United States International Border & Water Commission (USIBWC)

United States & Mexico, U.S. Section, Along the US / Mexico Border in the US (states of Texas, New Mexico, Arizona, and California) and the Republic of Mexico (states of Tamaulipas, Nueveo Leon, Coahuilla, Chihuahua, Sonora, and Baja California)

S&B Infrastructure, Ltd. (S&BI) was the prime provider of IDIQ A-E services for the USIBWC since October 1, 2004.  General services include engineering planning, feasibility and cost benefit studies, construction phase services and construction management, inspection of existing facilities; design services for rehabilitation, renovation, repair, and new construction for civil works associated with surface and subsurface water, flood control (such as channels, levees, dams, and reservoir embankments);  environmental services; permitting support; technical support for environmental documentation in support of NEPA; geotechnical services; surveying and aerial mapping; engineering, hydraulic and hydrologic studies; design and bidding document preparation; and construction assistance services.


Representative projects included:


  • Technical Evaluation, Analysis and Recommendations To Rehabilitate Fort Hancock - El Porvenir International Bridge, Fort Hancock. Texas - El Porvenir, ChihuahuaSBI provided a team of experts in bridge design, analysis, inspection, and rehabilitation to review previous inspection reports and existing bridge plans.

  • Design of Rehabilitation Improvements of the Hidalgo Protective Levee System – S&BI performed preliminary engineering and final design / construction drawings for approximately five miles of existing levees within the vicinity of the City of Hidalgo, in Hidalgo County, Texas. S&BI also prepared plans, specifications, and estimates for construction drawings

  • Technical Analysis & Evaluation of Amistad Dam & Falcon Dam Power Plants –  Technical analysis and evaluation of two dams and power plants. In general, SBI performed a technical evaluation and analysis (for the U.S.-side only).

  • Lower Rio Grande Flood Control Project (LRGFCP), HEC-RAS Model Validation & FLOW-2D Simulation – Work includes update and verification of an existing HEC-RAS model by incorporation of additional cross-sections at more frequent intervals.  S&BI is also providing development and calibration of a new FLO-2D model for the Project Penitas, Texas, to River Mile 28 below Brownsville.

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Member of the National Society of Professional Engineers
Member of the Society of American Military Engineers
Member of the Texas Society of Professional Engineers

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