Document: NUREG-0800
Document ID: 5d71ab44-4cbd-4694-9e2c-eb9b02b902ef
Document Type: srp
Title: ICE EFFECTS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340546.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.4.7
CFR Part: 
CFR Title: 

Content:
made to assure that the design basis established in the CP review has been implemented properly. In addition, a review of icing records since the CP review will be made. If no CP review was undertaken (of the scope indicated), this fact will be noted in the OL findings. A sample CP statement follows: The staff concludes that with respect to ice flooding the plant design is acceptable and meets the requirements of General Design Crite- rion 2 and 10 CFR Part 100. This conclusion is based upon the follow- ing analysis which shows that safety-related structures identified in Regulatory Guide 1.29, are designed to withstand the effects of ice floods in accordance with position 1 of Regulatory Guide 1.59. This position is met in accordance with position 1.a of Regulatory Guide 1.102 which discusses dry sites. Ice flooding, which is common on the A River at the makeup intake structure, could only affect the river intake structure which would not result in any adverse effects to the plant's safety-related facil- ities. The applicant states that ice flooding may possibly raise the water surface near the A River intake to a maximum elevation of about 555 feet MSL. The applicant further states that ice and ice flooding on the A River tributaries outside the cooling lake will not affect the plant facilities. The major tributary nearest the plant is the B Creek with the closest point located about one mile to the southeast of the site. The applicant concludes that, because of the distance from the proposed site and the wide floodplain of the river, there will be no adverse effects at the plant site due to ice in the river and consequent flooding. We concur with this conclusion. The staff concludes that with respect to ice blockage of water intakes the plant design is acceptable and meets the requirements of 10 CFR Part 50, §50.55a and General Design Criterion 2. This conclusion is based upon the following analysis, which shows that position 2 of Regulatory Guide 1.27 is met