Document: NRC Regulatory Guide
Document ID: c7b1689b-ff17-4083-9fb1-f91b6965ea1a
Document Type: regulatory_guide
Title: Design Basis Floods for Nuclear Power Plants + HISTORY - HISTORY 02/2022 – DG-1290 , Proposed Revision 3 09/2014 – Periodic Review of Revision 2 – Revise 07/1980 – Errata to Revision 2 07/2024 – DG-1290 Revision 1 (Rev. 2)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML0037/ML003740388.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.59
CFR Part: 
CFR Title: 

Content:
LOW MODERATF HIGH S(ST) NO' NO? MAL PRESSURE INDEX P 0INCHES 26.81 26.81 26.81 PERIPHE•AL PRESSURE 'n INCHES 31.13 31.13 31.13 RADIU8 TO MAXIMUM WIND R09 RADIUJS NAUT. MI. 40 40 40 &RANSIATION SPEED ?v (FAD SPEED) KNOTS 1 4 13 4AXDOJM WIND SPEED Vx M.P.H. 134 139 148 [NITIAL DISTANIE-NAUT.MI.1 'PROM 20 MPH WIND 400 364 311 kT SHORE TO MAX. WIND II DEGREE$ LENGTH 57.6 NAUTICAL MILES PMH OCHPUTATIONAL CO ZICIENT AND WATER LEVEL (SURGcE) ESTIMATES OCEAN BED P"OFIL TRAVERSE WATER DISTANCE DEPTH FROM BELDW SHORE HIM (NAUT.HI.) (FEET) 0 0 0 0.2 10.5 _ 0.5 12.0. _ 1.0 14.0 _ 1.5 16.5 _ 2.0 18.0. _ 3.0 29.5 , 5.0 39.0 - 10.0 460. _ 15.0 56.o - 20.0 65.o L30.0 85.0. _ 40.0 138.o0 _ 50.0 227.0o - 57.6 6o0.0 _ 60.0 1,800.0 LATIT UME 320 25' DEGREE AT TRAVERSE MID-POINT FROM SHORE ro600-= DE BOT1I0M FRICTION FACTOR 0.0025 WIND STRESS COM=ION FACTOR 1.10 WATEEB LE~VEL DATA (AT OPEN OGAST SHOELINE) PMHl SPEED OF TRANISLATION COMPONENTS ST I M __....____ F.E j T WIND SETUP 17.15 PRESSURE SETUlP 3-*23 INITIAL WATER LEV. 1.00 ST1'ONOOICAL 6.80 rFiD LEVEL TOT1AL-SURGE STILL WATER LW. 28.18 Pwr MLW _C ( 0, K. TABLE C.14 SUMMARy-PETINENT pROBABLE MAXIMUM. hVRRICAMM (PMH), MWTOM SJRGE COMPUTATIONAL DATA AND RESULTANT WATER LEVEL LOCATION RALEIGH BAY,IAT. 340 54' LONG. 76 15.3': TRAVIMSE-AZIMIUTH 135 WOWPH OAROLINA Note: Maximum wind speed is assumed to be on the traverse that is to right of storm track a distance equal to the radius to maximum wind. !/lnitial distance is distance along traverse from shoreline to maximum wind when. leading 20 mph isovel intersects shoreline. Storm diameter between 20 mph isovels is approxi mately double the initial distance. PROBABLE MAXIMUM HURRICANE INDEX CHARACTMISTICS IZONE 3 AT LOCATION 34°0 54' DEREE VNOTH DEREE, LENGTH 35.2 NAUTICAL MILES K '0 'C NORTH CAROLINA 0E OFTAN-5 ION PARAMETER DESIGNATIONS !SLW OMODERATF HIGH IfNtR PRESSURE INDEX P, INCHES 26.89 26.89 26.89 LERIPHEAL PRESSURE Pn INCHES 31.00 31.00 31.00 RtADI1US TO MAXIMUM WIND LARGE