HomeMy WebLinkAboutC3.4_Site Grading Details Q O U
SITE GRADING = CO a)
THIS IS NOT A STRUCTURAL NO DEPRESSION AT FENCELINE. REAR LOT LINE Q � .a
1. ALL GRADING SHALL BE IN ACCORDANCE WITH THE APPROVED GRADING PLAN. DETAIL AND IS SHOWN FOR MIN OR MAX SWALE TERMINATED TO MAINTAIN V_
GRADING PURPOSES ONLY. TOP OF WALL ALL RUNOFF ON INDIVIDUAL LOT. J
2. A CONSTRUCTION PROJECT SCHEDULE SHALL BE SUBMITTED TO THE ENGINEER FOR APPROVAL AND SHALL BE PERIODICALLY UPDATED IF CONDITIONS OR - - REAR LOT LINE _ Z w .0
SCHEDULES CHANGE. CONSTRUCTION SHALL BE SCHEDULED TO MINIMIZE SOIL DISTURBANCE. ALL DISTURBED SURFACES SHALL BE STABILIZED IN A Z ~
TEMPORARY OR PERMANENT MANNER AS APPROPRIATE DURING CONSTRUCTION TO PREVENT SOIL EROSION. Z
" MIN 20-FT MIN LENGTH SLOPE VARIES Z_ �
3. THE CONTRACTOR SHALL REVIEW AND FOLLOW ALL RECOMMENDATIONS PROVIDED IN THE GEOTECHNICAL ENGINEERING REPORT PREPARED BY SITE 6 a 2 SEE LOT SWALE z
CONSULTING. LLC, DATED 03/19/2019. 8" RECOMMENDED a DETAIL THIS SHEET = a
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4. ORGANIC SOILS SHALL BE REMOVED AS RECOMMENDED IN THE GEOTECHNICAL REPORT AND WASTED OR STOCKPILED FOR USE IN FINE GRADING. O 1% MIN. _
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BOTTOM OF FOOTING MIN - i w
5. PRIOR TO COMMENCING STRUCTURAL FILL, THE EXISTING SITE DEBRIS MUST BE REMOVED, THE NATIVE SOILS STRIPPED OF ALL ORGANIC MATERIAL, H Z
OR MAX ELEVATION CAN 24" En W
STOCKPILES OF SUITABLE MATERIAL SHALL BE SEGREGATED FROM UNSUITABLE MATERIALS. ALL WASTE AND HIGHLY ORGANIC OR OTHERWISE CONTAMINATED BE CALCULATED BY TOP Z f�_ Z 5% MIN. � W U)
SOILS SHALL BE REMOVED FROM THE SITE AND NOT STOCKPILED FOR ANY PERIOD OF TIME. WHERE PRACTICAL, STOCKPILES OF MATERIALS TO BE USED OF WALL SUBTRACT 30" I I IIIw
AS STRUCTURAL FILL SHALL BE PLACED ON NATIVE, STRIPPED SOILS TO PREVENT CONTAMINATION.
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6. EXACT REMOVAL DEPTHS OF ORGANIC MATERIALS SHALL BE DETERMINED DURING GRADING OPERATIONS BY A QUALIFIED GEOTECHNICAL REPRESENTATIVE I 5 (nn Q0
MID POINT f !c Z w
D/OR AN THE PROJECT ENGINEER, AND SHALL BE BASED ON SUBGRADE SOIL TYPE, COMPOSITION, AND FIRMNESS OR SOIL STABILITY. OF LOT W o
7. ALL MATERIAL USED FOR STRUCTURAL FILL SHALL MEET THE REQUIREMENTS FOR STRUCTURAL FILL AS DESCRIBED IN THE GEOLOGY AND GEOTECHNICAL 8 J U) -
REPORT. STRUCTURAL FILL MUST BE USED WHERE FILL HEIGHT EXCEEDS ONE (1) VERTICAL FOOT OR WHERE RECOMMENDED BY REFERENCED GEOTECHNICAL
REPORT. Z Z w
8. STRUCTURAL FILL SHALL BE PLACED IN ACCORDANCE WITH THE REQUIREMENTS OF THE GEOLOGY AND GEOTECHNICAL REPORT AND COMPACTION SHALL TYPICAL FOOTING III
BE SUPERVISED BY A QUALIFIED GEOTECHNICAL REPRESENTATIVE AND/OR THE PROJECT ENGINEER. MATERIAL SHALL BE PLACED IN 8" LIFTS UNLESS ELEVATION DETAIL
OTHERWISE APPROVED BY THE GEOTECHNICAL ENGINEER. NOT TO SCALE
9. ALL STRUCTURAL FILL SHALL BE COMPACTED TO A MINIMUM OF 95% OF MAXIMUM DRY DENSITY AS DETERMINED BY ASTM D 1557 FOR BUILDING LOTS I I r I � ENLS�NC�'L
OR D 698 FOR ROAD AREAS. ONE IN DENSITY TEST PER LIFT SHALL BE CONDUCTED FOR EVERY 5000 SQUARE FEET OF LIFT AREA FOR BUILDING I I ��G F6 F�
STRUCTURES (ONE PER LOT) OR FOR EVERY 100 LINEAR FEET OF LIFT AREA IN PARKING AND DRIVEWAY AREAS. I Q� 10/23/2023
10. SHALLOW EXCAVATIONS THAT DO NOT EXCEED 4 FEET MAY BE CONSTRUCTED WITH SIDE SLOPES APPROACHING VERTICAL. BELOW THIS DEPTH, SLOPES SIDEWALK SIDEWALK 20218
SHALL NOT EXCEED 1-1/2 FOOT VERTICAL TO 1 FOOT HORIZONTAL.
11. FINAL SITE GRADES (CUT OR FILL) SHALL NOT EXCEED 1 FOOT VERTICAL TO 2 FEET HORIZONTAL. CURB & STREET CURB &J STREET v0 9TF OF VIP P�
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12. PRIOR TO PLACEMENT OF STRUCTURAL FILL, THE GROUND SHALL BE PREPARED IN ACCORDANCE WITH APPENDIX J, 'GRADING' OF THE INTERNATIONAL GUTTER GUTTER B DVNG
BUILDING CODE. FIGURE J107.3 AND AS DIRECTED BY THE PROJECT ENGINEER AND/OR THE GEOTECHNICAL ENGINEER.
13. ALL FINAL GRADING SHALL EMPLOY SLOPE ROUNDING AT TOPS OF SLOPES AND AT CHANGES IN HORIZONTAL SLOPE ALIGNMENT TO FACILITATE FRONT YARD DRAINAGE IS TO BE ROUTED CHECKED BY:
REVEGETATION AND PROVIDE AN ASTHETICALLY ACCEPTABLE APPEARANCE. TO FRONT OF LOT (PUBLIC ROADWAY). ALL DRAINAGE IS TO BE ROUTED DAVID A. BAILEY P.E.
REAR YARD DRAINAGE IS TO BE ROUTED TO FRONT OF LOT (PUBLIC DRAWN BY:
14. DURING ALL GRADING OPERATIONS AND UNTIL THE ESTABLISHMENT OF PERMANENT REVEGETATION, THE CONTRACTOR SHALL PROVIDE EROSION AND TO REAR OF LOT AND RETAINED ON LOT ROADWAY) JBD
SEDIMENT CONTROL MEASURES IN ACCORDANCE WITH THE APPROVED STORMWATER PREVENTION PLAN. (VIA CONSTRUCTED INFILTRATION SWALE)
OR ROUTED TO ADJACENT COMMON LOT
TYP E 'A' LOT TYP E 'B' LOT
TOP of FILL DRAINAGE DETAIL DRAINAGE DETAIL
FILL SLOPE NOT TO SCALE
NOT TO SCALE
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F- 2:1 MAX NATURAL SLOPE CAPACITY OF W
SWALE AS SHOWN z_ w
FILL SOILS - ON SITE - 4.0 ft^3/ft o
O MATERIAL AS APPROVED 0 w
BY GEOTECHNICAL ENGINEER
~8'�8' TYP a W
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BUILDING a Lo >
H S5 FOUNDATION 4-1 z
2" DRAIN ROCK
w o 1 REMOVE UNSUITABLE
O MATERIAL MON COVER (OPTIONAL)
O BENCH HEIGHTS SHALL NO SOD OVER
m NOT EXCEED 5 FEET SAND LENS co? r 1
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_H/5 OR 2' MIN STRUCTURAL FILL PLACEMENT =___-__ "'� •
KEY MUST BE PROVIDED PER IBC FILTER FABRIC SIDES & TOP --- CONST. SAND LENS
J107.3 IF FILL HEIGHT EXCEEDS 5 BASED ON 2012 IBC FIGURES J107.3 & J108.1 OF INFILTRATION WINDOW _ _-_-_ (ASTM C-33 0 0
VERTICAL FEET. NOT TO SCALE -__-__-_ SAND REQUIRED)
EXCAVATE TO INFILTRATING -I - SEASONAL HIGH Z
MATERIALS WHERE SAND LENS IS -_-_- GROUNDWATER TABLE
SPECIFIED (20 LENS SHOWN IN - - - MUC&I REFER TO SITE
PLAN VIEW ON SHEETS 3.3). GEOTECHNICAL REPORT BY L
BACKFILL WITH REJECT SAND OR J SITE CONSULTING, LLC, r
-3/4" CRUSHED GRAVEL. W~ Z
DATED 03/19/2019. Z
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NOTES: LENS CAN BE RELOCATED IF ? "
1. THE BUILDING ENVELOPES ARE BASED ON CITY OF MERIDIAN SETBACKS NECESSARY TO AVOID UTILITIES z cD 24 CONTRACTOR TO NOTIFY 0
APPROVED WITH THE CENTERVILLE SUBDIVISION DEVELOPMENT. OR TO ACCOMMODATE GRADING PROJECT ENGINEER,
IN FIELD. z QUALIFIED GEOTECHNICAL I ^
2. THE MINIMUM TOP OF STEM WALL ELEVATIONS ARE BASED ON A 6" REVEAL, A F- ENGINEER OR CITY INSPECTIV,
EN
6" DROP IN THE FIRST TEN FEET, AND THEN 2% TO THE LOWEST TOP BACK OF CREATE POSITIVE SLOPE OF IZ
LOT DRAINAGE SWALE INFLTRATOIONSLENSESTAFF HARE
CURB FOR THE LOT OR 1% TO THE TOP OF BACKYARD SWALE (WHICHEVER IS 0.5% MIN TO SAND LENS. z
GRADING MODEL SHOWS ROUGH FULLY EXCAVATED FOR
GREATER). MIN TOP OF STEM WALL IS BASED ON III SECTION R401.3. SWALE GRADING CONTINUOUS TYPICAL SECTION OBSERVATION AND /
ACROSS LOTS. MODEL DOES NOT TO SCALE VERIFICATION OF
3. FOUNDATIONS MAY BE STEPPED A MAXIMUM OF 2 FEET. NOT PROVIDE POSITIVE FREE-DRAINING. MIN Q
DRAINAGE AS REQUIRED OR 24-HOURS NOTICE 0
4. REAR YARD SWALES SHOULD BE NO CLOSER THAN 10 FEET FROM THE BREAKS AT LOT LINES AS REQUIRED.
STRUCTURE. SHOWN IN PLAN VIEW AND PER M
5. THE BUILDING CONTRACTOR SHALL REVIEW & FOLLOW ALL RECOMMENDATIONS IN TYPE 'A' LOT GRADING DETAIL W
THIS SHEET.
THE GEOTECHNICAL ENGINEERING REPORT BY SITE CONSULTING, LLC, DATED
03/19/2019.
6. EACH BUILDER SHALL CONTINUE BACKYARD SWALE. V /
7. EXCEPTIONS TO THIS GRADING PLAN MAY BE APPROVED BY THE CITY OF v I J
MERIDIAN BUILDING OFFICIAL AT ISSUANCE OF BUILDING PERMIT BASED UPON WI I
REVIEW OF AN ENGINEERED INDIVIDUAL LOT GRADING PLAN. W
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8. QUANTITIES ARE APPROXIMATE RAW VOLUMES WITHOUT ADJUSTMENT FOR Q
COMPACTION:
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GRADING NOTES AND VOLUMES:
STRIP VOLUME 4" = t6,526 cy CUT r I�
ROAD EXCAVATION TO SUBGRADE v
CUT TO SUBGRADE= t2,479 cy
FILL TO SUBGRADE = ±686 cy W 0
NET = t1,793 cy CUT
NET EXCAVATE UTILITIES = t2,531 cy CUT J
CUT/FILL TO FINAL GRADE ON LOTS FROM Z
STRIPPED SURFACE
CUT TO FG = ±967 cy W
FILL TO FG = ±16,596 cy
NET = ±15,629 cy FILL r 1 L
NET IMPORT = t4,779 cy FILL Plans Are Accepted For Public V I
ALL CALCULATIONS ARE RAW VOLUMES BASED ON ROAD AND FINAL SURFACE Street Construction DATE:
MODELS DEPICTED ON THIS GRADING PLAN. THESE NUMBERS MAY VARY DUE TO 10-18-2023
ACTUAL SOIL COMPACTION AND SOIL SHRINKAGE. By stamping and signing the improvement plans, the Registered
Engineer ensures the District that the plans conform to all District PROJECT:
50 0 25 50 100 policies and standards. Variances or waivers must be specifical- C2023-002
SESSION y and previously approved by the District in writing. Acceptance -SHEET
of the improvement plans by the District does not relieve the
SCALE IN FEET Registered Engineer of these responsibilities.
1"=50' BY DATE:
ADA COUNTY HIGHWAY DISTRICT 3o4