Holly Street Bridge
Directly north of the Colorado Street Bridge, Holly Street Bridge is the northernmost of the bridges that cross the Arroyo Seco (Los Angeles County) in Pasadena, CA. The concrete arch bridge was designed by W.C. Earle, city engineer, and replaced the 1909 Linda Vista Bridge. The older Linda Vista Bridge was condemned as unsafe and destroyed by California Institute of Technology students using TNT. When the bridge opened to the public on April 11, 1925, it was known as the Linda Vista Bridge. At the time, it was believed to be the longest and highest concrete span  of any bridge in the west. Holly Street Bridge features an open spandrel design and Neoclassical style, like the other Arroyo Seco bridges. The bridge is 423 feet long, 70 feet high, and with a central span 240 feet in length. It is listed in the National Register of Historic Places. The City of Pasadena proposed a seismic retrofit project for the Holly Street Bridge in 2019. Caltrans considers the bridge to be structurally deficient.