First Powerhouse, Bonneville Dam, Columbia River, Orego, Fish Guidance Efficiency System
Abstract
Bonneville dam is located on the Columbia River at river mile 146.1, approximately 40 miles east of Portland, OR (Figure 1). It is a multipurpose project that consists of the first and second powerhouses. The old and new navigation locks and a 1,600,000-cfs capacity spillway. Construction of the first powerhouse, the old navigation lock, and spillway began in 1933. President Franklin D. Roosevelt dedicated the lock and dam on September 28, 1937. The construction of the first powerhouse was completed in 1943. The first powerhouse has a flow capacity of approximately 128,000 cfs and a rated power output of 526,700 kw. Construction of the second powerhouse began in 1974 and was completed in 1931. The second powerhouse has a flow capacity of approximately 160,000 cfs and a rated power output of 553,200 kw. The main purpose of this study is to identify modifications to the Bonneville First Powerhouse Fish Guidance System that will improve survival of juvenile salmon passing Bonneville Dam.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 2001
- Accession Number
- ADA397428
Entities
People
- Robert Davidson
Organizations
- Engineer Research and Development Center