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Unformatted text preview: esting discussion of the history and “dimensionality” of Manning’s formula is given in Ref. 3, pp. 98 – 99. | v v 666 | e-Text Main Menu | Textbook Table of Contents | Study Guide 10.2 Uniform Flow; the Chézy Formula 667 Table 10.1 Experimental Values of Manning’s n Factor* Average roughness height n Artificial lined channels: Glass Brass Steel, smooth Painted Riveted Cast iron Cement, finished Unfinished Planed wood Clay tile Brickwork Asphalt Corrugated metal Rubble masonry Excavated earth channels: Clean Gravelly Weedy Stony, cobbles Natural channels: Clean and straight Sluggish, deep pools Major rivers Floodplains: Pasture, farmland Light brush Heavy brush Trees ft mm 0.010 0.011 0.012 0.014 0.015 0.013 0.012 0.014 0.012 0.014 0.015 0.016 0.022 0.025 0.002 0.002 0.002 0.003 0.002 0.003 0.002 0.002 0.002 0.003 0.002 0.003 0.005 0.005 0.0011 0.0019 0.0032 0.0080 0.012 0.0051 0.0032 0.0080 0.0032 0.0080 0.012 0.018 0.12 0.26 0.3 0.6 1.0 2.4 3.7 1.6 1.0 2.4 1.0 2.4 3.7 5.4 37...
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This note was uploaded on 10/27/2009 for the course MAE 101a taught by Professor Sakar during the Spring '08 term at UCSD.

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