Table 33. Estimated Annual Upstream Agricultural Damage from 
Floodwater and Sediment in the United States, 
1942-51 1/ 
Lt of e Annual damage 
Floodwater: 
Crops and pasture $205,694 ,000 
Flood plain scour, gully and 
valley trenching 31,468,000 
Other agricultural (farm buildings, 
stored crops, etc.) 73,059,900 
Sub-total $310, 221,000 
Sediments 
Infertile overwash 20,320,000 
Swamping 13,977 5900 
Drainage and irrigation facilities 12,631,000 
Sub-total 46,931,000 
Indirect (interruption of essential 
farm work, etc. 3h, ,622 ,000 
1/ Estimates prepared by the Soil Conservation Service in 1952. 
These estimates were developed from intensive floodwater and sedi- 
ment damage studies made by the Department over the last 15 years 
in 77 watersheds covering an area of about 52 percent of the 
continental United States. It should be understood that these 
are preliminary estimates derived from a large number of field 
investigations of varying degrees of reliability. 
Salval 
