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DATE: SEPTEMBER 13, 2006
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WEAKENED PLANE JOINT
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GALVANIZED STEEL GRATE FRAME AND GRATE
SEE STD PLAN CD-412
WEAKENED PLANE JOINT
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OPTIONAL CONSTRUCTION
JOINTS. SEE NOTE 3
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SEE STEP DETAIL
INLET
PIPE
FLOW LINE GRADE
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WEEPHOLE DETAIL
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SEE NOTE 1
TYPE "A" INLET
DIMENSION "A" (INCHES)
UPSTREAM CURB GRADE "A" UPSTREAM "A" DOWNSTREAM
2% AND LESS 24 24
3% 36 24
4% 48 24
5% 60 24
6% 72 24
7% 84 12
8% 96 12
9% 108 12
10% AND GREATER 120 12
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SECTION A-A
SCALE: NOT TO SCALE
DATE: SEPTEMBER 13, 2006
DRAWN BY: LDH
V:\CAD\NEW STANDARDS
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SHEET 2 OF 5
CD-40 1
2'-8"
PLACE 1.0 CUBIC
FOOT OF CLASS 1
PERMEABLE
MA TERIAL, WRAPPED
IN FIL TER FABRIC, AT
FRONT WEEPHOLE
OPTIONAL
CONSTRUCTION
JOINTS. SEE NOTE 3
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FLOW LINE GRADE
SLOPE - 1.6%
TO OUTLET
SEE NOTE 1
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SECTION B-B
GRA TE NOT SHOWN
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ALL DIMENSIONS ABOVE THIS
LINE ARE IDENTICAL TO A
TYPE "A" STANDARD INLET
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5' x 5' x 10" TOP SLAB
SECTION OF
TYPE "A" OPENING
ON PRE CAST MANHOLE BARREL
REFER TO STD PLAN CD-407
SCALE: NOT TO SCALE
DATE: SEPTEMBER 13, 2006
DRAWN BY: LDH
V:\CAD\NEW STANDARDS
TYPE "A" INLET
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PUBLI WORKS DIR~CT;r CD-40 1
WEEPHOLE
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TOP OF
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SIDE WEEPHOLE DETAIL
SEE NOTE 4
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AGGREGA TE BASE
CLASS 2 PERMEABLE
MATERIAL
3" SCHEDULE 40
- PERFORATED PVC PIPE
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STEP DETAIL
SEE NOTE 6
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SECTION OF
TYPE "A" OPENING
ON MANHOLE BASE
REFER TO STD PLAN CD-407, CD-408 AND CD-409
SCALE: NOT TO SCALE
DATE: SEPTEMBER 13, 2006
DRAWN BY: LDH
V:\CAD\NEW STANDARDS
TYPE "A" INLET
APPROVED: ~'~)
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'PUBiJ(?'WORKS DIRECTO CD-40 1
NOTES:
1. CONSTRUCTION JOINTS ARE OPTIONAL WHERE SHOWN, OTHER LOCATIONS ARE SUBJECT TO THE
APPROVAL OF THE PUBLIC WORKS DEPARTMENT. KEY DIMENSION - 3/4" x 1 1/2".
2. WHEN DIMENSION "H" EXCEEDS 6', USE A MANHOLE BASE WITH A TYPE "A" INLET TOP.
3. CONSTRUCTION JOINTS SHOWN ARE PERMITTED WHEN TOP PORTION OF INLET IS TO BE
CONSTRUCTED MONOLlTHICALL Y WITH CURB AND SIDEWALK, IN WHICH CASE THE FOLLOWING SHALL
APPL Y:
A. CONCRETE ABOVE CONSTRUCTION JOINT SHALL BE CLASS 3 (505 LBS PCC PER CUBIC YARD).
B. CONCRETE BELOW CONSTRUCTION JOINT SHALL BE CLASS 2 (590 LBS PCC PER CUBIC YARD).
C. CONCRETE JOINT SHALL BE LOCATED AT PAVEMENT SUBGRADE.
WHEN INLET IS CONSTRUCTED AS A SINGLE UNIT, ALL CONCRETE SHALL BE CLASS 2.
4. WEEPHOLE ELEVATION VARIES DEPENDING ON THE DEPTH OF THE ADJOINING PAVEMENT SECTION.
IT SHALL BE AT, OR SLIGHTLY BELOW, THE PAVEMENT SECTION SUBGRADE ELEVATION WITH A
MINIMUM DEPTH OF 15" BELOW THE CURB INLET FLOWLINE. THE SIDE WEEPHOLE SHALL BE USED
A T ALL "SUMP" LOCATIONS. EDGE DRAINS OR SIDE WEEPHOLES AT OTHER LOCATIONS MAYBE
REQUIRED AS SHOWN ON THE CONSTRUCTION PLANS OR BY THE PUBLIC WORKS DEPARTMENT.
WHERE THE SIDE WEEPHOLES OR EDGE DRAINS ARE NOT REQUIRED, THESE WEEPHOLES SHALL
CONFORM TO THE FRONT WEEPHOLE AS SHOWN ON THIS PLAN.
5. SEE STANDARD PLAN CD-302 FOR WEAKENED PLANE JOINT DETAIL.
6. STEPS SHALL BE STEEL REINFORCED POLYPROPYLENE PLASTIC, SANTA ROSA CAST PRODUCTS CO.
DRAWING NO. PS2-PF OR EQUIVALENT. STEPS TO BE CAST IN PLACE OR PRESS FITTED INTO
PROVIDED HOLES AS PER MANUFACTURER. INSTALL STEPS WITH LOWEST RUNG 12" MAXIMUM
ABOVE THE FLOOR, NOT TO EXCEED 16" AND SHALL BE UNIFORM THROUGHOUT THE LENGTH OF
THE WALL. PLACE STEPS REQUIRED WHERE DISTANCE FROM FLOOR OF INLET TO TOP OF GRATE
IS 4' OR LESS.
7. ALL INLETS SHALL HAVE A "DRAINS TO CREEK" (STD CD-704) METAL MARKER APPLIED AS
DIRECTED BY THE INSPECTOR OR RESIDENT ENGINEER. THE MARKER SHALL BE APPLIED
FOLLOWING MANUFACTURER'S RECOMMENDATIONS. EXCEPT PCC SURFACES MAYBE MECHANICALLY
CLEANED IN LIEU OF SANDBLASTING. THE MARKER MAYBE PROVIDED BY THE PUBLIC WORKS
DEPARTMENT, CHECK YOUR PERMIT CONDITIONS OR CONTRACT SPECIAL PROVISIONS.
8. ANY PRE -CAST INLET NEEDS THE APPROVAL OF THE CITY ENGINEER AND MAY NEED SPECIAL
BACKFILL REQUIREMENTS.
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TYPE "A" INLET
SCALE: NOT TO SCALE
DATE: SEPTEMBER 13, 2006
DRAWN BY: LDH
V:\CAD\NEW STANDARDS
APPROVED, . ~
-A.JA SHEET 5 OF 5
~~~IRECTOR CD-40 1