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Title: Evaluating safety of concrete gravity dam on weak rock: Scott Dam

Abstract

Scott Dam is owned and operated by Pacific Gas and Electric Co. (PG and E) as part of the Potter Valley Project. Although it is an unimpressive concrete gravity dam [233 m (765 ft) long with maximum water surface 33.4 m (110 ft) above tail water], the dam has unusually complex and weak foundation rocks; thick condition caused design changes during construction, numerous subsequent special investigations, and several corrections and additions. A main stumbling block to clarification of the dam safety issue for Scott Dam has always been difficulty in characterizing the foundation material. This paper discusses an approach to this problem as well s how the safety of the dam was subsequently confirmed. Following a comprehensive program of research, investigations, and analysis from 1991 to 1997.

Authors:
;
Publication Date:
Research Org.:
Pacific Gas and Electric Co., San Francisco, CA (US)
OSTI Identifier:
20062620
Resource Type:
Journal Article
Journal Name:
Journal of Geotechnical and Geoenvironmental Engineering
Additional Journal Information:
Journal Volume: 126; Journal Issue: 5; Other Information: PBD: May 2000; Journal ID: ISSN 1090-0241
Country of Publication:
United States
Language:
English
Subject:
13 HYDRO ENERGY; CALIFORNIA; DAMS; SAFETY ANALYSIS; ROCK MECHANICS; HYDROELECTRIC POWER PLANTS; FOUNDATIONS

Citation Formats

Goodman, R.E., and Ahlgren, C.S. Evaluating safety of concrete gravity dam on weak rock: Scott Dam. United States: N. p., 2000. Web. doi:10.1061/(ASCE)1090-0241(2000)126:5(429).
Goodman, R.E., & Ahlgren, C.S. Evaluating safety of concrete gravity dam on weak rock: Scott Dam. United States. doi:10.1061/(ASCE)1090-0241(2000)126:5(429).
Goodman, R.E., and Ahlgren, C.S. Mon . "Evaluating safety of concrete gravity dam on weak rock: Scott Dam". United States. doi:10.1061/(ASCE)1090-0241(2000)126:5(429).
@article{osti_20062620,
title = {Evaluating safety of concrete gravity dam on weak rock: Scott Dam},
author = {Goodman, R.E. and Ahlgren, C.S.},
abstractNote = {Scott Dam is owned and operated by Pacific Gas and Electric Co. (PG and E) as part of the Potter Valley Project. Although it is an unimpressive concrete gravity dam [233 m (765 ft) long with maximum water surface 33.4 m (110 ft) above tail water], the dam has unusually complex and weak foundation rocks; thick condition caused design changes during construction, numerous subsequent special investigations, and several corrections and additions. A main stumbling block to clarification of the dam safety issue for Scott Dam has always been difficulty in characterizing the foundation material. This paper discusses an approach to this problem as well s how the safety of the dam was subsequently confirmed. Following a comprehensive program of research, investigations, and analysis from 1991 to 1997.},
doi = {10.1061/(ASCE)1090-0241(2000)126:5(429)},
journal = {Journal of Geotechnical and Geoenvironmental Engineering},
issn = {1090-0241},
number = 5,
volume = 126,
place = {United States},
year = {2000},
month = {5}
}