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TYPICAL 351f x 24" ARCH PIPE DETAIL
N.T.S.
AREA = 4.5 SF
EQUIVALENT DIA. = 30"
NOTES:
1. ALL DIMENSIONS ARE TO THE INSIDE CORRUGATION CREST UNLESS NOTED OTHERWISE.
2. ALL DIMENSIONS ARE SUBJECT TO MANUFACTURING TOLERANCES.
3. RISE AND SPAN DIMENSIONS ACCOUNT FOR AASHTO AND ASTM SPECIFICATION
ALLOWABLE TOLERANCES FROM NOMINAL DIMENSIONS.
2 2/3" x 1/2" CORRUGATION - STEEL AND ALUMINUM CMP
EDGE SPACING EQUAL ON BOTH SIDES
COIL WID
OP = 3.76 SQ IN/SQ FT
NOTES:
1. PERFORATIONS MEET AASHTO AND ASTM SPECIFICATIONS.
2. PERFORATION OPEN AREA PER SQUARE FOOT OF PIPE IS BASED
ON THE NOMINAL DIAMETER AND LENGTH OF PIPE.
3. DIMENSIONS SUBJECT TO MANUFACTURER'S TOLERANCES.
4. ALL HOLES 3/8" 0.
EXFILTRATION AREA
STANDARD PERFORATION PATTERNS
APPROXIMATE AREA PER LINEAR FOOT OF PIPE
CORRUGATION PATTERN
PIPE
2 2/3" x 1/2"
3" x 1"
5" x 1"
ULTRA FLO
30" 0
30.5 SQ. IN.
32.3 SQ. IN.
NOTES:
• GAGE AND COATING LIMITATIONS APPLY. 5" x 1" IS NOT AVAILABLE IN
ALUMINUM.
• DIMENSIONS SUBJECT TO MANUFACTURER'S TOLERANCES.
TYPICAL PERFORATION DETAIL
NOT TO SCALE
0
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KMAY BE
4S DEFINED BY
D.
FILL APPLIES
E THE FIRST 4"
LIVE LOADS NOT TO EXCEED CONVENTIONAL HIGHWAY LOADS.
MINIMUM TRENCH WIDTH MUST ALLOW ROOM FOR PROPER COMPACTION OF HAUNCH MATERIALS UNDER THE PIPE ARCH.
THE TRENCH WIDTH IS THE MINIMUM AMOUNT REQUIRED FOR PROPER INSTALLATION AND TO SUPPORT HORIZONTAL PRESSURE FROM THE
PIPE. THE MANUFACTURER'S SUGGESTED MINIMUM VALUE IS: 1.5S + 12".
SPAN
MIN.
COVER
CORR.
PROFILE
17"-83"
12"
2 2/3" x 1/2"
<53"
12"
3" x 1 " & 5" x 1 "
54"-66"
15"
3" x 1" & 5" x I"
67"-103"
18"
3" x 1" & 5" x 1"
104"-117"
21 "
3" x 1 " & 5" x 1 "
11811 14211
24"
3" x 1 " & 5" x 1 "
1a MINIMUM EMBANKMENT WIDTH (IN FEET) FOR INITIAL FILL ENVELOPE:
3.OS BUT NO LESS THAN S + 4'0".
2 FOUNDATION SHALL BE WELL CONSOLIDATED, STABLE & CAPABLE OF SUPPORTING FILL MATERIAL LOAD.
3 OPEN -GRADED GRANULAR BEDDING MATERIAL SHALL BE A RELATIVELY LOOSE MATERIAL THAT IS ROUGHLY SHAPED TO FIT THE BOTTOM OF
THE PIPE ARCH, 4" TO 6" IN DEPTH. SUGGESTED PARTICLE SIZE IS 1/2 CORRUGATION DEPTH. THE WIDTH OF BEDDING SHOULD BE THE EXTENTS
OF THE INVERT OF THE PIPE ARCH.
4 CORRUGATED STEEL PIPE ARCH (CSPA) [HEL-COR PIPE ARCH].
5 HAUNCH ZONE MATERIAL SHALL BE HAND SHOVELED OR SHOVEL SLICED INTO PLACE TO ALLOW FOR PROPER COMPACTION. REFER TO AASHTO
26.5.2, 26.5.4 OR ASTM A798 10.3 TO PROPERLY ADDRESS CORNER BEARING PRESSURE.
5a THE BACKFILL MATERIAL SHALL BE A FREE -DRAINING, ANGULAR, WASHED -STONE PER AASHTO M 43 SIZE #3 WITH A %" - 2" PARTICLE SIZE OR
APPROVED EQUAL. MATERIAL SHALL BE PLACED IN 12" MAXIMUM LIFTS AND SHALL BE WORKED INTO THE PIPE HAUNCHES BY MEANS OF
SHOVEL -SLICING, RODDING, AIR -TAMPER, VIBRATORY PLATE OR OTHER EFFECTIVE METHODS. COMPACTION IS CONSIDERED ADEQUATE WHEN
A DENSITY EQUIVALENT TO 90% STANDARD PROCTOR IS ACHIEVED OR WHEN NO FURTHER YIELDING OF THE MATERIAL IS OBSERVED UNDER
THE COMPACTOR OR UNDER FOOT. THE PROJECT ENGINEER OR HIS REPRESENTATIVE MUST BE SATISFIED WITH THE LEVEL OF COMPACTION.
INADEQUATE COMPACTION CAN LEAD TO EXCESSIVE PIPE DEFLECTIONS AND SETTLEMENT OF THE SOILS OVER THE SYSTEM. BACKFILL SHALL
BE PLACED SUCH THAT THERE IS NO MORE THAN A TWO -LIFT DIFFERENTIAL BETWEEN THE SIDES OF ANY PIPE IN THE SYSTEM AT ALL TIMES
DURING THE BACKFILL PROCESS. BACKFILL SHALL BE ADVANCED ALONG THE LENGTH OF THE SYSTEM AT THE SAME RATE TO AVOID
DIFFERENTIAL LOADING ON ANY PIPES IN THE SYSTEM.
6 INITIAL OPEN GRADED GRANULAR BACKFILL ABOVE PIPE ARCH MAY INCLUDE ROAD BASE MATERIAL (AND RIGID PAVEMENT IF APPLICABLE).
SEE TABLE ABOVE. INITIAL BACKFILL OF 7.5" PER ENGINEER OF RECORD.
6a TOTAL HEIGHT OF COMPACTED COVER IS MEASURED FROM TOP OF PIPE ARCH TO BOTTOM OF FLEXIBLE PAVEMENT OR TOP OF RIGID
PAVEMENT.
7 FINAL BACKFILL MATERIAL SELECTION AND COMPACTION REQUIREMENTS SHALL FOLLOW THE PROJECT PLANS AND SPECIFICATIONS PER THE
ENGINEER OF RECORD. PER ENGINEER OF RECORD, 4.5" CLEAN ROCK WITH 40% POROSITY.
NOTES:
• GEOTEXTILE SHALL BE USED AS REQUIRED TO PREVENT SOIL MIGRATION.
• FOR MULTIPLE BARREL INSTALLATIONS THE RECOMMENDED STANDARD SPACING BETWEEN
PARALLEL PIPE ARCH RUNS SHALL BE SPAN/2 BUT NO LESS THAN 12", OR 36" FOR PIPE SPANS
108" AND LARGER. CONTACT YOUR CONTECH REPRESENTATIVE FOR NONSTANDARD SPACING.
TYPICAL BACKFILL DETAIL
NOT TO SCALE R-408343
The design and information shown on this drawing is provided
as a service to the project owner, engineer and contractor by
Neither this
Contech Engineered Solutions may
drawing, nor any part thereof, may be used, reproduced or
be used, reproduced
modified in any manner without the prior written consent of
Contech. xpresFailuretocclaimssdoneatthe yorreponsibliityfor
Contech expressly disclaims any liability or responsibility for
such use.
If discrepancies between the supplied information upon which
the drawing is based and actual field conditions are encountered
assite
on work progresses, these discrepancies must be reported
to Contech immediately for re-evaluation of the design. Contech
accepts no liability for designs based on missing, incomplete or
inaccurate information supplied by others.
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C ;II/ N T E C H®
ENGINEERED SOLUTIONS LLC
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CMP DETENTION SYSTEMS
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PROPOSAL
DRAWING
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35 x 24 PERFORATED UNDERGROUND RETENTION SYSTEM -624723-030
FUPC (FUNDAMENTALIST UKRANIAN PENTECOSTALIST CHURCH)
RENTON,WA
SITE DESIGNATION: FUPC BASIN #3
PROJECT No.:
624723
SEC. No.:
030
DATE:
3/3/2020
DESIGNED:
KET
DRAWN:
JPC/DJB
CHECKED:
JSM/JMD
APPROVED:
JSM
SHEET NO.:
56 OF 65
AR
DATE
REVISION DESCRIPTION
BY
BASE MAP/TOPOGRAPHY PROVIDED BY
OTHERS. ABOSSEIN ENGINEERING (AE)
CANNOT BE HELD LIABLE FOR
ACCURACY. CONTRACTOR SHALL FIELD
VERIFY GRADES, UTILITIES AND ALL
OTHER EX FEATURES & CONDITIONS. IF
CONDITIONS ARE NOT AS SHOWN &/OR
PLANS CANNOT BE CONSTRUCTED AS
SHOWN, CONTACT AE PRIOR TO
CONSTRUCTION.
/ O
1
�U00001) Call before you dig
PERMIT SUBMITTAL I I I I SURVEYED: GEODETIC SURVEYING
SERVICE
DESIGNED:
DRAWN:
CHECKED:
NO. I REVISION I BY I DATE IAPPRI PROVED:
SCALE:
AS INDICATED
ON DRAWING
ONE INCH
AT FULL SCALE
IF NOT ONE INCH
SCALE ACCORDINGLY
VERTICAL: Ni 1988
HORIZONTAL: NAD 1983/1991
DATUM
CALL 811 (2) BUSINESS DAYS
BEFORE YOU DIG
(UNDERGROUND UTILITY
LOCATIONS ARE APPROXIMATE)
CITY OF
RENTON
Planning/Building/Public Works Dept.
R-408343
IN COMPLIANCE WITH CITY OF RENTON STANDARDS
DEVELOPMENT ENGINEERING ill
Nathan Janders 03/19/2020 '
FIRST UKRAINIAN PENTECOSTAL CHURCH
3811 NE 21 ST ST
RENTON, WA 98056
SITE DESIGNATION: FUPC BASIN #3
DATE:
02-25-20
FIELDBOOK:
PAGE:
DRAWING NO:
SHEET: OF.
56 65
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