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HODIFICATIONS of fish LADDERS AT J0HN DAT DAM. COLUMBIA RIVER. OREGON AND WASHINGTON
Hydraulic Modal Inveatigatian
| 题名： | HODIFICATIONS of fish LADDERS AT J0HN DAT DAM. COLUMBIA RIVER. OREGON AND WASHINGTON Hydraulic Modal Inveatigatian |
| 关键词： | Hydraulic models John Day Dam Columbia River Fish ladders |
| 摘要： | Prototype operation of the originally constructed fish ladders at John Day Dn ravaalad the need Cor ladder aodlflcations to laprove fish passage. A 1:10- gcaXe aodel was used to evaluate d»e desi^i aodlflcations for both the north*- md soutii-shore leddera. laproveaents were duslred In the flow-regulating sections and at the fish counting station for both fish ladders. The aodel was Instrusantal In developing a successful aodlflcatlon to the Hell's Gate slotorifice type regulating section. The aodlflcatlon consisted of a slot-only |
| 报告类型： | 科技报告 |
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