FERC revises guidelines for evaluating hydropower projects

Oct. 29, 2002 — The Federal Energy Regulatory Commission (FERC) has finalized and issued a revised chapter of its Engineering Guidelines for the Evaluation of Hydropower Projects.

The engineering guidelines provide guidance on conducting engineering investigations and analysis at FERC-licensed projects.

Chapter III, “Gravity Dams,” has been updated to include several advances in the analysis of concrete gravity dams.

The significant changes include the following:

“- Changed safety factors when strength parameter uncertainty is reduced;
“- Additional guidance on uplift pressure;
“- Revised procedures for earthquake analysis;
“- Methods for dealing with hydrodynamic forces; and
“- Guidance on computer modeling.

The revised Chapter III, as well as the rest of FERC’s Engineering Guidelines, are on the Commission’s web site at http://www.ferc.gov/hydro/docs/engguide/guidelines.htm.

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