STREET - City of Napa

City of Napa Standard Plans January 2022

- 27 -

STANDARD PLANS

STORMWATER QUALITY

City of Napa Standard Plans January 2022

- 28 -

INTENTIONALLY LEFT BLANK

VARIES

6"

DESIGN NOTES1. ADDITIONAL DESIGN GUIDANCE PROVIDED IN BIORETENTION FACILITY FIGURE 4.1 & 4.2

OF THE BASMAA POST-CONSTRUCTION MANUAL.

2. OVERFLOW STRUCTURE REQUIRED FOR IN-LINE SYSTEMS WITHOUT OVERFLOW BYPASS,SEE CITY STD. SWQ-140.

3. PROVIDE SPOT ELEVATIONS AT INLETS ON CIVIL PLANS (FE, OE, GIE, SIE). SEE CITY STD.SWQ-120.

4. EDGE CONDITION WILL VARY FOR NEW AND RETROFIT PROJECTS. CURB, WALL, ANDSIDEWALK DETAILS MAY BE MODIFIED FOR PROJECT BY CIVIL AND GEOTECHNICALENGINEERS AND APPROVED BY PUBLIC WORKS DEPARTMENT.

5. IF CHECK DAMS ARE NEEDED, SEE CONCRETE CHECK DAM CITY STD. SWQ-131.

6. IF CALTRANS CLASS 2 PERMEABLE IS NOT AVAILABLE, SUBSTITUTE CLASS 3 PERMEABLEWITH AN OVERLYING 3" DEEP LAYER OF 3/4" (NO. 4) OPEN-GRADED AGGREGATE.(VERIFY WITH CITY OF NAPA CONSTRUCTION DIVISION)

7. BIORETENTION SOIL MEDIA (BSM) SPECIFICATION PER BASMAA POST-CONSTRUCTIONMANUAL.

8. PLANTING DESIGN AND IRRIGATION PER BASMAA POST-CONSTRUCTION MANUAL -PLANT MATRIX APPENDIX F.

9. MULCH (OPTIONAL) PER BASMAA POST-CONSTRUCTION MANUAL - PLANT MATRIXAPPENDIX F.

10. LOCATE ENERGY DISSIPATION COBBLE ONLY AS SPECIFIED IN INLET DETAILS - AVOIDDECORATIVE USE.

CONSTRUCTION NOTES1. SCARIFY SUBGRADE BEFORE INSTALLING

BIORETENTION AREA AGGREGATE AND BSM.

2. FACILITY EXCAVATION TO ALLOW FORSPECIFIED SOIL AND MULCH DEPTHS TOACHIEVE FINISHED ELEVATIONS ON CIVILPLANS.

3. COMPACT EACH 6" LIFT OF BSM WITHLANDSCAPE ROLLER OR BY LIGHTLY WETTING.IF WETTING, ALLOW TO DRY OVERNIGHTBEFORE PLANTING.

4. DO NOT WORK WITHIN BIORETENTION AREADURING RAIN OR UNDER WET CONDITIONS.

5. KEEP HEAVY MACHINERY OUTSIDEBIORETENTION AREA LIMITS.

CURB INLET PER CITY STD.SWQ-120, GUTTER INLET ELEV. (GIE)

CURB AND GUTTERPER CITY STD. SWQ-110

MAINTAIN 6" BENCHNATIVE SOIL FOR

SUPPORT OF ADJACENTSIDEWALK/ROAD

(TYPICAL)

30 ML LINER MAY BEREQUIRED AT STREET

OVERFLOW STRUCTURE ELEV. (OE)

4" MIN. EXPOSED WALL HEIGHT

SIDEWALK DRAINAGENOTCH 1" BELOWSIDEWALK, SLOPED TOFACILITY, SIDEWALK INLETELEV. (SIE)

DEEP CURB PERCITY STD. SWQ-111

CALTRANS CLASS 2PERMEABLE 12" MIN. DEPTH

PER PROJECT REQUIREMENTS

SIDEWALKSTREET

FINISHED ELEVATION (FE)

PLACE BSM IN 6" LIFTSPER NOTES

DO NOT USE FILTER FABRICBETWEEN BSM AND AGGREGATE

SIDEWALK PER CITYSTANDARDS

MULCH LAYER

BIORETENTIONSOIL MEDIA

(BSM)18" MIN

EXISTINGSUBGRADE

DRAWN BY:APPROVAL DATE:SCALE:REVISED DATE:

CHECKED BY:APPROVED BY:DRAWING NO.

CITY OF NAPA PUBLIC WORKS DEPARTMENT

06/2018STREET BIORETENTION FACILITY(FLAT/PLANTER, NO ON-STREET PARKING, SIDEWALK, WITHOUT UNDERDRAIN) NONE

TCW

SWQ-100

JBLLFM

6" MIN.PONDING DEPTH

VARIES

EXISTINGSUBGRADE

6"

OVERFLOW STRUCTURE ELEV. (OE)


SIDEWALK DRAINAGE NOTCH1" BELOW SIDEWALK, SLOPEDTO FACILITY, SIDEWALK INLETELEV. (SIE)

DEEP CURB PER CITY STD.SWQ-111

SIDEWALK

STREET


PLACE BSM IN 6" LIFTS PERNOTES

DO NOT USE FILTER FABRICBETWEEN BSM AND AGGREGATE.

SIDEWALK PER CITYSTANDARDS

18" M

IN

CURB INLET WITH GRATE PER CITY STD.SWQ-123, GUTTER INLET ELEV. (GIE)

CURB AND GUTTERPER CITY STD. SWQ-110


AGGREGATE 12" MIN. DEPTHPER PROJECT REQUIREMENTS

MULCH LAYER(OPTIONAL)


(BSM)

WIDTH PER CITYREQUIREMENTS


MAINTAIN 6" BENCH NATIVESOIL FOR SUPPORT OF

ADJACENT SIDEWALK/ROAD(TYP.)



2. OVERFLOW STRUCTURE REQUIRED FOR IN-LINE SYSTEMS WITHOUT OVERFLOW BYPASS,SEE CITY STD. SWQ-140.


4. EDGE CONDITION WILL VARY FOR NEW AND RETROFIT PROJECTS. CURB, WALL, ANDSIDEWALK DETAILS MAY BE MODIFIED FOR PROJECT BY CIVIL AND GEOTECHNICALENGINEERS AND APPROVED BY PUBLIC WORKS DEPARTMENT.

5. IF CHECK DAMS ARE NEEDED, SEE CONCRETE CHECK DAM CITY STD. SWQ-131.



8. PLANTING DESIGN AND IRRIGATION PER BASMAA POST-CONSTRUCTION MANUAL -PLANT MATRIX APPENDIX F.

9. MULCH (OPTIONAL) PER BASMAA POST-CONSTRUCTION MANUAL - PLANT MATRIXAPPENDIX F.



BIORETENTION AREA AGGREGATE AND BSM.








STREET BIORETENTION FACILITY(FLAT/PLANTER, ON-STREET PARKING, SIDEWALK, WITHOUT UNDERDRAIN)

TCW

SWQ-101

JBL06/2018NONE

LFM

24"

CONSTRUCTION NOTESDESIGN NOTES1. ADDITIONAL DESIGN GUIDANCE PROVIDED IN BIORETENTION FACILITY FIGURE 4.1 &

4.2 OF BASMAA POST-CONSTRUCTION MANUAL.

2. OVERFLOW STRUCTURE REQUIRED FOR IN-LINE SYSTEMS WITHOUT OVERFLOWBYPASS, PER CITY STD. SWQ-140.

3. PROVIDE SPOT ELEVATIONS AT INLETS ON CIVIL PLANS (FE, OE, GIE, SE). SEE CITYSTD. SWQ-121 AND SWQ-122.

4. MAX. LONGITUDINAL SLOPE 6% WITH CHECK DAMS. SEE CITY STD. SWQ-130,SWQ-131.

5. EDGE CONDITION WILL VARY FOR NEW AND RETROFIT PROJECTS. CURB ANDSIDEWALK DETAILS MAY BE MODIFIED FOR PROJECT BY CIVIL AND GEOTECHNICALENGINEERS AND APPROVED BY PUBLIC WORKS DEPARTMENT.

6. IF CALTRANS CLASS 2 PERMEABLE IS NOT AVAILABLE, SUBSTITUTE CLASS 3PERMEABLE WITH AN OVERLYING 3" DEEP LAYER OF 3/4" (NO. 4) OPEN-GRADEDAGGREGATE. (VERIFY WITH CITY OF NAPA CONSTRUCTION DIVISION)

7. BIORETENTION SOIL MEDIA (BSM) SPECIFICATION PER BASMAAPOST-CONSTRUCTION MANUAL.

8. PLANTING DESIGN AND IRRIGATION PER BASMAA POST-CONSTRUCTION MANUALAPPENDIX F - PLANT MATRIX.

9. MULCH (OPTIONAL) PER BASMAA POST-CONSTRUCTION MANUAL APPENDIX F -PLANT MATRIX.


VARIES

BOTTOM WIDTH MIN.


ADJACENT SIDEWALK/ROAD(TYPICAL)


18" M

IN

DO NOT USE FILTERFABRIC BETWEEN BSMAND AGGREGATE.

SIDEWALK ELEVATION (SE)

PLACE BSM IN 6" LIFTS,PER NOTES

SIDEWALKSTREET

OVERFLOWSTRUCTURE ELEV.(OE)

CURB INLET PER CITY STD.SWQ-121 AND SWQ-122, GUTTER

INLET ELEV. (GIE)

1. SCARIFY SUBGRADE BEFORE INSTALLINGBIORETENTION AREA AGGREGATE AND BSM.





EDGE CONDITION WILLVARY FOR NEW/RETROFIT,PER CITY STD SWQ-111,SWQ-112, AND SWQ-113

6"

3:1 MAX. W. SHELF

6" MIN.PONDING

CURB AND GUTTER PERCITY STD. SWQ-110


MULCH LAYER

CALTRANS CLASS 2 PERMEABLE 12" MIN.DEPTH PER PROJECT REQUIREMENTS

4:1 MAX. NO SHELF

12"

2% SHELF(TYP.)

EXISTINGSUBGRADE


(BSM)




STREET BIORETENTION FACILITY(SLOPED SIDED, NO ON-STREET PARKING, SIDEWALK, WITHOUT UNDERDRAIN)

TCW

SWQ-102

JBL06/2018NONE

LFM

SIDEWALKSTREET

CONSTRUCTION NOTES

24"



2. OVERFLOW STRUCTURE REQUIRED FOR IN-LINE SYSTEMS WITHOUT OVERFLOW BYPASS,CITY STD. SWQ-140.

3. PROVIDE SPOT ELEVATIONS AT INLETS ON CIVIL PLANS (FE, OE, GIE, SE). SEE CITY STD.SWQ-121.

4. MAX. LONGITUDINAL SLOPE 6% WITH CHECK DAMS. SEE CITY STD. SWQ-130 ANDSWQ-131.




8. PLANTING DESIGN AND IRRIGATION PER BASMAA POST-CONSTRUCTION MANUALAPPENDIX F - PLANT MATRIX.

9. MULCH (OPTIONAL) PER BASMAA POST-CONSTRUCTION MANUAL APPENDIX F - PLANTMATRIX.


VARIES

BOTTOM WIDTH MIN.




DO NOT USE FILTERFABRIC BETWEEN BSMAND AGGREGATE.

CALTRANS CLASS 2PERMEABLE 12" MIN. DEPTHPER PROJECT REQUIREMENTS

SIDEWALK ELEVATION(SE)



CURB INLETCITY STD. SWQ-121,

GUTTER INLET ELEV. (GIE)

1. SCARIFY SUBGRADE BEFORE INSTALLINGBIORETENTION AREA AGGREGATE ANDBSM.


3. COMPACT EACH 6" LIFT OF BSM WITHLANDSCAPE ROLLER OR BY LIGHTLYWETTING. IF WETTING, ALLOW TO DRYOVERNIGHT BEFORE PLANTING.

4. DO NOT WORK WITHIN BIORETENTIONAREA DURING RAIN OR UNDER WETCONDITIONS.


EDGE CONDITION WILLVARY FOR NEW/RETROFIT,CITY STD. SWQ-111,SWQ-112 AND SWQ-113

18" MIN6"

6" MIN.PONDING

CURB AND GUTTERCITY STD. SWQ-110


MULCH LAYER

12"

2% SHELF(TYP.)

3:1 MAX. W. SHELF

4:1 MAX. NO SHELF


(BSM)

EXISTINGSUBGRADE



STREET BIORETENTION FACILITY(SLOPED SIDED, WITH ON-STREET PARKING, SIDEWALK, WITHOUT UNDERDRAIN)

TCW

SWQ-103

JBLDRAWN BY:APPROVAL DATE:SCALE:REVISED DATE:

06/2018NONE

LFM

EXISTINGSUBGRADE

DESIGN NOTES1. ADDITIONAL DESIGN GUIDANCE PROVIDED IN BIORETENTION FACILITY FIGURE 4.1 &

4.2 OF THE BASMAA POST-CONSTRUCTION MANUAL.



4. EDGE CONDITION WILL VARY FOR PARKING LOT PROJECTS. SEE PARKING LOT EDGEOPTIONS DETAILS SWQ-114. CURB AND FLUSH EDGE DETAILS MAY BE MODIFIED FORPROJECT BY CIVIL AND GEOTECHNICAL ENGINEERS AND APPROVED BY PUBLICWORKS DEPARTMENT.

5. IF CHECK DAMS ARE NEEDED, SEE CONCRETE CHECK DAM DETAIL SWQ-131.



8. PLANTING DESIGN AND IRRIGATION PER BASMAA POST-CONSTRUCTION MANUALAPPENDIX F-PLANT MATRIX.

9. MULCH (OPTIONAL) PER BASMAA POST-CONSTRUCTION MANUAL APPENDIX F-PLANTMATRIX.

10. LOCATE ENERGY DISSIPATION COBBLE ONLY AS SPECIFIED IN INLET DETAILS-AVOIDDECORATIVE USE.

CONSTRUCTION NOTES1. SCARIFY SUBGRADE BEFORE

INSTALLING BIORETENTION AREAAGGREGATE AND BSM.

2. FACILITY EXCAVATION TO ALLOW FORSPECIFIED SOIL AND MULCH DEPTHSTO ACHIEVE FINISHED ELEVATIONS ONCIVIL PLANS.




PARKING LOTPARKING LOT



DO NOT USE FILTER FABRIC

18" M

IN

CURB INLET CITY STD.SWQ-120, GUTTER INLET

ELEV. (GIE)

MAINTAIN 6" BENCH NATIVESOIL FOR SUPPORT OFADJACENT CURB/PAVING(TYPICAL)


CALTRANS CLASS 2 PERMEABLE 12"MIN. DEPTH PER PROJECT

REQUIREMENTS

MULCH LAYER


(BSM)

6" 6"

FLUSH CURBSURFACE ELEVATION(SE)

PARKING EDGE WILL VARYFOR NEW/RETROFIT, CITY STD.SWQ-114


OVERFLOWSTRUCTURE ELEV. (OE)


VARIES




PARKING LOT BIORETENTION FACILITY(FLAT/PLANTER, WITHOUT UNDERDRAIN)

TCW

SWQ-104

JBL06/2018NONE

LFM


CONSTRUCTION NOTES

24"

DESIGN NOTES1. ADDITIONAL DESIGN GUIDANCE PROVIDED IN BIORETENTION FACILITY FIGURE 4.1 & 4.2 OF THE

BASMAA POST-CONSTRUCTION MANUAL.

2. OVERFLOW STRUCTURE REQUIRED FOR IN-LINE SYSTEMS WITHOUT OVERFLOW BYPASS, PER CITYSTD. SWQ-140.

3. PROVIDE SPOT ELEVATIONS AT INLETS ON CIVIL PLANS (FE, OE, GIE, SE). SEE CITY STD. SWQ-121.

4. MAX. LONGITUDINAL SLOPE 6% WITH CHECK DAMS. SEE CITY STD. SWQ-130 AND SWQ-131.

5. EDGE CONDITION WILL VARY FOR PARKING LOT PROJECTS. SEE PARKING LOT EDGE OPTIONSDETAILS, SWQ-114. CURB AND FLUSH EDGE DETAILS MAY BE MODIFIED FOR PROJECT BY CIVILAND GEOTECHNICAL ENGINEERS AND APPROVED BY PUBLIC WORKS DEPARTMENT.

6. IF CALTRANS CLASS 2 PERMEABLE IS NOT AVAILABLE, SUBSTITUTE CLASS 3 PERMEABLE WITH ANOVERLYING 3" DEEP LAYER OF 3/4" (NO. 4) OPEN-GRADED AGGREGATE. (VERIFY WITH CITY OFNAPA CONSTRUCTION DIVISION)

7. BIORETENTION SOIL MEDIA (BSM) SPECIFICATION PER BASMAA POST-CONSTRUCTION MANUAL.

8. PLANTING DESIGN AND IRRIGATION PER BASMAA POST-CONSTRUCTION MANUAL APPENDIXF-PLANT MATRIX.

9. MULCH (OPTIONAL) PER BASMAA POST-CONSTRUCTION MANUAL APPENDIX F-PLANT MATRIX.


VARIES

BOTTOM WIDTH MIN.

EXISTINGSUBGRADE

1. SCARIFY SUBGRADE BEFOREINSTALLING BIORETENTION AREAAGGREGATE AND BSM.

2. FACILITY EXCAVATION TO ALLOWFOR SPECIFIED SOIL AND MULCHDEPTHS TO ACHIEVE FINISHEDELEVATIONS ON CIVIL PLANS.

3. COMPACT EACH 6" LIFT OF BSMWITH LANDSCAPE ROLLER OR BYLIGHTLY WETTING. IF WETTING,ALLOW TO DRY OVERNIGHT BEFOREPLANTING.

4. DO NOT WORK WITHINBIORETENTION AREA DURING RAINOR UNDER WET CONDITIONS.


18" MINBIORETENTION

SOIL MEDIA(BSM)

6"

6" MIN.PONDING

DEPTH

6"

MAINTAIN 6" BENCH NATIVE SOILFOR SUPPORT OF ADJACENT

CURB/PAVING (TYPICAL)

30 ML LINER MAYBE REQUIRED

(TYPICAL)


CALTRANS CLASS 2 PERMEABLE 12"MIN. DEPTH PER PROJECTREQUIREMENTS

CURB INLET CITY STD.SWQ-121, GUTTER INLET

ELEV. (GIE)PARKING EDGE WILL VARYFOR NEW/RETROFIT, CITY STD.SWQ-114

CURB AND GUTTERDETAIL SWQ-110

FINISHEDELEVATION(FE)

MULCHLAYER


FLUSH CURB SURFACEELEVATION (SE)

3:1 MAX. (TYPICAL)OVERFLOWSTRUCTURE ELEV.(OE)




PARKING LOT BIORETENTION FACILITY(SLOPED SIDED, WITHOUT UNDERDRAIN)

TCW

SWQ-105

JBL06/2018NONE

LFM

CONSTRUCTION NOTESDESIGN NOTES1. SPECIAL DESIGN CONSIDERATION OR STRUCTURAL REVIEW

MAY BE REQUIRED FOR LONGER PLANTER WALL SPANS.STEEL REINFORCEMENT OR ADDITIONAL CONCRETECHECK DAMS MAY BE NEEDED FOR STABILITY.

2. EDGE CONDITION WILL VARY FOR NEW AND RETROFITPROJECTS. CURB, GUTTER, AND WALL DETAILS MAY BEMODIFIED BY CIVIL AND GEOTECHNICAL ENGINEERS ANDAPPROVED BY PUBLIC WORKS DEPARTMENT. NOTE THAT24" GUTTER PROVIDES GREATER CURB STABILITY, BUT MAYNOT MATCH CITY OF NAPA GUTTER STANDARDS.

3. CONCRETE AND EXPANSION JOINTS SHALL MEET THEREQUIREMENTS OF THE MUNICIPALITY.

1. FINISH ALL EXPOSED CONCRETE SURFACES.

6"

R = 3 4"

DOWELS PER MUNICIPALSTANDARD

1.5"

BIORETENTIONAREA

AGGREGATE BASE PER MUNICIPALSTANDARD

24"

MIN. 24"

R = 3 4" TYP.




CURB AND GUTTERTCW

SWQ-110

JBL06/2018NONE

LFM

6"

1/2" DIAMETER SMOOTH DOWEL,24" LONG AT ALL EXPANSION JOINTS,PER CITY OF NAPA STANDARDS

CONSTRUCTION NOTESDESIGN NOTES1. SPECIAL DESIGN CONSIDERATION OR STRUCTURAL REVIEW MAY BE

REQUIRED FOR LONGER SWALE EDGE SPANS. STEELREINFORCEMENT OR ADDITIONAL CONCRETE CHECK DAMS MAY BENEEDED FOR STABILITY.

2. WHEN SIDEWALK DRAINS TO PLANTER, PROVIDE 4" - 6" WIDE NOTCHOPENINGS, 1" BELOW SIDEWALK, SLOPED TO FACILITY, PERBIORETENTION PLANTER DETAILS. SPACE OPENINGS TO CONVEYFLOWS. PROVIDE MINIMUM 2" COVER BETWEEN DRAINAGE NOTCHOPENING AND DOWELS.

3. CONCRETE AND EXPANSION JOINTS SHALL MEET THE REQUIREMENTSOF THE CITY OF NAPA.


1.5"

MIN. 24"

6"

STORMWATERFACILITY

R = 3 4" R = 3 4" TYP.

6" STREET/4" SIDEWALK

STREET/SIDEWALK/PARKING




DEEP CURBTCW

SWQ-111

JBL06/2018NONE

LFM

6"

SIDEWALK SECTION PERCITY STD. S-4.


MAY BE REQUIRED FOR LONGER FACILITY EDGE SPANS.STEEL REINFORCEMENT OR ADDITIONAL CONCRETECHECK DAMS MAY BE NEEDED FOR STABILITY.

3. FINISHED ELEVATION REVEAL - WHERE SIDEWALK CONVEYSSHEET FLOW TO FACILITY, A 1"-2" REVEAL SHOULD BEMAINTAINED BETWEEN SIDEWALK AND FACILITY FINISHEDGRADE TO AVOID MULCH OR PLANT BUILDUP FROMBLOCKING FLOWS.

4. CONCRETE AND EXPANSION JOINTS SHALL MEET THEREQUIREMENTS OF THE CITY OF NAPA.


PROVIDE 2% SHELF ATPEDESTRIAN INTERFACE

1"-2"

MIN. 12"

STORMWATERFACILITY

FINISHED ELEVATION REVEAL, SEEDESIGN NOTE

1/2" DIAMETER SMOOTH DOWEL, 24"LONG AT ALL EXPANSION JOINTS

SIDEWALK




THICKENED EDGE SIDEWALKTCW

SWQ-112

JBL

8"

06/2018NONE

LFM

6"

1/2" DIAMETER SMOOTH DOWEL, 24"LONG AT ALL EXPANSION JOINTS


MAY BE REQUIRED FOR LONGER FACILITY EDGE SPANS.STEEL REINFORCEMENT OR ADDITIONAL CONCRETECHECK DAMS MAY BE NEEDED FOR STABILITY.

2. EDGE CONDITION WILL VARY FOR PROJECTS. CURBDETAILS MAY BE MODIFIED BY CIVIL AND GEOTECHNICALENGINEERS AND APPROVED BY PUBLIC WORKSDEPARTMENT.

3. CONCRETE AND EXPANSION JOINTS SHALL MEET THEREQUIREMENTS OF THE CITY OF NAPA.

4. FINISHED ELEVATION REVEAL AT SIDEWALK - WHERESIDEWALK CONVEYS SHEET FLOW TO FACILITY, A 1"-2"REVEAL SHOULD BE MAINTAINED BETWEEN SIDEWALK ANDFACILITY FINISHED GRADE TO AVOID MULCH OR PLANTBUILDUP FROM BLOCKING FLOWS AND REDUCE DROP ATPEDESTRIAN INTERFACE.


SIDEWALK/PARKING SECTION PERMUNICIPAL STANDARDS (MAY BEUSED WITH EXISTING SURFACE)

PROVIDE 2% SHELF ATPEDESTRIAN INTERFACE

MIN. 12"

FINISHED ELEVATION REVEAL,SEE DESIGN NOTE

STORMWATERFACILITY

SIDEWALK/PARKING

MIN

. 8"

1"-2"




FLUSH CURB AT SIDEWALKTCW

SWQ-113

JBL06/2018NONE

LFM

DESIGN NOTES1. WHEEL STOPS MAY BE USED ON NON-FLUSH DESIGNS TO

KEEP CARS FROM OVERHANGING BIORETENTION FACILITY.

2. VEHICLE OVERHANG CAN BE USED TO REDUCEIMPERVIOUS PAVEMENT AREA.

3. WHERE VEHICLE OVERHANG IS UTILIZED SELECT LOWGROWING PLANTS THAT WILL TOLERATE SHADING.

PARKING LOT

STORMWATERFACILITY

DEEP CURB

DEEP CURBDETAIL SWQ-111

STORMWATERFACILITY

PARKING LOT

CURB AND GUTTER

CURB AND GUTTERDETAIL SWQ-110

PARKING LOT

STORMWATERFACILITY

FLUSH EDGE/WHEEL STOPS

FLUSH CURBDETAIL

SWQ-113




PARKING LOT EDGE OPTIONSTCW

SWQ-114

JBL06/2018NONE

LFM

STRE

ET

4'-6"AA

STREET 1'-6"

12"

CUR

BC

URB

6"

1'-6"

2'-6"

6"

6"

8"

DESIGN NOTES1. FOR USE WITH STORMWATER FACILITIES WITH FLAT

BOTTOMS.

2. PROVIDE SPOT ELEVATIONS ON PLANS (FE, OE, GIE, IE).SEE CITY STD. SWQ-100.

3. CURB AND WALL DETAILS MAY BE MODIFIED BY CIVIL ANDGEOTECHNICAL ENGINEERS AND APPROVED BY PUBLICWORKS DEPARTMENT.

4. CURB HEIGHT MAY BE REDUCED TO 4-INCHES WHEREADJACENT TO A SIDEWALK. SEE CITY STD. SWQ-110 ANDSWQ-111.

CONSTRUCTION NOTES1. AFTER CONSTRUCTION PLACE SAND BAGS AT

GUTTER OPENINGS TO KEEP STORM FLOWS FROMENTERING FACILITY UNTIL VEGETATION ISESTABLISHED.

PLAN VIEW

PERSPECTIVE VIEW

SECTION A-A

6"

R=6"

6"

DEPRESS GUTTER 2" ATOPENING, GUTTER INLET

ELEVATION (GIE)

CURB AND GUTTER,CITY STD. SWQ-110

FINISHEDELEVATION (FE)

DEPRESS GUTTER 2" AT OPENING,GUTTER INLET ELEVATION (GIE)

4" THICK CONCRETESPLASH PAD

DEPRESS GUTTER 2"AT OPENING

4" THICK CONCRETESPLASH PAD AT FACILITY

FINISHED ELEVATION

R = 3 4"TYP.

1'-6"

1'-6"




CURB CUT INLET FOR PLANTERSTCW

SWQ-120

JBL06/2018NONE

LFM

6"6"

8"

1'-6"

1 : 2

BIORETENTION DESIGN NOTES1. FOR USE WITH STORMWATER FACILITIES WITH

SIDE SLOPES.

2. PROVIDE SPOT ELEVATIONS ON PLANS (FE, OE,GIE, IE). SEE CITY STD SWQ-100.

3. CURB AND WALL DETAILS MAY BE MODIFIED BYCIVIL AND GEOTECHNICAL ENGINEERS ANDAPPROVED BY PUBLIC WORKS DEPARTMENT.

4. WHERE INLET FLOW VELOCITY IS HIGH, EXTENDCOBBLE INTO FACILITY, BUT AVOID EXCESSIVEUSE.

5. CURB HEIGHT MAY BE REDUCED TO 4-INCHESWHERE ADJACENT TO A SIDEWALK. SEE CITYSTD. SWQ-110 AND SWQ-111.

SECTION A-A

PERSPECTIVE VIEW

PLAN VIEW

CURB RETURN

CURB RETURN

CONSTRUCTION NOTES1. AFTER CONSTRUCTION, PLACE SAND BAGS

AT GUTTER OPENINGS TO KEEP STORMFLOWS FROM ENTERING FACILITY UNTILVEGETATION IS ESTABLISHED.

STRE

ET

4'-6"AA 1'-6"

12"

CUR

BC

URB

1"

1'-6"

R=6"

STREET

DEPRESS GUTTER 2"AT OPENING

1'-6"

8"

4"

PLACE 6" DEEP 3"-6" ROUNDED,WASHED, COBBLE ATCONCRETE INLET, SEE DESIGNNOTES

2'-0"

COBBLEENERGYDISSIPATION

DEPRESS GUTTER 2" ATOPENING, GUTTERINLET ELEVATION (GIE)

DEPRESS GUTTER 2"AT OPENING, GUTTER

INLET ELEVATION(GIE)



STORMWATERFACILITY




CURB CUT INLET FOR SIDE SLOPES(RAIN GARDEN OR SWALE)

TCW

SWQ-121

JBL06/2018NONE

LFM

2" 2"

18" MIN

BIORETENTION DESIGN NOTES1. FOR USE WITH STORMWATER FACILITIES WITH

SLOPED SIDES OR FLAT BOTTOMS.

2. PROVIDE SPOT ELEVATIONS ON PLANS (FE,OE, GIE, IE). SEE CITY STD SWQ-100 ANDSWQ-101.

3. DROP FROM INLET TO AGGREGATE PADWILL BE GREATER FOR PLANTERS.

3. CURB AND WALL DETAILS MAY BE MODIFIEDBY CIVIL AND GEOTECHNICAL ENGINEERSAND APPROVED BY PUBLIC WORKSDEPARTMENT.

4. WHERE INLET FLOW VELOCITY IS HIGH,EXTEND COBBLE INTO FACILITY, BUT AVOIDEXCESSIVE USE.

CONSTRUCTION NOTES1. AFTER CONSTRUCTION PLACE SAND BAGS


PLAN VIEW

SECTION A-A

4'-6"

6"

1'-6"

12"

2'-6"

1'-6"

STRE

ET

AA

CUR

BC

URB

6" DEPTH OF 3" - 6"ROUNDED, WASHEDCOBBLE

MIN. 2" DROP TO COBBLE

NOSE DOWN CURBOVER 6" (TYP.)

6"

GUTTER BEYOND

MIN. DROPTO COBBLE

MIN.

STORMWATERFACILITY

DEPRESS GUTTER 2"AT OPENING, GUTTERINLET ELEVATION(GIE)

DEPRESS GUTTER 2"AT OPENING, GUTTER

INLET ELEVATION(GIE)






CURB CUT INLET(WITH GRAVEL ENERGY DISSIPATION)

TCW

SWQ-122

JBL06/2018NONE

LFM

AA

STREET

6"

1" SHELF

18" GAP

DEPTH PERMANUFACTURER

STORMWATERFACILITY

B

B

INLET CURB

VARIES

0"

2%

VARIES

2%

STORMWATER FACILITYFLAT BOTTOM OR

SLOPE SIDED

GUT

TER

CUR

B

PLAN VIEW

SECTION B-B

BIORETENTION DESIGN NOTES1. FOR USE WITH STORMWATER FACILITIES WITH SLOPED SIDES OR FLAT BOTTOMS.

2. PROVIDE SPOT ELEVATIONS ON PLANS (FE, OE, GIE, IPE). SEE CITY STD. SWQ-100AND SWQ-101.

3. REFER TO CITY OF NAPA STANDARD DRAWINGS AND MATCH GUTTER PAN OFADJACENT CURB AND GUTTER.

4. IF SLOPED SIDES, WHERE INLET FLOW VELOCITY IS HIGH, EXTEND COBBLE INTOFACILITY, BUT AVOID EXCESSIVE USE.

5. BASE MATERIAL FOR CURB, GUTTER, AND SIDEWALK PER CITY OF NAPASTANDARDS.

SECTION A-A

CONSTRUCTION NOTES1. AFTER CONSTRUCTION PLACE SAND BAGS


12" T

YP. PL

AN

TER

WA

LL

24"

2"

GRATE AND FRAME

DEPRESS GUTTER 2"AT OPENING (GIE)

ADA COMPLIANTMANUFACTURED STEELGRATE AND FRAME

6" DEPTH OF 3" - 6"ROUNDED, WASHEDCOBBLE SPLASH PAD

BEVEL PLANTER WALL TOTOP OF INLET

INLET CHANNELWALLS

GRATE/FRAMEWIDTH PER PLAN

BOLT GRATEIN PLACE

SEE GRATE ANDFRAME DETAIL

WALL PER FACILITYDESIGN

OVERFLOW ELEV. PERFACILITY DESIGN (GOE)

GRATE

1/4" BOLTS,FLUSH

THREAD BOLTINTO FRAME PERMANUFACTURER

TOP OF GRATE= TOP OF CURB

FRAME

MATCH EXIST.CURB/GUTTER

EXPANSIONJOIN EACHSIDE (TYP.)

GUTTERFLOW LINE

COBBLE SPLASH PAD

DEPRESSGUTTER

2", (GIE)

INLET PANELEVATION (IPE)

DEPRESSGUTTER 2", (GIE) INLET PAN

ELEVATION (IPE)


SIDEWALK/GRATE


SIDEWALK ORPARKINGEGRESS

FLOW

INLET CURB

CUR

B

GUT

TER




INLET WITH GRATETCW

SWQ-123

JBL06/2018NONE

LFM

AA

STREET

6"

B

VARIES

2%

VARIES

2%

STORMWATER FACILITYFLAT BOTTOM OR

SLOPE SIDED

CUR

BPLAN VIEW

BIORETENTION DESIGN NOTES1. FOR USE WITH STORMWATER FACILITIES WITH SLOPED SIDES OR FLAT BOTTOMS.

2. PROVIDE SPOT ELEVATIONS ON PLANS (FE, OE, GIE, IPE). SEE CITY STD. SWQ-100AND SWQ-101.

3. REFER TO CITY OF NAPA STANDARD DRAWINGS AND MATCH GUTTER PAN OFADJACENT CURB AND GUTTER.

4. IF SLOPED SIDES, WHERE INLET FLOW VELOCITY IS HIGH, EXTEND COBBLE INTOFACILITY, BUT AVOID EXCESSIVE USE.

5. BASE MATERIAL FOR CURB, GUTTER, AND SIDEWALK PER CITY OF NAPA STANDARDS.

SECTION A-A

CONSTRUCTION NOTES1. AFTER CONSTRUCTION PLACE GRAVEL

BAGS AT GUTTER OPENINGS TO KEEPSTORM FLOWS FROM ENTERING FACILITYUNTIL VEGETATION IS ESTABLISHED.

2. GALVANIZED STEEL TO BE 1/4" THICK.

3. ALL CONCRETE SHALL BE CLASS "A" (6SACK PER CUBIC YARD).

4. GALVANIZED STEEL BOX TO BE DESIGNEDPER CITY STD. D-5B.

12" T

YP. PL

AN

TER

WA

LL

24"

2"

DEPRESS GUTTER 2"AT OPENING (GIE)

6" DEPTH OF 3" - 6" ROUNDED,WASHED COBBLE SPLASH PADPER CITY STD. SWQ-122

WALL PER FACILITY DESIGN

COBBLE SPLASH PAD

CURB CUT INLET FOR PLANTERS,CITY STD. SWQ-120



CURB AND GUTTER, CITY STD.SWQ-110


SIDEWALK ORPARKINGEGRESS

CUR

B

GUT

TER

STORMWATERFACILITY

ENCLOSEDSTEEL BOX

FLOW

4"

FLOWLINE OF BOXSET AT FLOWLINE OF GUTTER

10 GAGE WIRE MESH (4"x4"),WIDTH OF BOX + 24",CENTERED OVER BOX.

SIDEWALK PERCITY STD. S-4

6" MIN

2'

SECTION B-B

B

GUT

TER

F/C

2 - #4 BARS 24" LONG

18"x3" ENCLOSEDSTEEL BOX

2" MINIMUM

4" PCC

GALVANIZED STEEL BOXMINIMUM 1' 6" WIDE

3" MIN

CURB HEIGHT PERCITY STD. S-2

SUBGRADE COMPACTEDTO 95%

CLASS 2 AB




INLET WITH UNDER SIDEWALK DRAIN(COMMERCIAL)

TCW

SWQ-123A

JBL06/2018NONE

LFM

A

A

2" MIN

FLOW

SPECIFY

SPECIFY

SECTION A-A

BIORETENTION DESIGN NOTES1. FOR USE WITH STORMWATER FACILITIES WITH SLOPED

SIDES.

2. BEST SUITED FOR FACILITIES WITH < OF <= THAN 2%LONGITUDINAL SLOPE.

3. PROVIDE ELEVATIONS AND STATIONING AND/ORDIMENSIONING FOR CHECK DAMS.

4. SPACE CHECK DAMS TO MAXIMIZE PONDING ACROSSENTIRE CELL.

5. ENSURE THAT CHECK DAM ELEVATIONS DO NOT CAUSESTORMWATER TO OVERFLOW TO SIDEWALK.

CONSTRUCTION NOTES1. DO NOT WORK DURING RAIN OR UNDER WET

CONDITIONS.

2. KEEP ALL HEAVY MACHINERY OUTSIDEBIORETENTION AREA LIMITS.

CURB AND GUTTER PERBIORETENTION WITH

SIDESLOPE DETAIL4" -6" WASHED

COBBLE

TOP OF CHECK DAM

SLOPE 2:1

4" - 6" WASHEDCOBBLE

SLOPE 2:1

BSM

2" MIN

BIORETENTION SOIL MEDIA (BSM)

STREET SIDEWALK




GRAVEL CHECK DAMTCW

SWQ-130

JBL06/2018NONE

LFM

6"

BSM 18" MINBSM

6"

EXISTING SUBGRADEOR ROCK STORAGE

3" (TYP.)

3" (TYP.)

3" 3"

3" (TYP.)

CURB AND GUTTER ORPLANTER WALL

BIORETENTION DESIGN NOTES1. FOR USE WITH BIORETENTION PLANTERS OR SLOPED SIDED

SWALES/RAIN GARDENS.

2. FOR CHECK DAMS LONGER THAN 12' SPECIFY REBAROVERLAP LENGTH.

3. SPACE CHECK DAMS TO MAXIMIZE PONDING ACROSSCELLS.

4. PROVIDE ELEVATIONS AND STATIONING AND/ORDIMENSIONING FOR CHECK DAMS.

5. ENSURE THAT CHECK DAM ELEVATIONS DO NOT CAUSESTORMWATER TO OVERFLOW TO SIDEWALK.

6. SHOW PLANTER WALL EMBEDDED IN EXISTING SUBGRADEOR DRAINROCK.

CONSTRUCTION NOTES1. EMBED #3 REBAR 3" INTO CURB AND PLANTER

WALL.

2. DO NOT WORK DURING RAIN OR UNDER WETCONDITIONS.

3. KEEP ALL HEAVY MACHINERY OUTSIDEBIORETENTION AREA LIMITS.

SEE CONSTRUCTIONNOTE 2

PLANTER WALL

LAP SPLICE #3 REBAR TOEMBEDDED REBAR, OVERLAP 12"(SEE DESIGN NOTE 2)

TOP OF SIDEWALKTOP OF PLANTER WALL

#3 REBAR

6" OF 3"-6" ROUNDED,WASHED COBBLE

EXISTING SUBGRADEOR ROCK STORAGE

FLOW2" FREEBOARD

SIDEWALK




CONCRETE CHECK DAMTCW

SWQ-131

JBL06/2018NONE

LFM

24"

24 3 4"

9"

BEEHIVE GRATE

1778"

24"x4" REVERSIBLE MANHOLE FRAME

10"

DESIGN NOTES1. PROVIDE GRATE OVERFLOW ELEVATION ON PLANS.

2. TO INCORPORATE FLEXIBILITY INTO DESIGN OVERFLOWELEVATION OR CORRECT ELEVATION OF AN EXISTINGSTRUCTURE, INSTALL OVERFLOW COLLAR, PER CITY STD.SWQ-141.

CONSTRUCTION NOTES1. DO NOT ADJUST OVERFLOW GRATE ELEVATION,

CONSTRUCT AS SHOWN ON PLANS.

MANHOLE RING AND BEEHIVE GRATEMH25BH BY OLYMPIC FOUNDRY OR

APPROVED EQUAL

1934"

19"

1778"

19"253

8"

3"12"

34"

PONDING DEPTH

WIRE ROPE BEEHIVE GRATE, SEE BELOW

MANHOLE FRAME, SEE BELOW

EPOXY MANHOLE FRAME TOSTD. REINF. CONC. PIPE CLASS III

SPECIFY GRATE OVERFLOW ELEVATION TOACHIEVE DESIGN PONDING DEPTH (GOE)

ADJACENT STORMWATERFACILITY PLANTING SURFACE

#4 REBAR U-BOLT

STD. REINF. CONC. PIPE CLASS III

SLOPE TO DRAIN

PRECAST OR POURED INPLACE 6" MIN. DEPTH

GROUT PIPE AT BASE

3000 PSI COMMERCIALGRADE CONCRETE

GROUT AT CONNECTION

CONNECT TO APPROVEDDISCHARGED POINT



OVERFLOW STRUCTUREW/ BEEHIVE GRATE

TCW

SWQ-140


06/2018NONE

LFM

DESIGN NOTES1. MAY BE USED IN CONJUNCTION WITH

OVERFLOW STRUCTURES TO ALLOW FOR FIELDADJUSTMENT OF OVERFLOW ELEVATION, OR ASRETROFIT TO CORRECT EXISTING STRUCTURETHAT DOES NOT ALLOW PONDING TO OCCUR.

2. PROVIDE COLLAR OVERFLOW ELEVATION (COE)ON PLANS.

CONSTRUCTION NOTES1. CENTER COLLAR ON OVERFLOW GRATE.

SPECIFY COLLAR OVERFLOWELEVATION TO ACHIEVE DESIGN

PONDING DEPTH (COE)

ADJACENT STORMWATERFACILITY PLANTING SURFACE 2"-5"

MIN. 10"

30" OR 36" DIA. STEEL OR RIGIDPLASTIC PIPE COLLAR, OR DIA. ASNEEDED TO SURROUND EXISTINGOVERFLOW STRUCTURE FORRETROFITS

BACKFILL WITH CALTRANS CLASS 2OR 3 PERMEABLE

PONDING DEPTH VARIES

OVERFLOW STRUCTURE



OVERFLOW STRUCTURE COLLARTCW

SWQ-141


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LFM

HDPE OR PVC 30 MIL LINER

1/8" MIN ALUMINUM FLAT BAR, 2" WIDTH

2" x 1/4" HIT ANCHOR 12"O.C.

TRIM LINER TO TOP EDGE OF FLAT BAR. SILICONESEAL TOP EDGE OF FLAT BAR. TOP OF LINER TO BE3" BELOW SOIL LEVEL.

DEPTH OF LINER PER CIVIL/GEOTECHNICAL ENGINEER

STORMWATERFACILITY

ADJACENTCURB ORPLANTER

WALL


PUBLIC WORKS DEPARTMENT

IMPERMEABLE LAYERTCW

SWQ-150

JBL

CITY OF NAPADRAWN BY:APPROVAL DATE:SCALE:REVISED DATE:

06/2018NONE

LFM


PUBLIC WORKS DEPARTMENT

BIORETENTION FACILITY PLANT MATRIX(KEY)

TCW

SWQ-160

JBL

CITY OF NAPADRAWN BY:APPROVAL DATE:SCALE:REVISED DATE:

06/2018NONE

LFM



BIORETENTION FACILITY PLANT MATRIXTCW

SWQ-161A


06/2018NONE

LFM



BIORETENTION FACILITY PLANT MATRIXTCW

SWQ-161B


06/2018NONE

LFM



PLANTING INUNDATION ZONESTCW

SWQ-162


06/2018NONE

LFM

VARIES

18" MIN

EXISTINGSUBGRADE

6"


4.2 OF THE BASMAA POST-CONSTRUCTION MANUAL.


3. PROVIDE SPOT ELEVATIONS AT INLETS ON CIVIL PLANS (FE,OE, GIE, SIE). SEE CITY STD.SWQ-120.

4. EDGE CONDITION WILL VARY FOR NEW AND RETROFIT PROJECTS. CURB, WALL, ANDSIDEWALK DETAILS MAY BE MODIFIED FOR PROJECT BY CIVIL AND GEOTECHNICALENGINEERS AND APPROVED BY THE PUBLIC WORKS DEPARTMENT.

5. PROVIDE CAPPED, THREADED PVC CLEANOUT FOR UNDERDRAIN, 4" MIN. DIA. WITHSWEEP BEND.

6. IF CHECK DAMS ARE NEEDED, SEE CONCRETE CHECK DAM PER CITY STD. SWQ-131.



9. PLANT SELECTION PER BASMAA POST-CONSTRUCTION MANUAL APPENDIX F - PLANTMATRIX.

10. MULCH (OPTIONAL) PER BASMAA POST-CONSTRUCTION MANUAL APPENDIX F -PLANT MATRIX.

11. LOCATE ENERGY DISSIPATION COBBLE PADS AS SPECIFIED IN INLET DETAILS - AVOIDDECORATIVE USE.


BIORETENTION AREA AGGREGATE ANDBSM.


3. INSTALL UNDERDRAIN WITH HOLESFACING DOWN. UNDERDRAINDISCHARGE ELEVATION SHALL BE NEARTOP OF AGGREGATE LAYER.UNDERDRAIN SLOPE MAY BE FLAT.

4. COMPACT EACH 6" LIFT OF BSM WITHLANDSCAPE ROLLER OR BY LIGHTLYWETTING. IF WETTING, LET DRYOVERNIGHT BEFORE PLANTING.



CURB INLET PER CITY STD.SWQ-120, GUTTER INLET ELEV.

(GIE)CURB AND GUTTER

PER CITY STD.SWQ-110


SIDEWALK/ROAD (TYPICAL)




SIDEWALK DRAINAGE NOTCH 1"LOWER THAN SIDEWALK, SLOPEDTO FACILITY, SIDEWALK INLETELEV. (SIE)

DEEP CURB PERCITY STD. SWQ-111

UNDERDRAIN, MIN. 4" DIA. PVC SDR 35PERFORATED PIPE, SEE CONSTRUCTION NOTE

SIDEWALK



STREET

12" MIN



(BSM)

12" DEPTH CALTRANSCLASS 2 PERMEABLE

PLACE BSM IN 6" LIFTS, PER NOTES

SIDEWALK PER CITYOF NAPA STANDARDS



STREET BIORETENTION FACILITY(FLAT/PLANTER, NO ON-STREET PARKING, SIDEWALK, WITH UNDERDRAIN)

TCW

SWQ-200


06/2018NONE

LFM

EXISTINGSUBGRADE





4. EDGE CONDITION WILL VARY FOR NEW AND RETROFIT PROJECTS. CURB, WALL, ANDSIDEWALK DETAILS MAY BE MODIFIED FOR PROJECT BY CIVIL AND GEOTECHNICALENGINEERS.




8. PLANTING DESIGN AND IRRIGATION PER BASMAA POST-CONSTRUCTION MANUALAPPENDIX F-PLANT MATRIX.

9. MULCH (OPTIONAL) PER BASMAA POST-CONSTRUCTION MANUAL APPENDIX F-PLANTMATRIX.

10. LOCATE ENERGY DISSIPATION COBBLE ONLY AS SPECIFIED IN INLET DETAILS-AVOIDDECORATIVE USE.

CONSTRUCTION NOTES1. SCARIFY SUBGRADE BEFORE

INSTALLING BIORETENTION AREAAGGREGATE AND BSM.

2. FACILITY EXCAVATION TO ALLOW FORSPECIFIED SOIL AND MULCH DEPTHSTO ACHIEVE FINISHED ELEVATIONS ONCIVIL PLANS.




SIDEWALK

STREET


(BSM) 18" M

IN

6"

12" MIN

VARIES


WIDTH PER CITY OF NAPAREQUIREMENTS

OVERFLOWSTRUCTURE ELEV. (OE) 4" MIN. EXPOSED WALL HEIGHT



SIDEWALK/ROAD (TYPICAL)


12" MIN CALTRANS CLASS 2PERMEABLE BASE PER PROJECT

REQUIREMENTS



DO NOT USE FILTER FABRIC

DEEP CURB PER CITY STD.SWQ-111

SIDEWALK PER CITY OFNAPA STANDARDS

SIDEWALK DRAINAGE NOTCH1" BELOW SIDEWALK, SLOPEDTO FACILITY, SIDEWALK INLETELEV. (SIE)

MULCH LAYER(OPTIONAL)

CURB INLET WITH GRATE PER CITY STD.SWQ-123, GUTTER INLET ELEV. (GIE)




STREET BIORETENTION FACILITY(FLAT/PLANTER, WITH ON-STREET PARKING, SIDEWALK, WITH UNDERDRAIN)

TCW

SWQ-201


06/2018NONE

LFM

CONSTRUCTION NOTES

24"

DESIGN NOTES1. ADDITIONAL DESIGN GUIDANCE PROVIDED IN BIORETENTION FACILITY FIGURE 4.1 & 4.2 OF

THE BASMAA POST CONSTRUCTION MANUAL.

2. OVERFLOW STRUCTURE REQUIRED FOR IN-LINE SYSTEMS WITHOUT OVERFLOW BYPASS, CITYSTD. SWQ-140.

3. PROVIDE SPOT ELEVATIONS AT INLETS ON CIVIL PLANS (FE, OE, GIE, SE). SEE CITY STD.SWQ-121 AND SWQ-122.


5. EDGE CONDITION WILL VARY FOR NEW AND RETROFIT PROJECTS. CURB AND SIDEWALKDETAILS MAY BE MODIFIED FOR PROJECT BY CIVIL AND GEOTECHNICAL ENGINEERS ANDAPPROVED BY PUBLIC WORKS DEPARTMENT.

6. IF CALTRANS CLASS 2 PERMEABLE IS NOT AVAILABLE, SUBSTITUTE CLASS 3 PERMEABLE WITHAN OVERLYING 3" DEEP LAYER OF 3/4" (NO. 4) OPEN-GRADED AGGREGATE. (VERIFY WITHCITY OF NAPA CONSTRUCTION DIVISION)

7. BIORETENTION SOIL MEDIA (BSM) SPECIFICATION PER BASMAA POST CONSTRCUTIONMANUAL.

8. PLANTING DESIGN AND IRRIGATION PER BASMAA POST CONSTRUCTION MANUALAPPENDIX F PLANT MATRIX.

9. MULCH (OPTIONAL) PER BASMAA POST CONSTRUCTION MANUAL APPENDIX F PLANTMATRIX.


BOTTOM WIDTH MIN.




EXISTINGSUBGRADE


SIDEWALK ELEVATION(SE)


SIDEWALKSTREET

OVERFLOW STRUCTURE ELEV. (OE)CURB INLET PER CITY STD. SWQ-121 ANDSWQ-122, GUTTER INLET ELEV. (GIE)


2. FACILITY EXCAVATION TO ALLOW FORSPECIFIED SOIL AND MULCH DEPTHS TOACHIEVE FINISHED ELEVATIONS ONCIVIL PLANS.




EDGE CONDITION WILL VARYFOR NEW/RETROFIT, PER CITYSTD. SWQ-111, SWQ-112 ANDSWQ-113


(BSM)

6"

6" MIN.PONDING


FINISHEDELEVATION

(FE)

MULCH LAYER

12"

CALTRANS CLASS 2 PERMEABLE 12"MIN.DEPTH PER PROJECT REQUIREMENTS

3:1 MAX. W. SHELF4:1 MAX. NO SHELF

VARIES

12" MIN

18" M

IN



STREET BIORETENTION FACILITY(SLOPED SIDED, NO ON-STREET PARKING, SIDEWALK, WITH UNDERDRAIN)

TCW

SWQ-202


06/2018NONE

LFM

CONSTRUCTION NOTES

12"


4.2 OF THE BASMAA POST CONSTRUCTION MANUAL.

2. OVERFLOW STRUCTURE REQUIRED FOR IN-LINE SYSTEMS WITHOUT AN OVERFLOWBYPASS, CITY STD. SWQ-140.


4. MAX. LONGITUDINAL SLOPE 6% WITH CHECK DAMS. SEE CITY STD. SWQ-130 ANDSWQ-131.



7. BIORETENTION SOIL MEDIA (BSM) SPECIFICATION PER BASMAA POST CONSTRCUTIONMANUAL.




VARIES

MAINTAIN 6" BENCH NATIVESOIL FOR SUPPORT OFADJACENT SIDEWALK/ROAD(TYPICAL)EXISTING

SUBGRADEDO NOT USE FILTER FABRICBETWEEN BSM AND AGGREGATE

SIDEWALK ELEVATION (SE)

SIDEWALK

OVERFLOWSTRUCTUREELEV. (OE)

CURB INLET SEE CITY STD.SWQ-121 GUTTER INLET ELEV.

(GIE)



3. INSTALL UNDERDRAIN WITH HOLES FACINGDOWN. UNDERDRAIN DISCHARGEELEVATION SHALL BE NEAR TOP OFAGGREGATE LAYER. UNDERDRAIN SLOPEMAY BE FLAT.

4. COMPACT EACH 6" LIFT OF BSM WITHLANDSCAPE ROLLER OR BY LIGHTLYWETTING. IF WETTING, LET DRY OVERNIGHTBEFORE PLANTING.



EDGE CONDITION WILLVARY FOR NEW/RETROFIT,CITY STD. SWQ-111,SWQ-112 AND SWQ-113

6"

UNDERDRAIN, MIN. 4" DIA.PVC SDR 35 PERFORATED PIPE,

SEE CONSTRUCTION NOTE

12" DEPTH CALTRANSCLASS 2 PERMEABLE

24" MIN.BOTTOM WIDTH

6" MIN.PONDING

3:1 MAX.W/ SHELF




STREET

12" MIN

MULCH LAYER (OPTIONAL)

18" M

IN

2% SHELF(TYP.)

6"

4:1 MAX.NOSHELF


(BSM)



STREET BIORETENTION FACILITY(SLOPED SIDED, WITH ON-STREET PARKING, SIDEWALK, WITH UNDERDRAIN)

TCW

SWQ-203


06/2018NONE

LFM

EXISTINGSUBGRADE

BIORETENTION DESIGN NOTES1. ADDITIONAL DESIGN GUIDANCE PROVIDED IN BIORETENTION FACILITY FIGURE 4.1 & 4.2

OF THE BASMAA POST CONSTRUCTION MANUAL.



4. EDGE CONDITION WILL VARY FOR PARKING LOT PROJECTS. SEE PARKING LOT EDGEOPTIONS DETAIL SWQ-114. CURB AND FLUSH EDGE DETAILS MAY BE MODIFIED FORPROJECT BY CIVIL AND GEOTECHNICAL ENGINEERS AND APPROVED BY PUBLICWORKS DEPARTMENT.



7. BIORETENTION SOIL MEDIA (BSM) SPECIFICATION PER BASMAA POST CONSTRUCTIONMANUAL.





BIORETENTION AREA AGGREGATE ANDBSM.


3. INSTALL UNDERDRAIN WITH HOLESFACING DOWN. UNDERDRAINDISCHARGE ELEVATION SHALL BE NEARTOP OF AGGREGATE LAYER. UNDERDRAINSLOPE MAY BE FLAT.





PLACE BSM IN 6"LIFTS PER NOTES


DO NOT USE FILTERFABRIC

18" M

IN

CURB INLET PER CITY STD. SWQ-120,GUTTER INLET ELEV. (GIE)

MAINTAIN 6" BENCH NATIVESOIL FOR SUPPORT OFADJACENT CURB/PAVING(TYPICAL)


CALTRANS CLASS 2PERMEABLE 12" DEPTH PER

PROJECT REQUIREMENTS

MULCH LAYER


(BSM)

6" 6" FLUSH CURB SURFACEELEVATION (SE)

PARKING EDGE WILL VARY FORNEW/RETROFIT, CITY STD.SWQ-114

12" MIN

UNDERDRAIN, MIN. 4" DIA. PVCSDR 35 PERFORATED PIPE, SEECONSTRUCTION NOTE

FINISHED ELEVATION (FE)CURB AND GUTTER PER

CITY STD. SWQ-110

OVERFLOWSTRUCTURE ELEV. (OE)

VARIES



PARKING LOT BIORETENTION FACILITY(FLAT/PLANTER, WITH UNDERDRAIN)

TCW

SWQ-204


06/2018NONE

LFM


CONSTRUCTION NOTES

24"

DESIGN NOTES1. ADDITIONAL DESIGN GUIDANCE PROVIDED IN BIORETENTION FACILITY FIGURE 4.1 & 4.2 OF

THE BASMAA POST CONSTRUCTION MANUAL.

2. OVERFLOW STRUCTURE REQUIRED FOR IN-LINE SYSTEMS WITHOUT OVERFLOW BYPASS, CITYSTD. SWQ-140.



5. EDGE CONDITION WILL VARY FOR PARKING LOT PROJECTS. SEE PARKING LOT EDGE OPTIONSDETAIL SWQ-114. CURB AND FLUSH EDGE DETAILS MAY BE MODIFIED FOR PROJECT BY CIVILAND GEOTECHNICAL ENGINEERS AND APPROVED BY PUBLIC WORKS DEPARTMENT.

6. IF CALTRANS CLASS 2 PERMEABLE IS NOT AVAILABLE, SUBSTITUTE CLASS 3 PERMEABLE WITH ANOVERLYING 3" DEEP LAYER OF 3/4" (NO. 4) OPEN-GRADED AGGREGATE. (VERIFY WITH CITYOF NAPA CONSTRUCTION DIVISION)

7. BIORETENTION SOIL MEDIA (BSM) SPECIFICATION PER BASMAA POST CONSTRUCTIONMANUAL.

8. PLANTING DESIGN AND IRRIGATION PER BASMAA POST CONSTRUCTION MANUAL APPENDIXF PLANT MATRIX.

9. MULCH (OPTIONAL) PER BASMAA POST CONSTRUCTION MANUAL APPENDIX F PLANT MATRIX.


VARIES

BOTTOM WIDTH MIN.


CURB/PAVING (TYPICAL)

30 ML LINER MAYBE REQUIRED

(TYPICAL)


CALTRANS CLASS 2 PERMEABLE12" DEPTH PER PROJECTREQUIREMENTS

PLACE BSM IN 6" LIFTS, PER NOTES



3. INSTALL UNDERDRAIN WITH HOLESFACING DOWN. UNDERDRAINDISCHARGE ELEVATION SHALL BE NEARTOP OF AGGREGATE LAYER.UNDERDRAIN SLOPE MAY BE FLAT.





(BSM)

6"

6" MIN.PONDING

DEPTH

CURB AND GUTTERCITY STD. SWQ-110


MULCHLAYER

18" M

IN12" MIN


CURB INLET PER CITY STD.SWQ-121, GUTTER INLET

ELEV. (GIE)

EXISTINGSUBGRADE

3:1 MAX. (TYPICAL)OVERFLOWSTRUCTURE ELEV.(OE)

PARKING EDGE WILL VARYFOR NEW/RETROFIT, CITYSTD. SWQ-114

FLUSH CURB SURFACEELEVATION (SE)

6"



PARKING LOT BIORETENTION FACILITY(SLOPED SIDED, WITH UNDERDRAIN)

TCW

SWQ-205


06/2018NONE

LFM



NO DUMPING DRAINS TO RIVER CURBMARKER

TCW

SWQ-206

JBL

Ø4.00"

MANHOLE COVERS WITH "NO DUMPING - DRAINS TO RIVER" SIGNAGE MAY SUBSTITUTE ADDITIONAL MARKINGS. STORMDRAIN COVERS SHALLBE FROM OLDCASTLE PRECAST MODEL: CIN-COVER.

EACH STORM DRAIN WITHIN THE CITY LIMITS NEEDS TO BE MARKED WITH A “NO DUMPING - DRAINS TO RIVER” MARKER. CONTRACTOR IS TOPURCHASE THESE MARKERS FROM THE PUBLIC WORKS DEPARTMENT LOCATED AT 1600 FIRST STREET.

CAST IRON COVERA

'NO DUMPING' MARKERB

24"

A

B

NO DUMPINGMARKER B

ANO DUMPING CASTIRON COVER


06/2018NONE

LFM

08/2021

STREET - City of Napa

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