Hydrologic conditions in the Chicod Creek basin, North Carolina, before and during channel modifications, 1975-81
Water-Resources Investigations Report
84-4025
By: S.A. Watkins and C.E. Simmons
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Abstract
Beginning in late 1978, stream channels throughout the 60-square mile Chicod Creek basin underwent extensive modification to increase drainage efficiency and reduce flooding potential. Drainage modifications in this Coastal Plain basin, consisting primarily of channel excavation and clearing of channel blockages, were completed in December 1981. The hydrologic condition of the basin before and during modification was determined from observed data.
Observed data indicate hydrologic changes occurred in selected basin characteristics. For example, water levels in the surficial aquifer within 250 feet of Juniper Branch declined as much as 0.4 feet during modifications; at distances greater than 250 feet from the stream, ground-water levels did not change. Base flows increased, and suspended-sediment concentrations for high flows were several times greater than before channel modifications. Increases in selected chemical constituent concentrations in stream water during modifications were as follows: calcium, 12 percent; sodium, 18 percent; bicarbonate, 84 percent; and phosphorous, 80 percent. Significant changes were not found in either pesticide concentrations or coliform bacteria counts.
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Hydrologic conditions in the Chicod Creek basin, North Carolina, before and during channel modifications, 1975-81 |
| Series title | Water-Resources Investigations Report |
| Series number | 84-4025 |
| DOI | 10.3133/wri844025 |
| Edition | - |
| Year Published | 1984 |
| Language | ENGLISH |
| Publisher | U.S. Geological Survey, |
| Contributing office(s) | South Atlantic Water Science Center |
| Description | vii, 36 p. :ill., maps ;28 cm. |
| Country | United States |
| State | North Carolina |
| Other Geospatial | Chicod Creek basin |
| Google Analytic Metrics | Metrics page |