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:
dam failure" muama failure caused by a flood from the drainage area upstream of the dam. 1.59-13 REFERENCES 1. Nunn, Snyder, and Associates, "Probable Max imum Flood and Hurricane Surge Estimates," un published report to NRC, June 13, 1975 (available in the public document room). 2. W.P. Creager, J.D. Justin, and J. Hinds, "Engineering for Dams," J. Wiley and Sons, Inc., New York, 1945. 3. U.S. Weather Bureau (now U.S. Weather Service, NOAA), "Seasonal Variation of the Probable Max imum Precipitation East of the 105th Meridian," Hydrometeorological Report No. 33, 1956.' 4. U.S. Department of Commerce, NOAA, "All Season Probable Maximum Precipitation-United States East of the 105th Meridian, for Areas from 1,000 to 20,000 Square Miles and Durations from 6 to 72 Hours," draft report, July 1972.2 'Note References 3 and 4 are being updated and combined into a single report by NOAA. This report is expected to be published in the near future as Hydrometeorological Report No. 51 with the ti tle "Probable Maximum Precipitation Estimates, United States East or the 105th Meridian." 1.59-14 K y FIGURE I.1 WATER RESOURCES REGIONS K '0 iS -ISOLINE REPRESENTING PEAK-FLOW OF f--4 , PUF iN 1,000CFS. I I NOTE: PMF ISO UNIS ON TIS CHART REPRESENT ENVELOPED V~LESOF PEAK RUNOFF FROM 10"SUARE MILE DRAINAGE AREA UNDER NATURAL RIVER CONDITIONS. ACCORDINGLY. PMIF VALUES OBTAINED DO NOT INCLUDE POSSIBLE CONTRISU TIONS TO PEAK FLOW THAT WOULD RESULT FROM UPSTREAM DAM FAILURES OR OTHER UNNATURAL EVENTS. 11G 1170 1159 113° 1110 100 1076 106 FIGURE 8.2 PROBABLE MAXIMUM FLOOD (ENVELOPING PMF ISOLINES) FOR 100 SQUARE MILES ( LA '0 0% r 83o f 1 79* 770 750 730 710 ms 670 O6r IS- 101dM REPRESENOIN PEAK FLOW OF S PMf IN 1.00 15 !m: P IJOUNIs OW TWS CHART REPRESENT ENVELOPED VALUES O PEAK RUIN FRM F 00SCOUAREMLE DRAINAGE0A AREA UNME NATURAL RIVER CONID"IMRS. ACCORDINGLY. j PU, VALUES OBTAINED 0o NOT INCLUDE POMSSBLE CONTRIMU. TrONS TO PEAK FLOW THAT WOULD RESULT FROM UPSTREAM DAM FAILURES OR OTHER