00_31_32-1_3_C_4_20070928 Geotech Donna Pump to Brownsville Boreholes SandB.pdf

The document is a geotechnical borehole location map for the Lower Rio Grande Flood Control Project, specifically mapping the area between the Donna Pump and Brownsville Levee for the United States Section of the International Boundary and Water Commission. The map consists of three detailed pages: an overview location map, an overall index map showing multiple geographic quadrants, and a detailed satellite/aerial imagery map highlighting the project area along the U.S.-Mexico border, including Brownsville, Matamoros, and the Rio Grande river boundary.

The map set provides precise geographic details for a planned flood control infrastructure project, with color-coded sections showing borehole locations, municipal boundaries, and land use. The imagery includes detailed views of urban areas, transportation infrastructure, and the international border region, with technical annotations indicating scale, project numbering, and geographic reference points. The documents are prepared by S&B Infrastructure, Ltd., and are part of a larger engineering and management project focused on flood control and water management in the Lower Rio Grande region.