CONTENTS. 



ma* 



Abutment nd Protection of Bank 

 Maaoary Dam* ...... .. 



Cot ot Fixed DWM. 



*7 



CHAPTER V. 



MOVABLE DAMS. 





210 

 211 



208 



and Kinds 20 9 



Height of Lift 2I 



General Design 



Elevation of Sills. 



Length of Pass and Weir 2I 3 



Foundations ' ' 5 



Drift-chute and Regulating Weir 215 



Abutment and Protection of Banks 216 



Remarks. 2l6 



CHAPTER VI. 



NEEDLE DAMS. 



History 3t ~ 



Maneuvers of Trestles 21 7 



Placing and Removing Noodles *'8 



Dam at Louisa. Ky 2I 9 



ilc Dams in Europe "' 



Calculations of Trestles 2 " 



Calculations of Needles "3 



General Remarks on Needle Dams 224 



Dimensions of Trestles 22 S 



Dimensions of Needles "5 



Cost of Needle Dams 6 



CHAPTER VII. 



\ 



c IIANOISK WICKET DAMS. 



History "1 



Description "7 



Section of Pass. Port a 1'Anglais Hani, on the 



Srim- "8 



Dimensions, etc 229 



Hurters "9 



Tripping-bar 230 



2 3 



La Mulatierc Dam 231 



American Dams 232 



Calculations Trestles 232 



Wets 234 



Props '37 



Sizes of Props 237 



Sizes of Horses 238 



Frame of Wicket 238 



Remarks 239 



Dimensions of Wicket* 239 



Dimensions of Trestl* - 240 



Dimensions and Cost of Dams 240 



CHAPTER VIII. 



OATB CURTAIN AND BRIDGE DAMS. 

 A-FRAME DAMS. 



SHUTTER AND 



GaU Dams 



General 



Maneuvers 



Dimensions, etc 



Remarks 



( 'urttiiit Dams 



General 



Maneuvers 



Remarks 



The Suresnes Dam 



Calculations for Trestles 



I )ams 



liriJge Hams 



Poses Dam 



flintier Dams 



General 



Maneuvers 



Examples 



Girard Shutter 



Remarks 



.-!-/" riiiiif Dam 



Description 



General Design 



Maneuvers 



Advantages Claimed. 



Calculations 



for Gates or Curtain 



MM 



241 

 241 

 24' 

 241 

 242 



2 *4 

 '44 

 '44 

 *44 

 J 44 



CHAPTER IX. 



DRUM \V1CK1. IS AM) BEAR-TRAPS. 



2 47 

 '47 



*53 

 2 S4 

 2 S4 

 J 54 

 2 S5 

 2 S^ 

 257 



2 57 



I'riim l>aiii ................................. 2 59 



Desi-rijitioii ............................ 59 



Joinville Dam .......................... 2 59 



Remarks ................................ i6 



Chittemlen I >am ........................ *6o 



Desfontainc's Dam ...................... o1 



Ih-tir-trap Hams: 



General .................................. 6 ' 



Description ............................ 26j 



Parker Gates .................... 



Lang Gates ................. 



Old Bear-trap Gates ..................... 263 



( 'al.-ulations ................................... 26 3 



Old Bear-trap ........ , ..... 2& 3 



Parker Bear-trap ....................... 26 4 



Lang Boar-trap ......................... * 6 5 



Tables of Proportions ....................... 2 ^5 



Remarks ................................ 2 <>6 



CHAPTER X. 



RECENT CONSTRUCTION OP MOVABLE DAMS. 



In Kohcmia ................................. a68 



Dam at Troja .......................... 2<5 9 



Dam at Klecan ......................... ^69 



Dam at Libschitz ....................... 7 



Dam at Mirowitz ....................... *7- 



/ America ................................. 1 7 t 



