Since 2011, Caltrans and its local partner, the Metropolitan Transportation Authority (Metro), planned to build a five-mile tunnel under the cities of Pasadena and South Pasadena to connect the stub ends of two freeways, the SR-710 and I-210. The $3.2 billion project was fiercely opposed by environmental groups and a coalition of five cities (South Pasadena, La Canada-Flintridge, Glendale, Pasadena, and Sierra Madre). Fortunately, the Draft EIR exposed the project’s safety risks and severe environmental impacts on communities and the environment. In 2017, the Metro Board made the decision to drop the tunnel project and consider less harmful transportation alternatives.

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