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GRADING NOTES
INDEX CONTOUR LINE
INTERMEDIATE CONTOUR LINE
SWALE WITH UNDERDRAIN
(SEE DETAIL)
SPOT ELEVATION
MATCH EXISTING GRADE
STORM CURB INLET
STORM INLET
STORM STRUCTURE NUMBER
STORM SEWER
EMERGENCY 100 -YR OVERFLOW PATH
DRAINAGE ARROW
WATER LINE
FIRE HYDRANT
WATER VALVE
UNDERGROUND ELECTRIC
ELECTRIC MANHOLE
TRANSFORMER
UNDERGROUND TELEPHONE
TELEPHONE MANHOLE
TRAFFIC SIGNAL
LIGHT POLE
1. PROVIDE POSITIVE DRAINAGE IN ALL AREAS. PAVING CONTRACTOR
SHALL TEST FOR ANY PONDING CONDITIONS AFTER INSTALLATION AND
CORRECT.
2. PROVIDE SMOOTH TRANSITION FROM NEW AREAS TO EXISTING FEATURES
AS NECESSARY.
3. ALL AREAS WHERE PROPOSED ASPHALT PAVEMENT MEETS THE EXISTING
PAVEMENT THE EXISTING PAVEMENT EDGE SHALL BE PROPERLY SEALED
WITH A TACK COAT MATERIAL
4. THE EXCAVATING CONTRACTOR MUST TAKE PARTICULAR CARE WHILE
EXCAVATING AROUND EXISTING TREES SO NOT TO DISTURB AND TO
MINIMIZE OR ELIMINATE DAMAGE TO ROOT SYSTEM.
5. THE EXCAVATING CONTRACTOR MUST TAKE PARTICULAR CARE WHEN
EXCAVATING IN AND AROUND EXISTING UTILITY LINES AND EQUIPMENT.
VERIFY COVER REQUIREMENTS BY UTILITY CONTRACTORS AND/OR UTILITY
COMPANIES SO NOT TO CAUSE DAMAGE.
6. THE EXCAVATING CONTRACTOR OR LANDSCAPING CONTRACTOR SHALL
INSTALL THE FINISH GRADE AT 1/2- BELOW PAVEMENTS WHEN SHEET
DRAINAGE IS PROPOSED ACROSS THAT SEEDED AREA.
7. ALL AREAS WHERE THE EXISTING PAVEMENT OR PAVEMENTS ARE
DAMAGED DURING CONSTRUCTION FROM TRAFFIC BY THE GENERAL
CONTRACTOR, SUBCONTRACTORS OR SUPPLIERS, SHALL BE RESURFACED
OR RECONSTRUCTED AT LEAST TO THEIR ORIGINAL CONDITION AFTER
THE CONSTRUCTION WORK IS COMPLETED.
8. T.C. SHALL INDICATE THE ELEVATION THAT WATER WOULD ENTER A
STRUCTURE WHEN STRUCTURE IS NOT A CURB INLET. T.C. SHALL
INDICATE TOP OF CURB WHEN STRUCTURE IS A CURB INLET.
9. STORMWATER FACILITIES WILL BE PRIVATELY OWNED AND MAINTAINED.
10. MINIMUM FLOOD PROTECTION GRADE IS 838.00.
11. LOWEST ADJACENT GRADE IS 839.50.
NO EARTH DISTURBING ACTIVITY MAY COMMENCE
WITHOUT AN APPROVED STORM WATER MANAGEMENT
PERMIT.
PER FIRM MAP NUMBER 18057CO216F, NO
FLOODPLAIN OR FLOODWAY FRINGES EXIST ON THIS
SITE.
DRAINAGE SUMMARY
OVERALL SITE ACREAGE
25.19 ACRES
OFFSITE/UPSTREAM
ACREAGE
2.37 ACRES
ALLOWABLE RELEASE RATE
(FROM MASTER PLAN)
10 YEAR = 6.40 CFS*
100 YEAR = 9.08 CFS*
PROPOSED RELEASE RATE
10 YEAR = 6.36 CFS
100 YEAR = 9.01 CFS
CN COMPARISION
(FOR BASIN 1136)
PROPOSED = 90
MASTERPLAN = 92
DETENTION VOLUME
REQUIRED = 145,840 CF
PROVIDED = 146,972 CF
*AS DEFINED
BY MASTER DRAINAGE PLAN (APPROVED MAY 20061
DON'T
DIG
BLIND
"HOLEY HOLEY"
1-800-382-5544
CALL TOLL FREE
5 Xq;1tY411EA6 E If Wit fi•,°
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MION 1 OGOBMTIA .1 INFNA6MULMRS
7635 Interactive Way
Suite 100
Indianapolis, IN 46278
317.299.7500
FAX: 317.291.5805
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