Sediment Measurement Techniques: C. Accelerated Valley Deposits

Task Committee on Preparation of Sedimentation Manual, Committee on Sedimentation of the Hydraulics Division, ASCE

Serial Information: Journal of the Hydraulics Division, 1970, Vol. 96, Issue 5, Pg. 1157-1166

Document Type: Journal Paper


Culturally accelerated deposition of sediment in alluvial valleys has been recognized in the U.S. since 1801 or earlier. Such deposition is most common in valleys with drainage areas smaller than a few hundred square miles, where there has been upland gullying, and where substantial proportions of sand were available. The modern sediment deposit may be recognized by texture, color, compaction, distinctive minerals, buried artifacts, or stratification. These deposits are measured using base maps, surveying, boring, mapping, and sampling. Guidance is given in calculating volumes, tabulating, interpreting, and reporting the data obtained.

Subject Headings: Sediment | Mapping | Alluvial channels | Drainage | Sandy soils | Minerals | Geomatic surveys

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