An empirical relationship of soil erosion as a function of rainfall intensity, soil shear strength and soil compressive strength is being developed from a laboratory model to help in predicting soil loss and subsequent increase in total suspended solids leaving a highway construction site during a rainfall event, from simple field measurements. The model consists of a rainfall simulator and a water flume. The rainfall simulator can produce simulated rainfall with intensity as high as 10 inches per hour, the flume is 4.8 meters long and 1.2 meter wide. The relationship is part of a rainfall-runoff-erosion model to allow a highway engineer to evaluate planned temporary sediment controls (TSC) that may be part of a Storm Water Pollution Prevention Plan (SW3P) required for the construction project. Soil loss is measured on a volumetric basis, then could be converted to mass based on the density. The results of the on-going work will be presented and the usefulness of the model will be compared to data from an actual construction site.
|Number of pages||6|
|State||Published - 1997|
|Event||Proceedings of the 1997 24th Annual Water Resources Planning and Management Conference - Houston, TX, USA|
Duration: Apr 6 1997 → Apr 9 1997
|Conference||Proceedings of the 1997 24th Annual Water Resources Planning and Management Conference|
|City||Houston, TX, USA|
|Period||04/6/97 → 04/9/97|