HomeMy WebLinkAboutSW6191002_CG101_12/17/20191 1 2
GRADING & STORM DRAINAGE NOTES:
1.
CONTRACTOR SHALL GRADE THE SITE AS SHOWN AND
REPORT ANY ISSUES TO THE CONTRACTING OFFICER.
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2.
CONTRACTOR SHALL GRADE ALL AREAS TO TRANSITION
APPROPRIATELY AND TIE IN TO THE EXISTING GRADE.
3.
ALL EXCAVATION SHALL BE PERFORMED SO THAT THE SITE
AND THE AREA IMMEDIATELY SURROUNDING THE SITE
WHICH AFFECT OPERATIONS SHALL BE CONTINUALLY AND
EFFECTIVELY DRAINED DURING ALL PHASES OF
CONSTRUCTION.
4.
ALL STORM DRAINAGE PIPES SHALL HAVE THEIR JOINTS
WRAPPED WITH FILTER FABRIC. FILTER FABRIC SHALL
EXTEND 1 FOOT PAST THE JOINT. FILTER FABRIC SHALL
HAVE AN OVERLAP OF 18 INCHES.
5.
ALL EXISTING MANHOLES WITHIN THE LIMITS OF
CONSTRUCTION SHALL BE RAISED OR LOWERED TO MATCH
THE NEW FINISHED GRADES.
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6.
TRENCH BOXES SHALL BE USED TO INSTALL STORM
DRAINAGE LINES AROUND EXISTING TREES TO REMAIN. NO
FILL FROM THE EXCAVATIONS SHALL BE STOCKPILED WITHIN
THE DRIP LINE OF THE TREES TO REMAIN.
7.
EXISTING STORM DRAINAGE PIPE TO BE KEPT SEPARATE
FROM NEW STORM DRAINAGE NETWORK.
8.
THE SITE SHALL BE GRADED TO PROVIDE POSITIVE
DRAINAGE AWAY FROM ALL NEW BUILDINGS AND SITE
STRUCTURES.
9.
ROOF/FOUNDATION DRAIN COLLECTORS SHALL BE SIZED AS
SHOWN ON CG PLANS. ALL ROOF/FOUNDATION DRAINS AND
COLLECTORS SHALL HAVE A MINIMUM 1.00% SLOPE. ROOF
DRAINS SHALL HAVE A MINIMUM 1.0 FT OF COVER AND
FOUNDATION DRAINS SHALL HAVE A MINIMUM OF 2.42 FT OF
COVER.
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10.
CLEANOUTS SHALL BE PROVIDED ON ALL ROOF DRAINS
WHERE THE PIPE MAKES A TURN OF 45 DEGREES OR
SHARPER.
IN
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n
LEGEND
CB
CATCH BASIN
COO
SANITARY CLEAN -OUT
DI
DROP INLET
FFE
FINISHED FLOOR ELEVATION
✓e
JUNCTION BOX
280
PROPOSED CONTOUR
-------281 ------
EXISTING CONTOUR
280.00
PROPOSED SPOT ELEVATION
PVMT. MATCH LINE
EXISTING DRAINAGE PIPING
®
EXISTING DROP INLET
PROPOSED DRAINAGE PIPING
®
PROPOSED DROP INLET
- -
LIMITS OF CONSTRUCTION
°
a
PROPOSED CONCRETE
/
EXISTING BUILDING
PROPOSED BUILDING
TREE NOTE
BASED ON DISCUSSION WITH USACE ON 5/6/19, THE OWNER
WILL PROVIDE INSTRUCTIONS FOR THE GC TO SUPPLY AND
PLANT 70 TREES OFFSITE WITHIN A 20 MILE RADIUS OF THE
PROJECT LOCATION IN ACCORDANCE WITH THE DD1391, 50
DECIDUOUS TREES AND 20 CONIFERS; SITE TO BE
DETERMINED BY CONTRACTING OFFICER.
ADDITIONAL NOTES
SURVEY STANDARDS USED: NAD83 NORTH AROLINA STATE
PLANE US FOOT; NAVD 88 VERTICAL GEOID12B LAST DAY
OF SURVEY, 1-11-2019.
3 1 4
MATCHLINE
SEE THIS SHEET
SITE GRADING PARTIAL PLAN
SCALE: 1" = 30'
UNCLASSIFIEDHFOR OFFICIAL USE ONLY 7 8
5 1 6
MATCHLINE
SEE PARTIAL PLAN THIS SHEET
BUILDING 3352
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234.70
s 231.65 237.00
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231 75 1/ 35.65
235 50 237.65
9 1 10
MATCHLINE
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229.5 ONC. PAD FOR \ `�� \ \ 233.45 / \ \\ EXISTING I BUILDING
-13EN TOR \ \ 236.05 / 237.75 \ °�o W 3046
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FFE:231.5'-- °,. ° 236 o °I° \ \ 5 \ / a
FLUME 1 2.61 /o' w �2.88 /o r', �r' P \ 1
I I o `BLRET TION A5-HW \ \ 232.55
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UNCLASSIFIEDHFOR OFFICIAL USE ONLY
30 0 30 60 90
GRAPHIC SCALE: 1 INCH = 30 FEET
READY TO ADVERTISE