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Title:	Rio Culebrinas at Aguadilla and Aguada, Puerto Rico : Section 205 Final Detailed Project Report and Environmental Assessment
Authors:	United States. Army. Corps of Engineers. Jacksonville District.
Keywords:	Flood control Environmental protection Puerto Rico
Publisher:	United States. Army. Corps of Engineers. Jacksonville District.
Abstract:	This report describes the problems resulting from the overflow of Rio Culebrinas at the southwest portions of the town of Aguadilla and the community of Espinar at Aguada, formulates several alternatives to reduce flooding damage, and recommends a plan of action. The report was prepared under the authority provided in Section 205 of the Flood Control Act of 1948 as amended. The study was conducted at the request of the Municipalities of Aguadilla and Aguada. The study area lies in the alluvial flood plain of Rio Culebrinas between the municipalities of Aguadilla and Aguada. This area is located in the northwestern coast of Puerto Rico. The Rio Culebrinas has a drainage area of approximately 267 square kilometers. Rio Culebrinas main channel has a relatively low hydraulic capacity at the alluvial valley. The excess discharge flows over the banks of the river into the Cano Madre Vieja alluvial valley producing damage in the adjacent communities. The 100-year flood for existing conditions will affect approximately 703 residential structures. Total damage range from approximately $2.2 million for the 10-year flood to $31.3 million for the Standard Project Flood (SPF) with average annual equivalent damage being approximately $1,157,600. Residences, commerce, and public facilities are, in that order, the most affected land uses. The recommended plan consists of two segments of levees with a total length of approximately 3,300 meters, a 60 meters pilot channel, and interior drainage facilities. The plan protects the southwest portion of Aguadilla and the community of Espinar in Aguada. The plan is design to protect against the 100-Year flood and would reduce 87 percent of the total annual flood damage. This plan maximizes the net national economic development benefits. The total first cost of the recommended plan is approximately $4,816,400 with total annual cost estimated at $318,100. Since total annual benefit is $1,058,500, the implementation of the project would result in a benefit to cost ratio of 3.3 to 1. Under the current cost-sharing policy the Federal Government cost would be $2,597,900 while the non-Federal share would amount to $2,268,500.
Description:	Project Report/Environmental Assessment
Rights:	Approved for Public Release; Distribution is Unlimited
URI:	http://hdl.handle.net/11681/26662
Size:	74 pages/12.71 Mb
Appears in Collections:	Environmental Documents