CROSS SECTION (NO SCALE) ELEVATION (NO SCALE)
Drawing Labels & Annotations
CEMENT MORTAR CAP
CONCRETE BLOCKS (SEE NOTE 7)
12" OF NATIVE MATERIAL
BLOCKS TO BE STAGGERED
3/4" CRUSHED ROCK WRAPPED IN GEOTEXTILE FABRIC
12" MIN. WIDTH
V-BARS (SHOWN FOR 16" SPACING)
1- #4 CONTINUOUS
4" PERFORATED PIPE, SCH. 40 PVC WRAPPED IN GEOTEXTILE FABRIC
X-BARS
NO. 3 BARS AT 12" O.C.
DOWELS
PLACE A 6" LAYER OF 3/4" CRUSHED ROCK OR COMPACTED CLASS 2 AGGREGATE BASE UNDER FOOTING WHERE SOFT GROUND IS ENCOUNTERED.
| H | A | B | T | BARS | |
|---|---|---|---|---|---|
| V-BARS | X-BARS | ||||
| FT.-IN. | IN. | FT.-IN. | IN. | ||
| 3'-4" | 8" | 2'-4" | 9" | NO. 3 AT 32" | NO. 3 AT 24" |
| 4'-0" | 10" | 2'-9" | 9" | NO. 4 AT 32" | NO. 3 AT 24" |
NOTES:
- CONCRETE FOR FOOTING TO BE CLASS "A" (6 SACK 3000 PSI) WITH 3/4" AGGREGATE AND 4 INCH MAX. SLUMP.
- FILL ALL CELLS WITH 7 SACK CONCRETE WITH 3/8" AGGREGATE OR 3: 1 MORTAR.
- DOWELS SHALL BE SAME IN SIZE AND SPACING AS V-BARS. THEY SHALL PROJECT 40 BAR DIAMETERS, 24 INCH MIN. INTO THE CELLS AND EXTEND TO THE TOE OF FOOTING. LAPPING BARS SHALL BE TIED.
- WALLS SHALL NOT BE BACKFILLED UNTIL 7 DAYS AFTER CELLS ARE FILLED.
- WALLS OVER 100' LONG SHALL HAVE VERTICAL EXPANSION JOINTS. WALLS OVER 50' LONG SHALL HAVE VERTICAL CONTRACTION JOINTS. SEE AGENCY ENGINEER FOR DETAILS.
- NO CONCRETE SHALL BE PLACED UNTIL FORMS AND STEEL HAVE BEEN INSPECTED AND APPROVED BY THE AGENCY ENGINEER.
- BLOCKS SHALL BE GRADE N OR BETTER (f'c=1,500 PSI).
- 8. NO FRONT FACE WEEP HOLES ALLOWED IF SIDEWALK OR PAVEMENT SLOPES AWAY FROM WALL.
- SUBJECT TO THE APPROVAL OF AGENCY ENGINEER, DESIGN FOR DRAINAGE CONVEYANCE BEHIND WALL MAY BE MODIFIED TO UTILIZE PREFABRICATED DRAINAGE DEVICES.