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GRADING PLAN LEGEND
801
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800.00
PROPOSED GRADE
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PROPOSED 1' CONTOUR
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MATCH EXISTING GRADE
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PROPOSED 5' CONTOUR
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TC 800.50
PROPOSED TOP OF CURB
SWALE 0 1.0%
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EP 800.00
PROPOSED EDGE OF PAVEMENT
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PROPOSED SWALE
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TW 800.5
PROPOSED TOP OF WALL
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PROPOSED SWALE WITH
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[BW 800.00
PROPOSED BOTTOM OF WALL
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SUB- SURFACE DRAIN
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FFE= 800.00
FINISHED FLOOR ELEVATION
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GRADE BREAK LINE
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RE= 800.00
RIM ELEVATION
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CONSTRUCTION LIMITS LINE
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GRADING PLAN NOTES
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1. EXISTING UTILITY LOCATIONS ARE APPROXIMATE. THE CONTRACTOR SHALL DETERMINE AND FIELD VERIFY
ALL HORIZONTAL AND VERTICAL LOCATIONS PRIOR TO COMMENCEMENT OF CONSTRUCTION.
2. TOPOGRAPHIC AND PLANIMETRIC INFORMATION FROM PHOTOGRAPHIC COMPILATION HAS BEEN PROVIDED BY
OTHERS. THE ACCURACY HAS NOT BEEN CONFIRMED BY CRIPE ARCHITECTS + ENGINEERS. ANY
DISCREPANCIES SHALL BE REPORTED TO THE ENGINEER OF RECORD.
3. ALL GRADES AT BOUNDARY SHALL MEET EXISTING GRADES.
4. RIM ELEVATION (RE) SHALL INDICATE THE ELEVATION THAT WATER WOULD ENTER THE GRATE FOR ALL
CASTINGS. IF CASTING HAS SOLID LID, THE RE IS THE LID ELEVATION.
5. BUILDING PAD AREAS AND PAVED AREAS DESIGNATED FOR FILL SHALL BE CONSTRUCTED OF SUITABLE
FILL MATERIAL AND COMPACTED PER SPECIFICATIONS. ALL FILL AREAS SHALL BE STRIPPED OF TOPSOIL
PRIOR TO PLACEMENT OF FILL.
6. ANY EXCESS SOIL MATERIAL SHALL BE EXPORTED FROM THE SITE AFTER CONSTRUCTION IS COMPLETED.
7. TOPSOIL SHALL BE PLACED IN MOUNDING AREAS AND NONSTRUCTURAL FILL AREAS. UPON COMPLETION
OF MASS EARTHWORK, TOPSOIL SHALL BE SPREAD TO A DEPTH OF FOUR TO SIX (4 TO 6) INCHES IN
AREAS TO BE SEEDED SUCH AS STAGING AREA, GRASS AREAS, AND DISTURBED AREAS OUTSIDE OF
BUILDING AND PARKING AREAS.
8. CONTRACTOR SHALL PRESERVE EXISTING TREES WHEREVER POSSIBLE. CLEARING LIMITS SHALL CONSIST
OF ALL TREES WITHIN PAVED AREAS, UTILITY INSTALLATION LIMITS, AND CUT /FILL AREAS.
9. A GEOTECHNICAL REPORT HAS NOT BEEN PROVIDED FOR THIS PROJECT. CONTRACTOR TO PERFORM A
SITE VISIT PRIOR TO PROJECT BID. THE ENGINEER HAS BASED RECOMMENDATIONS UPON NRCS MAPS
AND GENERAL KNOWLEDGE OF SOILS CONDITIONS IN THE AREA,
10. 100 -YEAR FLOODPLAINS, FLOODWAY FRINGES AND FLOODWAYS DO NOT EXIST ON SITE A
11. ANY DISCREPANCIES OR CONFLICTS WHICH BECOME APPARENT BEFORE OR DURING CONSTRUCTION SHALL
BE BROUGHT TO THE ATTENTION OF THE ENGINEER OF RECORD IMMEDIATELY SO THAT CLARIFICATION OR
REDESIGN MAY OCCUR.
DRAINAGE SUMMARY
THE SITE IS MASTER PLANNED FOR A WATERSHED OF 24.6 ACRES ON -SITE AND 124.92 ACRES OFFSITE
FROM THE NORTHWEST VIA A CULVERT UNDER HAZEL DELL ROAD AND A SWALE ALONG THE NORTH EDGE OF
THE PROPERTY. THE STORMWATER DRAINS TO THE EAST AND NORTHEAST THROUGH A DRY DETENTION BASIN
AND OUTLETS THROUGH AN 18" PIPE TO AN EXISTING INLET STRUCTURE IN AN EASEMENT ON THE WESTERN
BOUNDARY LINE OF THE ASHMORE TRACE SUBDIVISION. THE PROPOSED IMPROVEMENTS FOR THIS VESTIBULE
AND PARKING ADDITION ARE WITHIN THE CONSTRAINTS OF THE APPROVED MASTER PLAN.
SITE ACREAGE : 24.6 ACRES
OFFSITE ACREAGE : 124.92 ACRES
ALLOWABLE RELEASE RATE (100YR) : 193.03 CFS
ACTUAL RELEASE RATE (100YR) : 185.13 CFS
VOLUME OF DETENTION REQUIRED : 4.39 ACRE -FT WITHOUT OFFSITE
7.77 ACRE -FT WITH OFFSITE
VOLUME OF DETENTION PROVIDED : 9.13 ACRE -FT TO ELEVATION 774.22
NOTE : PROPOSED STORM SEWER SYSTEM IS A PRIVATE STORM SEWER SYSTEM Q
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0 25 50 100
12.5 37.5 75
SCALE: 1"=50'
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Drawing Number:
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