Download or read book Modification of Fish Ladders at John Day Dam Columbia River Oregon and Washington written by United States. Army. Corps of Engineers. North Pacific Division and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Modification of Fish Ladders at John Day Dam Columbia River Oregon and Washington Hydraulic Model Investigation written by P. M. Smith and published by . This book was released on 1984 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prototype operation of the originally constructed fish ladders at John Day Dam revealed the need for ladder modifications to improve fish passage. A 1:10-scale model was used to evaluate the design modifications for both the north-and south-shore ladders. Improvements were desired in the flow-regulating sections and at the fish counting station for both fish ladders. The model was instrumental in developing a successful modification to the Hell's Gate slot-orifice type regulating section. The modification consisted of a slot-only design having a maximum head drop of approximately 6 inches. A vertical counting station was developed for the north-shore ladder. Successful operation in the prototype has verified the effectiveness of the design.

Download or read book Fish Ladders for John Day Dam Columbia River Oregon and Washington written by Richard L. Johnson and published by . This book was released on 1968 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fish Ladders for John Day Dam Columbia River Oregon and Washington Hydraulic Model Investigations written by and published by . This book was released on 1968 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Facilities for passing fish upstream over John Day Dam include a powerhouse collection system with fishway entrances at each end and along the downstream face of the powerhouse, and a 24-ft-wide fish ladder with 1-on-10 slope on both sides of the river. The north fish ladder (except entrance section) and a portion of ladder adjacent to the south fish counting station were studied in a 1:10-scale model. A group of four typical diffusion chambers in each ladder was reproduced in a 1:8-scale model. Fishway weirs with 6-ft-long overflow crests at each end of a 12-ft-long nonoverflow section, upstream fins, and 18- by 18-in. orifices at the floor were adopted. Orifice sizes in the regulating sections were adjusted to control discharge and head drops between 19 nonoverflow bulkheads for an 11-ft range in forebay levels. Sloping floors, baffle beams at a constant elevation, and metering orifices sized to provide 60 cfs each were selected for diffusers in sloping portions of the fish ladders. (Modified author abstract).

Download or read book John Day Lock and Dam Columbia River Oregon and Washington written by United States. Army. Corps of Engineers. Walla Walla District and published by . This book was released on 1970 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Modification of Fish Ladders Bonneville Dam Columbia River Oregon and Washington written by Louis Z. Perkins and published by . This book was released on 1973 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book JOHN DAY LOCK AND DAM LAKE UMATILLA COLUMBIA RIVER OREGON AND WASHINGTON DESIGN MEMORANDUM NO 22 SUPPLEMENT NO 1 MODIFICATIONS TO FISH LADDER FLOW CONTROL AND EXIT SECTIONS written by United States. Army. Corps of Engineers. Portland District and published by . This book was released on 1970 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fish Ladders for John Day Dam Columbia River Oregon and Washngton written by Richard L. Johnson and published by . This book was released on 1968 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NBS Special Publication written by and published by . This book was released on 1973 with total page 1562 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Dalles Lock and Dam Columbia River Washington and Oregon written by United States. Army. Corps of Engineers. Portland District and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Public Works Appropriatins for 1970 for Water and Power Resources Development and the Atomic Energy Commission written by United States. Congress. House. Committee on Appropriations and published by . This book was released on 1969 with total page 1930 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Public Works Appropriations for 1970 for Water and Power Resources Development written by United States. Congress. House Appropriations and published by . This book was released on 1969 with total page 1980 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Dalles to Vancouver Modifications for Peaking Columbia River OR WA written by and published by . This book was released on 1972 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of the John Day Dam South Fish Ladder Modification 2003 written by Mike R. Jonas and published by . This book was released on 2004 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1990 with total page 946 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements written by and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hearings written by United States. Congress. Senate. Committee on Appropriations and published by . This book was released on 1969 with total page 1070 pages. Available in PDF, EPUB and Kindle. Book excerpt: