151 



Counties not included in (1) — Cass, Clinton, Fayette, Floyd, Miami. 

 Sullivan. 



Railroads not included in (2) — Central Indiana R. R., Chicago and 

 Wabash R. R, Cincinnati, Hamilton & Dayton R. R., Toledo, Peoria & W. 

 R. R.. Toledo, St. L. & W. R. R. 



Electric lines not included in (3) — Marion and Bluffton Traction Co., 

 Bluffton, Geneva & Celina Traction Co., Central Indiana Lighting. Co., 

 Indianapolis Street Railway Co., Louisville and Southern Traction Co.. 

 Louisville and Northern Railway and Light Co., Vincennes Traction Co.. 

 Washington Street Railway Co. 



(5) Includes Indianapolis Telephone Company only. 



Counties in flood districts not included in (4), (6), (7), and (9) — 

 Adams, Blackford. Cass, Clark, Clay, Clinton. Fayette, Floyd, Fountain. 

 Franklin, Gibson, Grant, Greene. Harrison. Howard. Huntington. Jay. 

 Jefferson, Ohio, Parke. Perry. Putnam, Randolph. Ripley, Scott. Sullivan. 

 Switzerland, Tippecanoe, Vanderburg, Vermillion, Vigo, Wabash, Warrick, 

 Wells, White, Whitley. 



(8) Includes loss only in 230 miles of East and West Forks of tbe 

 White River through Morgan. Owen, Greene, Daviess, Knox, Jackson. 

 Lawrence, and Martin counties. 



First there are six main problems to be solved before our Indiana 

 communities can protect themselves against floods. 



First Problem. 

 Flood Flow. 



First there must be proper information as to the amount of water 

 carried safely in a channel. To determine this amount we must first 

 know the rainfall that may reasonably be expected at a time not too 

 remote, and the rapidity with which this rainfall runs down the watershed. 



In considering flood protection in Indiana we are barred at the out- 

 set from a sure solution at present, first, on account of a lack of rainfall 

 records over a sufficiently long time ; second, by a lack of stream gagings 

 to determine the amount of water which does run down our streams dur- 

 ing heavy rains ; and third, by a lack of surveys of watersheds. 



In other words, a heavier storm than any that has been recorded in 

 the last thirty years of our rainfall records, may come in the future, 

 but our records do not serve to determine the probable extent of this 

 storm. 



