Rio Del La Plata Flood Control Project, Supplemental Contract 1, Dorando and Toa Baja, Puerto Rico.

onstruction of four (4) major features: East Levee, West Levee, Channel widening with slope and scour protection, and four culvert structures (3A, 6A, 7 and 11); and several minor features to manage interior and exterior drainage such as culverts and drainage swales. This work also includes, but is

not limited to, clearing and grubbing, temporary construction crossings material disposal areas, temporary traffic controls, demolition of abandoned structures, protection of cultural resource areas, surface and ground water control, utilit