Transcription of ROCK RIPRAP DESIGN FOR PROTECTION OF STREAM …
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ROCK RIPRAP DESIGN FOR PROTECTION OF STREAM …
ROCK RIPRAP DESIGN FOR PROTECTION OF STREAM CHANNELS NEAR HIGHWAY STRUCTURESVOLUME 1 -- HYDRAULIC CHARACTERISTICS OF OPEN CHANNELS By GEOLOGICAL SURVEYW ater-Resources Investigations Report 86-4127 Prepared in cooperation with FEDERAL HIGHWAY ADMINISTRATIONo io00 Sacramento, California 1986 UNITED STATES DEPARTMENT OF THE INTERIOR DONALD PAUL HODEL, SecretaryGEOLOGICAL SURVEY Dallas L. Peck, DirectorFor additional information, write to:District Chief Geological Survey Federal Building, Room W-2234 2800 Cottage Way Sacramento, CA 95825 Copies of this report can be purchased from:Open-File Services Section Western Distribution Branch Geological Survey Box 25425, Federal Center Denver, CO 80225 Telephone: (303) 236-7476 CONTENTSPageAbstract ---------------------------------------- ------------------------ 1 Introduction ---------------------------------------- -------------------- 1 Geometric properties of open channels ----------------------------------- 3 Ratio of maximum to mean depth ------------------------------------- 7 Changes in channel shape ---------------------------------------- --- 10 Definition of a wide-open channel ---------------------------------- 16 Estimation of probable channel geometry ---------------------------- 17 Hydraulic propert
14. Superelevation of water surface at channel bends ----- 41 15. Depth of scour for selected sand, gravel, and cobble bed streams --- 50 16. Maximum permissible velocities recommended by Fortier and Scobey and the corresponding unit-tractive-force values converted by the U.S. Bureau of Reclamation ----- 54
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