Interstate 58 is a proposed highway in the United States that aims to connect Interstate 40 in California to Interstate 10 in New Mexico. The route is intended to improve transportation and trade across the southwestern region, facilitating easier access to major cities and economic hubs. Although it is not yet constructed, the planning for Interstate 58 includes considerations for environmental impact and community needs. The proposed highway is expected to enhance connectivity and support regional development, making it a significant infrastructure project for the area.