ASCE will be sunsetting the Civil Engineering Database (CEDB) in the coming months. We encourage you to start using the ASCE Library to perform content searches. In the ASCE Library, you can save your search results as well as receive email content alerts when new content relevant to your area of interest is published. Try it out today at https://ascelibrary.org.

 

Effects of Surface Drainage on Sediment Yield in Southern Delaware

by Thomas A. Iivari, Northeast Technical Cent, United States,



Document Type: Proceeding Paper

Part of: Irrigation and Drainage

Abstract:

Sediment surveys were conducted over a period of 16 years on two small reservoirs in the Nanticoke River basin, Delaware in order to assess the effects of watershed drainage projects on sediment yield. Herns Pond was used as a control watershed in which no drainage improvement activities were performed while Fleetwood Pond lies at the downstream end of Tyndall Branch in which 38.2 miles of channel were improved to provide drainage. After 16 years, Herns Pond is accumulating sediment at the annual rate of .110 tons per acre of contributing area as compared to .053 tons per acre in Fleetwood Pond. The lower yield in Fleetwood Pond appears to be due to: an increase in infiltration and decrease in surface runoff; more crop cover and residue on farmland; ability to use conservation tillage methods on drained cropland; and use of in-channel sediment traps during and after construction.

Subject Headings: Sediment | Drainage | Surface drainage | Watersheds | Drainage basins | Runoff | Water conservation | Delaware | United States

Services: Buy this book/Buy this article

 

Return to search