Plans (101) •
1 I
3/4-IN.-MINUS CRUSHED ROCK WITH
SEAL WITH ON-SITE I LESS THAN 5%PASSING NO.200 SIEVE
/IMPERVIOUS MATERIAL (WASHED ANALYSIS)
SLOPE TO DRAIN
WA 4
2 IN.— ° °.n „ CONCRETE SLAB °
V
/ . .. .. d
• °<Q a • o4.,...d..40.0°.1 •siz;�,• ,VARIES • ,w•
VAPOR-RETARDING MEMBRANE SYSTEM
•. • to : • • 'to•O to•a t� (2 IN.MIN) 8 IN.(MIN) (SEE NOTE 1)
•
1 •'�;I��bi� v
1 <n °° ��• 1 VARIES(2 IN.MIN.)
A
GRANULAR BACKFILL COMPACTED I 1 FT <. \
TO ABOUT 95%OF THE MAXIMUM (MIN.) ° ° SEE DETAIL'A'FOR TYPICAL
DRY DENSITY AS DETERMINED BY ROCK OF UP TO 2-IN.SIZE WITH 4-IN.-DIAMETER PERFORATED DRAIN PIPES
ASTM D 698 I d. UNDERSLAB RECOMMENDATIONS NOT MORE THAN 2%PASSING THE
NO,200 SIEVE(WASHED ANALYSIS) ARE TYPICALLY PLACED ON 20-FT CENTERS
AND SLOPED TO DRAIN(SEE NOTE 2)
TEMPORARY ( °
• CONSTRUCTION J•
4 a °. DETAIL 'A'
SLOPE d .
., NOT TO SCALE
I •1•
11/2 TO3/4 GRAVEL WITH LESS THAN -. ' °a
2%PASSING THE NO.200 SIEVE °
(WASHED ANALYSIS) UNDERSLAB DRAIN
4-1N.-DIAMETER PERFORATED PLASTIC
NOTES:
DRAIN PIPE,SLOPE TO DRAIN
1) A VAPOR-RETARDING MEMBRANE SYSTEM IS RECOMMENDED FOR
MOISTURE-SENSITIVE AREAS AND SHOULD BE INSTALLED IN
ACCORDANCE WITH MANUFACTURER'S RECOMMENDATIONS.
2) INTERNAL 44N.-DIAMETER PERFORATED DRAIN PIPES ARE TYPICALLY
PERIMETER DRAIN NOT NECESSARY IN THOSE AREAS WHERE THE FINISH FLOOR WILL BE
ABOVE EXISTING SITE GRADES.
0 G R El TIGARD TUALATIN SCHOOL DISTRICT
TEMPLETON ELEMENTARY SCHOOL
TYPICAL SUBDRAINAGE
DETAILS
JUNE 2017 JOB NO.5970-C FIG.3