Five Year Study of Des Moines River Water Quality

Hydrology and Erosion of Loessial Watersheds
Five agricultural watersheds in the Missouri Valley deep loess soils region in western Iowa were instrumented to determine their hydrology, gully erosion, and surface erosion. Two watersheds...

Irrigation Scheduling on the Minidoka Project, Iowa

Iowa's Dilemma — OR — The Iowa Dilemma

Gravity Flow Reinforced Concrete Pipe Design
Reinforcement was first added to concrete pipe to increase its structural strength in 1910 in Red Oak, Iowa. Reinforced concrete pipe has generally always been accepted on the basis of...

Annual Droughts
Records of temperature, precipitation and crop yield are most useful tools in correlating droughts and crop yield; study of weather records and yield of corn in Iowa indicated that gain...

Destruction of Repairs of Spillway Piers of Keokuk Dam
Rehabilitation of spillway piers of dam in Keokuk, Iowa, after more than 40 yr of service; deteriorated concrete was removed and replaced with temperature-reinforced concrete anchored...

Influence Lines for Reactions of Continuous Trusses
Analogous cantilevered truss method developed which embraces principles of internal and external work as produced by 1-lb load applied at end of structure after all reactions are removed...

Industrial Waste Treatment in Iowa
DataNotAvailable...

Industrial Waste Treatment in Iowa
DataNotAvailable...

Mississippi River Bridge at Dubuque, Iowa
DataNotAvailable...

Mississippi River Bridge at Dubuque, Iowa
DataNotAvailable...

 

 

 

 

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