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Locally available aggregate and sediment productionAuthor(s): Randy B. Foltz; Mark Truebe
Source: In: Eighth International Conference on Low-volume roads : June 22-25, 2003 : Silver Legacy Hotel and Conference Center, Reno, Nev. Transportation research record no. 1819(2). Washington, D.C.: National Academies of Science, Transportation Research Board: 185-193
Publication Series: Miscellaneous Publication
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DescriptionSelection of suitable locally available materials to build strong and durable roads with aggregate surfaces is desired to minimize road construction and maintenance costs and to minimize the detrimental effects of sedimentation. Eighteen aggregates were selected from local sources in Idaho, Oregon, South Dakota, and Washington State. Aggregate was placed in shallow metal frames and compacted to simulate a forest road. The levels of runoff and sediment from a high-intensity, long-duration simulated rainstorm were measured. The material tests selected for use in the study included ones that define the basic characteristics of the aggregate, along with a number of tests intended to predict susceptibility to erosion. Each of the tests was statistically evaluated to identify those that best predicted the perceived aggregate quality. The two best indicators of aggregate quality were the results of the sand equivalent test and the P20 portion of the Oregon air degradation test. The best indicator of either runoff or sediment production was the fraction passing the 0.6-mm sieve. Acceptable aggregates, both those of good quality and those of marginal quality, exhibited a 2-order-of-magnitude range in both runoff and sediment production.
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CitationFoltz, Randy B.; Truebe, Mark. 2003. Locally available aggregate and sediment production. In: Eighth International Conference on Low-volume roads : June 22-25, 2003 : Silver Legacy Hotel and Conference Center, Reno, Nev. Transportation research record no. 1819(2). Washington, D.C.: National Academies of Science, Transportation Research Board: 185-193
Keywordsforest roads, aggregates, sedimentation, simulation
- Soil erosion model predictions using parent material/soil texture-based parameters compared to using site-specific parameters
- Forest Road Erosion, Sediment Transport, and Model Validation in the Southern Appalachians
- Effects of traffic and ditch maintenance on forest road sediment production
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