Document: NUREG-0800
Document ID: a35b0293-07ff-4bdb-9950-454f3a0e970e
Document Type: srp
Title: ICE EFFECTS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070249.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.4.7
CFR Part: 
CFR Title: 

Content:
criteria for this SRP section are based on meeting the requirements of the following regulations: 1. 10 CFR Part 50, 50.55a Appendix A, General Design Criterion 1 (GDC 1) as it requires 10 structures, systems, and components to be designed and constructed to quality standards commensurate with the importance of the safety function to be performed. 2. General Design Criterion 2 (GDC 2) as it requires structures, systems, and components important to safety to be designed to withstand the effects of natural phenomena. 3. 10 CFR Part 100 as it relates to identifying and evaluating hydrologic features of the site. Appropriate sections of the following documents are used by the staff to assure ensure that the Commission regulations identified above are met: Regulatory Guide 1.59 provides guidance for developing the hydrometeorologic design 11 basis; Regulatory Guide 1.29 identifies the safety-related structures, systems, and components; Regulatory Guide 1.102 describes acceptable flood protection to prevent the safety-related facilities from being adversely affected; and Regulatory Guide 1.27 describes the ultimate heat sink capabilities which apply. To meet the requirements of 10 CFR Part 50, 50.55aGDC 1, GDC 2, and 10 CFR Part 100 as 12 they relate to ice effects the following specific criteria are used: A. Publications of the National Oceanic and Atmospheric Administration (NOAA), the United States Geologic Survey (USGS), the Corps of Engineers, and other Based on the difference between normal water levels and the flood event or low water. 1 2.4.7-3 DRAFT Rev. 3 - April 1996 sources are used to identify the history and potential for ice formation in the region. Historical maximum depths of icing should be noted, as well as mass and velocity of any large floating ice bodies. The phrase "historical low water ice affected" or similar phrases in stream flow records (USGS and State publications) will alert the reviewer to the potential for ice effects. The following items