ML19256D244
| ML19256D244 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 02/23/1971 |
| From: | Nunn D US ATOMIC ENERGY COMMISSION (AEC) |
| To: | Howe P US ATOMIC ENERGY COMMISSION (AEC) |
| References | |
| NUDOCS 7910170753 | |
| Download: ML19256D244 (1) | |
Text
FEB 2 31977 7C - d, - ]
a P. W. Howe, Chief. Site, Environmental & Radiation Safety Group, DRL FID0D PBCTICTION ICE THEIE MILE ISLAND NUCLEAR POWER FLANT A meeting was held with representatives of Metropolitan Edison Company and their consultants (Gilbert & Associates, Inc.) on February 23, 1971 to discuss flood protection for the Three Mile Island Plant. A separate meeting was held with R. E. McLemore of Gilbert and Assoc.,
to discuss details, the results of which are discussed below and were also presented to the general meeting.
Normal operating procedures should include a requirmeent for periodic inspection and repair (if required) of the river bank and levee system after every flood or ice jam, with a minism inspection interval of six months, h analysis of flooding should include a plan view of the plant including the levee system which indicates levee elevations and water surface elevations for the leves design flood. The plan view should also illustrate the site imprevements for Units 1 and 2.
Flow velocities along the entire levee system, the design criteria for the ripray protection, and pertinent references should be included in the report for the levee up to the design flood.
Backweter computations for the laves design and probable navi== flood in the viainity of the service bridge should also be included in the report.
The descriptive meterial should include detailed plan and elevation views of the bridge. h general plans for flood protection appear acceptable with one exception. N ability of the steep ziprapped levee slopes to withstand high velocity river flow for sus-tained periods of time is questioned.
h applicant's consultant however, has informally agreed to supply the meterial necessary to make an independent hydrologic engineering analysis.
B. E. Eunn, Rydraulic Engr.
Site, Environmental & Radiation Safety Group Divisioc of Reactor Licensing I
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