﻿HYDROLOGY 
  OF 
  NEW 
  YORK 
  789 
  

  

  of 
  71,900 
  feet 
  (13.62 
  miles). 
  The 
  water 
  surface 
  for 
  a 
  30-foot 
  

   channel 
  in 
  earth 
  is 
  334 
  feet 
  wide, 
  and 
  for 
  a 
  21-foot 
  channel 
  310 
  

   feet. 
  The 
  area 
  of 
  cross-section 
  of 
  a 
  30-foot 
  channel 
  is 
  8000 
  square 
  

   feet 
  and 
  for 
  a 
  21-foot 
  channel 
  5500 
  square 
  feet. 
  

  

  The 
  tributary 
  streams 
  may 
  be 
  relied 
  upon 
  to 
  keep 
  the 
  main 
  

   channel 
  full 
  during 
  the 
  winter 
  season, 
  even 
  under 
  the 
  most 
  ad- 
  

   verse 
  conditions 
  of 
  winter 
  drought. 
  Filling 
  in 
  the 
  spring 
  may 
  

   be 
  therefore 
  left 
  out 
  of 
  the 
  account, 
  and 
  the 
  problem 
  is 
  accord- 
  

   ingly 
  simplified 
  to 
  a 
  determination 
  of 
  the 
  quantity 
  required 
  to 
  

   supply 
  lockages, 
  evaporation, 
  percolation, 
  gate-and-sluice-leakage 
  

   losses 
  and 
  wastage. 
  The 
  locks 
  at 
  the 
  ends 
  of 
  the 
  summit 
  level 
  are 
  

   to 
  be 
  740 
  feet 
  in 
  length 
  by 
  80 
  feet 
  wide, 
  with 
  lifts 
  of 
  20 
  feet. 
  Also, 
  

   at 
  Little 
  Falls, 
  129,460 
  feet 
  (24.52 
  miles) 
  east 
  of 
  the 
  east 
  end 
  of 
  

   the 
  summit 
  level, 
  there 
  are 
  to 
  be 
  duplicate 
  sets 
  of 
  tandem 
  lock®, 
  

   with 
  total 
  lift 
  of 
  43 
  feet, 
  the 
  lock 
  chambers 
  being 
  740 
  feet 
  long 
  by 
  

   60 
  feet 
  in 
  width. 
  

  

  West 
  Canada 
  creek, 
  which 
  has 
  a 
  catchment 
  area 
  above 
  its 
  

   mouth 
  of 
  569 
  square 
  miles, 
  flows 
  into 
  the 
  Mohawk 
  river 
  at 
  Her- 
  

   kimer. 
  The 
  several 
  small 
  streams 
  known 
  as 
  Crane 
  creek, 
  Keels 
  

   creek, 
  Knapp 
  brook, 
  Budlong 
  creek, 
  Sterling 
  creek, 
  Bridenbacker 
  

   creek 
  and 
  adjacent 
  territory 
  lying 
  on 
  the 
  north 
  side 
  of 
  the 
  Mohawk 
  

   river 
  and 
  between 
  Herkimer 
  and 
  the 
  east 
  boundary 
  of 
  Ninemile 
  

   creek 
  area 
  have 
  a 
  catchment 
  area 
  of 
  86 
  square 
  miles. 
  To 
  the 
  

   east 
  of 
  Herkimer, 
  on 
  the 
  north 
  side 
  of 
  the 
  Mohawk 
  river, 
  Beaver 
  

   brook 
  and 
  adjacent 
  territory 
  have 
  15 
  square 
  miles, 
  while 
  on 
  

   the 
  south 
  side, 
  between 
  Utica 
  and 
  Little 
  Falls, 
  Ballon 
  creek, 
  

   Factory 
  creek, 
  Ferguson 
  creek, 
  Meyer 
  creek, 
  Steele 
  creek, 
  Fulmer 
  

   creek 
  and 
  adjacent 
  territory 
  have 
  a 
  catchment 
  area 
  of 
  139 
  square 
  

   miles. 
  The 
  total 
  catchment 
  area 
  tributary 
  to 
  the 
  main 
  deep 
  

   waterway 
  between 
  Little 
  Falls 
  and 
  the 
  east 
  end 
  of 
  the 
  summit 
  

   level 
  is 
  therefore 
  (569 
  + 
  86 
  + 
  15 
  + 
  139) 
  = 
  809 
  square 
  miles. 
  This 
  

   area 
  anay 
  be 
  expected 
  to 
  yield 
  from 
  150 
  to 
  200 
  cubic 
  feet 
  of 
  

   water 
  per 
  second 
  in 
  a 
  dry 
  time, 
  which 
  will, 
  it 
  is 
  believed, 
  be 
  

   ample 
  for 
  the 
  various 
  losses 
  and 
  small 
  additional 
  lockage 
  re- 
  

   quirement 
  on 
  the 
  reach 
  of 
  canal 
  between 
  the 
  east 
  end 
  of 
  the 
  

   summit 
  level 
  and 
  the 
  double 
  locks 
  at 
  Little 
  Falls. 
  

  

  According 
  to 
  data 
  furnished 
  by 
  the 
  Board 
  of 
  Engineers, 
  the 
  

   annual 
  traffic 
  is 
  assumed 
  at 
  25,000,000 
  tons, 
  with 
  an 
  assumed 
  

   tonnage 
  per 
  lockage 
  for 
  a 
  30-foot 
  channel 
  of 
  3000 
  tons 
  and 
  for 
  a 
  

   21-foot 
  channel 
  a 
  tonnage 
  per 
  lockage 
  of 
  2500 
  tons. 
  

  

  The 
  question 
  of 
  water 
  supply 
  of 
  canals 
  has 
  been 
  so 
  fully 
  dis- 
  

   cussed 
  elsewhere 
  as 
  to 
  make 
  it 
  impossible 
  to 
  add 
  very 
  much 
  

  

  