US Army Corps of Engineers
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Rio de La Plata Flood Damage Reduction Project

SPONSOR: Puerto Rico Department of Natural and Environmental Resources (DNER).

AUTHORIZATION: Section 101(a)(19) of the Water Resources Development Act of 1990.

REMAINING PROJECT COST: $500 million

FUNDING: American Recovery and Reinvestment Act of 2009 (ARRA) funds were used to construct the project area referenced as Contract 1A. Regular cost-shared construction funds were used to construct the Dorado Bridge Channel & Scour Protection Contract. The remaining project segments were funded under the Bipartisan Budget Act of 2018 to address damages from Hurricane Maria.

LOCATION: The Río de la Plata basin is located about 11 miles west of San Juan and drains approximately 240 square miles.

DESCRIPTION: Heavy rainfall combined with the steep headwater slopes causes frequent flooding in the towns of Dorado, Toa Baja, and Toa Alta. Project features consist of 7.0 miles of channel improvements, 7.6 miles of levees, the replacement of 3 bridges, recreation facilities, and mitigation for the loss of environmental habitats.

BENEFITS: The recommended plan provides 100 year protection upstream of PR Highway 2 and SPF protection downstream, to the towns of Dorado, Toa Baja, Toa Alta, Levittown, and the communities of Mameyal, Ingenio, Campanilla and San Jose.

Dorado Bridge Channel Widening & Scour Protection in the amount of $17,287,546 was awarded on September 2017.

Articulated Concrete Block Mat and Toe Key contract Channel scour protection and toe key revetment between station 19+85 and station 25+07

Supplemental Contract 1 Structures, channelization to Sta. 150+00, completion of West Levee and East Levee to Sta. 150+00

Supplemental Contract 2 Puerto Rico Highway 2 Bridge Replacement

Supplemental Contract 3 Channel excavation, Northeast levee (from Sta. 150+00 to Sta. 265+00), structures, utility relocation and scour protection for Puerto Rico Highway- 22 bridge

Contract 1A in the amount of $23,700,000 (American Recovery and Reinvestment Act funds) was physically completed October 2015