David Evans and Associates offers engineering, transportation and project management services. The company provides customized site-specification services, including environmental and technical studies and site assessments. It specializes in transmission and interconnections, mapping, site development, recreation and visual resource planning, dam safety inspections, hydrographic surveys and mitigation. The company designs and undertakes commercial, industrial and residential land development projects. It offers services to the aviation industry for the construction of military airfields, airports and heliports. In addition, it provides resource management, restoration and water conservation services. The company provides comprehensive planning services for urban, regional and rural areas. David Evans and Associates maintains a presence in Bellevue, Wash.