Sedimentation survey of Lago Dos Bocas, Puerto Rico, August 1994
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- Document: Report (pdf)
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Abstract
Sedimentation has reduced the storage capacity of Lago Dos Bocas by approximately 43 percent over the last 52 years from 37.5 million cubic meters in 1942 to 21.3 million cubic meters in 1994. If the calculated long term sedimentation rate of 311,000 cubic meters per year remains unchanged, the water-supply storage capacity of the reservoir will be exhausted by the year 2062. Sedimentation in the reservoir has not been uniform. Three tributaries flow into the lake: the Rio Grande de Arecibo, the Rio Caonillas, and the Rio Limon. The Rio Grande de Arecibo has the largest drainage basin and was determined to deliver more sediment to the reservoir than the other two tributaries combined. Only minor amounts of sediment have deposited in the Rio Caonillas branch of the reservoir indicating that Lago Caonillas, located immediately upstream, could be the major sediment repository along the Rio Caonillas tributary. Excluding the Lago Caonillas drainage basin, the long-term sediment yield of the Rio Grande de Arecibo drainage basin is approximately one million kilograms per square kilometer per year.
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Sedimentation survey of Lago Dos Bocas, Puerto Rico, August 1994 |
| Series title | Water-Resources Investigations Report |
| Series number | 95-4214 |
| DOI | 10.3133/wri954214 |
| Year Published | 1996 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Description | Report: v, 20 p.; 3 Plates: 25.00 x 30.33 inches or smaller |
| State | Puerto Rico |
| Other Geospatial | Lagos Dos Bocas |
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