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STORM DRAINAGE NOTES: 8js v / A I I// / 2.85 / W U'
I. ALL STORM STRUCTURES SHALL MEET CURRENT NCDOT STANDARDS. �� A eo V A - - / goy � _ /
2. STORM STRUCTURES LABELED WITH °HD° REFERENCE THE TOP OF HOOD ELEVATION FOR THAT STRUCTURE. \ \ / \ - / / /
3 ALL STORM STRUCTURES LABELED "OTCB" SHALL BE OPEN THROAT CATCH BASINS (NCDOT 840.04). _I �� �� \ CS 40 - i - - - / / i A O
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4. ALL STORM STUCTURES LABELED 'GI" SHALL BE GRATE DROP INLETS (NCDOT 840.14 AND 840.17 IF PIPE IS I h / \ �/ - - / i r
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2. ALL STORM STUCTURES LABELED "HI" SHALL BE HOODED GRATE INLETS (NCDOT 840.02 AND 840.03). �� \ /A / / i i i /i _ - - / CP Q
3, ALL STORM STRUCTURES LABELED °SMH° SHALL BE STORM MANHOLES (NCDOT 840.52). r -�� \ �� / / i / /�� / ��� �I NC4 / - - _ _ - -
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5. ALL STORM STRUCTURES LABELED "CS" SHALL BE BMP OUTLET STRUCTURES (SEE WET POND DETAILS). /� =� / �� P Q� 7 /
6. PIPE JOINTS WITHIN R/W SHALL MEET NCDOT SPECIFICATIONS SECTION 300. W \ �eo / // / - 6 �� / STC C7 /
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7. PIPE JOINTS OUTSIDE R/W SHALL BE TBG AND MEET ASTM C990. FES 4I V �, A / / / / / �/ / / // 5
8. HOODED INLETS WITH PIPES ENTERING LESS THAN PERPENDICULAR SHALL BE PRECAST NCDOT 840.45. �� \ eis / / /� �! / / \ / / �� _ _ - /
9 BOXES WITH PIPES ENTERING AND/OR EXITING GREATER THAN 36" SHALL BE PRECAST NCDOT 840.05. I \ \ \ -
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10. ALL PIPE AND BEDDING MATERIAL SHALL MEET ACPA AND ASTM C1470 STANDARDS. / \ V A \ ��V \ - / / /
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11 THE PRECAST MANUFACTURER IS TO PREPARE AND SUBMIT TO THE ENGINEER DESIGN DETAILS AND / \ \ /A ��® / /
CALCULATIONS FOR THE WET POND CONTROL STRUCTURES SHOWN BASED ON THE DESIGN CRITERIA I / V A V VA � _ �/ / % / �// 7- —__ - R� DRAWN: NSS
SPECIFIED THE DESIGN SHALL BE PERFORMED UNDER THE DIRECT SUPERVISION AND SEALED BY A �� I �\ /\ \\ \ \\ V/ e10_ / �_z i / 7VA CP Cp p T� p DESIGNED: NSS
PROFESSIONAL ENGINEER REGISTERED IN THE STATE OF NORTH CAROLINA EXPERIENCED IN THE DESIGN OF / � / \ /\ _ A// / / / / �� ��� / GRAPHIC SCALE REVIEWED: JKS
PRECAST CONCRETE. THE DESIGN SHALL INCLUDE PROVISIONS FOR HANDLING STRESSES AND V A / / �// i� i / V APPROVED: JKS
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CONSTRUCTION LOADS. REPRODUCED COPIES OF ASTM C789 "STANDARD SPECIFICATIONS FOR PRECAST I � � � — / / � — — � / � / i�� � � SCALE: I" = 60'
REINFORCED CONCRETE BOX SECTIONS FOR CULVERTS, STORM DRAINS, AND SEWERS" WILL NOT BE ssMH
ACCEPTED AS SUBSTITUTE FOR DESIGN. / \ a // // RIM: 806.31 i /�� / / / - FLOOD ZONE "A UNSHADED"
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