The VISUALAB is a research and teaching computing laboratory facility at the Department of Civil, Construction, and Environmental Engineering at San Diego State University, California.

The lab specializes in hydraulic and hydrologic engineering applications, and develops world-class online software using standard protocols such as HTML, CSS, PHP, MySQL, and JavaScript.

Extensive use is made of native and commercial software.

The lab features a collection of one-hundred and ten scripts for a variety of applications, including steady and unsteady flow, gradually varied and rapidly varied flow, evapotranspiration, flood routing, sediment transport, channel design, and water quality.

The computer hardware featured are two SUN Unix data servers, one Hewlett-Packard Linux media server, five Apple Imac development workstations, and one Hewlett-Packard Windows XP workstation.