NOT TO SCALE

PLAN - RESIDENTIAL PARKWAY BASIN

DEPTH < 12" TYPE A & B

20'-0" MAX.

A

A

B

STREET FLOW

EXIST.

CURB

EN

D O

F

PA

RK

WA

Y

BA

SIN

SEE

NOTE 9

EXISTING

SIDEWALK

TREE

(OPTIONAL)

OPTIONAL

NEW TREE &

TREE SHELF

(SEE NOTE 9)

ADJACENT

PARKWAY/

OTHER

SECTION A-A

COBBLE EDGER

TYP. (SEE NOTE 6)

9" COBBLE

STONES TYP.

12" M

AX

DE

PT

H

C CURB INLET

(SEE SHEETS 2, 3 & 4)

L

SEE NOTES

6 & 12

P

L

SAME SLOPE

AS SIDE SLOPES,TYP.

P

L

PROPERTY LINE

PROJECTION

TO CURB FACE

9

0

°

P

L

9

0

°

ST

AR

T O

F

PA

RK

WA

Y

BA

SIN

3'-0"

B

TYP. VEGETATION

AND MULCH COVER

(SEE NOTES 11 & 12)

1'-0"

MINIMUM

4"-6" DEEP

SEDIMENT

TRAP

4"-6" DEEP

SEDIMENT

TRAP

RESIDENTIAL PARKWAY BASIN

( WITH CURB INLET )

ELECTRONICALLY SIGNED BY EDWARD ARRINGTON, S.E. , 11:05 am, Jan 13, 2017

B-4756

BUREAU OF ENGINEERING

OFFICIAL RECORD

Electronically Signed by Ken Redd on 01/13/2017 3:07:38 PM01/13/2017 Electronically signed by 21866 on 01/13/2017 at 3:11:35 PM

REGI

STER

ED PROFESSIONAL ENGINEER

STATE OF CALIFORNIAC I V I L

GARY LEE MOORE

No. C-49446

01/13/2017

NOT TO SCALE

EXIST.

SIDEWALK

PER S-444

6'-0" MIN.

VARIES

1'-6" CONVENIENCE

STRIP (SEE NOTE 12)

BASIN TYPE A

SECTION B-B

2:1 MAX SIDE SLOPE

TYP. (SEE NOTES 6 & 7)

12"

MA

X

DE

PT

H

P

L

EXIST.

CURB

EXIST.

SIDEWALK

PER S-444

8'-0" MIN.

2'-0"2'-0"

1'-6" MIN CONVENIENCE

STRIP (SEE NOTE 12)

VARIES

2:1 MAX SIDE SLOPE

TYP. (SEE NOTES 6 & 7)

1:6 MAX

SLOPE

(SEE NOTE 8)

BASIN TYPE B

SECTION B-B

12"

MA

X

DE

PT

H

P

L

EXIST.

CURB

V

:

H

H

V

PARKWAY BASIN

SIDE SLOPES

V : H

TYP. VEGETATION

AND MULCH COVER

(SEE NOTES 11 & 12)

TYP. VEGETATION

AND MULCH COVER

(SEE NOTES 11 & 12)

CURB

SAW CUT

O

P

T

IO

N

A

L

S

K

E

W

F

O

R

T

Y

P

E

2

IN

L

E

T

S

0

T

O

3

0

2

'

-

1

0

"

C

U

R

B

R

E

M

O

V

A

L

L

I

M

I

T

3'-3"

MAX FOR

SKEW INLETS

9

0

°

STREET FLOW

EXIST.

CURB

o

o

C CURB INLET &

CURB OPENING

L

CURB

SAW CUT

LINE

CURB

SAW CUT

LINE

PLAN

C

C CURB INLET &

CURB OPENING

L

C

SECTION C-C

CURB REMOVAL LIMIT

CURB

REMOVAL

LIMIT

BACK

OF CURB

BACK

OF CURB

FLOW

LINE

FOR TYPE 2 CURB INLET ONLY

PLAN

DETAIL 1 - CURB OPENING

1%

1%

C

CURB INLETS NOT SHOWN (SEE NOTE 8)

GRIND PLANE

SMOOTH AFTER

CURB REMOVAL

C

EXISTING

GUTTER

EXISTING

GUTTER

CURB

REMOVAL LIMIT

(2'-10" TYPE 1 & 2)

(2'-0" TYPE 3)

EXISTING

GUTTER

(OPTIONAL SKEW)

1'-0"

MIN

1'-0"

MIN

B-4756

BUREAU OF ENGINEERING

OFFICIAL RECORD

3%

SLO

PE

2'-0" MIN

PLAN

SECTION D-D

SECTION E-E CURB INLET TYPE 2

DD

2'-10"

E

C C

ON

CR

ET

E

TR

OU

GH

CU

RB

IN

LE

T

L

EXIST.

CURB

1.5"

6"

1

4

" THICK STEEL

COVER PLATE WITH

APPROVED SLIP

RESISTANCE COATING

STEEL ANGLE PERIMETER

FRAME, SIZE TO MATCH

GRATE THICKNESS

#3 BAR @18" OC

EMBEDMENT

ANCHOR

4-IN LONG TYP.

APPROVED 24" SLIP RESISTANT

CAST IRON TRENCH GRATE

WITH INSPECTION OPENNINGS

22"

4"

3"

1.5"

3

8

"x1" FLATHEAD

MACHINE SCREW

COUNTERSUNK

(TOT. 4) TYP.

1"

1"X2" ROD ANCHORS

DRILLED AND TAPPED FOR

3

8

" MACHINE SCREWS (TOTAL 6)

6"

4"

22"

C CONCRETE TROUGH

L

SECTION E-E CURB INLET TYPE 1

CAST IRON COVER PLATE OPTION

STEEL COVER PLATE OPTION

1

2

IN

NO

SIN

G

C

O

V

E

R

P

L

A

T

E

2

'

-

4

"

(

F

O

R

T

Y

P

E

2

I

N

L

E

T

)

O

R

2

'

-

0

"

(

F

O

R

T

Y

P

E

1

I

N

L

E

T

)

2

'

-

1

0

"

C

U

R

B

S

A

W

C

U

T

S

2

2

"

C

L

E

A

R

O

P

E

N

I

N

G

CONCRETE

TROUGH

CONCRETE

TROUGH

EXISTING

CURB & GUTTER

E

STREET FLOW

O

P

T

IO

N

A

L

S

K

E

W

F

O

R

IN

L

E

T

T

Y

P

E

2

(0

T

O

3

0

)

o

o

CURB INLET TYPE 1 & 2

CONCRETE TROUGH

( INLET TYPE 2 SHOWN )

1.5"

90%

COMPACTED

SOIL TYP.

90%

COMPACTED

SOIL TYP.

4

"

R

SEE CURB OPENING

DETAIL1 (SHEET 2 OF 5)

(OPTIONAL SKEW ANGLE NOT SHOWN FOR TYPE 2)

3

8

" MACHINE SCREWS

TOTAL 6 (TYPE 2

INLET SHOWN)

2"

6"

1 2

"

VA

RIE

S

4"-6"

WIDTH VARIES 24" TO 30"

(SEDIMENT TRAP)

9" COBBLE

STONES TYP.

"V" INVERT

1 2

"

"V" INVERT

( INLET TYPE 1 SHOWN )

L

1

4

" THICK STEEL

COVER PLATE

CURB INLET

CONCRETE

TROUGH

CURB INLET C

HORIZONTAL STIFFNER STEEL ANGLES

1" X 1" X

1

4

" TYP. CENTERED

BETWEEN INSPECTION OPENINGS

1"X4" INSPECTION

OPENNINGS SPACED

@ 4" CLEAR EACH

WAY (TOTAL 6)

HORIZONTAL STIFFNER STEEL ANGLES

1" X 1" X

1

4

" TYP. CENTERED

BETWEEN INSPECTION OPENINGS

INSPECTION SLOTS

CENTERED BTW.

STIFFNERS

TYP. STIFFNER STEEL ANGLES

1" X 1" X

1

4

" TYP. CENTERED

BETWEEN INSPECTION OPENINGS

B-4756

BUREAU OF ENGINEERING

OFFICIAL RECORD

NOT TO SCALE

3%

SLO

PE

2'-0"

STEEL TROUGH

SECTION E-E

EE

2'-0"

F

F

C STEEL TROUGH

CURB INLET

L

SA

W C

UT

E

AC

H S

ID

E

1" (F

OR

8" C

UR

BS

)

3" (F

OR

6" C

UR

BS

)

9

0

°

EX

IS

T.

CU

RB

CURB

SAW CUT

LINE

CURB

SAW CUT

LINE

PLAN

3"

12"

2"

3-IN CAST-IN-PLACE

CONCRETE PAD

STEEL TROUGH

CURB INLET C

L

SECTION F-F

WITH STEEL COVER PLATE

90% COMPACTED

SOIL TYP.

3 - IN

CAST-IN-PLACE

CONCRETE PAD

3-IN

CAST-IN-PLACE

CONCRETE PAD

BELOW

2

'

-

0

"

3

16

" THICK

STEEL TROUGH

CURB INLET TYPE 3

STEEL TROUGH

3 - IN

CAST-IN-PLACE

CONCRETE PAD

EXISTING

GUTTER

EXISTING

CURB

3

16

" THICK

STEEL TROUGH

CAULK BETWEEN

CURB & TROUGH

ALL AROUND

(EACH SIDE)

CAULK BETWEEN

CURB & TROUGH

ALL AROUND

(EACH SIDE)

(OUTSIDE DIM.)

6"

2"

1 2

"

VA

RIE

S

4"-6"

WIDTH VARIES 24" TO 30"

(SEDIMENT TRAP)

9" COBBLE

STONES TYP.

"V" INVERT

SEE CURB OPENING

DETAIL1 (SHEET 2 OF 5)

1/2"X2" CENTERED

INSPECTION SLOTS

SPACED @ 4"O.C.

(TOTAL 8)

3

16

" X 1

1

2

" FLAT BAR

STIFFNERS TYPICAL

@ 6" O.C.

INSPECTION SLOTS

CENTERED BTW.

STIFFNERS

TYP.

3

16

" X 1

1

2

"

FLAT BAR STIFFNERS

@ 6" O.C

VERTICAL

3

16

" X 1

1

2

" FLAT BAR

STIFFNERS TYPICAL EACH END

@ 6" O.C.

HORIZONTAL

3

16

" X 1

1

2

" FLAT BAR

STIFFNERS TYPICAL

@ 6" O.C.

CU

RB

R

EM

OV

AL LIM

IT

3"

INSPECTION SLOTS

1 2

"

2"

R

1

4

"

(SEE NOTE 14)

APPROVED

SLIP RESISTANT

SURFACE

ALL WELDS ARE

3

16

"

INTERMITTENT FILLET

WELDS

5

8

" - 3

5

8

"

1

2

"

NO

SIN

G

EA

CH

E

ND

4

5

°

T

Y

P

GRIND EDGE OF

CURB FLUSH

B-4756

BUREAU OF ENGINEERING

OFFICIAL RECORD

1. ALL WORK SHALL CONFORM TO THE LATEST EDITION OF STANDARD SPECIFICATION FOR PUBLIC WORKS CONSTRUCTION (SSPWC) AS AMENDED BY THE

BROWN BOOK, LATEST EDITION, TO THE REQUIREMENTS OF STANDARD PLAN S-480 AS LISTED HEREON BELOW, AND LATEST RESIDENTIAL PARKWAY

LANDSCAPE GUIDELINE. ALL CONCRETE CLASS SHALL BE 525-C-2500 (MINIMUM STRENGTH 2,500 PSI).

2. THE WORK IN THIS STANDARD PLAN IS INTENDED FOR PARKWAYS SERVING RESIDENTIAL (RE, R-1, R-2, AND R-3) ZONES. IN ADDITION, BASIN CONSTRUCTION

SHALL ONLY BE PERMITTED WHERE THERE EXISTS A CONCRETE SIDEWALK IN GOOD CONDITION, SEPARATING THE PROPERTY FROM THE PARKWAY AND A

CONCRETE CURB AND GUTTER IN GOOD CONDITION ALONG THE ROADWAY PARALLEL TO THE PARKWAY AREA.

3. RESIDENTIAL PARKWAY BASINS SHOWN ONTHIS STANDARD PLAN HAVE CURB INLETS TO ALLOW FOR CAPTURE OF STREET RUN-OFF. THEY ARE DEPRESSIONS

CREATED IN THE AREAS BETWEEN THE STREET AND SIDEWALKS INTENDED FOR STORMWATER HARVESTING, FUNCTION AS ON-SITE SOURCE OF IRRIGATION,

AND CAPTURE STORMWATER RUN-OFF.

4. PARKWAY BASINS SHALL NOT BE CONSTRUCTED IN LOCATIONS WHERE THE LONGITUDINAL STREET SLOPE IS GREATER THAN FIVE (5) PERCENT. THE LENGTH

OF PARKWAY BASINS SHALL NOT BE GREATER THAN 20 FEET NOR LESS THAN 10 FEET.

5. PARKWAY BASIN SHALL BE LOCATED SO AS NOT TO REQUIRE ANY RELOCATION OF EXISTING UTILITIES SUCH AS STREET LIGHTS, TRAFFIC LIGHTS, UTILITY

POLES, POWER POLES, TRAFFIC SIGNALS, FIRE HYDRANTS, SANITARY SEWER LATERALS, STORM DRAINS, CONNECTIONS, AND OTHER SIMILAR UTILITIES AND

THEIR ASSOCIATED CONDUITS. A MINIMUM OF FlVE FEET RADIAL SETBACK SHALL BE PROVIDED BETWEEN THE PARKWAY AND ANY COMPONENTS OF SUCH

UTILITIES. CONTACT DIG-ALERT AT 811 AT LEAST 72 HOURS PRIOR TO COMMENCING WORK TO IDENTIFY UTILITY LOCATIONS. IF UTILITIES EXIST OR

UNMARKED UTILITIES ARE DISCOVERED IN OR WITHIN PROPOSED EXCAVATION, PARKWAY BASIN SHALL NOT BE CONSTRUCTED. SEE STANDARD PLAN S-480

FOR ADDITIONAL REQUIREMENTS.

6. UNLESS OTHERWISE NOTED, COBBLES STONES SHALL BE NATURAL ANGULAR STONES, 9-IN MINIMUM IN DIAMETER. EMBED A MINIMUM OF 5-INCHES INTO THE

GROUND IN AN INTERLOCKING PATTERN, WITH THE MOST ROUNDED PORTION ORIENTED OUTWARDLY.

7. A. ALL BASIN SLOPES EXCEEDING 1(VERTICAL): 3 (HORIZONTAL) SHALL BE REINFORCED WITH COBBLES.

B. TOP OF CONVENIENT STRIP AND ANY BUFFER ZONE ALONG PERIMETER OF BASIN SHALL BE

1

4

- INCH BELOW ADJACENT CURB, SIDEWALK OR HARDSCAPE.

C. WHERE NO PARKING IS PERMITTED, CONVENIENCE STRIP MAY BE REDUCED TO A ONE(1) FOOT BUFFER ZONE.

8. CURB INLETS SHALL MEET THE FOLLOWING CRITERIA:

A. WORK SHALL BE PERFORMED BY A LICENSED CONTRACTOR.

B. CURB INLETS SHALL BE SEPARATED FROM DRIVEWAY APRONS AND OTHER CURB OPENINGS BY A MINIMUM DISTANCE OF 5 FEET.

C. CURB INLETS SHALL BE LOCATED A MINIMUM OF 50 FEET FROM INTERSECTIONS, TRAFFIC SIGNALS AND STOP OR YIELD SIGNS.

D. CURB INLETS SHALL BE LOCATED A MINIMUM OF 10 FEET UPSTREAM OF AN EXISTING ROADWAY STORMWATER CATCH BASIN. OPENINGS WITHIN 100 FEET

DOWNSTREAM OF CATCH BASIN ARE PERMITTED.

E. CURB OPENINGS AT CURB INLETS SHALL BE MADE BY A SAW CUT METHOD AND FINAL GRINDING AS NEEDED.

9. PARKWAY BASINS SHALL NOT BE CONSTRUCTED WITHIN EXISTING TREE CANOPY DRIP LINE. CUTTING INTO OR OTHERWISE DAMAGING EXISTING TREE

ROOTS IS NOT PERMITTED. URBAN FORESTRY DIVISION PERMIT IS REQUIRED FOR ALL ROOT PRUNING. STREET TREE PERMIT IS REQUIRED FOR ALL TREES

PLANTED WITHIN THE PUBLIC RIGHT-OF-WAY. CONTACT THE BUREAU OF STREET SERVICES, URBAN FORESTRY DIVISION FOR STREET TREE PERMIT AND FOR

LISTING OF APPROVED TREE SPECIES. WHEN OPTIONAL NEW TREE IS PROPOSED WITHIN BASIN, A TREE SHELF SHALL BE PROVIDED AND LOCATED MID

HEIGHT BETWEEN THE FLOWLINE AND SIDEWALK.

10. BASIN SOIL: PARKWAY BASINS SHALL ONLY BE CONSTRUCTED IN AREAS WITH WELL DRAINING SOILS. THE MINIMUM SITE SOIL PERMEATION RATE SHALL BE

0.5 INCHES PER HOUR. HOWEVER, BASINS SHALL BE DESIGNED TO FULLY DRAIN THEIR MAXIMUM CAPACITY WITHIN 24 HOURS. CONDUCT SIMPLIFIED TESTING

FOR SOIL PERMEABILITY AS FOLLOWS:

DIG A HOLE 1 FT WIDE AND 1 FT DEEP. SCRATCH THE SIDES AND BOTTOM WITH THE TIP OF THE SHOVEL. FILL HOLE SLOWLY WITH WATER AND LET IT DRAIN

COMPLETELY. PLACE A RULER OR MEASURING TAPE IN THE HOLE AND REFILL THE HOLE SLOWLY WITH WATER IN THE PRESENCE OF THE INSPECTOR. AFTER

15 MINUTES, MEASURE HOW MANY INCHES OR FRACTION OF AN INCH THE WATER LEVEL HAS DROPPED. MULTIPLY THIS VALUE BY FOUR, AND REPORT THIS

FINAL VALUE AS “INCH PER HOUR” TO THE INSPECTOR.

11. FILL IN BOTTOM OF BASIN AND 1:6 MAX SLOPPED AREAS WITH 2” TO 4” OF MULCH. MULCH SHALL CONFORM TO STANDARD PLAN S-480 NOTE 5. G. (12) .

12. BASIN VEGETATIVE MATERIAL:

A. USE DROUGHT TOLERANT, LOW WATER USE VEGETATION. NATIVE PLANTS GENERALLY PROVIDE THE BEST OPTIONS FOR GREEN STREETS

INFRASTRUCTURE. WHEN MAKING SELECTION, COMPLY WITH LIMITS OUTLINED IN THE RESIDENTIAL PARKWAY LANDSCAPE GUIDELINE.

B. VEGETATIVE MATERIAL SELECTED SHALL CONFORM TO STANDARD PLAN S-480 NOTE 5. G.(10) AND IN GENERAL CONFORMANCE WITH PLANT LISTING IN

STANDARD PLAN S-484 ALTHOUGH ALTERNATE PLANTS MAY BE CONSIDERED. OPTIONS MAY CONSIST OF SHRUBS, WILDFLOWERS, NATIVE BUNCH

GRASSES, ETC. FINAL DESIGN SHALL BE REVIEWED BY THE BUREAU OF STREET SERVICES (BSS) FOR FINAL APPROVAL.

C. FOR CONVENIENT STRIP, PROVIDE DROUGHT TOLERANT TURF-SUBSTITUTE GROUND COVER PER THE RESIDENTIAL PARKWAY LANDSCAPE GUIDELINE

(RPLG) WITH APPROPRIATE HEADER STRIP, UNLESS ADJACENT COBBLES ARE ALSO INSTALLED. FINAL DESIGN SHALL BE REVIEWED BY THE BUREAU OF

STREET SERVICES (BSS) FOR FINAL APPROVAL.

D. CHOOSE PLANTS THAT MINIMIZE OR ELIMINATE THE USE OF FERTILIZERS OR PESTICIDES AND THAT ARE ABLE TO SUSTAIN GROWTH WHERE THE

CONTINUOUS LOW BASE FLOW AND FLAT SLOPES ARE LIKELY TO RESULT IN SATURATED SOIL CONDITIONS. USE SPECIES THAT WOULD BE ABLE TO

WITHSTAND PERIODIC WETTING, INCLUDING TOTAL SUBMERGENCE FOR SHORT PERIODS IN SUMMER AND CONTINUED WETTING AND OCCASIONAL

PERIODS OF SUBMERGENCE IN WINTER TIME.

E. PROVIDE APPROPRIATE IRRIGATION FOR PLANT ESTABLISHMENT.

13. MAINTENANCE REQUIREMENTS:

A. PROPERTY OWNERS CONSTRUCTING A PARKWAY BASIN SHALL MAINTAIN, AND REGULARLY INSPECT BASIN. THIS SHALL INCLUDE KEEPING THE BASIN FREE OF LITTER,

ANIMAL DROPPINGS, FOUL ODORS, WEEDS, DEBRIS, AND STANDING WATER AS WELL AS ENSURE PERMEABILITY IS MAINTAINED. PROPERTY OWNERS SHALL SUBMIT A

“COVENANT AND MAINTENANCE” AND A “WAIVER OF DAMAGES, INDEMNIFICATION” AGREEMENTS TO THE CITY FOR REVIEW AND APPROVAL BEFORE

RECORDING THE AGREEMENTS WITH THE LOS ANGELES COUNTY REGISTRAR-RECORDER. A COPY OF THE RECORDED “COVENANT AND MAINTENANCE”

AND “WAIVER OF DAMAGES, INDEMNIFICATION” AGREEMENTS SHALL BE FILED WITH THE CITY ENGINEER BEFORE A WORK PERMIT CAN BE ISSUED.

B. REMOVE ACCUMULATED SEDIMENT FROM BOTTOM OF BASIN TO RETAIN DESIGN DEPTH. PRUNE VEGETATION TO PRESERVE VISIBILITY AND PREVENT

OBSTRUCTION OF TRAVEL LANES, PEDESTRIAN PATHWAYS, AND CONVENIENT STRIP. REMOVE INVASIVE WEEDS BEFORE THEY CAN ESTABLISH AND

PROLIFERATE.

C. SEE STANDARD PLAN S-480, NOTES 8 & 9 FOR ADDITIONAL REQUIREMENTS.

14. STRUCTURAL STEEL:

A. STRUCTURAL STEEL SHALL CONFORM TO ASTM A36. THE CONTRACTOR SHALL VERIFY ALL DIMENSIONS AND CONDITIONS IN THE FIELD BEFORE STARTING WORK AND SHALL SUBMITSHOP DRAWINGS TO THE ENGINEER FOR APPROVAL PRIOR TO FABRICATION.

B. ALL WELDING SHALL BE DONE USING APPROPRIATE E70XX ELECTRODES.

C. STRUCTURAL STEEL SHALL BE HOT-DIP GALVANIZED AFTER FABRICATION.

NOTES

B-4756

BUREAU OF ENGINEERING

OFFICIAL RECORD