRICTION WILL ALSO APPLY TO APPLICANTS WITH TEMPORARYREPAIRS THAT HAVE FAILED AND THE APPLICANT DID NOT UNDERTAKE RESTORATIONWITHIN 24 HOURS OF NOTIFICATION BY THE OFFICE OF INFRASTRUCTUREOVERSIGHT (OIO).
3. PERMANENT RESTORATIONS MUST BE COMPLETED PRIOR TO THE WINTERSUSPENSION PERIOD, WHICH IS FROM NOVEMBER 1 THROUGH MARCH 31.
4. DC LAW 3129, UNDERGROUND FACILITIES PROTECTION ACT OF 1980, REQUIRESCONTACTING THE 'MISS UTILITY' AT (800) 257-7777 AT LEAST 48 HOURS AND NOTMORE THAN 10 DAYS (EXCLUDING SATURDAYS, SUNDAYS AND LEGAL HOLIDAYS)PRIOR TO THE START OF EXCAVATION. THIS IS REQUIRED SO NOTIFICATIONS CAN BEMADE TO PARTICIPATING PRIVATE UTILITY COMPANIES OF THE PROPOSED WORK.
5. IMPROPER HOUSEKEEPING VIOLATIONS ON JOB SITES RELATING TO DIRT AND DEBRISIN THE PUBLIC SPACE SHALL BE GROUNDS FOR A FINE OF $500.00 PER BLOCK PERDAY AND/OR REVOCATION OF THIS PERMIT.
6. AUTHORIZED WORK SHALL BE IN ACCORDANCE WITH THE SAFETY REQUIREMENTSFOR EXCAVATION AS OUTLINED IN THE DC DEPARTMENT OF TRANSPORTATIONSTANDARD SPECIFICATIONS FOR HIGHWAYS AND STRUCTURES.
7. WORK AUTHORIZED BY THIS PERMIT SHALL BE IN ACCORDANCE WITHREQUIREMENTS SET FORTH IN FHWA 'MANUAL OF UNIFORM TRAFFIC CONTROLDEVICES' AND TRAFFIC CONTROL DEVICES MUST BE ARRANGED ACCORDING TO THEAPPROVED TRAFFIC CONTROL PLANS FOR THIS PROJECT.
8. ACCESS TO ALLEYS, DRIVEWAYS, AND ROADWAYS MUST BE MAINTAINED AT ALLTIMES. THE TRAFFIC SERVICES ADMINISTRATION AND FIRE MARSHALL MUSTAPPROVE ANY CLOSURES OF THE RIGHTS-OF-WAY AND THE PERMIT MUST REFLECTTHIS APPROVAL.
9. WHERE APPLICABLE, ALL INTERSECTIONS MUST BE PLATED.
10. SIX (6) FEET OF SIDEWALK ACCESS MUST BE MAINTAINED AT ALL TIMES. THE TRAFFICSERVICES ADMINISTRATION MUST APPROVE ANY CLOSURES OF THE RIGHTS-OF-WAYAND THE PERMIT MUST REFLECT THIS APPROVAL.
11. THE CONTRACTOR IS RESPONSIBLE FOR REMOVING AND SALVAGING ALLCOBBLESTONE PAVERS AND OTHER SPECIAL PAVERS REMOVED IN CONNECTIONWITH EXCAVATION. THE CONTRACTOR MUST SECURE AND STORE MATERIALS ATCONTRACTOR'S EXPENSE AND REINSTALL ALL MATERIALS DEEMED SPECIAL ORHISTORIC AS DIRECTED BY DISTRICT ENGINEERS OR OIO.
12. ALL STREETLIGHT AND TRAFFIC SIGNAL CABLES MUST BE SAFEGUARDED AT ALLTIMES.
13. STORAGE OF EQUIPMENT AND/OR SUPPLIES IS PROHIBITED IN PUBLIC SPACEWITHOUT A PERMIT EXPRESSLY AUTHORIZING IT.
14. PARKING ON NON-COMMERCIAL, PRIVATE VEHICLES IS PROHIBITED IN THE PUBLICSPACE SUBJECT TO THE PUBLIC SPACE PERMIT.
15. ACCESS TO ON STREET PARKING MUST BE AVAILABLE AT ALL TIMES WHEN WORK ISNOT ALLOWED.
16. THE CONTRACTOR SHALL NOTIFY THE TRAFFIC SERVICES ADMINISTRATION PRIOR TOCOMMENCEMENT OF WORK (202) 671-2700.
· CONTRACTOR SHALL MAINTAIN TWO LANES OF TRAFFIC AT ALL TIMES· ADVANCE WARNING SIGNS SHALL BE 43x48 FLORESCENT ORANGE· WORK HOURS ARE 9:30 AM TO 3:30 PM UNLESS ALLOWED OTHERWISE BY
PERMIT.
16. IF THE WORK ZONE WILL BLOCK METERS OR AFFECT METERED PARKING SPACES INSUCH A MANNER AS TO PREVENT FREE FLOW OF TRAFFIC, THESE METERS NEED TOBE RENTED FROM THE METER BRANCH OF PARKING SERVICE AT (202) 671-2700.THE PERMIT HOLDER MUST CONTACT THE METER BRANCH AS SOON AS IDENTIFYINGTHIS IMPACT. TEN BUSINESS DAYS ARE NECESSARY FOR PROCESSING THE REQUESTS.
17. THERE MUST BE NO MORE THAN 1200 FEET EXCAVATED AT ONE TIME.
18. THE PERMIT HOLDER IS REQUIRED TO REPAIR ALL FAILED CUTS WITHIN 24 HOURS OFNOTIFICATION BY THE DISTRICT DEPARTMENT OF TRANSPORTATION, OFFICE OFINSTRUCTURE OVERSIGHT.
ABBREVIATIONS
ABND ABANDONED MAX MAXIMUM
AD AREA DRAIN ADA AMERICANS WITH DISABILITIES ACT
WW WINDOW WELL MEP MECHANICAL/ELECTRICAL/PLUMBINGAPPROX APPROXIMATE MH MANHOLE
BFP BACKFLOW PREVENTER MIN MINIMUM
BLDG BUILDING BRL BUILDING RESTRICTION LINE
OC ON CENTER PROP PROPOSED
SAN SANITARY BSMT BASEMENT
SCH SCHEDULE FFE FINISHED FLOOR ELEVATION
BW BOTTOM OF WALL STM STORM
CI CAST IRON SWR SEWER
CO CLEANOUT TC TOP OF CURB
CS COMBINED SEWER TW TOP OF WALL
ELEV ELEVATION VB VERTICAL BEND
EX EXISTING VCP VITRIFIED CLAY PIPE
W/ WITH BM BENCHMARK
HB HORIZONTAL BEND W/M WATER MAIN
DPR II - 4 PARKSSTORMWATERIMPROVEMENTS
FORT GREBLERECREATION CENTERMARTIN LUTHER KING JR. AVE. SW& ELMIRA ST. SWWASHINGTON, DC
Designed:Drawn:
Checked:
Date:Revisions:
SEAL
CECILIA LANEENVIRONMENTAL PROTECTION SPECIALISTWATERSHED PROTECTION DIVISIONDC DEPT. OF ENERGY AND ENVIRONMENT1200 FIRST STREET NE, 5TH FLOORWASHINGTON, DC 20002DESK: (202) 535-2247CELL: (202) 734-9527EMAIL: [email protected]
C100
EXISTING CONDITIONS
C. SONNEC. SONNEL. WHEELER
NOVEMBER 25, 2019
DPR II - 4 PARKSSTORMWATERIMPROVEMENTS
FORT GREBLERECREATION CENTERMARTIN LUTHER KING JR. AVE. SW& ELMIRA ST. SWWASHINGTON, DC
Designed:Drawn:
Checked:
Date:Revisions:
SEAL
CECILIA LANEENVIRONMENTAL PROTECTION SPECIALISTWATERSHED PROTECTION DIVISIONDC DEPT. OF ENERGY AND ENVIRONMENT1200 FIRST STREET NE, 5TH FLOORWASHINGTON, DC 20002DESK: (202) 535-2247CELL: (202) 734-9527EMAIL: [email protected]
SDSD
SD
S
SDSD
SDSD
SDSD
SDSD
SDSD
SDSD
SDSD
SDSD
SDSD
SDSD
SDSD
SDSD
SDSD
SD
SD
SD
WW
WW
WW
W
GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS
OHUOHU
OHUOHU
OHUOHU
OHUOHU
OHUOHU
OHUOHU
OHUOHU
OHUOHU
OHUOHU
OHUOHU
OHUOHU
OHUOHU
OHUOHU
OHUOHU OHU OHU OHU OHU OHU OHU
COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM
WW
WW
WW
WW
S 81°36'55" W ~ 211.49' (COMP.)
N 05°20' W
~ 185.09' (CO
MP.)
S 84°40' W ~ 235.20' (R)
PARCEL252/3539,640 SQ.FT.
CHESAPEAKE STREET, SW
276148.53GV
285144.44UGW
289144.53THT
SD
SD
SDSD
SDSD
WW
WW
W
UGE
UG
E
UG
E
UG
E
UG
E
UGE
UGE
UGE
UGE
EX. GRASSAREA
EX. CURB & GUTTER
EX. CONC. SIDEWALK
EX. GRASS STRIP EX.CONC.WALK
EX.CONC.APRON
EX.C/S
EX. ASPHALT
DRIVEWAY
EX. CONC. CURB
EX. FRAM
E WALL
EX. CH
AIN LIN
K FENC
E
EX. DUGOUTON CONC.
EX. BASEBALLFIELD
EX. DU
GO
UT
ON
CO
NC
.
EX. CHAIN LINKFENCE (TYP.)
EX. DRINKINGFOUNTAIN
EX.ASPHALT
AREA
EX. CONC.CURB
EX.CONC.WALL
EX. GRASSAREA
EX. GRASSAREA
EX. 18" RCP
STORM SEWER
EX. 18" RCP
STORM SEWER
EX. 10" HDPE
STORM SEWER
EX. 3"TREE
EX. 20"ELM
EX. 24"ELM
EX. 3"TREE
EX. 14"TREE (2)
EX. 20"ELM
EX. 6"ELM
EX. 6"ELM
EX. 10"ELM
EX. 10"ELM
EX. 6"TREE
EX. 10"TREE (2)
EX. 6"TREE
EX. 6"TREE
EX. 8"TREE
EX. 10"TREE
EX. 18"ELM
EX. 6"MULBERRY
EX. 24"OAK
EX. 10"MULBERRY
EX. 3"TREE
EX. 3"TREE
EX. 3"TREE
EX. BOLLARDS
EX. CRAPEMYRTLE
EX. 15" RC
P
STOR
M SEW
ER
155
149
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158 15
9
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154
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LODLODLOD
LOD LOD LODLOD
LOD
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LOD
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LOD
LOD LOD LOD
LOD
LOD
LOD
LOD
LOD
LOD
LOD
LOD
LOD
LOD
LOD
LOD
LODLO
D
LOD
LODLOD
LODLOD
LOD
LOD
TPTP
TP
TP
TP
TP
TPTP
TP
TPTP
TPTP
TPTP
TP
TP
TP
TPTP
TPTP
TPTP
TPTP
TPTP
TP
TP
TP
TP
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TPTP
TPTP
TP
TP
TPTPTPTPTP
TPTP
SAFSAFSAFSAFSAFSAFSAFSAFSAFSAFSAFSAFSAFSAFSAFSAF
SAF
SAF
SAF
SAF
SAF
SAF
SAF
SAF
SAF
SAF
SAF
SAF
SAF
SAF
SAF SAF SAF
SAFSAF
SAF
SAFSAF
SAF
SAF
PLACE STEEL BLAST PLATESTO PROTECT EXISTINGSIDEWALK & CURBING
C200
DEMOLITION ANDPHASE 1 EROSIONCONTROL PLANS
C. SONNEC. SONNEL. WHEELER
NOVEMBER 25, 2019
DPR II - 4 PARKSSTORMWATERIMPROVEMENTS
FORT GREBLERECREATION CENTERMARTIN LUTHER KING JR. AVE. SW& ELMIRA ST. SWWASHINGTON, DC
Designed:Drawn:
Checked:
Date:Revisions:
SEAL
CECILIA LANEENVIRONMENTAL PROTECTION SPECIALISTWATERSHED PROTECTION DIVISIONDC DEPT. OF ENERGY AND ENVIRONMENT1200 FIRST STREET NE, 5TH FLOORWASHINGTON, DC 20002DESK: (202) 535-2247CELL: (202) 734-9527EMAIL: [email protected]
PROJECT NARRATIVE:THE PURPOSE OF THIS DOEE-FUNDED PROJECT IS TO CONSTRUCT STORMWATER IMPROVEMENTS TO REDUCE RUNOFF ANDNON-POINT POLLUTION. PROPOSED IMPROVEMENTS INCLUDE INSTALLATION OF TWO VEGETATIVE STORMWATER SWALES, ACOMPOST-AMENDED GRASS CHANNEL AND ASSOCIATED SITE IMPROVEMENTS ALONG CHESAPEAKE STREET, SW.TOTAL DISTURBED AREA IS 12,575 SQUARE FEET.
CONSTRUCTION SEQUENCE:1. CONTACT THE DOEE INSPECTOR AND HAVE A PRE-CONSTRUCTION MEETING ONSITE.2. INSTALL PHASE I EROSION AND SEDIMENT CONTROL FEATURES AS INDICATED.3. STOCKPILE TOPSOIL ONSITE AT LOCATION INDICATED. IMMEDIATELY SEED & MULCH STOCKPILE OR TARP STOCKPILE.4. EXCAVATE AND CONSTRUCT DRY SWALES AND GRADE SITE, INSTALLING PHASE II EROSION AND SEDIMENT CONTROL
FEATURES AS REQUIRED TO PROTECT BMPS FROM SOIL CONTAMINATION AND COMPACTION (TEMPORARY DIVERSIONBERMS MAY BE USED TO DIVERT UNCONTAMINATED RUNOFF AWAY FROM CONSTRUCTION AREAS).
5. INSTALL UNDERDRAIN AND TRENCH DRAIN PIPING AS INDICATED. (TRENCH DRAIN PIPING TO BE PLUGGED).6. PLACE STONE, BIORETENTION MIX AND MULCH IN DRY SWALES TO STABILIZE AREAS.7. COMPLETE SITE GRADING OPERATIONS. IMMEDIATELY STABILIZE ALL AREAS UPON ACHIEVING FINAL GRADES.8. PLACE AND INCORPORATE TOPSOIL AND COMPOST INTO BMP-3 AREA, SEED AND PROTECT WITH TEMPORARY STRAW
EROSION BLANKETS.9. REMOVE CONSTRUCTION ENTRANCE STONE, SEED AND MULCH AREA.10. PLANT DRY SWALES, SEED REMAINING DISTURBED AREAS.11. FOLLOWING STABILIZATION OF ALL DISTURBED AREAS AND APPROVAL OF DOEE INSPECTOR, REMOVE EROSION CONTROL
MEASURES FROM SITE.12. CLEAN TRENCH DRAINS, THEN REMOVE PIPE PLUGS TO ALLOW CONCENTRATED FLOW INTO BMPS.
SOIL CONDITIONS:
1. SOIL MAPPING INFORMATION FOR THE PROJECT SITE INDICATES TWO UNDERLYING SOILS, AS SHOWN ON THE PLAN ANDDESCRIBED BELOW.· UDORTHENTS, GRAVELLY, SMOOTHED (U7) ARE WELL DRAINED, HSG "A" SOILS. TYPICAL PROFILE IS 0 TO 5 INCHES
GRAVELLY LOAM; 5 TO 65 INCHES GRAVELLY SANDY LOAM. DEPTH TO GROUNDWATER IS TYPICALLY GREATER THAN80 INCHES.
· CHILLUM-URBAN LAND COMPLEX (CdB & CdD) ARE WELL DRAINED, HSG "C" SOILS, WITH APPROXIMATELY 40%URBAN LAND, 40% CHILLUM, AND 20% MINOR COMPONENTS. TYPICAL PROFILE FOR CHILLUM IS 0 TO 2 INCHES SILTLOAM; 2 TO 12 INCHES GRAVELLY LOAM; 12 TO 24 INCHES CLAY LOAM; 24 TO 34 INCHES LOAMY SAND; 34 TO 72INCHES GRAVELLY SILTY CLAY LOAM. DEPTH TO GROUNDWATER IS GREATER THAN 80 INCHES.
2. INFILTRATION TESTS WERE PERFORMED AT THE LOCATIONS INDICATED. INFILTRATION RATE FOR TP-1 IS 0.70INCHES/HOUR. INFILTRATION RATE FOR TP-2 IS NIL. AN UNDERDRAIN SYSTEM IS TO BE INCORPORATED INTO THE DRYSWALE DESIGN.
3. ESTIMATED CUT IS 350 CY. ESTIMATED FILL IS 50 CY.
E&SC MEASURES
LEGENDEXISTING 1 FOOT CONTOUR
EXISTING 5 FOOT CONTOUR
LIMITS OF DISTURBANCE
FENCING
TREE LINE/CANOPY
DEMOLITION AREA/ITEM
LOD
XX
SAFSAFSAF
150
1
3
32
1
1
4 5
DEMOLITION REMOVE CHAINLINK FENCE (SEE NOTES)
REMOVE 10"Ø HDPE CULVERT
REMOVE RIPRAP
REMOVE TREE
SAWCUT & REMOVE ASPHALT
1
2
3
4
5
1
DEMOLITION NOTES:1. CONTRACTOR SHALL BE RESPONSIBLE FOR PROPER DISPOSAL OF ALL DEMOLITION MATERIALS REMOVED FROM SITE.2. REMOVE EXISTING CHAINLINK FENCING AROUND BASEBALL FIELD AS REQUIRED TO PERFORM GRADING OPERATIONS.
FENCING SHALL BE REMOVED TO THE NEAREST EXISTING FENCE POST. FENCING AND POSTS THAT ARE REMOVED SHALLBE STORED ONSITE FOR REINSTALLATION FOLLOWING COMPLETION OF GRADING AND SOIL STABILIZATION OPERATIONS.
3. CONTRACTOR SHALL COORDINATE WITH SCHOOL ADMINISTRATION FOR ALL PROPOSED CONSTRUCTION WITHIN SCHOOLYARD.
4. REMOVAL OF EXISTING DRAINAGE CULVERT AND RIPRAP SHALL BE COORDINATED WITH GRADING OPERATIONS SUCHTHAT AREA IS REGRADED AND STABILIZED QUICKLY TO MINIMIZE POTENTIAL EROSION.
5. EXISTING WATER FOUNTAIN AND SUPPLY PIPING TO REMAIN. CONTRACTOR TO TAKE APPROPRIATE MEASURES TOPROTECT FROM CONSTRUCTION DAMAGE.
SEE NOTE 2
SEE NOTE 2
SEE NOTE 3
PROVIDE GATE
SBDSBDSBD
SSFSSFSSF
SDSD
SD
S
SDSD
SDSD
SDSD
SDSD
SDSD
SDSD
SDSD
SDSD
SDSD
SDSD
SDSD
SDSD
SDSD
SD
SD
SD
WW
WW
WW
GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS
OHUOHU
OHUOHU
OHUOHU
OHUOHU
OHUOHU
OHUOHU
OHUOHU
OHUOHU
OHUOHU
OHUOHU
OHUOHU
OHUOHU
OHUOHU
OHUOHU OHU OHU OHU OHU OHU OHU
COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM
WW
WW
WW
WW
S 81°36'55" W ~ 211.49' (COMP.)
N 05°20' W
~ 185.09' (CO
MP.)
PARCEL252/3539,640 SQ.FT.
CHESAPEAKE STREET, SW
276148.53GV
285144.44UGW
289144.53THT
SD
SD
SDSD
SDSD
WW
WW
W
UGE
UG
E
UG
E
UG
E
UG
E
UGE
UGE
UGE
UGE
EX. GRASSAREA
EX. CURB & GUTTER
EX. CONC. SIDEWALK
EX. GRASS STRIP EX.CONC.WALK
EX.CONC.APRON
EX.C/S
EX. ASPHALT
DRIVEWAY
EX. CONC. CURB
EX. FRAM
E WALL
EX. CH
AIN LIN
K FENC
E
EX. DUGOUTON CONC.
EX. BASEBALLFIELD
EX. DU
GO
UT
ON
CO
NC
.
EX. CHAIN LINKFENCE (TYP.)
EX. DRINKINGFOUNTAIN
EX.ASPHALT
AREA
EX. CONC.CURB
EX.CONC.WALL
EX. GRASSAREA
EX. GRASSAREA
2
3
5
6
EX. 18" RCP
STORM SEWER
EX. 18" RCP
STORM SEWER
EX. 3"TREE
EX. 20"ELM
EX. 24"ELM
EX. 3"TREE
EX. 14"TREE (2)
EX. 20"ELM
EX. 6"ELM
EX. 6"ELM
EX. 10"ELM
EX. 10"ELM
EX. 6"TREE
EX. 10"TREE (2)
EX. 6"TREE
EX. 6"TREE
EX. 8"TREE
EX. 10"TREE
EX. 18"ELM
EX. 6"MULBERRY
EX. 24"OAK
EX. 10"MULBERRY
EX. 3"TREE
EX. 3"TREE
EX. BOLLARDS
EX. CRAPEMYRTLE
EX. 15" RC
P
STOR
M SEW
ER
155
149
150
151
152
153
154
155
156
156
159
160
161
162
163
164
158 15
9
160
161
162
154
156
157
SD
SD
SD
SD
SD
SD
SD
SD
SD
LODLODLOD
LOD LOD LODLOD
LOD
LOD
LOD
LOD
LOD
LOD LOD LOD
LOD
LOD
LOD
LOD
LOD
LOD
LOD
LOD
LOD
LOD
LOD
LOD
LODLO
D
LOD
LODLOD
LODLOD
LOD
LOD
TPTP
TP
TP
TP
TP
TPTP
TP
TPTP
TPTP
TPTP
TP
TP
TP
TPTP
TPTP
TPTP
TPTP
TPTP
TP
TP
TP
TP
TP
TPTP
TPTP
TP
TP
TPTPTPTPTP
TPTP
SAFSAFSAFSAFSAFSAFSAFSAFSAFSAFSAFSAFSAFSAFSAFSAF
SAF
SAF
SAF
SAF
SAF
SAF
SAF
SAF
SAF
SAF
SAF
SAF
SAF
SAF
SAF SAF SAF
SAFSAF
SAF
SAFSAF
SAF
SAF
153
154
154 155156
157
158
155
154
155
154
155
154
155
156
155
SSFSSFSSFSSFSSFSSFSSFSSFSSFSSFSSFSSFSSF
SSF
PLACE STEEL BLAST PLATESTO PROTECT EXISTINGSIDEWALK & CURBING
SBDSBD
SBD
SBD
SBDSBD
SBDSBD
SBD
SBD
SBD
SBD
SBD
SBD
SBD
SBD
SBDSBD
SBD
SBD
SBDSBD
SBDSBD
SBDSBD
SBD
SBD
SBD
SBD
SBD
SBD
SBD
SBD
SBD
SBD
SBD
SBD
SBD
SBD SBD
SBD
SBD
SBDSBD SBD SBD SBD SBD
C210
PHASE 2 EROSIONCONTROL & GRADING
PLANSC. SONNEC. SONNEL. WHEELER
NOVEMBER 25, 2019
DPR II - 4 PARKSSTORMWATERIMPROVEMENTS
FORT GREBLERECREATION CENTERMARTIN LUTHER KING JR. AVE. SW& ELMIRA ST. SWWASHINGTON, DC
Designed:Drawn:
Checked:
Date:Revisions:
SEAL
CECILIA LANEENVIRONMENTAL PROTECTION SPECIALISTWATERSHED PROTECTION DIVISIONDC DEPT. OF ENERGY AND ENVIRONMENT1200 FIRST STREET NE, 5TH FLOORWASHINGTON, DC 20002DESK: (202) 535-2247CELL: (202) 734-9527EMAIL: [email protected]
LEGENDEXISTING 1 FOOT CONTOUR
EXISTING 5 FOOT CONTOUR
PROPOSED 1 FOOT CONTOUR
PROPOSED 5 FOOT CONTOUR
LIMITS OF DISTURBANCE
FENCING
TREE LINE/CANOPY
PAVEMENT PATCH
PROPOSED SPOT ELEVATION
LOD
XX
150
150
+ 151.38
E&SC MEASURES
SAFSAFSAF
SBDSBDSBD
SSFSSFSSF
SEE SWM PLAN FORPIPING INFORMATION
SEE NOTE 1
NOTES:1. INSTALL STRAW BALE DIKES AROUND PERIMETER OF DRY SWALES IMMEDIATELY AFTER PLACEMENT OF BIORETENTION
MEDIA AND MULCH. STRAW BALE DIKES SHALL REMAIN IN PLACE UNTIL SURROUNDING AREA IS PLANTED ANDSTABILIZED.
2. REFER TO SHEET C200 FOR SEQUENCE OF CONSTRUCTION.3. REFER TO STORMWATER MANAGEMENT PLAN (SHEET C310) FOR PIPING INFORMATION.
C210
EROSION CONTROLNOTES & DETAILS
C. SONNEC. SONNEL. WHEELER
NOVEMBER 25, 2019
DPR II - 4 PARKSSTORMWATERIMPROVEMENTS
FORT GREBLERECREATION CENTERMARTIN LUTHER KING JR. AVE. SW& ELMIRA ST. SWWASHINGTON, DC
Designed:Drawn:
Checked:
Date:Revisions:
SEAL
CECILIA LANEENVIRONMENTAL PROTECTION SPECIALISTWATERSHED PROTECTION DIVISIONDC DEPT. OF ENERGY AND ENVIRONMENT1200 FIRST STREET NE, 5TH FLOORWASHINGTON, DC 20002DESK: (202) 535-2247CELL: (202) 734-9527EMAIL: [email protected]
EROSION & SEDIMENT CONTROL NOTES
1. THE DOEE INSPECTOR IS AUTHORIZED TO MODIFY THE LOCATION, SCALE, AND QUANTITY OF SEDIMENT CONTROLMEASURES. THE CONTRACTOR SHALL ACCOMMODATE THE DOEE INSPECTOR'S REQUESTS IN REGARDS TO EROSIONAND SEDIMENT CONTROL.
2. THE CONTRACTOR IS AUTHORIZED TO MAKE MINOR ADJUSTMENTS IN REGARDS TO THE LIMITS OF DISTURBANCEAND SEDIMENT CONTROL MEASURES TO PERFORM THE WORK AND ACCOMMODATE FIELD CONDITIONS. THECONTRACTOR MUST COORDINATE WITH THE DOEE INSPECTOR.
3. A TEMPORARY STONE CONSTRUCTION ENTRANCE MUST BE PROVIDED AT ALL POINTS OF CONSTRUCTION VEHICLEEGRESS. THE WIDTH AND LENGTH OF ALL CONSTRUCTION ENTRANCES MUST BE MAINTAINED BY ADDING STONEFROM A STOCKPILE TO BE MAINTAINED ON SITE. PROJECTS WHICH REQUIRE RELATIVELY SMALL AMOUNTS OFDISTURBANCE MAY NOT REQUIRE A TEMPORARY STONE CONSTRUCTION ENTRANCE IF PERMISSION IS GRANTEDFROM THE DOEE INSPECTOR. CLEAN ALL TRUCKS AND EQUIPMENT OF MUD, DIRT, AND DUST TO AVOID TRACKINGSILT INTO PUBLIC SPACE.
4. THE DOEE INSPECTOR OR ENGINEER MAY DETERMINE SAFETY FENCE IS REQUIRED NEAR THE PERIMETER OF THESITE OR SURROUNDING AREAS WHERE THE PUBLIC TRAVERSES THROUGH THE SITE DURING CONSTRUCTION ORPOTENTIALLY HAZARDOUS AREAS. SAFETY FENCE MUST BE AT LEAST 42" HIGH, HAVE OPENINGS NO MORE THAN 2",AND HAVE SUPPORTING POSTS NO MORE THAN 8' APART. ANY REQUIRED SAFETY FENCE MUST BE KEPT IN GOODWORKING CONDITION.
5. THE LIMITS OF DISTURBANCE AND SEDIMENT CONTROL MEASURES ARE SHOWN APPROXIMATELY; PRESENTATIONON THE PLANS MAY DEVIATE SLIGHTLY FROM THE ACTUAL DESIGN INTENT FOR GRAPHICAL CLARITY.
6. TEMPORARY SOIL STOCKPILES SHOULD BE PLACED AS NEEDED ON THE SITE IN COORDINATION WITH THE DOEEINSPECTOR. INSTALL SILT FENCE AROUND THE PERIMETER OF ALL STOCKPILES AND COVER WITH A TARP OR OTHERAPPROVED IMPERMEABLE SURFACE PRIOR TO RAIN EVENTS.
7. THE CONTRACTOR SHALL PROVIDE INLET PROTECTION FOR ALL CATCH BASINS, CURB INLETS, DRAINS, AND RISERSTRUCTURES ON OR ADJACENT TO THE LIMITS OF DISTURBANCE. ANY SEWER WHICH BECOMES CLOGGED DUE TOCONSTRUCTION MUST BE PROMPTLY CLEANED AND CLEARED.
8. ANY AND ALL SITE STORM RUNOFF FROM DISTURBED AREAS MUST BE FILTERED OR OTHERWISE TREATED TOREMOVE SEDIMENT PRIOR TO LEAVING THE SITE. SEDIMENT MUST BE PLACED IN AN APPROVED AREA ANDSTABILIZED. SEDIMENT MUST NOT BE PLACED IN A FLOODPLAIN, WETLAND, OR WITHIN THE CRITICAL ROOT ZONEOF AN EXISTING TREE TO REMAIN.
9. THE CONTRACTOR SHALL PROVIDE TREE PROTECTION FOR ALL TREES TO REMAIN ON OR ADJACENT TO THE LIMITSOF DISTURBANCE. DO NOT TRAVERSE MACHINERY ON, COMPACT, OR DISTURB ANY AREA WITHIN THE CRITICALROOT ZONE OF AN EXISTING TREE TO REMAIN.
10. MINIMIZE DUST GENERATION DURING CONSTRUCTION PER DOEE STANDARDS.11. REMOVE OFF- SITE ACCUMULATIONS OF SEDIMENT DAILY DURING CONSTRUCTION AND IMMEDIATELY AT THE
REQUEST OF A DOEE INSPECTOR.12. EROSION AND SEDIMENT CONTROL DETAILS ARE INCLUDED ON THE PLANS FOR REFERENCE ONLY AND ARE NOT
INTENDED TO REPRESENT A TOTAL INCLUSION OF ALL EROSION AND SEDIMENT CONTROL DETAILS AND STANDARDSTHAT MAY BE REQUIRED FOR THE PROJECT. CONSTRUCTION SHALL BE IN ACCORDANCE WITH THE MOST RECENTVERSION OF ALL DOEE DETAILS AND STANDARDS.
13. REFER TO THE DOEE 2017 EROSION AND SEDIMENT CONTROL MANUAL FOR DESIGN, CONSTRUCTION, ANDMAINTENANCE SPECIFICATIONS FOR EACH ESC MEASURE.
C220
EROSION & SEDIMENTCONTROL DETAILS
C. SONNEC. SONNEL. WHEELER
AUGUST 2019
DPR II - 4 PARKSSTORMWATERIMPROVEMENTS
FORT GREBLERECREATION CENTERMARTIN LUTHER KING JR. AVE. SW& ELMIRA ST. SWWASHINGTON, DC
Designed:Drawn:
Checked:
Date:Revisions:
SEAL
CECILIA LANEENVIRONMENTAL PROTECTION SPECIALISTWATERSHED PROTECTION DIVISIONDC DEPT. OF ENERGY AND ENVIRONMENT1200 FIRST STREET NE, 5TH FLOORWASHINGTON, DC 20002DESK: (202) 535-2247CELL: (202) 734-9527EMAIL: [email protected]
S
SS
SS
SS
SS
SS
S
SDSD
SDSD
SDSD
SDSD
SDSD
SD
SD
WW
WW
WW
WW
WW
W W
WW
WW
276148.53GV
DS
CO
DS
WW
EX. GRASSAREA
EX. CURB & GUTTER
EX. CONC. SIDEWALK
EX. GRASS STRIP EX.CONC.WALK
EX.CONC.APRON
EX.C/S
EX.C/S
EX. ASPHALT
DRIVEWAY
EX. CONC.
EX. LOADINGDOCK
EX. CONC. CURB
EX. FRAM
E WALL
EX. CH
AIN LIN
K FENC
E
EX. BASEBALLFIELD
EX. DU
GO
UT
ON
CO
NC
.
EX. DRINKINGFOUNTAIN
EX. CONC. WALK
EX.ASPHALT
AREA
EX. CONC. WALK
EX.RIP-RAP
CHANNEL
EX. CONC.CURB
EX. BRICKSCHOOLBUILDING
EX. BRICKSCHOOLBUILDING
EX. STONE/METALSHELTER
EX. GRAVEL WALK
EX. GRASSAREA
EX.CONC.WALL
EX. CONC.WALL
EX.A/C
EX. GRASSAREA
EX. GRASSAREA
EX. UGE(TYP.)
EX. FRAMESCHOOLBUILDING
EX. OPEN PORCH
EX.C/S
EX.C/S
EX. GRASSAREA
DS
EX. 3"TREE
EX. 24"OAK
EX. BOLLARDS
EX. CRAPEMYRTLE
DS
155
149
150
151
152
153
154
155
156
156
156
156
159
160
161
162
163
164
158 15
9
160
162
161
162
154
156
157
SD
SD
SD
SD
153
154
154 155156
157
158
155
154
155
154
155
154
155
156
155
PLACE STEEL BLAST PLATESTO PROTECT EXISTINGSIDEWALK & CURBING
X X X X X X X X
XX
XX
XX
XX
C300
DRAINAGE AREA MAP
C. SONNEC. SONNEL. WHEELER
NOVEMBER 25, 2019
DPR II - 4 PARKSSTORMWATERIMPROVEMENTS
FORT GREBLERECREATION CENTERMARTIN LUTHER KING JR. AVE. SW& ELMIRA ST. SWWASHINGTON, DC
Designed:Drawn:
Checked:
Date:Revisions:
SEAL
CECILIA LANEENVIRONMENTAL PROTECTION SPECIALISTWATERSHED PROTECTION DIVISIONDC DEPT. OF ENERGY AND ENVIRONMENT1200 FIRST STREET NE, 5TH FLOORWASHINGTON, DC 20002DESK: (202) 535-2247CELL: (202) 734-9527EMAIL: [email protected]
PROPOSED CONDITIONSDRAINAGE AREA MAP
SCALE: 1"=20'
BMP-2DRY SWALE
TIE TO EXISTINGTRENCH DRAIN
DRAINAGE BOUNDARY(TYP)
DRAINAGE BOUNDARY(TYP)
NEW TRENCH DRAIN
DA-1
DA-3
DA-2
DA-4
DA-5
CHESAPEAKE ST. NW
TC PATH - SEGMENT 1A100 FEET SHEET FLOW@ 0.75 % - TURF
TC PATH - SEGMENT 1B40 FEET SHALLOW CONC. FLOW@ 0.50 % - CONCRETE
TC PATH - SEGMENT 2A100 FEET SHEET FLOW@ 0.75 % - TURF
TC PATH - SEGMENT 2B100 FEET SHALLOW CONC. FLOW
@ 0.50 % - TURF
TC PATH - SEGMENT 3A100 FEET SHEET FLOW@ 0.50 % - PAVED
TC PATH - SEGMENT 3B55 FEET SHALLOW CONC. FLOW@ 0.50 % - PAVED
TC PATH - SEGMENT 4A82 FEET SHEET FLOW@ 1.90 % - PAVED
TC PATH - SEGMENT 4B62 FEET CHANNEL FLOW@ 5.5 % - PAVED
TC PATH - SEGMENT 5A56 FEET SHEET FLOW
@ 0.90 % - TURF
TC PATH - SEGMENT 2C15 FEET CHANNEL FLOW
@ 2.6 % - TURF
NEW CURB DIRECTSFLOW TO TRENCH DRAIN
BMP-1DRY SWALE
BMP -3DISCONNECT TOAMENDED SOILS
LEGENDEXISTING 1 FOOT CONTOUR
EXISTING 5 FOOT CONTOUR
PROPOSED 1 FOOT CONTOUR
PROPOSED 5 FOOT CONTOUR
DRAINAGE AREA BOUNDARY
FLOW DIRECTION
TIME OF CONC. FLOW PATHS: - SHEET FLOW
- SHALLOW CONCENTRATED FLOW
- CHANNEL FLOW
150
150
SDSD
SDSD
SDSD
SDSD
SDSD
SDSD
SDSD
SDSD
SDSD
SDSD
SDSD
SDSD
SDSD
SDSD
SDSD
SDSD
SDSD
SDSD
SD
SD
SD
SDWW
WW
WW
WW
WW
GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS
OHUOHU
OHUOHU
OHUOHU
OHUOHU
OHUOHU
OHUOHU
OHUOHU
OHUOHU
OHUOHU
OHUOHU
OHUOHU
OHUOHU
OHUOHU
OHUOHU
OHUOHU
OHUOHU
OHUOHU
OHU
OHU
OHU OHU OHU OHU OHU OHU OHU OHU OHU OHU
COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM COMM
WW
WW
WW
WW
276148.53GV
SD
SD
SDSD
SD
WW
WW
UGE
UG
E
UG
E
UG
E
UG
E
UGE
UGE
UGE
UGE UGE UGE
EX. 12" WRPD GASLINE
EX. UGT
EX. 8" WATERLINE
155
149
150
151
152
153
154
150
151
152
153
154
155
155
156
156
159
160
161
162
163
164
158 15
9
160
162
161
162
154
156
157
SD
+ 153.60
+ 153.00
+ 153.00
+ 153.50+ 153.40
+ 153.30
+ 153.20
+ 153.10+ 153.10
+ 153.20
+ 153.60
+ 153.65
+ 153.60
+ 153.20
+ 153.20
+ 153.30
+ 153.40
+ 153.50
+ 153.60
+ 153.10
SD
SD
SD
SD
SD
SD
SD
SD
+ 153.50
+ 153.40
+ 153.20
+ 153.30
+ 153.10
+ 153.00
+ 153.00
153.10 +
+ 153.20
+ 153.30
+ 153.40
+ 153.50
+ 153.65
LODLODLODLODLOD
LOD LOD LOD LOD LODLOD
LOD
LOD
LOD
LOD
LOD
LOD LOD LOD
LOD
LOD
LOD
LOD
LOD
LOD
LOD
LOD
LOD
LOD
LOD
LOD
LODLO
D
LOD
LODLOD
LODLOD
LOD
LOD
153
154
154 155156
157
158
155
154
155
154
155
154
155
156
155
153.75 +
153.75 +
PLACE STEEL BLAST PLATESTO PROTECT EXISTINGSIDEWALK & CURBING
X X X X X X X X X X X X X X X X X
XX
XX
XX
XX
XX
XX
XX
XX
C310
STORMWATERMANAGEMENT PLAN
C. SONNEC. SONNEL. WHEELER
NOVEMBER 25, 2019
STORMWATER PLANSCALE: 1"=10'
EXISTING BASEBALL FIELD
EXISTINGASPHALT
AREA
EXISTINGSCHOOLBUILDING
EXISTING TURF AREA
EXISTING TURF AREA
EX. DUGOUT
EX. WATER FOUNTAIN(NOT IN SERVICE)
EXISTING CURB
EXISTINGCURB
EXISTINGTIMBER WALL
EXISTINGCHAINLINK
FENCE
EXISTINGCONCRETESTEPS
EXISTING BOLLARDS(TYP)
8"Ø 45° BEND
TIE TO EXISTINGTRENCH DRAIN(SEE NOTE 1)
12" FIBERGLASS TRENCH DRAINZURN ZF8-12-2004-BG-E8-VP
8"Ø SCH. 40 PVCINV. IN = 154.90INV. OUT = 154.00
REGRADE AREA
LEVEL SPREADER OVERFLOWELEV.=154.00
EXTEND CONCRETECURB TO EDGE OFDRAIN
EXISTINGCHAINLINK
FENCE
NOTES:
1. PIPED STORMWATER FLOWS FROM EXISTING AND PROPOSED TRENCH DRAIN CONNECTIONS SHALL NOT BE PLACED INSERVICE UNTIL AFTER DRY SWALES ARE FULLY STABILIZED AND VEGETATED.
2. BMPS SHALL BE PROTECTED FROM SEDIMENT CONTAMINATION AND SOIL COMPACTION THROUGHOUT THECONSTRUCTION PROCESS. REFER TO EROSION CONTROL PLAN FOR ADDITIONAL INFORMATION.
3. TIMING OF BMP CONSTRUCTION SHALL BE CAREFULLY MANAGED TO MINIMIZE POTENTIAL FOR SEDIMENTCONTAMINATION OR DISCHARGE.
EXISTING SCHOOL BUILDING(LECKIE ELEMENTARY)
DPR II - 4 PARKSSTORMWATERIMPROVEMENTS
FORT GREBLERECREATION CENTERMARTIN LUTHER KING JR. AVE. SW& ELMIRA ST. SWWASHINGTON, DC
Designed:Drawn:
Checked:
Date:Revisions:
SEAL
CECILIA LANEENVIRONMENTAL PROTECTION SPECIALISTWATERSHED PROTECTION DIVISIONDC DEPT. OF ENERGY AND ENVIRONMENT1200 FIRST STREET NE, 5TH FLOORWASHINGTON, DC 20002DESK: (202) 535-2247CELL: (202) 734-9527EMAIL: [email protected]
STORMWATER MANAGEMENT NARRATIVE
1. STORMWATER MANAGEMENT FOR THIS SITE IS PROVIDED BY TWO DRY SWALES (IN SEQUENCE), DISCHARGING OVERFLOWOVER A LEVEL SPREADER AND ACROSS A COMPOST AMENDED AREA, AS SHOWN.
2. STORMWATER FROM TWO ADJACENT IMPERVIOUS AREAS ON THE LECKIE ELEMENTARY SCHOOL SITE SHALL BE CAPTUREDAND PIPED TO THE PROPOSED BMPS, AS SHOWN.
3. EXISTING GREEN STORMWATER FEATURES EXIST ADJACENT TO THE PROJECT SITE, INCLUDING A GREEN ROOF, DRY SWALEAND RAINWATER HARVESTING TANK. THE OVERFLOW FROM THESE FEATURES WILL FLOW TO THE PROPOSED BMPS.
4. REFER TO SHEET C320 FOR DETAILED BMP SIZING AND DESIGN DATA.5. REFER TO SHEET C330 FOR BMP SPECIFICATIONS.6. REFER TO SHEET C340 FOR BMP DETAILS.7. REFER TO LANDSCAPING PLANS FOR PROPOSED TREE BMP LOCATIONS, PLANTING SCHEDULE AND ASSOCIATED DETAILS.
BMP-2DRY
SWALE
BMP-1DRY SWALE
BMP-3DISCONNECT TOAMENDED SOILS
EX. DUGOUT
1:1 SLOPES REINFORCEDWITH 4" GEOGRID
FOUR 8"Ø SCH. 40PVC CULVERTSINV. IN = 154.00INV. OUT = 153.65
CONCRETE TAILWALLTOW ELEV.=155.25
8"Ø SCH. 40 PVCFROM TRENCH DRAIN
CONCRETE WINGWALLTOW ELEV.=155.25
TWO 45° BENDS
22.5° BEND
INV. OUT = 154.00
UNDERDRAIN DISCHARGEINV. ELEV. = 138.50
#2 STONE AT-GRADEOUTLET DIFFUSER
4"Ø SCH. 40 PVCUNDERDRAIN
4"Ø SCH. 40 PVCUNDERDRAIN
4"Ø SCH. 40 PVCUNDERDRAIN
4"Ø CLEAN-OUT& INSPECTION PORTS
4"Ø CLEAN-OUT& INSPECTION PORT
1.5% SLOPE
4"Ø WYE
A
A'
4"Ø CLEANOUT
4"Ø CLEANOUT
POTHOLE EXISTING BURIEDELECTRIC LINE TO DETERMINEDEPTH PRIOR TO DRAIN LINEINSTALLATION
REPLACE FENCING AFTERCOMPLETION OF GRADING
OPERATIONS
8"Ø 1114° BEND
C320
STORMWATER NOTES& CALCULATIONS
C. SONNEC. SONNEL. WHEELER
NOVEMBER 25, 2019
DPR II - 4 PARKSSTORMWATERIMPROVEMENTS
FORT GREBLERECREATION CENTERMARTIN LUTHER KING JR. AVE. SW& ELMIRA ST. SWWASHINGTON, DC
Designed:Drawn:
Checked:
Date:Revisions:
SEAL
CECILIA LANEENVIRONMENTAL PROTECTION SPECIALISTWATERSHED PROTECTION DIVISIONDC DEPT. OF ENERGY AND ENVIRONMENT1200 FIRST STREET NE, 5TH FLOORWASHINGTON, DC 20002DESK: (202) 535-2247CELL: (202) 734-9527EMAIL: [email protected]
2 YEAR STORM ROUTING MODEL RESULTS 15 YEAR STORM ROUTING MODEL RESULTS
EQUATION 3.23: DRY SWALE STORAGE VOLUME
SPACE RESERVED FOR DOEE DATABASESUMMARY SHEETS
SPACE RESERVED FOR DOEE DATABASESUMMARY SHEETS
C330
STORMWATER BMPSPECIFICATIONS
C. SONNEC. SONNEL. WHEELER
NOVEMBER 25, 2019
DPR II - 4 PARKSSTORMWATERIMPROVEMENTS
FORT GREBLERECREATION CENTERMARTIN LUTHER KING JR. AVE. SW& ELMIRA ST. SWWASHINGTON, DC
Designed:Drawn:
Checked:
Date:Revisions:
SEAL
CECILIA LANEENVIRONMENTAL PROTECTION SPECIALISTWATERSHED PROTECTION DIVISIONDC DEPT. OF ENERGY AND ENVIRONMENT1200 FIRST STREET NE, 5TH FLOORWASHINGTON, DC 20002DESK: (202) 535-2247CELL: (202) 734-9527EMAIL: [email protected]
DOEE BIORETENTION/DRY SWALE MATERIAL SPECIFICATIONSTHE FILTER MEDIA OF BIORETENTION PRACTICE CONSISTS OF AN ENGINEERED SOIL MIXTURE THAT HAS BEEN CAREFULLY BLENDED TO CREATE A SOIL MEDIATHAT MAINTAINS LONG TERM PERMEABILITY WHILE ALSO PROVIDING ENOUGH NUTRIENTS TO SUPPORT PLANT GROWTH . THE FINAL FILTER MEDIA SHALLCONSIST OF A WELL-- BLENDED MIXTURE OF MEDIUM TO COARSE SAND, BASE LOAM SOIL (SOIL FINES), AND AN ORGANIC AMENDMENT (COMPOST). THESAND MAINTAINS A DESIRED LONG TERM PERMEABILITY OF THE MEDIA WHILE THE LIMITED AMOUNT OF SOIL FINES AND ORGANIC AMENDMENTS ARECONSIDERED ADEQUATE TO HELP SUPPORT INITIAL PLANT GROWTH . IT IS ANTICIPATED THAT THE GRADUAL INCREASE OF ORGANIC MATERIAL THROUGHNATURAL PROCESSES WILL CONTINUE TO SUPPORT PLANT GROWTH WITHOUT THE NEED TO ADD FERTILIZER, AND THE ROOT STRUCTURE OF MATURINGPLANTS AND THE BIOLOGICAL ACTIVITY OF THE MEDIA WILL MAINTAIN SUFFICIENT LONG TERM PERMEABILITY.
THE FOLLOWING IS THE RECOMMENDED COMPOSITION OF THE THREE MEDIA INGREDIENTS:
SAND (FINE AGGREGATE). SAND SHALL CONSIST OF SILICA-BASED MEDIUM TO COARSE SAND, ANGULAR OR ROUND IN SHAPE. THE MATERIAL SHALL NOT BEDERIVED FROM SERPENTINE AND SHALL BE FREE OF LOAM OR CLAY, DIABASE, SURFACE COATINGS, OR ANY OTHER DELETERIOUS MATERIALS AND SHALLCONTAIN LESS THAN 0.5% MICA BY WEIGHT WHEN TESTED WITH ASTM C295, PETROGRAPHIC EXAMINATION OF AGGREGATES FOR CONCRETE.
ASTM C-33 CONCRETE SAND WILL TYPICALLY MEET THE REQUIREMENTS FOR THE SAND TO BE USED IN FILTER MEDIA. HOWEVER, SOME SAMPLES OF ASTM C-33SAND MAY HAVE TOO HIGH A FRACTION OF FINE SAND AND SILT AND CLAY-SIZED PARTICLES TO ALLOW THE FINAL FILTER MEDIA PARTICLE SIZE DISTRIBUTIONREQUIREMENTS TO BE MET. IN GENERAL, COARSER GRADATIONS OF ASTM C-33 WILL BETTER MEET THE FILTER MEDIA PARTICLE SIZE DISTRIBUTION ANDHYDRAULIC CONDUCTIVITY REQUIREMENTS.
ANY OTHER MATERIALS, SUCH AS LIMESTONE-BASED SANDS OR CRUSHED GLASS, SHALL MEET THE REQUIRED PARTICLE SIZE DISTRIBUTIONS AND BEDEMONSTRATED AS ADEQUATELY DURABLE WHEN TESTED BY AASHTO T-103 OR T-104.
BASE LOAM SOIL. BASE LOAM SOIL IS GENERALLY DEFINED AS THE COMBINATION 0F SAND-SIZED MATERIAL, FINES (SILT AND CLAY), AND ANY ASSOCIATED SOILORGANIC MATTER. SINCE THE OBJECTIVE OF THE SPECIFICATION IS TO CAREFULLY ESTABLISH THE PROPER BLEND OF THESE INGREDIENTS, THE DESIGNER (ORCONTRACTOR OR MATERIALS SUPPLIER) MUST CAREFULLY SELECT THE TOPSOIL SOURCE MATERIAL IN ORDER TO NOT EXCEED THE AMOUNT OF ANY ONEINGREDIENT.
GENERALLY, A NATURAL LOAMY SAND, SANDY LOAM, OR LOAM (PER THE USDA TEXTURAL TRIANGLE). A-HORIZON TOPSOIL FREE OF SUBSOIL, LARGE STONES,EARTH CLODS, STICKS, STUMPS, CLAY LUMPS, ROOTS, VIABLE NOXIOUS WEED SEED, PLANT PROPAGULES, BRUSH, OR OTHER OBJECTION ABLE, EXTRANEOUSMATTER OR DEBRIS IS SUITABLE FOR THE BASE LOAM (SOIL FINES) SOURCE MATERIAL.
ORGANIC AMENDMENTS. ORGANIC AMENDMENTS SHALL CONSIST OF STABLE, WELL-DECOMPOSED, NATURAL, CARBON-CONTAINING ORGANIC MATERIALS SUCHAS PEAT MOSS, HUMUS, OR YARD WASTE (CONSISTENT WITH THE MATERIAL SPECIFICATIONS FOUND IN APPENDIX J). THE MATERIAL SHALL BE FREE OF DEBRISSUCH AS PLASTICS, METAL, CONCRETE, STONES LARGER THAN 1/2 INCH, LARGER BRANCHES AND ROOTS, AND WOOD CHIPS OVER 1 INCH IN LENGTH OR DIAMETER.
COMPLETE FILTER MEDIA. THE COMPLETE FILTER MEDIA SOIL MI X SHALL CONSIST OF A PUG MILLED OR MECHANICALLY BLENDED MIX OF THE THREE SOURCEMATERIALS RESULTING IN A FILTER MEDIA THAT MEETS THE FOLLOWING PARTICLE SIZE COMPOSITION, AS WELL AS THE GRAIN SIZE DISTRIBUTION INDICATED INTABLE 3.19:· 80% - 90% SAND (AT LEAST 75% OF WHICH MUST BE CLASSIFIED AS COARSE OR VERY COARSE SAND)· 10% - 20% SOIL FINES (SILT AND CLAY)· MAXIMUM 10% CLAY
NOTE: THE ABOVE PERCENTAGES ARE BASED ON WEIGHT RATHER THAN VOLUME. THE PARTICLE SIZE ANALYSIS MUST BE CONDUCTED ON THE MINERAL FRACTIONONLY OR FOLLOWING APPROPRIATE TREATMENTS TO REMOVE ORGANIC MATTER BEFORE PARTICLE SIZE ANALYSIS. THE DDOT GREEN INFRASTRUCTURESTANDARDS INCLUDE A BIORETENTION SOIL SPECIFICATION BASE ON VOLUME, NOT WEIGHT, SO THE PERCENTAGES LISTED THERE DO NOT MATCH THOSE LISTEDHERE, EVEN THOUGH THE TWO SPECIFICATIONS ARE SUBSTANTIALLY EQUIVALENT.
TABLE 3.17 SAND SIZING CRITERIA FILTER MEDIA GRAIN SIZE DISTRIBUTION
THE FILTER MEDIA SHALL ALSO MEET THE FOLLOWING CRITERIA:
· ORGANIC CONTENT SHALL BE BETWEEN 3.0% AND 5.0% BY WEIGHT· pH SHALL BE BETWEEN 6.0 AND 7.2· CATION EXCHANGE CAPACITY (CEC) SHALL BE A MINIMUM OF 5 MEQ/100G OR CMOL/KG· PHOSPHOROUS CONTENT SHALL MEET ONE OF THE FOLLOWING:·· P-INDEX BETWEEN 10 AND 30·· 5-15 MG/KG MEHLICH 1 EXTRACTION
·· 18-40 MW/KG MEHLICH 3 EXTRACTION; AND
· SOLUBLE SALTS SHALL BE LESS THAN 500 PPM / 0.5 MMHOS/CM
NOTES:
1. P-INDEX IS AN AGRONOMIC TEST USED IN NORTH CAROLINA TO INDICATE THE POTENTIAL FOR P LEACHING FROM SOIL. THE TEST METHOD HAS BEENREVISED TO ADD CONCENTRATION TO FACILITATE LOCAL LAB TESTING. THE VALUE OF THE P-INDEX IS THE CORRELATION BETWEEN THE CEC AND PCONCENTRATIONS: HIGHER CEC INDICATES GREATER ADSORPTION SITES WITHIN THE MEDIA, THUS INCREASING THE ABILITY TO FIX P WITHIN THE SOIL,THEREBY ALLOWING HIGHER CONCENTRATIONS WITHOUT LEACHING. WHILE P-INDEX MAY BE A BETTER OVERALL REPRESENTATION OF P, THE TESTMETHOD MAY NOT BE READILY AVAILABLE.
2. TESTS FOR ORGANIC CONTENT, CEC, SOLUBLE SALTS, AND PH ARE REFERENCED TO BE IN ACCORDANCE WITH RECOMMENDED SOIL TESTING PROCEDURESFOR THE NORTHEASTERN UNITED STATES, CURRENT EDITION, NORTHEASTERN REGIONAL PUBLICATION NO. 493.
IN CASES WHERE GREATER REMOVAL OF SPECIFIC POLLUTANTS IS DESIRED, ADDITIVES WITH DOCUMENTED POLLUTANT REMOVAL BENEFITS, SUCH AS WATERTREATMENT RESIDUALS, ALUM , IRON , OR OTHER MATERIALS, MAY BE INCLUDED IN THE FILTER MEDIA IF ACCEPTED BY DOEE.
SIGNAGE. BIORETENTION UNITS IN HIGHLY URBANIZED AREAS SHOULD BE STENCILED OR OTHERWISE PERMANENTLY MARKED TO DESIGNATE IT AS A STRUCTURALBMP. THE STENCIL OR PLAQUE SHOULD INDICATE (1) ITS WATER QUALITY PURPOSE, (2) THAT IT MAY POND BRIEFLY AFTER A STORM, AND (3) THAT IT IS NOT TO BEDISTURBED EXCEPT FOR REQUIRED MAINTENANCE.
DOEE CONSTRUCTION SPECIFICATIONS3.9.6 OPEN CHANNEL CONSTRUCTION SEQUENCE
OPEN CHANNEL (DRY SWALE) INSTALLATION. THE FOLLOWING IS A TYPICAL CONSTRUCTION SEQUENCE TOPROPERLY INSTALL DRY SWALE OPEN CHANNELS. THESE STEPS MAY BE MODIFIED TO REFLECT DIFFERENT SITECONDITIONS OR DESIGN VARIATIONS:
STEP 1: PROTECTION DURING CONSTRUCTION. IDEALLY, OPEN CHANNELS SHOULD REMAIN OUTSIDE THE LIMITSOF DISTURBANCE DURING CONSTRUCTION TO PREVENT SOIL COMPACTION BY HEAVY EQUIPMENT. HOWEVER,THIS IS SELDOM PRACTICAL, GIVEN THAT THE CHANNELS ARE A KEY PART OF THE DRAINAGE SYSTEM AT MOSTSITES. IN THESE CASES, TEMPORARY SOIL EROSION AND SEDIMENT CONTROL MEASURES SHOULD GE INTEGRATEDINTO THE SWALE DESIGN THROUGHOUT THE CONSTRUCTION SEQUENCE. SPECIFICALLY, BARRIERS SHOULD BEINSTALLED AT KEY CHECK DAM LOCATIONS, AND EROSION CONTROL FABRIC SHOULD BE USED TO PROTECT THECHANNEL. DRY SWALES THAT LACK UNDERDRAINS (AND RELY ON INFILTRATION) MUST BE FULLY PROTECTED BYSILT FENCE OR CONSTRUCTION FENCING TO PREVENT COMPACTION BY HEAVY EQUIPMENT DURINGCONSTRUCTION.STEP 2: INSTALLATION. INSTALLATION MAY ONLY BEGIN AFTER THE ENTIRE CDA HAS BEEN STABILIZED WITHVEGETATION. ANY ACCUMULATION OF SEDIMENTS THAT DOES OCCUR WITHIN THE CHANNEL MUST BE REMOVEDDURING THE FINAL STAGES OF GRADING TO ACHIEVE THE DESIGN CROSS SECTION. SOIL EROSION AND SEDIMENTCONTROLS FOR CONSTRUCTION OF THE CHANNEL MUST BE INSTALLED AS SPECIFIED IN THE SOIL EROSION ANDSEDIMENT CONTROL PLAN. STORMWATER FLOWS MUST NOT BE PERMITTED INTO THE CHANNEL UNTIL THEBOTTOM AND SIDE SLOPES ARE FULLY STABILIZED.STEP 3: GRADING. GRADE THE CHANNELS TO FINAL DIMENSIONS SHOWN ON THE PLAN. EXCAVATORS ORBACKHOES SHOULD WORK FROM THE SIDES TO GRADE AND EXCAVATE THE OPEN CHANNELS TO THEAPPROPRIATE DESIGN DIMENSIONS. BOTTOM (SUBGRADE) SHOULD BE RIPPED, ROTOTILLED OR OTHERWISESCARIFIED TO PROMOTE BETTER INFILTRATION.STEP 4: PLACING STONE LAYER AND MEDIA. PLACE AN ACCEPTABLE GEOTEXTILE FABRIC ON THE UNDERGROUND(EXCAVATED) SIDES OF THE DRY SWALE WITH A MINIMUM 6-INCH OVERLAP. PLACE THE STONE NEEDED FORSTORAGE LAYER OVER THE FILTER BED. ADD THE PERFORATED UNDERDRAIN PIPE. ADD THE REMAINING STONEJACKET, AND THEN PACK NO 57 STONE (CLEAN DOUBLE-WASHED) TO 3-INCHES ABOVE THE TOP OF THEUNDERDRAIN, AND THEN ADD 3-INCHES OF PEA GRAVEL AS A FILTER LAYER. ADD THE FILTER MEDIA IN 12-INCHLIFTS UNTIL THE DESIRED TOP ELEVATIONS OF THE DRY SWALE ARE ACHIEVED. WATER THOROUGHLY AND ADDADDITIONAL MEDIA AS NEEDED WHERE SETTLEMENT HAS OCCURRED.STEP 5: INSTALL CHECK DAMS (WHERE REQUIRED). INSTALL CHECK DAMS, CULVERTS AND INTERNALPRETREATMENT FEATURES AS SHOWN ON THE PLAN. FILL MATERIAL USED TO CONSTRUCT CHECK DAMS SHOULDBE PLACED IN 8- TO 12-INCH LIFTS AND COMPACTED TO PREVENT SETTLEMENT. THE TOP OF EACH CHECK DAMMUST BE CONSTRUCTED LEVEL AT THE DESIGN ELEVATION.STEP 6: HYDRO-SEED. HYDRO-SEED THE BOTTOM AND BANKS OF THE OPEN CHANNELS, AND PEG IN EROSIONCONTROL FABRIC OR BLANKET WHERE NEEDED. AFTER INITIAL PLANTING, A BIODEGRADABLE EROSION CONTROLFABRIC SHOULD BE USED, CONFORMING TO THE DISTRICT OF COLUMBIA SOIL EROSION AND SEDIMENT CONTROLSTANDARDS AND SPECIFICATIONS.STEP 7: PLANT. PLANT LANDSCAPING MATERIAL AS SHOWN IN THE LANDSCAPING PLANS, AND WATER THEMWEEKLY DURING THE FIRST 2 MONTHS. THE CONSTRUCTION CONTRACT SHOULD INCLUDE A CARE ANDREPLACEMENT WARRANTY TO ENSURE THAT VEGETATION IS PROPERLY ESTABLISHED AND SURVIVES DURING THEFIRST GROWING SEASON FOLLOWING CONSTRUCTION.STEP 8: FINAL INSPECTION. CONDUCT THE FINAL CONSTRUCTION INSPECTION USING A QUALIFIED PROFESSIONALAND DEVELOP A PUNCH LIST FOR FACILITY ACCEPTANCE.CONSTRUCTION SUPERVISION. SUPERVISION DURING CONSTRUCTION IS RECOMMENDED TO ENSURE THAT THEOPEN CHANNELS ARE BUILT IN ACCORDANCE WITH THE APPROVED DESIGN AND THIS SPECIFICATION. QUALIFIEDINDIVIDUALS SHOULD USE DETAILED INSPECTION CHECKLISTS THAT INCLUDE SIGN-OFFS AT CRITICAL STAGES OFCONSTRUCTION, TO ENSURE THAT THE CONTRACTOR'S INTERPRETATION OF THE PLAN IS CONSISTENT WITH THEDESIGNER'S INTENTIONS.DOEE'S CONSTRUCTION PHASE INSPECTION CHECKLIST CAN BE FOUND IN APPENDIX K, “CONSTRUCTIONINSPECTION CHECKLISTS”.
3.9.7 OPEN CHANNEL MAINTENANCE CRITERIA
MAINTENANCE IS A CRUCIAL AND REQUIRED ELEMENT THAT ENSURES THE LONG-TERM PERFORMANCE OFOPEN CHANNELS. DRY SWALE DESIGNS MAY REQUIRE REGULAR PRUNING AND MANAGEMENT OF TREES ANDSHRUBS. THE SURFACE OF DRY SWALE FILTER BEDS CAN BECOME CLOGGED WITH FINE SEDIMENT OVER TIME,BUT THIS CAN BE ALLEVIATED THROUGH CORE AERATION OR DEEP TILLING FOR THE FILTER BED. ADDITIONALEFFORT MAY BE NEEDED TO REPAIR CHECK DAMS, STABILIZE INLET POINTS, AND REMOVE DEPOSITEDSEDIMENT FROM PRETREATMENT CELLS. TABLE 3.38 PROVIDES A SCHEDULE OF TYPICAL MAINTENANCEREQUIREMENTS FOR OPEN CHANNELS.
MAINTENANCE INSPECTIONS. ANNUAL INSPECTIONS BY A QUALIFIED PROFESSIONAL ARE USED TOTRIGGER MAINTENANCE OPERATIONS, SUCH AS SEDIMENT REMOVAL, SPOT REVEGETATION, ANDINLET STABILIZATION.
DOEE'S MAINTENANCE INSPECTION CHECKLISTS FOR BIORETENTION AREAS AND THE MAINTENANCESERVICE COMPLETION INSPECTION FORM CAN BE FOUND IN APPENDIX L, “MAINTENANCE INSPECTIONCHECKLISTS.”
XX
XX
XX
XX
XX
XX
C340
STORMWATERDETAILS
C. SONNEC. SONNEL. WHEELER
NOVEMBER 25, 2019
DRY SWALE LEVEL-SECTION A-A'SCALE: 12"=1'
PONDING DEPTH VARIESALONG SWALEELEV. = 154.00
GRADE
18" BIORETENTION MIX
3" PEA GRAVEL
9" #57 STONE
CONCRETE LEVEL SPREADER WEIROVERFLOW ELEV. = 154.00
18" WIDERIVER STONE SPLASH PAD
DRY SWALE - OVERFLOW WEIR SECTIONSCALE: 34"=1'
18" BIORETENTION MIX
3" PEA GRAVEL
9" #57 STONE4"Ø PVC UNDERDRAIN
DPR II - 4 PARKSSTORMWATERIMPROVEMENTS
FORT GREBLERECREATION CENTERMARTIN LUTHER KING JR. AVE. SW& ELMIRA ST. SWWASHINGTON, DC
Designed:Drawn:
Checked:
Date:Revisions:
SEAL
CECILIA LANEENVIRONMENTAL PROTECTION SPECIALISTWATERSHED PROTECTION DIVISIONDC DEPT. OF ENERGY AND ENVIRONMENT1200 FIRST STREET NE, 5TH FLOORWASHINGTON, DC 20002DESK: (202) 535-2247CELL: (202) 734-9527EMAIL: [email protected]
4:1 SLOPE (TYP); 3:1 MAX
NON-WOVENGEOTEXTILE
15-YEAR STORM OVERFLOW (3.11 CFS)ELEV. = 154.26
SPLASH PAD ALONGDOWNSTREAM SIDE OF WEIR
ELEV. = 153.75
8'6"
6"
1% SLOPE
2-YEAR STORM OVERFLOW (0.55 CFS)ELEV. = 154.08
TIE GRADE TO ENDSOF CONCRETE WEIR(TYP)
6"
DRY SWALE - OVERFLOW WEIR ELEVATION VIEWSCALE: 34"=1'
PIPE PROFILE - UNDERDRAINSCALE: 1"=20' HORIZ; 1"=2' VERT'
EXISTING GRADE
PROPOSED GRADE (TYP)PONDING ELEV. = 154.00
FOUR (4) 8"Ø SCH. 40 PVC CULVERTSINV. IN = 154.00INV. OUT = 153.65
1:1 SLOPE WITH4" GEOGRID REINFORCEMENT
4"Ø SCH. 40 PERF.UNDERDRAIN
BIORETENTION MEDIA(TYP)
4"Ø SCH. 40 SOLIDUNDERDRAIN
3' LONG X 12" WIDE X 12" DEEPSTONE OUTLET DIFFUSER
SOLID PIPE
DRAINAGE STONE(TYP)
25 LF @ 1% 60 LF @ 0% (FLAT)
162 LF @ 1.5%
4"Ø
SCH
. 40
PVC
11.2
5° B
END
STA
. 0+4
2.1
4"Ø
SCH
. 40
PVC
45° B
END
STA
. 0+8
4.2
4"Ø
SCH
. 40
PVC
WYE
STA
. 0+8
5.5
4"Ø
SCH
. 40
PVC
WYE
STA
. 0+9
4.8
END
OF
PIPE
STA
. 2+4
5.3
155
156
157
154
144
145
146
147
148
149
153
152
151
150
155
156
157
154
144
145
146
147
148
149
153
152
151
150
STA. 0+00 STA. 0+50 STA. 1+00 STA. 1+50 STA. 2+00 STA. 2+50PIPE PROFILE - 8"Ø LINE FROM EXIST TRENCH DRAIN
SCALE: 1"=20' HORIZ; 1"=2' VERT'
EXISTING GRADE
PROPOSED GRADE (TYP)
EXTENDED 6"CONCRETE CURB
TIE TO EXISTING TRENCH DRAINWITH 8"Ø SCH. 40 PVC PIPE (SEE NOTE 1)
DRY SWALE(BMP-1)
181 LF @ 1%
8"Ø
SCH
. 40
PVC
22.5
° BEN
D S
TA. 0
+05.
2
EXIS
TIN
G BU
RIED
ELE
CTRI
C - D
EPTH
UN
KNO
WN
STA
. 0+0
6.4
8"Ø
SCH
. 40
PVC
45° B
END
STA
. 0+3
7.1
8"Ø
SCH
. 40
PVC
22.5
° BEN
D S
TA. 1
+57.
2
155
156
157
154
146
147
148
149
153
152
151
150
STA. 0+00 STA. 0+50 STA. 1+00 STA. 1+50 STA. 2+00
160
161
162
159
158
155
156
157
154
146
147
148
149
153
152
151
150
160
161
162
159
158
8"Ø
SCH
. 40
PVC
45° B
END
STA
. 1+7
5.9
8"Ø
SCH
. 40
PVC
45° B
END
STA
. 1+7
7.0
NOTES:1. INVERT OUT FROM END OF EXISTING TRENCH DRAIN =
159.00. USE VERTICAL WYE AND 90° FITTINGS TO DROPPIPE TO INVERT ELEV.=155.81 AND PROVIDE CLEANOUT.
2. CONTRACTOR MAY USE A LONG-SWEEP 90° BEND IN LIEUOF TWO 45° BENDS SHOWN, AS AN ALTERNATIVE.
CONCRETE WINGWALL
NOTE 2
8"Ø CLEANOUT
PIPE PROFILE - 8"Ø LINE FROM NEW TRENCH DRAINSCALE: 1"=20' HORIZ; 1"=2' VERT'
EXISTING GRADE
PROPOSED GRADE (TYP)
PROPOSED TRENCH DRAIN CONNECTIONPROVIDE WYE, VERTICAL 90° BEND
& CLEANOUT8"Ø SCH. 40 PVC INV. OUT = 154.90
DRY SWALE(BMP-1)
181 LF @ 4.5%
155
156
157
154
153
152
151
150STA. 0+00 STA. 0+50
160
161
162
159
158
CONCRETE WINGWALL
EXISTING GRADE
EXISTING ASPHALT(PATCH)
INV. OUT=154.00 NEW TRENCH DRAIN CONNECTION DETAILSCALE: 34"=1'
12" FIBERGLASS TRENCH DRAINW/GALVANIZED GRATEZURN MODEL ZF8-2004-BG-E8-VPTOP ELEVATION = 155.80
8" SCH. 40 PVC WYE
FLOW TO DRY SWALE(BMP-1)
EXISTING CONCRETE WALKWAY(TO REMAIN) 8"x 4" REDUCING BUSHING
4" 90° VERTICAL BEND& 4" CLEANOUT
INV. OUT=154.90
8" SCH. 40 PVC
9"
SLOPE ASPHALT PATCHTOWARD TRENCH DRAIN TOP OF WEIR
ELEV. = 154.00
INV. OUT = 148.5
L100
LANDSCAPING PLAN
G. FALCONG. FALCONL. WHEELER
NOVEMBER 25, 2019
DPR II - 4 PARKSSTORMWATERIMPROVEMENTS
FORT GREBLERECREATION CENTERMARTIN LUTHER KING JR. AVE. SW& ELMIRA ST. SWWASHINGTON, DC
Designed:Drawn:
Checked:
Date:Revisions:
SEAL
CECILIA LANEENVIRONMENTAL PROTECTION SPECIALISTWATERSHED PROTECTION DIVISIONDC DEPT. OF ENERGY AND ENVIRONMENT1200 FIRST STREET NE, 5TH FLOORWASHINGTON, DC 20002DESK: (202) 535-2247CELL: (202) 734-9527EMAIL: [email protected]
L150
LANDSCAPING PLANDRY SWALES
G. FALCONG. FALCONL. WHEELER
NOVEMBER 25, 2019
DPR II - 4 PARKSSTORMWATERIMPROVEMENTS
FORT GREBLERECREATION CENTERMARTIN LUTHER KING JR. AVE. SW& ELMIRA ST. SWWASHINGTON, DC
Designed:Drawn:
Checked:
Date:Revisions:
SEAL
CECILIA LANEENVIRONMENTAL PROTECTION SPECIALISTWATERSHED PROTECTION DIVISIONDC DEPT. OF ENERGY AND ENVIRONMENT1200 FIRST STREET NE, 5TH FLOORWASHINGTON, DC 20002DESK: (202) 535-2247CELL: (202) 734-9527EMAIL: [email protected]
L200
LANDSCAPING NOTES& DETAILS
C. SONNEC. SONNEL. WHEELER
NOVEMBER 25, 2019
DPR II - 4 PARKSSTORMWATERIMPROVEMENTS
FORT GREBLERECREATION CENTERMARTIN LUTHER KING JR. AVE. SW& ELMIRA ST. SWWASHINGTON, DC
Designed:Drawn:
Checked:
Date:Revisions:
SEAL
CECILIA LANEENVIRONMENTAL PROTECTION SPECIALISTWATERSHED PROTECTION DIVISIONDC DEPT. OF ENERGY AND ENVIRONMENT1200 FIRST STREET NE, 5TH FLOORWASHINGTON, DC 20002DESK: (202) 535-2247CELL: (202) 734-9527EMAIL: [email protected]